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:
Jan. 08, 1980
Filed:
May. 12, 1977
Valentina J Borgardt, Bashkirskaya ASSR Sterlitamak, SU;
Jury I Volodin, Kuibyshevskaya oblast Novokuibyshevsk, SU;
Zoya S Shalimova, Bashkirskaya ASSR Sterlitamak, SU;
Boris T Pantukh, Bashkirskaya ASSR Sterlitamak, SU;
Sofya A Egoricheva, Bashkirskaya ASSR Sterlitamak, SU;
Grigory I Rutman, Bashkirskaya ASSR Sterlitamak, SU;
Jury I Michurov, Bashkirskaya ASSR Sterlitamak, SU;
Other;
Abstract
A method of purifying alkylphenyl from impurities contained therein resides in continuous crystallization of alkylphenol and continuous washing of the resulting crystals with a solvent. Washing of the crystals is performed in a layer formed by said crystals, the layer moving downward continuously, with a solvent moving upward. The invention makes it possible to purify alkylphenols effectively and produce them with a high degree of purity with minimum losses of the product, as well as to reduce consumption of the solvent.