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. 24, 1984
Filed:
Nov. 16, 1981
Jurgen Stadelhofer, Dortmund, DE;
Heinz-Gerhard Franck, Bad Soden-Neuenhain, DE;
Helmut Kohler, Mulheim, DE;
Rutgerswerke Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
A process is disclosed for the production of hydrogenated aromatic compounds and mixtures thereof by thermal treatment of aromatic oils or mixtures, derived from coal or petroleum, wherein the improvement over the prior art resides in thermally treating aromatic oils of boiling range 280.degree.-450.degree. C., with residues from the processing of liquid coal conversion products and/or petroleum refining, for up to 10 hours in a temperature region between 200.degree. and 380.degree. C. and at a pressure of maximum 15 bar, with good inter-mixing of the reaction components, and thereafter separating the products by distillation from the pitch-like residue.