Harry E Buckholtz

US Patent:

6685904, Feb 3, 2004

Filed:

Apr 16, 1998

Appl. No.:

09/061754

Inventors:

Harry E. Buckholtz - Lewiston NY
Mohamed W. Hisham - Grand Island NY

Assignee:

Occicdental Chemical Corporation - Dallas TX

International Classification:

C01B 2510

US Classification:

423300, 423304

Abstract:

Disclosed is a process for producing phosphorous trichloride, phosphorous pentachloride, or phosphorous tribromide by reacting phosphine gas with chlorine gas or bromine gas, in a mixture with hydrogen gas. The phosphine is dried and the reaction is performed at a temperature up to about 250Â C. The phosphorous trichloride or phosphorous tribromide product can be reacted with oxygen to form phosphorous oxychloride or phosphorous oxybromide, respectively.

US Patent:

20070084804, Apr 19, 2007

Filed:

Oct 16, 2006

Appl. No.:

11/581715

Inventors:

Harry Buckholtz - Lewiston NY, US
Ronald Richardson - Carson City NV, US
Victor Sanchez - Kingwood TX, US

International Classification:

C02F 11/00

US Classification:

210764000, 210209000

Abstract:

A process for treating sewage sludge with percent solids less than 20 percent comprises (1) contacting sewage sludge that contains undesirable microorganisms with at least one compound that produces methyl isothiocyanate in water to form a reaction mixture, (2) mixing the reaction mixture, and (3) maintaining the reaction mixture in a closed vessel for at least about two hours. After the reaction mixture is maintained in a closed vessel for the desired time, the closed vessel can be vented to the atmosphere for a time sufficient to dissipate residual methyl isothiocyanate from the reaction mixture.

US Patent:

52330540, Aug 3, 1993

Filed:

Jun 26, 1991

Appl. No.:

7/721004

Inventors:

David Y. Tang - E. Amherst NY
Mary K. Cocoman - Grand Island NY
Harry E. Buckholtz - Lewiston NY

Assignee:

Occidental Chemical Corporation - Niagara Falls NY

International Classification:

C07D30789
C07C25500
C07C 4500

US Classification:

549246

Abstract:

Halophthalic anhydrides are prepared by the liquid phase reaction of a brominating agent with halogen substituted hexa- or tetra-hydrophthalic anhydrides.

US Patent:

53935039, Feb 28, 1995

Filed:

Sep 9, 1991

Appl. No.:

7/756748

Inventors:

Harry F. Buckholtz - Lewiston NY
Daniel J. Jaszka - Tonawanda NY

Assignee:

Occidental Chemical Corporation - Niagara Falls NY

International Classification:

C01G 3700
C01G 3714
C01B 701
C01B 1796

US Classification:

423 55

Abstract:

Disclosed is an improvement on a process in which sodium chromate is reacted with sulfuric acid to produce sodium bichromate and sodium sulfate, and the sodium bichromate is reacted with sulfuric acid to produce chromic acid and sodium bisulfate. In the improvement, the sodium sulfate and sodium bisulfate are reacted with hydrogen chloride to produce sulfuric acid, which is recycled, and sodium chloride.

US Patent:

40910318, May 23, 1978

Filed:

Nov 1, 1976

Appl. No.:

5/737320

Inventors:

Harry E. Buckholtz - Kenmore NY
Arun C. Bose - Tonawanda NY

Assignee:

Hooker Chemicals & Plastics Corp. - Niagara Falls NY

International Classification:

C07D33908

US Classification:

260327P

Abstract:

Thianthrene compounds are prepared by adding sulfur monochloride to an excess of a benzene compound in the presence of aluminum chloride, and reacting to form a thianthrene compound as an insoluble aluminum chloride complex; slurrying the complex in an inert organic liquid; treating the slurry with a Lewis base, such as ammonia to free the thianthrene compound from the complex.

US Patent:

50496824, Sep 17, 1991

Filed:

Sep 11, 1989

Appl. No.:

7/405606

Inventors:

David Y. Tang - Amherst NY
Mary K. Cocoman - Grand Island NY
Harry E. Buckholtz - Lewiston NY

Assignee:

Occidental Chemical Corporation - Dallas TX

International Classification:

C07D30774

US Classification:

549246

Abstract:

Halophthalic anhydrides are prepared by the liquid phase reaction of a brominating agent with halogen substituted hexa- or tetra-hydrophthalic anhydrides.

US Patent:

40241980, May 17, 1977

Filed:

Aug 1, 1975

Appl. No.:

5/601692

Inventors:

Harry E. Buckholtz - Kenmore NY
Arun C. Bose - Tonawanda NY

Assignee:

Hooker Chemicals & Plastics Corporation - Niagara Falls NY

International Classification:

C07C 2506
C07C 2508

US Classification:

260650R

Abstract:

In the process for the nuclear chlorination of alkylbenzenes, such as toluene, in the presence of a para-directing catalyst system comprising a substantially iron-free Lewis acid catalyst and thianthrene compound co-catalyst, wherein the reaction mixture is in contact with iron or an alloy thereof, the para-directing effect of the catalyst system is improved by the addition of an amide.

US Patent:

49976389, Mar 5, 1991

Filed:

Jun 11, 1990

Appl. No.:

7/535623

Inventors:

Harry E. Buckholtz - Lewiston NY

Assignee:

Occidental Chemical Corporation - Niagara Falls NY

International Classification:

C01B 1516
C01B 2526

US Classification:

423314

Abstract:

Disclosed is a method of making hexametaphosphates by reacting sodium tripolyphosphate, tetrasodium pyrophosphate, or trisodium phosphate with phosphoric acid, forming a molten glass of said mixture, and chilling said molten glass to form a solid.