Magnum Cementing Services Operations Ltd. (Canada)
National Silicates Partnership (Canada)
Inventor
Mesher, Shaun T.
Mcdonald, Michael
Abstract
A method of producing a material. The material is produced by the steps of: providing a geopolymer mixture or solution comprising an aluminosilicate and an alkali material; allowing the geopolymer mixture or solution to partially set to form an at least partially set geopolymer including pore spaces; and exposing the at least partially set geopolymer to a metal silicate solution or mixture containing a metal silicate to allow the metal silicate to enter the pore spaces and react to form additional material within the pore spaces. The material may be used in well-cementing and as an abandonment plug.
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS AT AUSTIN (USA)
PQ CORPORATION (USA)
Inventor
Van Oort, Eric
Mcdonald, Michael
Abstract
A method and agent to induce accelerated creep deformation of shale rock formations in the annular gap between a shale formation and non-cemented sections of a casing string have been developed. A fluid containing alkali silicate or a modified alkali silicate is added to the annular space between the shale rock formation and the casing string. The alkali silicate promotes creep deformation of the shale rock, effectively closing the annulus surrounding the casing. It has been found lithium silicate provides the strongest shale-casing bond and is the presently preferred material for closing abandoned wells.
A microporous crystalline CHA material having a molar silica to alumina ratio (SAR) ranging from 10 to 15 and a fraction of A1 in the zeolite framework of 0.63 or greater is disclosed. A method of selective catalytic reduction of nitrogen oxides in exhaust gas that comprises contacting exhaust gases, typically in the presence of ammonia, urea, an ammonia generating compound, or a hydrocarbon compound, with an article comprising the disclosed microporous crystalline is also disclosed. Further, a method of making the disclosed microporous crystalline material is disclosed.
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
A method of producing hydrothermally stable chabazite (CHA) zeolites is disclosed. The disclosed method is based on the use of reaction mixtures that (1) are essentially void of alkali metal cations and (2) contain the N,N,N-trimethyl-1-adamantyl ammonium (TMAda+) organic as the sole OSDA. The disclosed method results in a higher crystalline CHA zeolite that exhibits hydrothermal stability. There is also disclosed a zeolite material having a CHA-type framework structure made by the disclosed method. A method of selective catalytic reduction of NOx in exhaust gas using the material described herein is also disclosed.
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
B01J 29/72 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing iron group metals, noble metals or copper
A water-based paint production process and product reduces costs by replacing at least a portion of the resin with high ratio soluble silicates having a SiO2:Na2O or SiO2:K2O weight ratio that is higher than 3.3 for sodium silicates and higher than 2.4 for potassium silicates. The high ratio soluble silicate is used as a co-binder for minimizing the costs involved with the use of resin in paint. Use of the high ratio soluble silicate maintains the scrub resistance of the paint and eliminates the need for a pH stabilizing agent, leading to a proportional reduction in the coalescing agent. Because of the complex structures formed by silicates of high weight ratio, the viscosity of the paints will increase, reducing the demand for thickeners. Replacing the organic resins with inorganic soluble silicates lowers the amount of volatile substances in paints, providing more environmentally friendly paint compositions.
The invention provides compositions and methods for sealing subterranean spaces such as natural or induced fractures, vugs or annular spaces. The composition is composed of a base fluid consisting of a soluble alkali silicate, a gas generating additive, solids and a setting agent. The gas generating additive may be coated or uncoated. The gas generating additive may also be in the form of a slurry. In the case of coated additives, the coating may act as a retarder or an accelerator to the expansion and setting agent of the soluble alkali silica. Similarly, the choice of carrier fluid in a slurry may retard or accelerate the expansion and setting of the alkali silicate-based plug.
C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
C09K 8/504 - Compositions based on water or polar solvents
C09K 8/516 - Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls characterised by their form or by the form of their components, e.g. encapsulated material
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Silicates, namely crystalline and amorphous alkali-metal silicates and their aqueous solutions; Geopolymers, namely synthetic alkali-activated cements; geopolymer cement-based patching and repair materials comprising solid aluminosilicates together with alkali metal silicates.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical additives comprising silicas, ceramic compositions
and powders, metallic oxides, and zeolite for use in the
manufacture of polymers, plastics, foams, surface coatings,
fabrics and textiles for further use in a wide variety of
manufactured products.
