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:
Nov. 04, 1980
Filed:
Jun. 14, 1976
Engel R Adigamov, Bashkirskaya ASSR, Sterlitamak, SU;
Yakov A Gurvich, Moscow, SU;
Alexandr G Liakumovich, Kazan, SU;
Igor J Logutov, Bashkirskaya ASSR, Sterlitamak, SU;
Jury I Michurov, Bashkirskaya ASSR, Sterlitamak, SU;
Alexei S Polenov, Bashkirskaya ASSR, Sterlitamak, SU;
Vladimir A Yanshevsky, Novokuibyshevsk, SU;
Other;
Abstract
Method of removing aluminum-containing catalyst from phenol alkylation products comprises treating phenol alkylation products with water at a temperature of 165.degree.-250.degree. C., with water being in molar excess to aluminum in a range of 3-20. The resulting residue of meta-aluminate is easily separated by filtration. The present invention allows eliminating constant control of aluminum content in alkylation products, easily removing the catalyst therefrom and eliminating the loss of phenol alkylation products.