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Edward K. Spitz and Lawton E. Cox received US Patent No. 4,131,661 on December 26, 1978, filed April 7, 1977. It was assigned to Raybestos Manhattan Inc.
The patent's 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.
- Author
- Edward K. Spitz; Lawton E. Cox
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 4,131,661
- Date
- December 26, 1978
- Library no.
- ACL Doc 23841 · asbestosclaims.law/library/23841
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 259 KB
Where it was listed
- Asbestos, April 1979, in its patents department (the year's issues)
Cited on this site
Cite this document
Edward K. Spitz, Lawton E. Cox. “Waste asbestos recovery from production of asbestos products (US Patent 4,131,661, 1978).” December 26, 1978. US Patent No. 4,131,661. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 23841. https://asbestosclaims.law/library/23841.
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