13.
STABILIZED MICROPOROUS CRYSTALLINE MATERIAL, THE METHOD OF MAKING THE SAME, AND THE USE FOR SELECTIVE CATALYTIC REDUCTION OF NOx
There is disclosed a microporous crystalline material comprising a crystal structure having building units of double-6-rings (d6r) and pore opening of 8-rings, wherein the material comprises a first metal chosen from alkali-earth group, rare-earth group, alkali group or mixtures thereof, and a second metal chosen from copper, iron or mixtures thereof, wherein the material has molar silica to alumina ratio (SAR) from 3 to 12, and is further steamed to enhance stability. Methods of making the crystalline material are also disclosed. There is also disclosed a method of selective catalytic reduction of nitrogen oxides in exhaust gas, comprising at least partially contacting the exhaust gases with an article comprising the disclosed microporous crystalline material.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Chemical additives comprising silicas, ceramic compositions and powders, metallic oxides, and zeolite for use in the manufacture of polymers, plastics, foams, surface coatings, fabrics and textiles for further use in a wide variety of manufactured products
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Industrial chemicals and specialty chemicals, namely, sodium silicates, potassium silicates, amorphous silicon dioxide, magnesium silicate, and magnesium sulfate
(2) Paint additives, namely, flattening agents, amorphous silicon dioxide
(3) All purpose cleaning preparations and industrial use detergents, namely formulated cleaning compounds for commercial and institutional use, namely detergents, builders, bleaches and sours (1) Technical assistance and consulting services related to use of silicates, water treatment chemicals, and industrial chemicals
01 - Chemical and biological materials for industrial, scientific and agricultural use
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
industrial chemicals and specialty chemicals, namely, sodium silicates, potassium silicates, amorphous silicon dioxide, magnesium silicate, and magnesium sulfate; paint additives for use in the manufacture of paint including flattening agents and silicas for reducing reflection of paint and to add texture; chemical paint additives including flattening agents and silicas for reducing reflection of paint and to add texture; abrasives for use in the manufacture of dental abrasives All purpose cleaning preparations, industrial use detergents Technical advice and technical consultancy relating to the use of water treatment chemicals for treating water technical advice and technical consultancy relating to chemical research concerning the use of silicates, water treatment chemicals, and other chemical products
Embodiments of spackling and similar compounds that include hydrated silica as low-density filler are provided. Various forms of hydrated silica, particle sizes, and specific gravities, are used to generate compositions exhibiting a wide range of properties, which may include thermal insulative properties, mass density properties, and smoothness. Other additives may be included to enhance thermal properties and mass density properties, as well as modify light reflective properties, opacity, and color. Embodiments may be used to correct defects within interior and exterior construction surfaces and/or prepare surfaces for an additional coating. Other properties of the hydrated silica composition are used to increase yield and improve work-place safety when working with the composition.
This invention relates to a composition and method of fracturing subterranean formations utilizing a polymerized alkali silicate. The fracturing fluid includes an alkali silicate such as sodium silicate and an acid such as hydrochloric acid. The sodium silicate is polymerized to a silica gel using an acid. The resulting silica gel has a pH from about 2 to less than 7.5.
A process for preparing a silica-alumina composition containing of from 30 to 70%wt silica and of from 70 to 30 %wt of alumina, which process comprises (a) preparing an aqueous mixture containing aluminum sulfate and having a pH in the range of from 1.0 to 6.5; (b) adding alkali metal aluminate to the mixture obtained in step (a) to increase the pH of the mixture to within the range of from 7.1 to 12.
There is disclosed a highly crystalline, small crystal, ferrierite zeolite prepared from a gel containing a source of silica, alumina, alkali metal and a combination of two templating agents. The resulting material includes ferrierite crystals having a particle size of about or less than about 200 nm. The desired crystal size can be achieved by using a specific composition of the gel. The purity of the material and the crystal size was determined by using X-ray powder diffraction and scanning electron microscopy. The material has excellent surface area and micropore volume as determined by nitrogen adsorption.
