Solvay (societe Anonyme)

Solvay Interox Gmbh

Interox Chemicals Limited

Perstorp Specialty Chemicals Ab

Solvay Interox Limites

Graham Carr

Alun P James

John P Sankey

Nicholas A Troughton

Paul Richard Harrison

Duncan J MacQuarrie

Valerie Lawton

Arnold B Lambert

Andrew J Willson

James H Clark

Suzanne Howarth

Michael C Rocca

Kelly J Morton

A polyurethane obtained by reaction between

Catalytic compositions

This invention relates to a composition comprising antimony trifluoride and silica, a method for the preparation of said composition and use of said composition as a catalyst in a process for the oxidation of cyclohexanone to &egr;-caprolactone.

Process for the oxidation of cyclohexanone to &egr;-caprolactone

Process for the production of an aqueous monoester peroxycarboxylic acid solution by reaction of a peroxygen compound with at least one dicarboxylic acid and with at least one alcohol optionally in the presence of an acid catalyst. Aqueous monoester peroxycarboxylic acid solution obtainable by this process. Use of the aqueous monoester peroxycarboxylic acid solution as disinfectant.

Process for the production of an aqueous monoester peroxycarboxylic acid solution, the solution obtainable by this process, and its use as disinfectant

Storage stable aqueous acidic solutions, often having a pH of up to 1 containing an ester peracid and/or an acid peracid can be obtained by reacting a diester satisfying the general formula R,&mdash;O&mdash;CO&mdash;R,&mdash;CO&mdash;O&mdash;R,in which R,and R,each represents a alkyl group containing from 1 to 4 carbon atoms which may the same of different and R,represents an aliphatic alkylene group optionally unsaturated which may be linear or branched containing from 2 to 6 carbon atoms with aqueous hydrogen peroxide in the presence of an acid, such as sulphuric acid and permitting the compositions to progress towards equilibrium concentrations. By starting with a diester, perhydrolysis generates an ester peracid which is a particularly effective peracid. The process can be controlled to produce solutions containing a high peracid content and within a wide range of ratios of ester peracid to acid peracid.

Percarboxylic acid solutions

Storage stable, aqueous acidic solutions having a pH in the range of from 1 to 5 comprising at least one ester peracid having general formula

Peroxygen compositions

Aryl imido substituted peroxycarboxylic acids

Peroxyacid manufacture

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Liverpool, United Kingdom

Graham Carr