The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 1979
Filed:
Jun. 15, 1977
Anthony M Hildon, Tattenhall, GB;
Peter F Greenhalgh, Widnes, GB;
Interox Chemicals Limited, London, GB;
Abstract
The invention provides a continuous process for the production of a peracid in a chlorinated hydrocarbon solvent comprising the steps of: (a) providing an aqueous phase comprising sulphuric acid, hydrogen peroxide and water; (b) providing an organic phase comprising a chlorinated hydrocarbon solvent and carboxylic acid selected from the group consisting of acetic acid and propionic acid; and (c) contacting said aqueous and organic phases countercurrently to produce an aqueous solution comprising sulphuric acid and water and an organic product solution comprising chlorinated hydrocarbon solvent and a peracid corresponding to said carboxylic acid. Desirably the process includes the added step of: (d) utilizing at least a portion of said aqueous solution to provide at least a portion of the aqueous phase of step (a).