THOMAS OWEN SULLIVAN
Pilots at Edgehill Rd, Cleveland, OH

5134108, Jul 28, 1992

May 22, 1991

7/703923

Deepak S. Thakur - Solon OH
Eugene Palka - Parma OH
Thomas J. Sullivan - Strongsville OH
Eugene Nebesh - Parma OH
Brian D. Roberts - Cleveland Heights OH

Engelhard Corporation - Edison NJ

B01J 3703, B01J 2322, B01J 2306, B01J 2324

502318

This hydrogenation catalyst comprises a major amount of the oxides of a first metal selected from copper or zinc, a second metal selected from chromium, molybdenum, tungsten and vanadium, and optionally, a minor amount of the oxide of a promoter metal selected from the group consisting of manganese, barium, zinc, nickel, cobalt, cadmium, iron and any combination thereof provided that the promotor metal is not zinc if the first metal is zinc. The average particle diameter of the powder is from about 6 to about 20 microns; and the particle surface area is from about 20 to about 70 m. sup. 2 /g. The process for preparing this catalyst comprises the steps of (A) simultaneously and adding to a first vessel, (1) a first aqueous solution comprising a copper or zinc salt; (2) a second aqueous solution comprising a soluble base, provided that either the copper solution or the soluble base solution also contains a soluble salt of at least one second metal; or (3) a third aqueous solution comprising a soluble salt of at least one seocnd metal is added simultaneously to the first vessel whereby an aqueous slurry of insoluble solid is formed in the first vessel, provided further that the second metal is chromium, molybdenum, tungsten, or vanadium; (B) advancing at least a portion of the aqueous slurry from the first vessel to a second vessel; (C) recovering the solids from the aqueous slurry in the second vessel; and (D) calcining the recovered solids.

5155086, Oct 13, 1992

Apr 2, 1991

7/680100

Deepak S. Thakur - Solon OH
Brian D. Roberts - Solon OH
Thomas J. Sullivan - Strongsville OH
Anita L. Vichek - Mentor OH

Engelhard Corporation - Iselin NJ

B01J 2104, B01J 2372

502342

In one embodiment, the invention relates to a catalyst in powdered form which comprises a major amount of the oxides of copper and zinc, and a minor amount of aluminum oxide wherein the pore volume of pores of said catalysts having a diameter between about 120 and about 1000. ANG. is at least about 40% of the total pore volume. In another embodiment, the invention relates to a process for preparing hydrogenation catalysts comprising the oxides of copper, zinc and aluminum which comprises the steps of (A) preparing a first aqueous solution containing at least one water-soluble copper salt and at least one water-soluble zinc salt; (B) preparing a second solution containing at least one water-soluble basic aluminum salt and at least one alkaline precipitating agent; (C) mixing the first and second solutions whereby an insoluble solid is formed; (D) recovering the insoluble solid. The invention also relates to a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters with catalysts of the type described. Catalysts of the invention are useful in both fixed bed and slurry phase hydrogenation reactions.

5080718, Jan 14, 1992

Feb 23, 1989

7/315406

Thomas J. Sullivan - Strongsville OH
Deepak S. Thakur - Solon OH
Brian D. Roberts - Solon OH
Mark E. Gall - Cleveland Hts. OH
Eugene Palka - Parma OH

Engelhard Corporation - Edison NJ

C09C 100, C09C 122, C09C 134

106453

A pigment of irregular-shaped particles is described which comprises crystallites of the empirical formula A. sub. x B. sub. y C. sub. z wherein A and B are different; A is cobalt, nickel, copper, zinc, cadmium, iron, manganese or any combination thereof; B is aluminum, chromium, molybdenum, iron, vanadium, manganese or any combination thereof; C is oxygen, selenium, tellurium or sulfur; x is 1, 2 or 3; y is 2 or 3; and z is greater than 3; the crystallites have an average size of from about 75 to about 600 Angstroms; and the surface area of the pigment particles is greater than zero up to about 20 m. sup. 2 /g. In one embodiment, when the pigment contains a mixture of copper oxide, iron oxide, manganese oxide and no chromium, the pigment contains no more than 10% of manganese, and when the pigment contains copper oxide, chromium oxide, and manganese oxide, the pigment contains up to about 5% of manganese oxide, the mole ratio of chromium to copper is no greater than about 1. 3 to 1.

6054627, Apr 25, 2000

May 27, 1992

7/889557

Deepak S. Thakur - Solon OH
Eugene Palka - Parma OH
Thomas I. Sullivan - Strongsville OH
Eugene Nebesh - Parma OH
Brian D. Roberts - Cleveland Hts. OH

Engelhard Corporation - Iselin NJ

C07C 3700

568799

Disclosed are catalysts in powdered form comprising a major amount of the oxides of a first metal selected from copper or zinc, a second metal selected from chromium, molybdenum, tungsten and vanadium, and optionally, a minor amount of the oxide of a promoter metal selected from the group consisting of manganese, barium, zinc, nickel, cobalt, cadmium, iron and any combination thereof provided that the promoter metal is not zinc if the first metal is zinc, wherein the average particle diameter of the powder is from about 6 to about 20 microns; and the particle surface area is from about 20 to about 70 m. sup. 2 /g. Also disclosed is a process for preparing such catalysts and a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters with catalysts of the type described.

5345005, Sep 6, 1994

Sep 18, 1992

7/930123

Deepak S. Thakur - Solon OH
Brian L. Roberts - Solon OH
Thomas J. Sullivan - Strongsville OH
Anita L. Vichek - Mentor OH

Engelhard Corporation - Iselin NJ

C07C 29149, C07C 31125

568885

In one embodiment, the invention relates to a catalyst in powdered form which comprises a major amount of the oxides of copper and zinc, and a minor amount of aluminum oxide wherein the pore volume of pores of said catalysts having a diameter between about 120 and about 1000. ANG. is at least about 40% of the total pore volume. In another embodiment, the invention relates to a process for preparing hydrogenation catalysts comprising the oxides of copper, zinc and aluminum which comprises the steps of (A) preparing a first aqueous solution containing at least one water-soluble copper salt and at least one water-soluble zinc salt; (B) preparing a second solution containing at least one water-soluble basic aluminum salt and at least one alkaline precipitating agent; (C) mixing the first and second solutions whereby an insoluble solid is formed; (D) recovering the insoluble solid. The invention also relates to a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters with catalysts of the type described. Catalysts of the invention are useful in both fixed bed and slurry phase hydrogenation reactions.

5243095, Sep 7, 1993

Apr 24, 1992

7/874259

Brian D. Roberts - Cleveland Hgts. OH
Deepak S. Thakur - Solon OH
Thomas J. Sullivan - Strongsville OH
Robert A. Plundo - Hudson OH

Engelhard Corporation - Iselin NJ

C07C 29147, C07C 29132

568864

In one embodiment, the invention relates to a catalyst in powdered form comprising the oxides of copper, iron, aluminum and manganese wherein the atomic ratio of copper to iron is at least 1:1. In another embodiment, the invention relates to a process for preparing such hydrogenation catalysts which comprises the steps of (A) preparing a first aqueous solution containing at least one water-soluble copper salt, at least one water-soluble iron salt, and at least one water-soluble manganese salt; (B) preparing a second solution containing at least one water-soluble basic aluminum salt and at least one alkaline precipitating agent; (C) mixing the first and second solutions wherein an insoluble solid is formed; (D) recovering the soluble solid; and (E) calcining the recovered solid to form the desired catalyst. The invention also relates to a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters.