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:
May. 04, 1982
Filed:
Oct. 02, 1980
Cornelis G van de Moesdijk, Elsloo, NL;
Stamicarbon, B.V., Geleen, NL;
Abstract
The process relates to hydroxylammonium salts. Cyclic process for the preparation and processing of a hydroxylammonium salt solution, in which an aqueous acid reaction medium is kept in circulation between a hydroxylammonium salt synthesis zone and an oxime synthesis zone, and in which the circulating liquid is continuously supplied with nitrogen monoxide, which serves as nitrogen source for the formation of the hydroxylammonium salt, and which is converted into hydroxylamine by catalytic reduction with hydrogen. The circulating liquid is, before it enters the hydroxylammonium salt synthesis zone, subjected to a stripping process by bringing the circulating liquid via a heat-exchanging surface in heat-exchange with nitrogen monoxide containing water vapor, upon which the water vapor condenses, and the remaining gas containing nitrogen monoxide as nitrogen source is used in the reduction of nitrogen monoxide to hydroxylamine.