C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 57/15 (2006.01) C07C 51/353 (2006.01) C07C 51/50 (2006.01)
Patent
CA 2324635
A process for reducing the amount of nitrification-inhibiting sulfur compounds in reaction solutions obtained by the sulfur-compound-catalyzed conversion of .alpha.,.beta.-unsaturated carboxylic acids into the corresponding trans or cis isomer, in which an oxidizing agent is added in molar deficiency up to a maximum of twice the molar amount, based on the catalyst compound, to the reaction mixture obtained after the termination of the isomerization and then isolating the corresponding trans or cis isomer in a known manner and working it up and supplying the resultant process waste waters to a biological cleanup stage.
Scheuchenstuhl Willibald
Sengstschmid Helmut
Zimmermann Curt
Dsm Fine Chemicals Austria Gmbh
Dsm Fine Chemicals Austria Nfg Gmbh & Co Kg.
Riches Mckenzie & Herbert Llp
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