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:
Sep. 14, 1982
Filed:
Sep. 05, 1980
Wool Development International Limited, London, GB;
Abstract
In wool scouring systems in which scouring liquor is continuously withdrawn from the scouring bowls for separation of solid contaminants and wool grease and then recycled to the bowls, improved separation of solids is achieved by adding a soluble silicate, and preferably also a polyelectrolyte to the liquor before solids separation. Silicate can advantageously replace soda as scouring agent. Improved operation can also be obtained by controlled flow down from the circulatory system, as at 27, and by passing the jet phase from a disc centrifuge 17 to a decanter centrifuge 15 for further separation of solids. Alternatively, the entire liquor circulation may be passed first to the disc centrifuge and only the jet phase to the decanter, the middle liquor phase being recycled.