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:
Dec. 25, 1984
Filed:
Jun. 22, 1982
Applicant:
Inventors:
Janos Besan, Veszprem, HU;
Miklos Kovacs, Veszprem, HU;
Laszlo Kulcsar, Veszprem, HU;
Ferenc Maier, Veszprem, HU;
Jozsef Pernyeszi, Veszprem, HU;
Assignee:
Nehezvegyipari Kutato Intezet, Veszprem, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548262 ;
Abstract
A process for the preparation of 1,2,4-triazole by reacting hydrazine, formic acid and formamide and/or ammonia in a molar ratio of 1 mole of hydrazine to 1 to 3 moles of formic acid to 1 to 2 moles of formamide and/or ammonia at a temperature of 140.degree. to 220.degree. C. The main advantage of the process of the invention resides in obtaining 1,2,4-triazole with an improved yield and purity.