Process for the production of purified camphorsulfonic acid salt

Details Process for the production of purified camphorsulfonic acid salt Process for the production of purified camphorsulfonic acid salt

1969-08-18

1977-09-20

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14300

Patent

active

040497038

ABSTRACT:
A liquid ion exchange process for recovering a concentrated purified aqueous solution of a camphorsulfonic acid salt from a dilute impure solution of the same wherein the ion exchange medium is a liquid secondary amine and the pH of the mixture during the ion exchange is maintained at 3 - 6 by treating the mixture with a polyprotic acid having two pKs of less than 2.5.

REFERENCES:
patent: 3221046 (1965-11-01), Johnson et al.
Groggins, "Unit Processes in Organic Synthesis", pp. 540, 541, 549, (1935).

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