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. 26, 1978
Filed:
Apr. 07, 1977
Applicant:
Inventors:
Edward K Spitz, Hanahan, SC (US);
Lawton E Cox, Johns Island, SC (US);
Assignee:
Raybestos-Manhattan, Inc., Trumbull, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29H / ; D01F / ;
U.S. Cl.
CPC ...
264 38 ; 162155 ; 264183 ;
Abstract
Waste asbestos generated from a production process utilizing a surfactant as the dispersant and a coagulant as a solidifying agent is recovered for reprocessing by treating the waste with an inorganic acid to react with the precipitated surfactant and solubilize the precipitating ions. The precipitating ions are removed by washing. The insoluble residue, containing asbestos and the surfactant is mixed and reacted with an alkali to form a dispersion of asbestos that may be reprocessed by conventional methods.