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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.:

US 4162903 B1

PDFFull Text
Date of Patent:
Jul. 31, 1979

Filed:

Mar. 08, 1978

Physical solvent absorption of carbon dioxide and hydrogen sulphide for

Applicant:
Inventors:

Claude Blanc, Pau, FR;

Jean-Yves Chenard, Pau, FR;

Jean-Jacques Delpuech, Laxou, FR;

Olivier Oliveau, Lescar, FR;

Assignee:

Societe Nationale Elf Aquitaine (Production), Paris, FR;

Attorney:

Brisebois & Kruger

Primary Examiner:

Bernard Nozick

Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 73 ;
Abstract

The present invention is related to a process for absorbing acid gases from industrial gaseous mixtures by washing under pressure with a solvent. The invention is concerned more particularly with the use of hexamethyl phosphorotriamide OP[N(CH.sub.3).sub.2 ].sub.3, pure or mixed with water, as a physical solvent of acid gases. This new physical solvent is of particular interest in the treatment of natural acid gases and refinery gases.

Find Patent Forward Citations

Blanc, Claude. (1979). Physical solvent absorption of carbon dioxide and hydrogen sulphide for (U.S. Patent No. 4162903). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4162903

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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