Process and installation for the recovery or...

Details Process and installation for the recovery or... Process and installation for the recovery or...

C - Chemistry, Metallurgy

07

C

260/534, 182/6,

C07C 59/01 (2006.01) C07C 51/47 (2006.01) C12P 7/56 (2006.01) C12P 7/58 (2006.01) C12P 13/14 (2006.01) C12P 13/20 (2006.01)

Patent

CA 1135718

ABSTRACT OF THE DISCLOSURE The invention relates to a process for the recovery of .alpha.-hydroxy- and .alpha.-amino-carboxylic acids from sugary media containing them. According to the process of the invention : - in a first phase, the mixture from which it is proposed to recover the .alpha.-hydroxy- or .alpha.-amino-carboxylic acid and which contains the latter in the form of its calcium salt is contacted with a cationic resin in the calcium form for a sufficient time to reach optimal adsorption of said calcium salt and then, - in a second phase, the previously saturated resin is eluted by resorting to water. The process according to the invention enables the quan- titative production of a pure calcium salt.

334680

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