Process for the production of water insoluble peroxycarboxylic acids
AssigneeDegussa Akteingesellschaft
InventorManfred Dankowski
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Abstract
The invention is directed to a process for hte production of water insoluble peroxycarboxylic acids in which the carboxylic acid is suspended in the reaction mixture and reacted with hydrogen peroxide in the presence of pyridine-2,6-dicarboxylic acid.
Claims5
A process for the suppression of foam in peroxycarboxylic acid forming reactions comprising carrying out the peroxidation reaction of the carboxylic acid in the presence of a foam suppression agent, wherein said peroxidation reaction comprises reacting a carboxylic acid selected from aliphatic carboxylic acids having from 6 to 16 carbons and aromatic carboxylic acids having 7 to 9 carbons, with a peroxidation mixture comprising a mixture of H.sub.2 O.sub.2, H.sub.2 O and H.sub.2 SO.sub.4, and wherein said foam suppression agent is 2,6-pyridine dicarboxylic acid, shown in the formula below:
- ##STR3## and said foam suppression agent is present in the amount 0.35 to 1.6 wt % relative to the amount of H.sub.2 O.sub.2 present.
Dependencies are inferred from the claim text.