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:
Jan. 01, 1980
Filed:
Nov. 21, 1977
Applicant:
Inventors:
Assignee:
Mitsui Toatsu Chemicals, Incorporated, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23D / ;
U.S. Cl.
CPC ...
431 11 ; 2603464 ; 2603467 ;
Abstract
Byproducts obtained in the preparation of phthalic anhydride are treated by heating the byproducts to a temperature sufficient to maintain the byproducts in a molten state and thereafter atomizing the molten byproducts with atomizing air having a temperature of at least 60.degree. C. for combustion. The byproducts may be low boiling point and/or high boiling point fractions obtained in the purification step by distillation of crude phthalic anhydride produced by the partial oxidation of ortho-xylene or naphthalene.
Quick Actions:
Toyoda, Yoshiaki. (1980). Process for the treatment of byproducts obtained in the preparation of (U.S. Patent No. 4181489). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4181489
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile