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:
Mar. 18, 1986
Filed:
Mar. 29, 1985
Applicant:
Inventor:
Matthew K Juneau, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423300 ;
Abstract
Residual alkali metal salt (e.g. NaCl) is removed from an alkali metal alkoxide and/or aryloxide-polyphosphonitrilic halide reaction product by neutralizing the reaction solution with acid and water extracting the salt using a lower water-soluble alcohol (isopropanol) to effect rapid phase separation.