C01B 39/44 - Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
23.
USE OF AQUEOUS ALKALI ALUMINOSILICATE FOR PROFILE MODIFICATION, WATER CONTROL AND STABILIZATION
Embodiments of the invention relate to methods for making and compositions including aqueous alkali aluminosilicates used for conformance. The aqueous alkali aluminosilicates provide similar reaction characteristics of alkali silicates, an in addition provide enhanced conformance properties due to their ability to crystallize.
There is disclosed a microporous crystalline material having pore opening ranging from 3 to 5 Angstroms, where the material comprises a first metal chosen from alkali earth group, rare earth group, alkali group, or mixtures thereof, and a second metal chosen from iron, copper or mixtures thereof; and has a molar silica to alumina ratio (SAR) from 3 to 10. The microporous crystalline material disclosed herein may comprise a crystal structure having building units of double-6-rings (d6r) and pore opening of 8-rings as exemplified with framework types defined by the Structure Commission of the International Zeolite Association having structural codes of CHA, LEV, AEI, AFT, AFX, EAB, ERI, KFI, SAT, TSC, and SAV. There is also disclosed a method of selective catalytic reduction of nitrogen oxides in exhaust gas, comprising at least partially contacting the exhaust gases with an article comprising the disclosed microporous crystalline material.
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
C01B 39/46 - Other types characterised by their X-ray diffraction pattern and their defined composition
TThere is disclosed a microporous crystalline material having pore opening ranging from 3 to 5 Angstroms, where the material comprises a first metal chosen from alkali earth group, rare earth group, alkali group, or mixtures thereof, and a second metal chosen from iron, copper or mixtures thereof; and has a molar silica to alumina ratio (SAR) from 3 to 10. The microporous crystalline material disclosed herein may comprise a crystal structure having building units of double-6-rings (d6r) and pore opening of 8-rings as exemplified with framework types defined by the Structure Commission of the International Zeolite Association having structural codes of CHA, LEV, AEI, AFT, AFX, EAB, ERI, KFI, SAT, TSC, and SAV. There is also disclosed a method of selective catalytic reduction of nitrogen oxides in exhaust gas, comprising at least partially contacting the exhaust gases with an article comprising the disclosed microporous crystalline material.
C01B 39/54 - Phosphates, e.g. APO or SAPO compounds
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
Embodiments of the invention relate to methods for making and compositions including zeolite with an impregnated titanium dioxide. Such zeolite/titanium dioxide compositions may be useful, for example, as a substitute or extender for titanium dioxide used in coatings.
Embodiments provide slurries of water and zeolite. These slurries have beneficial properties when mixed with asphalt. These beneficial properties may include extension of the asphalt as well as a decrease in the temperature used to process the cement. In some embodiments additional additives are included, such as anti-strip amines. Methods of making and using the slurries, as well as cement mixtures incorporating the slurries are also included herein.
There is disclosed a method to synthesize microporous crystalline material comprising a metal containing chabazite having a crystal size greater than 0.5 microns and a silica-to-alumina ratio (SAR) between 5 and 15, wherein the method is carried out without the use of an organic structural directing agent and without requiring calcination. There is also disclosed a large crystal organic free chabazite made according to the disclosed method. In addition, there are disclosed methods of using the disclosed crystalline material, such as in the selective catalytic reduction of NOx in exhaust gases.
There is disclosed a method of making, through direct synthesis, a catalyst comprising an Fe-SAPO-34 molecular sieve. There is also disclosed an Fe-SAPO-34 molecular sieve made according to the disclosed method herein, wherein the molecular sieve contains both framework iron and iron cations at ion-exchange sites. In addition, there is disclosed a method of using the Fe-SAPO-34 disclosed herein in a selective catalytic reduction reaction, typically in the presence of ammonia or urea, to reduce or remove nitric oxides from exhaust emissions.
Embodiments of the invention relate to methods and compositions for formation of silica-based hydrogels including titanium dioxide (TiO2) as a dispersion. Such hydrogels may be useful, for example, as a substitute or extender for titanium dioxide used in coatings.
