Gail Marie Qualeatti

44104600, Oct 18, 1983

Dec 9, 1981

6/329357

Gail M. Qualeatti - Palatine IL
Dalia Germanas - Des Plaines IL

UOP Inc. - Des Plaines IL

C11C 312

260409

Unsaturated carboxylic acids may be reduced to an ester or to a corresponding alcohol by treatment with hydrogen in the presence of a reducing catalyst system. The reducing catalyst system which is used in the present invention comprises rhenium and a nitrogen-containing compound composited on a solid support as exemplified by rhenium and ammonium hydroxide composited on gamma-alumina. By utilizing this catalyst system, it is possible to obtain products in which the carbonyl group of the molecule has been reduced with some retention of the double bond of the carbon chain.

44460732, May 1, 1984

Aug 5, 1981

6/290120

Gail M. Qualeatti - Palatine IL
Dalia Germanas - Des Plaines IL

UOP Inc. - Des Plaines IL

C11C 312

260409

Unsaturated carboxylic acids may be reduced to an ester or to a corresponding alcohol by treatment with hydrogen in the presence of a reducing catalyst. The reducing catalyst which is used in the present invention comprises cadmium and ruthenium in a low valence oxidation state composited on a solid support. If so desired, the catalyst may also contain a platinum group metal of Group VIII of the Periodic Tale. By utilizing this catalyst which may be exemplified by cadmium, ruthenium and platinum composited on gamma alumina in a process in which hydrogen is continuously bled from the reaction vessel, it is possible to obtain products in which the carboxyl group of the molecule has been reduced without materially reducing the double bonds of the compound.

45473196, Oct 15, 1985

Oct 13, 1983

6/541644

Gail M. Qualeatti - Palatine IL

UOP Inc. - Des Plaines IL

C11C 312

260409

A supported, phosphorus-modified zerovalent nickel catalyst shows improved selectivity in the hydrogenation of fatty materials. The increased selectivity of this catalyst permits continuous reduction of fatty materials with a selectivity comparable to that observed in batch reduction using a more conventional nickel catalyst.

45199515, May 28, 1985

Jul 5, 1983

6/511052

Gail M. Qualeatti - Palatine IL
Blaise J. Arena - Des Plaines IL

UOP Inc. - Des Plaines IL

C11C 312
C11C 100

260409

Substantial improvement in the selectivity of reduction of fatty materials may be obtained using as a catalyst a zerovalent Group VIII metal dispersed in an eggshell distribution on a porous support. When the catalyst is nickel on gamma-alumina it is possible to perform continuous reduction using a fixed catalyst bed with selectivities which equal or exceed that exhibited by conventional nickel catalysts used in a batch process.

44091486, Oct 11, 1983

Dec 9, 1981

6/329356

Gail M. Qualeatti - Palatine IL
Dalia Germanas - Des Plaines IL

UOP Inc. - Des Plaines IL

C11C 312

260409

Unsaturated carboxylic acids may be reduced to the corresponding alcohols and esters while maintaining some degree of unsaturation in the carbon atom chain of the molecule by treating said acids with hydrogen in the presence of a catalyst system comprising rhenium composited on a solid support such as alumina and a phosphorous-containing compound as a modifier. The catalyst which is employed at reaction condition, including a temperature in the range of from about 100. degree. to about 500. degree. C. and a pressure in the range of from about 100 to about 5000 psi, may be exemplified by rhenium composited on gamma-alumina and hypophosphorous acid.

43382215, Jul 6, 1982

Feb 11, 1981

6/233416

Gail M. Qualeatti - Palatine IL

UOP Inc. - Des Plaines IL

B01J 2306
B01J 2336
B01J 2360
B01J 2364

252455R

Unsaturated carboxylic acids may be subjected to a reduction process in which the resulting product retains the unsaturation of the starting acids by effecting the reaction in the presence of a catalyst comprising cadmium and rhenium composited on a solid support such as alumina. If so desired, the catalyst composite may also contain a noble metal of Group VIII of the Periodic Table.

45242259, Jun 18, 1985

Dec 14, 1983

6/561491

Gail M. Qualeatti - Palatine IL
Bruce I. Rosen - Skokie IL
Blaise J. Arena - Des Plaines IL
Dalia Germanas - Des Plaines IL

UOP Inc. - Des Plaines IL

C07C 2704

568885

Several materials, suitable as carriers or supports for zerovalent metals dispersed thereon have been found to be appreciably more corrosion resistant in the environment of organic acids than are conventional supports, among which are included alpha-alumina, theta-alumina, titanated alumina, titania, and aluminum phosphate. The discovery of such corrosion resistant supports permits a continuous process for the hydrogenation of a fatty acid to its fatty alcohol using a fixed catalyst bed of a zerovalent metal dispersed on a carrier of this invention.

43405460, Jul 20, 1982

Mar 9, 1981

6/241870

Gail M. Qualeatti - Des Plaines IL
Dalia Germanas - Des Plaines IL

UOP Inc. - Des Plaines IL

C11C 312

260409

Unsaturated carboxylic acids, as exemplified by oleic acid, erucic acid, crotonic acid, etc. , may be subjected to a reduction reaction by treatment with hydrogen in the presence of a catalyst comprising cadmium and rhenium composited on a solid support such as alumina. The reduction reaction is effected at elevated temperatures and pressures, a specific feature of the reaction process being that hydrogen is continuously bled from the reactor during the reaction period. This feature results in obtaining a higher selectivity of esters and alcohols which retain the unsaturation of the original starting material.