Shell Oil Comapny

Mossi & Ghisolfi Overseas S.a.

M&g USA Corporation

Shell Polypropylene Company

Thomas F Brownscombe

Ronald Marshall Bass

Scott Lee Wellington

Thomas C Forschner

Susan Secor Pfrehm

Carma J Gibler

Linda R Chamberlain

Donn Anthony Dubois

William Larry King

Lynn Henry Slaugh

Pui Kwan Wong

Zaida Diaz

Stanley Nemec Milam

Carl Lesley Willis

Jiang-Jen Lin

Larry S Corley

William P Gergen

Craig A Stevens

Raymond Lawrence June

James Laurel Buechele

Harold E De La Mare

Maryanne Mores

George C Blytas

Richard A Kemp

Brendan Dermot Murray

Robert Lawrence Blackbourn

Ananda M Chatterjee

Thomas Carl Semple

Kevin L Rollick

Ye-Mon Chen

Howard L Fong

Hoe H Chuah

Stanley E Wilson

James D McCullough, Jr

Michael Wayne Potter

Narayana Mysore

Keith Michael Kreitman

Nazim S Nathoo

John Bernard Rodden

William W Hart

Peter Anthony Kilty

Steve Edward Brewer

Mark R Tompkin

Garo Vaporciyan

Contact of a crude feed with one or more catalysts containing a transition metal sulfide produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The crude product is a liquid mixture at 25&#xb0; C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed. In some embodiments, gas is produced during contact with one or more catalysts and the crude feed.

Systems and methods of producing a crude product

Contact of a crude feed with a hydrogen source in the presence of an inorganic salt catalyst produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The inorganic salt catalyst may includes one or more alkali metal salts and/or one or more alkaline-earth metal salts. The crude product is a liquid mixture at 25&#xb0; C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.

Contact of a crude feed with a hydrogen source in the presence of an inorganic salt catalyst produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The inorganic salt catalyst comprises alkali metals, alkaline earth metals, or mixtures thereof. The crude product is a liquid mixture at 25&#xb0; C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.

Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The crude product is a liquid mixture at 25&#xb0; C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed. In some embodiments, gas is produced during contact with one or more catalysts and the crude feed.

Contact of a crude feed with a hydrogen source in the presence of an inorganic salt catalyst produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The inorganic salt catalyst may include one or more alkali metals. The crude product is a liquid mixture at 25&#xb0; C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.

Disclosed is a method for selective carboxylation of naphthoic acid, or other aromatic mono-acids to form primarily 2,3-naphthalene dicarboxylic acid (2,3-NDA) or other aromatic diacids which comprises reacting said aromatic mono-acid in the presence of one or more metal oxide catalysts, alone, or in combination, and in the presence of about 0.2 to 0.8 moles excess of base over aromatic mono-acid, at a temperature of about 380&deg; C. to about 420&deg; C., and, in a second step, disproportionating the product of said selective carboxylation at a temperature above about 420&deg; C. to form a product with a greatly improved yield of 2,6-naphthalene dicarboxylic acid, or other aromatic dicarboxylic acid.

Process for carboxylation of naphthoic acid to naphthalene dicarboxylic acid

Process for improving yields in a disproportionation reaction (high yield Henkel)

Disclosed is an integrated process for producing 2,6-naphthalene dicarboxylicacid comprising oxidizing a methylnaphthalene feedstock, hydrodebrominating the crude naphthoic acid product under conditions different from any work known in the art, forming a potassium salt of the acid; disproportionating the potassium salt to produce 2,6 potassium salts of NDA; selectively precipitating K NDA; selectively precipitating the monopotassium salt of 2,6 NDA(KHNDA); disproportionating the KHNDA into 2,6 NDA and K2NDA; further reacting the 2,6 NDA in a pipe reactor; and drying the product 2,6 NDA by conventional means or directly slurrying directly into a PEN process. The process can tolerate impurities in the economical methylnaphthalene feed and the resulting 2,6 NDA is of high quality with <50 ppm potassium.

Integrated process for the production of 2, 6-naphthalene dicarboxylic acid

A method is provided to produce dicarboxylic or tricarboxylic aromatic acid from salts of such acids, the method including the steps of providing an aqueous solution of a salt of a dicarboxylic or tricarboxylic aromatic acid, the aqueous solution having a pH of about 7 or greater; contacting the aqueous solution with sufficient carbon dioxide to lower the pH of the aqueous solution resulting in precipitation of at least a portion of the dicarboxylic or tricarboxylic aromatic acid; separating precipitated dicarboxylic or tricarboxylic aromatic acid from the solution; and recovering carbon dioxide from the solution.

Purification of aromatic diacids

Method for increasing the yield of 2,6 -NDA

Process for making an aromatic diacid in one step using a single catalyst system

An oxidation free process for converting a hydroxy substituted aromatic to an aromatic diacid which comprises reacting a hydroxy substituted aromatic with excess basic salt in the presence of carbon dioxide at disproportionation/isomerization reaction conditions.

Process for producing diacids by carboxylation of phenolic compounds

Process to prepare low density porous crosslinked polymeric materials

Growing community of inventors

Houston, TX, United States of America

Thomas F Brownscombe