C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/213
C01B 21/14 (2006.01) B01D 61/36 (2006.01)
Patent
CA 1327693
Abstract of the Disclosure Concentrated solutions of inorganic hydroxylammonium salts can safely be produced in a process for concentrating a dilute solution of an inorganic hydroxylammonium salt in a solvent by contact with a membrane having a sorption side and a desorption side. The process comprises contacting the dilute solution with the sorption side of a membrane, which is substantially permeable to the solvent and substantially impermeable to the solute of the solu- tion, to sorb the solvent and permit the solvent to flow through the membrane to the desorption side, and desorbing the solvent from the desorption side of the membrane. Highly concentrated aqueous solutions of hydroxylammonium salts which are heat sensitive are produced by the novel process of the invention which does not require directly heating the solution and is substantially free of hazards.
604584
Brooker Robert Thomas
Dotson Ronald Lynnewood
Brooker Robert Thomas
Dotson Ronald Lynnewood
Swabey Ogilvy Renault
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