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:
Feb. 27, 1979
Filed:
Oct. 12, 1976
Stanislav J Pavlov, Yaroslavl, SU;
Valentina A Stepanova, Yaroslavl, SU;
Olga V Bogdanova, Yaroslavl, SU;
Sergei G Kuznetsov, Yaroslavl, SU;
Tatyana G Dorofeeva, Yaroslavl, SU;
Alexandr N Bushin, Yaroslavl, SU;
Gennady A Stepanov, Yaroslavl, SU;
Leonid K Eratov, Yaroslavl, SU;
Ariadna B Kirnos, Yaroslavl, SU;
Boris A Plechev, Yaroslavl, SU;
Alexei P Kharchenko, Perm, SU;
Konstantin N Bildinov, Perm, SU;
Oleg P Yablonsky, Yaroslavl, SU;
Jury V Orlov, Yaroslavl, SU;
Boris E Ivanov, Kazan, SU;
Valerian M Sobolev, Moscow, SU;
Mikhail A Korshunov, Yaroslavl, SU;
Svetlana B Boikova, Yaroslavl, SU;
Rimma G Kuzovleva, Yaroslavl, SU;
Other;
Abstract
A method of separating proximate boiling-point hydrocarbons using solutions of monovalent copper salts in solvents, said solvents being alkyl-substituted amides and alkyl esters of phosphorus-containing acids having a P.dbd.O group, N-alkyl-substituted amides of carboxylic acids, N-alkyl-substituted lactams, dialkyl sulphoxides, alkoxynitriles and N-alkyl-substituted aminonitriles. The method can be used for separating hydrocarbons from small quantities of acetylene compounds and cyclopentadiene. Large quantities of acetylene compounds are separated from the mixture of proximate boiling-point hydrocarbons by contacting the mixture with said solvents containing no salts of monovalent copper.