Ashland Oil, Inc.

Clifford Ward

Frank H Turrill

John W Newman

Charles A Johnson

William P Hettinger, Jr

Howard F Moore

Robert H Wombles

Roy E Booth

William R Sawran

Norman W Hall

Gilbert P Anderson, Jr

Eugene Chao

Jr Hettinger

Disclosed herein is an improved pitch for making readily stabilizable, substantially nonmesophasic carbon fibers. The pitch has a softening point of about 250.degree. C. (480.degree. F.) or above and is produced from an unoxidized thermal petroleum pitch by selectively reducing or eliminating a portion of the low molecular weight materials in a very short period of time so that the tendency to produce mesophase pitch is eliminated or reduced and so that the chemical integrity of the components of the higher molecular weight fractions is preserved as much as possible. Also disclosed is a method of producing carbon fibers therefrom and rovings or mats from such fibers.

Process for the manufacture of carbon fibers and feedstock therefor

Disclosed herein is an improved pitch for making readily stabilizable, substantially nonmesophasic carbon fibers. The pitch has a softening point of about 250.degree. C.(480.degree. F.) or above and is produced from an unoxidized thermal petroleum pitch by selectively reducing or eliminating a portion of the low molecular weight materials in a very short period of time so that the tendency to produce mesophase pitch is eliminated or reduced and so that the chemical integrity of the components of the higher molecular weight fractions is preserved as much as possible. Also disclosed is a method of producing carbon fibers therefrom and rovings or mats from such fibers.

A combination process for upgrading hydrocarbon fractions obtained from raw shale oil, oil products of coal processing and select fractions of crude oils comprising sulfur, nitrogen and metal contaminants to produce jet fuel product fractions such as JP4, JP5, JP8 and other turbine-type fuel materials provided. The combination of integrated processing steps involving hydrotreating, acid extraction of basic nitrogen compounds and hydrofining thereof to produce a feed composition suitable for catalytic reforming in the absence of significant hydrocracking whereby jet fuel boiling range material is produced significantly reduces by the combination the hydrogen requirements of the process. A further significant contribution to the combination operation resides in the utilization of a catalytic cracking operation of restricted severity to particularly convert high-boiling portions of the hydrocarbon feed fractions to product boiling in the jet fuel boiling range desired before acid extraction of basic nitrogen compounds and further refining thereof as above provided by hydrotreating, reforming and hydrofining of the select product of the reforming operation. Thus, the combination operation of the invention substantially maximizes the yield of desired jet fuel products under hydrogenating conditions particularly conserving the consumption of hydrogen.

Combination process for upgrading oil products of coal, shale oil and

Removal of hydroxy-substituted and/or mercapto-substituted-hydrocarbons from coal liquids which comprises contacting the coal liquids with an aqueous composition containing an alkanolamine, thereby providing a two-phase mixture, and then separating the mixture into an aqueous extract phase and a naphtha rich raffinate phase.

Process for removal of hydroxy- and/or mercapto-substituted hydrocarbons

Disclosed is a catalyst and method for converting mercaptans and mercaptide compounds in aqueous alkaline solution to disulfides. Catalytic agent is a metal complex synthesized from 3,3',4,4'-benzophenonetetracarboxylic dianhydride and converted to either the alkali metal salt or to the acid form. The method for oxidizing the mercaptide compounds comprises contacting mercaptans and mercaptide compounds in aqueous alkaline solution with air in the presence of the catalyst and subsequently separating alkaline solution from the resultant disulfide compounds.

Catalyst for oxidizing mercaptans and mercaptide compounds and method

Metal complex and method for preparing

Method for oxidizing mercaptans and mercaptide compounds from aqueous

Disclosed is a catalyst and method for converting mercaptans and mercaptide compounds in aqueous alkaline solution to disulfides. Catalytic agent is metal compound of 3,4-tetrapyridinotetraazaporphine (3,4-TPTAP) preferably impregnated on an inert granular support. Method comprises contacting mercaptans and mercaptide compounds in aqueous alkaline solution with air in the presence of the catalyst and subsequently separating alkaline solution from the resultant disulfide compounds.

Method and catalyst for removing mercaptans and mercaptide compounds

Disclosed is a catalyst and method for converting mercaptans and mercaptide compounds in aqueous alkaline solution to disulfides. Catalytic agent is metal compound of tetrapyridinoporphyrazine (TPPA) preferably impregnated on an inert granular support. Method comprises contacting mercaptans and mercaptide compounds in aqueous alkaline solution with air in the presence of the catalyst and subsequently separating alkaline solution from the resultant disulfide compounds.

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Louisa, KY, United States of America

Clifford Ward