Separation process

Details Separation process Separation process

B - Operations, Transporting

01

D

182/154, 362/66

B01D 57/00 (2006.01)

Patent

CA 1036724

ABSTRACT OF THE DISCLOSURE The instant invention relates to a method for removing dissolved compounds from solution by decomposing them and removing the decomposition products continuously and simultaneously by at least two different mechanisms. The decomposition is an equilibrium reaction, thus simultaneous removal from the solution of two or more products of decomposition results in efficient and complete removal. Preferably, the dissolved compound is the hydrolyzable salt of a weak acid and a weak base in an aqueous solution. The simultaneous removal processes for the hydrolysis products include stripping, distillation, extraction, adsorption, and liquid membrane separations. Preferably, more than one process is utilized to remove the separate decomposition products; that is, the method utilized herein relates to a process wherein one decomposition product is removed by adsorption on or reaction with a solid sorbent, while the other decomposition product is simultaneously stripped with steam. The removal processes are further selected so as to leave behind a solution which is substantially free from the starting compound and any of its undesirable decomposition products.

204066

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