A process for preparation of silica xerogel catalyst support particles having high surface areas involves ageing a silica hydrogel at a pH from 3 to 5 and at a temperature of 45°C or more. The ageing at low pH leads to a silica gel which may be converted to a xerogel having a pore volume of 1.5 cm 3 /g or more and a surface area of 600 m 2 /g or more by removal of liquid from the pore structure by solvent exchange with a liquid solvent having a surface tension of 35 mN/m or less. The resulting particles are useful for carrying catalyst metal compounds, such as a chromium compounds, in the pore structure to act as catalyst precursors. These catalyst precursors may be activated into porous catalyst particles suitable for use for olefin polymerisation to provide high activity and for forming high molecular weight polymers (low MI polymers) with good crack resistance.
There is disclosed an organic-free, metal-containing zeolite Beta with a silica-to-alumina ratio (SAR) ranging from 5 and 20, and a metal content of at least 0.5 wt.%. There is also disclosed a method of making such a zeolite Beta without organic structure directing agent (SDA). The metal, which may comprise Fe or Cu, can be found in amounts ranging from 1-10 wt.%. A method of selective catalytic reduction of nitrogen oxides in exhaust gases using the disclosed zeolite is also disclosed.
Methods for preparing mixtures of natural or artificial zeolite with at least one of recycled asphalt shingles and recycled asphalt pavement are disclosed. Mixtures allow better long-term storage of the recycled asphalt shingles or recycled asphalt pavement when it is exposed to the elements. The pre-mixed zeolite is able to absorb some amount of water and act as a type of anti-block material and prevent portions of the recycled asphalt shingles or recycled asphalt pavement from clumping or agglomerating. Mixes prepared as described herein may be useful, for example, for mixture with hot mix asphalt and cold patch asphalt.
There is disclosed a microporous crystalline material comprising a metal containing chabazite having a crystal size greater than 0.5 microns and a silica-to- alumina ratio (SAR) greater than 15, wherein the metal containing chabazite retains at least 80% of its initial surface area and micropore volume after exposure to temperatures of up to 900°C in the presence of up to 10 volume percent water vapor for up to 1 hour. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
B01J 35/10 - Solids characterised by their surface properties or porosity
C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
C01B 39/54 - Phosphates, e.g. APO or SAPO compounds
Process for preparing a modified zeolite Y which process comprises subjecting zeolite Y having a silica to alumina molar ratio of at least 10 to calcination at a temperature of from 700 to 1000 °C wherein (i) the steam partial pressure is at most 0.06 bar at a temperature of from 700 to 800 C, (ii) the steam partial pressure is at most 0.08 bar at a temperature of from 800 to 850 C, (iii) the steam partial pressure is at least 0.03 bar at a temperature of from 850 to 900 C, and (iv) the steam partial pressure is at least 0.05 bar at a temperature of from 900 to 950 C and (v) the steam partial pressure is at least 0.07 bar at a temperature of from 950 to 1000 C, a modified zeolite Y obtainable by such process, zeolite Y having a silica to alumina molar ratio of at least 10, the infrared spectrum of which has a peak at 3700 cm-1 but substantially no peaks at 3605 and 3670 cm-1 and zeolite Y having a silica to alumina molar ratio of at least 10, which zeolite Y has an acidity as measured by exchange with perdeuterated benzene of at most 20 micromole/gram.
The present invention relates to a method for ameliorating the salinity of drilling waste that is generated over the course of drilling for oil & gas using water-based drilling fluid. In particular for drilling waste that is generated when using a potassium silicate-based drilling fluid. Salinity is a common problem since salt-based additives are commonly added to drilling fluids to obtain certain desirable properties such as shale inhibition. Potassium salts represents a commonly used drilling fluid additive to inhibit the swelling and dispersion of shale. Salinity in the drilling fluid can further increase as a result of drilling fluid contact with the geological formations being drilled.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Zeolites for use as molecular sieves, absorbents, ion exchangers, desiccants, fillers, carriers, and separation products all for use in the manufacture of polymers and plastics or air, soil and water treatment products.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Potassium silicate either anhydrous, hydrous, crystalline, glassy or in solution, or in admixture with other alkaline salts, useful in the manufacture of gels, cements, coatings, detergents and the like.
