Process for the production of salts of...

Details Process for the production of salts of... Process for the production of salts of...

C - Chemistry, Metallurgy

07

C

260/522.2

C07C 59/305 (2006.01)

Patent

CA 1159084

ABSTRACT OF THE DISCLOSURE An improvement in the process of producing certain water soluble salts of carboymethyloxy succinic acid from zinc or alkaline earth metal salts of said acid by reacting said zinc or alkaline earth metal salts with certain carbonate salts is disclosed. The improvement comprises the specific order of addition of gradually adding said zinc or alkaline earth metal salts of carboxymethyloxy succinic acid to said carbonate salts in an aqueous medium to form a reaction product comprising the water soluble salts of carboxymethyloxy succinic acid and insoluble zinc or alkaline earth metal carbonates. These insoluble carbonates are readily and quickly filtered providing a significant improvement in filterability over that experienced when said order of addition is reversed.

339868

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