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:
Feb. 08, 2005
Filed:
Dec. 31, 2002
Mihir Kanti Choudhuri, Assam, IN;
Sanjay Kumar Dehury, Assam, IN;
Upasana Bora, Assam, IN;
Jayashree Nath, Assam, IN;
Boyapati Manoranjan Choudhary, Andhra Pradesh, IN;
Lakshmi Kantam Mannepalli, Andhra Pradesh, IN;
Mihir Kanti Choudhuri, Assam, IN;
Sanjay Kumar Dehury, Assam, IN;
Upasana Bora, Assam, IN;
Jayashree Nath, Assam, IN;
Boyapati Manoranjan Choudhary, Andhra Pradesh, IN;
Lakshmi Kantam Mannepalli, Andhra Pradesh, IN;
Council of Scientific and Industrial Research, New Delhi, IN;
Abstract
The present invention relates to an economic and environmentally clean process for the preparation of the pyridinium salt of fluorotrioxo-chromate (VI), PFC, having the chemical formula CHNH[CrOF], by direct reaction of stoichiometric amounts of hydrofluoric acid, chromium trioxide and pyridine demonstrating approxomately 100% atom economy.