Abstract

An ionic liquid as a solvent in the hydration reaction of α-pinene to α-terpineol. The ionic liquid is obtained from the reaction of an amine and an inorganic acid. The use of the ionic liquid as solvent favors the selectivity towards the formation of α-terpineol and once the reaction product has been brought to room temperature, the organic phase can be physically separated from the inorganic one by decantation. The inorganic phase contains the ionic liquid, water and reaction catalyst and can be directly reused for a new reaction batch.

IPC Classes  ?

• B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
• C07C 29/09 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
• B01J 27/16 - PhosphorusCompounds thereof containing oxygen
• B01J 27/02 - Sulfur, selenium or telluriumCompounds thereof

Abstract

A cogeneration system to generate thermal energy in form of hot water, using the system's solar collector directly as an evaporator and a heat exchanger integrated in a thermal tank used as a condenser. A variable capacity expander (turbine) is used and the organic working fluid selection is specific for this application. Thus is provided a technological alternative for the production of electricity and thermal energy using a renewable energy source.

IPC Classes  ?

• F01K 25/10 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
• F01D 15/10 - Adaptations for driving, or combinations with, electric generators
• F01D 17/10 - Final actuators
• F24S 80/20 - Working fluids specially adapted for solar heat collectors
• F01K 23/04 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
• F24S 20/30 - Solar heat collectors for heating objects, e.g. solar cookers or solar furnaces
• F01K 11/02 - Steam engine plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines

Abstract

The present invention refers to developing and obtaining new composite materials based on rubbers and/or elastomers and/or their recycled can be reused through an in situ polymerization program between the combination of different monomers and/or oligomers type diisocyanate, esters, or organic peroxides cross-linking agent, which in their combination generate a binding agent capable of modifying the intrinsic chemical, thermal, rheological, and mechanical properties in the material and the chains chemical cross-linking originated by the incorporation of organic peroxides which are able to accelerate or decrease the reaction rate.

IPC Classes  ?

• C08L 17/00 - Compositions of reclaimed rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 9/02 - Copolymers with acrylonitrile
• C08L 9/06 - Copolymers with styrene
• C08L 23/22 - Copolymers of isobuteneButyl rubberHomopolymers or copolymers of other iso-olefins
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain

Abstract

The present invention discloses a treatment for recovering silver from ores containing occluded silver, predominantly pyrolusite, which includes a pre-treatment of the manganese-argentiferous ore with sulfur dioxide produced by roasting elemental sulfur, generating manganese sulphate, and pregnant solution with more than 90% silver recovery.

IPC Classes  ?

• C22B 11/00 - Obtaining noble metals
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 11/08 - Obtaining noble metals by cyaniding
• C22B 47/00 - Obtaining manganese

Abstract

A method for obtaining a promoted molybdenum sulfide catalyst and a promoted molybdenum sulfide added with a nanometric additive. The obtained catalyst exhibits an improved catalytic activity in hydrotreatment reactions, such as hydrodesulfurization, hydrodenitrogenation, and hydrogenation. The invention presents as an advantage, in addition to a low cost composition by their transition metals content, the activation of thiosalts precursor using an environmentally friendly atmosphere.

IPC Classes  ?

• B01J 27/051 - Molybdenum

Abstract

The invention relates to the oxidation, intercalation, and exfoliation treatment of standard graphite or expanded graphite, by means of inorganic oxidant agents like ammonium, potassium or sodium persulphate, in an aqueous means. The products of said treatment, according to electronic microscopy analysis, are nanometric graphene plates or laminates having thicknesses of less than 100 nm.

IPC Classes  ?

• C01B 31/04 - Graphite
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

Abstract

The present invention relates to an apparatus for the continuous production of carbon nanotubes (CNT), as well as the method to carry it out. The apparatus for the CNT synthesis includes: two sets or more of tubes to synthesize in its interior the CNT; a set of nozzles for the same number of tubes that each set has, to feed to the interior of the tubes the precursory chemical compounds of the CNT; a furnace to maintain one of the sets to a suitable temperature to allow the formation of the CNT inside the tubes; a system for the detaching and collection of the CNT formed in the previous stage; and a control system, preferably a PLC (PLC by its abbreviation in English) to program the sequence of activities of the equipment.

IPC Classes  ?

• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• B01J 19/26 - Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
• D01F 9/12 - Carbon filamentsApparatus specially adapted for the manufacture thereof