C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/520.2, 260/5
C07C 57/10 (2006.01) C07C 51/47 (2006.01)
Patent
CA 1276176
PURIFICATION OF CRUDE SORBIC ACID Abstract of the Invention Crude sorbic acid is substantially purified by solvent treatment. The crude crystalline acid is contacted with an organic solvent in an amount which is effective for dissolving impurities but under conditions such that no more than a minor proportion of the sorbic acid is dis- solved. This produces a substantially purified crystalline sorbic acid and an organic liquor comprising the solvent and containing a substantial portion of the aforesaid impurities. The organic liquor can be mechanically sep- arated from the crystalline sorbic acid.
469610
Brown Henry Clay
Crowley Richard Paul
Heintz Daniel Nicholas
Ryland James Robert III
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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