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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 4259309 B1

PDFFull Text
Date of Patent:
Mar. 31, 1981

Filed:

Aug. 08, 1979

Method for obtaining gaseous hydrogen chloride from dilute aqueous

Applicant:
Inventors:

Alfred Coenen, Marl, DE;

Kurt Kosswig, Marl, DE;

Ferdinand von Praun, Haltern, DE;

Assignee:

Chemische Werke Huls AG, Marl, DE;

Attorney:

Wells; Gilbert L.

Primary Examiner:

Brian E Hearn

Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423481 ; 423488 ; 564497 ;
Abstract

An improvement in the process for obtaining gaseous hydrogen chloride by extracting dilute aqueous hydrochloric acid with amines wherein:

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