Abstract

2 concentration above 3,000 ppm.

IPC Classes  ?

• C01B 11/02 - Oxides of chlorine
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• B01J 14/00 - Chemical processes in general for reacting liquids with liquidsApparatus specially adapted therefor
• B01J 7/02 - Apparatus for generating gases by wet methods

Abstract

Devices and methods for safely using acid/chlorite ClO2 generator chemistry for water treatment, whereby a valve prevents chemical draw unless there is both vacuum within the reaction chamber as well as suitable water volume in the flow chamber for dilution, are described. The float-dependent valve can also allow for direct venting from the reaction chamber to the flow chamber in the event of elevated pressure in the reaction chamber. This approach delivers an inherently safer ClO2 generator design for systems that utilize high strength reactor zones with ClO2 concentration above 3,000 ppm.

IPC Classes  ?

• C01B 11/02 - Oxides of chlorine
• C01B 11/06 - Hypochlorites, e.g. chlorinated lime
• C25B 1/26 - ChlorineCompounds thereof

Abstract

−; wherein the composition has a pH of at least 12.5. A process for forming the composition and process for treating suspensions of particles with the composition are also disclosed.

IPC Classes  ?

• C08B 37/00 - Preparation of polysaccharides not provided for in groups Derivatives thereof
• C08B 37/16 - CyclodextrinDerivatives thereof
• C08L 5/16 - CyclodextrinDerivatives thereof
• D21H 17/24 - Polysaccharides
• D21H 17/66 - Salts, e.g. alums
• D21H 17/00 - Non-fibrous material added to the pulp, characterised by its constitutionPaper-impregnating material characterised by its constitution
• D21H 21/06 - Paper forming aids
• C08K 3/16 - Halogen-containing compounds

Abstract

A composition comprising a compound mixture dissolved in water, the compound mixture comprising at least one chlorite salt at least one cyclodextrin; and at least one alkaline base; provided that the cyclodextrin is in an amount of 0.13 to 13 parts by mass for every 50 parts by mass of chlorite anion ClO2-, and the alkaline base is in an amount of up to 13 parts by mass for every 50 parts by mass of chlorite anion ClO2-; wherein the composition has a pH of at least 12.5. A process for forming the composition and process for treating suspensions of particles with the composition are also disclosed.

IPC Classes  ?

• D21H 17/24 - Polysaccharides
• D21H 17/66 - Salts, e.g. alums
• D21H 17/00 - Non-fibrous material added to the pulp, characterised by its constitutionPaper-impregnating material characterised by its constitution
• D21H 21/06 - Paper forming aids
• C08L 5/16 - CyclodextrinDerivatives thereof

Abstract

A method for treating water with chlorine dioxide wherein the reactor is contained inside of the water supply line being treated and an eductor is used to draw in the chemical precursors. The method offers facilitated chlorine dioxide (ClO2) generation and safer operation over wider ClO2 mass flow capacity, thus offering a more adaptable system for ClO2 treatments. Noise reduction and ease-of-use versus traditional eductor-based ClO2 generators are additional benefits from using this method.

IPC Classes  ?

• C01B 11/02 - Oxides of chlorine