Carl A Greco

US Patent:

55125263, Apr 30, 1996

Filed:

Jan 6, 1995

Appl. No.:

8/369605

Inventors:

Carl C. Greco - Garnerville NY

Assignee:

Akzo Nobel N.V. - Arnhem

International Classification:

B01J 2116

US Classification:

502 80

Abstract:

Metal ions can be removed from aqueous by being brought into contact with a heavy metal removal system which comprises an expanded organophilic clay (such as montmorillonite), a fatty alkyl-containing quaternary ammonium compound (such as a chloride comprising a fatty alkyl group containing from about twelve to about twenty-two carbon atoms), and a fatty alkyl-containing mercaptan (comprising a fatty alkyl group containing from about twelve to about twenty-two carbon atoms).

US Patent:

49888005, Jan 29, 1991

Filed:

May 31, 1988

Appl. No.:

7/200484

Inventors:

Carl C. Greco - Garnerville NY
Johst H. Burk - Mohegan Lake NY

Assignee:

Akzo America Inc. - New York NY

International Classification:

C07F 500

US Classification:

534 15

Abstract:

The reaction of rare earth metals and alcohols, to form rare earth alkoxides, is catalyzed by the use of an inorganic, halide-free mercury salt (e. g. , mercury nitrate or mercury sulfate).

US Patent:

50842013, Jan 28, 1992

Filed:

Feb 15, 1990

Appl. No.:

7/480705

Inventors:

Carl C. Greco - Garnerville NY

Assignee:

Akzo N.V. - Arnheim

International Classification:

C09K 300
C07F 108

US Classification:

25218212

Abstract:

More storage stable solutions comprising an organic solvent containing a soluble copper amino alkoxide are disclosed. The compound is of the formula ##STR1## where and R is lower alkyl such as methyl or ethyl.

US Patent:

52466850, Sep 21, 1993

Filed:

Aug 21, 1992

Appl. No.:

7/934041

Inventors:

Carl C. Greco - Garnerville NY
Thomas A. Gallo - Thornwood NY
Fawzy G. Sherif - Stony Point NY

Assignee:

Akzo N.V. - Arnhem

International Classification:

C01B 3134

US Classification:

423440

Abstract:

Carbides of Group VIB metals, such as tungsten and molybdenum, can be formed by the pyrolysis of a salicylate of such metal. The salicylate can be formed by reaction of a Group VIB metal halide with salicylic acid.

US Patent:

49963007, Feb 26, 1991

Filed:

May 31, 1988

Appl. No.:

7/200471

Inventors:

Carl C. Greco - Garnerville NY
Johst H. Burk - Mohegan Lake NY

Assignee:

Akzo America Inc. - New York NY

International Classification:

C07F 500

US Classification:

534 15

Abstract:

The reaction of rare earth metals and alcohols, to form rare earth alkoxides, is catalyzed by the use of a zinc-containing catalyst, e. g. , zinc and/or zinc chloride.

US Patent:

46705732, Jun 2, 1987

Filed:

Dec 17, 1984

Appl. No.:

6/682641

Inventors:

Carl C. Greco - Garnerville NY
Kelly B. Triplett - Stamford CT

Assignee:

Stauffer Chemical Company - Westport CT

International Classification:

C07F 506

US Classification:

556182

Abstract:

There are disclosed improved methods for preparing metal alkoxides from metals and alcohols. The methods involve dry-grinding the metal in an inert atmosphere prior to the addition of the alcohol. When an activator is used, it is usually ballmilled with the metal. Higher yields are obtained, particularly when the metal and alcohol are not very reactive absent an activator. Typical metals are those from Groups 2A, 2B, 3A, and 3B, particularly aluminum, magnesium, and yttrium. Typical alcohols are those which contain up to 16 carbon atoms, particularly those containing 4 or more carbon atoms.

US Patent:

43775594, Mar 22, 1983

Filed:

Aug 26, 1981

Appl. No.:

6/296109

Inventors:

Mark S. Carron - Spring Valley NY
Carl C. Greco - Garnerville NY
Lester P. VanBrocklin - Thiells NY
Francis A. Via - Yorktown Heights NY

Assignee:

Stauffer Chemical Company - Westport CT

International Classification:

C01B 2516

US Classification:

423317

Abstract:

The invention is a method of treating the distillation residue from the production of phosphorochloridothionates which comprises draining the residue into agitated cold water to form a slurry and contacting the slurry with chlorine gas in a hydrolyzing zone to decompose the residue and produce decomposition gases in controllable amounts having a decreased sulfur content. The novel method would reduce the amount of sulfur in the decomposition gas and make possible the use of less costly abatement facilities.

US Patent:

44890044, Dec 18, 1984

Filed:

Nov 8, 1982

Appl. No.:

6/439708

Inventors:

Carl C. Greco - Garnerville NY

Assignee:

Stauffer Chemical Company - Westport CT

International Classification:

C07F 900

US Classification:

260429R

Abstract:

Vanadium dialkyl phosphorodithioate compounds are formed by the reaction of dialkyl phosphorodithioate acid with a vanadium halide in the presence of a substance capable of removing by-product hydrogen halide from the reaction medium.