Abstract:
Alkanesulfonic acids and alkanesulfonyl chlorides, free of undesirable side products arising from side-chain chlorination, are prepared by oxidation with hydrogen peroxide of the corresponding alkanethiol, dialkyldisulfide or alkyl alkanethiolsulfonate mixed with aqueous hydrochloric acid.
Abstract:
A process is provided for converting waste distillation bottoms containing t -alkylphenols with substantial unknown constituents to useable para- t -alkylphenols. The process comprises heating the waste distillation bottoms with phenol and an acid catalyst to effect transalkylation. The waste distillation bottoms typically result from the production of para- t -alkylphenol and/or 2,4-di- t -alkylphenol.
Abstract:
Alkyl alkanethiolsulfonates are prepared by oxidation of the corresponding alkanethiol or dialkyl disulfide by aqueous hydrogen peroxide in the presence of a Group VIII transition metal catalyst.
Abstract:
Alkanesulfonic acids and alkanesulfonyl chlorides, free of undesirable side products arising from side-chain chlorination, are prepared by oxidation with hydrogen peroxide of the corresponding alkanethiol, dialkyldisulfide or alkyl alkanethiolsulfonate mixed with aqueous hydrochloric acid.
Abstract:
A process for separating emulsions of alkanesulfonyl chloride in aqueous hydrochloric acid comprises passing the emulsion through a carbon bed, a graphite bed, a layer of alkanesulfonyl chloride or a combination thereof; and allowing the emulsion to enter a settling vessel.
Abstract:
Alkanesulfonic acids are prepared by oxidation of the corresponding alkanethiol or dialkyl disulfide using an oxygen-containing gas as the oxidizing agent, in the presence of water and catalytic amounts of a lower dialkyl sulfoxide and a hydrogen halide.
Abstract:
Alkanesulfonic acids are prepared by oxidation of the corresponding alkanethiol or dialkyl disulfide using an oxygen-containing gas as the oxidizing agent, in the presence of water and catalytic amounts of a lower dialkyl sulfoxide and a hydrogen halide.
Abstract:
A process for separating emulsions of alkanesulfonyl chloride in aqueous hydrochloric acid comprises passing the emulsion through a carbon bed, a graphite bed, a layer of alkanesulfonyl chloride or a combination thereof; and allowing the emulsion to enter a settling vessel.