Removal of excess halide ions in aqueous liquid formulations...

Details Removal of excess halide ions in aqueous liquid formulations... Removal of excess halide ions in aqueous liquid formulations...

C - Chemistry, Metallurgy

09

B

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C09B 67/54 (2006.01) B01J 41/04 (2006.01) B01J 41/14 (2006.01) C09B 11/04 (2006.01) C09B 67/34 (2006.01)

Patent

CA 1314662

Mo-2974 VE-018 REMOVAL OF EXCESS HALIDE IONS IN AQUEOUS LIQUID FORMULATIONS OF BASIC DYESTUFFS ABSTRACT OF THE DISCLOSURE There is disclosed a procedure for reducing the halide content of cationic or basic dyes and consequently the corrosive effect of aqueous formulations of these dyes on stainless steel. The dyes are incorporated into aqueous formulation which may range from neutral to acidic and exposed to an anionic exchange resin. Suitable techniques include stirring beads of the resin into the aqueous formulation and passing the aqueous formulation through an ion exchange column. Mo-2974

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