44.
NOVEL IRON-CONTAINING ALUMINOSILICATE ZEOLITES AND METHODS OF MAKING AND USING SAME
There is disclosed iron-containing aluminosilicate zeolites having both framework iron and iron cations on the ion-exchange sites. There is also disclosed a direct synthesis method of making an iron-containing aluminosilicate zeolite, which does not require the use of an intermediate step, such as ion-exchange or impregnation. In addition, there is disclosed a method of using the iron-containing aluminosilicate zeolite disclosed herein in a selective catalytic reduction reaction, typically in the presence of ammonia, to reduce or remove nitric oxides from exhaust emissions.
F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
45.
NOVEL MICROPOROUS CRYSTALLINE MATERIAL COMPRISING A MOLECULAR SIEVE OR ZEOLITE HAVING AN 8-RING PORE OPENING STRUCTURE AND METHODS OF MAKING AND USING SAME
There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900 0C in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.
A silica xerogel, a process for making it, and a process for using it to reduce chill haze in beer includes incorporation in the xerogel of one or more alkali metals, optionally in combination with one or more alkaline earth metals. The pH of the xerogel is between 8.0 and 10.5, preferably between 8.5 and 10.0.
B01J 20/10 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
C12H 1/04 - Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material with the aid of ion-exchange material or inert clarification material, e.g. adsorption material
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
zeolites for use as molecular sieves, absorbents, ion exchangers, desiccants, fillers, carriers, and separation products all for use in the manufacture of polymers and plastics or air, soil and water treatment products
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Chemical composition used for beer clarification, polyol scavenging, wine fining, selective adsorption and ion exchange.
(2) Chemical composition containing magnesium silicate used for beer, clarification, polyol scavenging, wine fining, selective adsorption and ion exchange.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
05 - Pharmaceutical, veterinary and sanitary products
11 - Environmental control apparatus
14 - Precious metals and their alloys; jewelry; time-keeping instruments
19 - Non-metallic building materials
21 - HouseHold or kitchen utensils, containers and materials; glassware; porcelain; earthenware
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Industrial chemicals and specialty chemicals, namely, sodium silicates, potassium silicates, silicas, magnesium silicate, magnesium sulfate, and microspheres; paints and paint additives, flatting agents, silicas and reflective glass beads; cleaning preparations, abrasive preparations and detergents, formulated cleaning compunds for commercial and institutional use, namely, detergents, builders, bleaches and sours; systems and processes for treatment of industrial and municipal raw and waste water; glass products, namely spherodized and coated glass particles. (1) Technical assistance and consulting services related to use of silicates, water treatment and other chemical products.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Aluminosilicates for General Industrial Uses for Ion Exchange, Catalysis, Adsorption and Drying, Abrasive Agents, Cleaning Compounds, Personal Care Products, Agriculture, Food Products, Cosmetics, and Pharmaceutical Additives
01 - Chemical and biological materials for industrial, scientific and agricultural use
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
(1) Siliceous binders and fillers for refractory cements and acid-resistant cements, parting compositions for adhesive operations, and adhesives containing soluble alkali silicates; soluble inorganic alkali silicates, soluble organic alkali silicates, bleaching compositions and laundry sours and microfine synthetic silicas; and nonionic and anionic surface active agents and detergents for washing and laundering operations, washing compositions, and laundry dedusting compositions containing some paraffin oils.
(1) Consultation services, namely, the furnishing of technical advice and assistance in the selection and operation of water purification processes using colloidal silica.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Silicate of soda, soluble silicates, mixtures of which soluble s1licates are an essential ingredient, and other adhesives, binders, protective coatings and heavy chemicals.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Silicate of soda, soluble silicates, mixtures of which soluble silicates are an essential ingredient, and other adhesives, binders, protective coatings and heavy chemicals.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Silicate of soda, soluble silicates, mixtures of which soluble silicates are an essential ingredient, and other adhesives, binders, protective coatings and heavy chemicals.
