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:
Apr. 06, 1976
Filed:
Nov. 02, 1973
Takeshi Yamashita, Nobeoka, JA;
Tooru Ide, Nobeoka, JA;
Sueo Kamada, Nobeoka, JA;
Takao Kitamura, Nobeoka, JA;
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JA;
Abstract
Dicyan is produced by reacting hydrocyanic acid with oxygen or oxygen-containing inert gas in an aqueous solution of copper nitrate or copper nitrate and one or more nitrates of alkali metals, alkaline earth metals or aluminum at a pH of from -0.5 to 1.5. Almost all the small quantity of nitrogen oxides by-produced in the reaction can be removed by absorbing them in the catalyst solution in which the reaction is terminated or retarded and the resulting solution can be reused by recycling.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile