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:
Nov. 27, 1984
Filed:
May. 13, 1983
Applicant:
Inventors:
Liborio Casale, Brescia, IT;
Giordano Donelli, Brescia, IT;
Assignee:
Caffaro S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ;
Abstract
In an improved process of the continuous production of tetrachlorophthalonitrile, molten atomized phthalonitrile, chlorine, hydrochloric acid and possibly nitrogen are fed simultaneously below the grid of a reactor with a fluidized bed of activated carbon, and the tetrachlorophthalonitrile is separated and recovered continuously by simple cooling.