Rhodia Operations

Arkema Inc.

Andrew D Polli

Olivier Larcher

Thomas English

Vijay R Srinivas

Francis Francis

Patricia Wing-Kee Cheung

Jean-Philippe R Chauvin

Brian E Lordan

Simon Ifrah

Naotaka Ohtake

Simon Infrah

Continuous photochemical production of high purity linear mercaptan and sulfide-containing compositions.

Continuous photochemical production of high purity linear mercaptan and sulfide compositions

The present invention is directed to a high surface area, high pore volume porous alumina, comprising: aluminum oxide, optionally, silicon oxide and aluminosilicates, and optionally one or more dopants, said alumina having a specific surface area of from about 100 to about 500 square meters per gram and a total pore volume after calcination at 900&#xb0; C. for 2 hours of greater than or equal to 1.2 cubic centimeters per gram, wherein less than or equal to 15% of the total pore volume is contributed by pores having a diameter of less than 10 nm.

Alumina catalyst support

A porous inorganic composite oxide containing oxides of aluminum and of cerium and/or zirconium, and, optionally, oxides of one or more dopants selected from transition metals, rare earths, and mixtures thereof, and having a specific surface area, in m/g, after calcining at 1100&#xb0; C. for 5 hours, of &#x2267;0.8235[Al]+11.157 and a total pore volume, in cm/g, after calcining at 900&#xb0; C. for 2 hours, of &#x2267;0.0097[Al]+0.0647, wherein [Al] is the amount of oxides of aluminum, expressed as pbw AlOper 100 pbw of the composite oxide; a catalyst containing one or more noble metals dispersed on the porous inorganic composite oxide; and a method for making the porous inorganic composite oxide.

Porous inorganic composite oxide

Growing community of inventors

Washington Crossing, PA, United States of America

Andrew D Polli