Arthur G Austin

US Patent:

20040144735, Jul 29, 2004

Filed:

Aug 27, 2002

Appl. No.:

10/228382

Inventors:

Samuel Shepherd - Houston TX, US
Arthur Austin - Oviedo FL, US

International Classification:

C02F001/00

US Classification:

210/769000

Abstract:

A process for removing water from sludge including passing the sludge through a chamber, injecting carbon dioxide gas under pressure into the chamber as the sludge passes through the chamber, and flashing the carbon dioxide-injected sludge through an orifice into a vessel so as to release carbon dioxide gas from the sludge. The flashed sludge is dewatered to remove water from the sludge. The carbon dioxide gas is injected at no less than 25 p.s.i.g. of pressure.

US Patent:

20050109713, May 26, 2005

Filed:

Nov 30, 2004

Appl. No.:

10/999331

Inventors:

Samuel Shepherd - Houston TX, US
Arthur Austin - Oviedo FL, US

International Classification:

C02F011/12

US Classification:

210769000

Abstract:

A process for removing water from sludge has the steps of passing the sludge through a chamber, injecting carbon dioxide gas under pressure into the chamber as the sludge passes through the chamber, and flashing the carbon dioxide-injected sludge through an orifice into a vessel so as to release carbon dioxide gas from the sludge. The flashed sludge is returned to a digester or is dewatered to remove water from the sludge. The carbon dioxide gas is injected at no less than 14.7 p.s.i.a. of pressure.

US Patent:

41773357, Dec 4, 1979

Filed:

Apr 14, 1978

Appl. No.:

5/896496

Inventors:

Arthur L. Austin - Southgate MI
William W. Levis - Wyandotte MI
Louis C. Pizzini - Trenton MI
Robert J. Hartman - Southgate MI

Assignee:

BASF Wyandotte Corporation - Wyandotte MI

International Classification:

C08G 1814

US Classification:

521171

Abstract:

An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst complex of a phenol and an iron or aluminum substance. The mixture can also include a neutral phosphorus compound and/or acid anhydrides to enhance flame retardant properties. Optionally, also, the oxyalkylation reaction can be terminated by adding a tri (lower alkyl) amine and alkylene oxide to react with residual phenolic hydrogen in the mixture.

US Patent:

39579220, May 18, 1976

Filed:

Dec 17, 1973

Appl. No.:

5/425524

Inventors:

Arthur L. Austin - Southgate MI
William W. Levis - Wyandotte MI
Louis C. Pizzini - Trenton MI
Robert J. Hartman - Southgate MI

Assignee:

BASF Wyandotte Corporation - Wyandotte MI

International Classification:

C07E 9145

US Classification:

260921

Abstract:

An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst complex of a phenol and an iron or aluminum substance. The mixture can also include a neutral phosphorus compound and/or acid anhydrides to enhance flame retardant properties. Optionally, also, the oxyalkylation reaction can be terminated by adding a tri (lower alkyl) amine and alkylene oxide to react with residual phenolic hydrogen in the mixture.

US Patent:

40973999, Jun 27, 1978

Filed:

Jun 25, 1975

Appl. No.:

5/590332

Inventors:

Arthur L. Austin - Southgate MI
William W. Levis - Wyandotte MI
Louis C. Pizzini - Trenton MI
Robert J. Hartman - Southgate MI

Assignee:

BASF Wyandotte Corporation - Wyandotte MI

International Classification:

C07F 9145
C08G 7104

US Classification:

252182

Abstract:

An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst complex of a phenol and an iron or aluminum substance. The mixture can also include a neutral phosphorus compound and/or acid anhydrides to enhance flame retardant properties. Optionally, also, the oxyalkylation reaction can be terminated by adding a tri (lower alkyl) amine and alkylene oxide to react with residual phenolic hydrogen in the mixture.

US Patent:

41873572, Feb 5, 1980

Filed:

Apr 13, 1978

Appl. No.:

5/895989

Inventors:

Arthur L. Austin - Southgate MI
William W. Levis - Wyandotte MI
Louis C. Pizzini - Trenton MI
Robert J. Hartman - Southgate MI

Assignee:

BASF Wyandotte Corporation - Wyandotte MI

International Classification:

C08G 1814

US Classification:

521159

Abstract:

An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst complex of a phenol and an iron or aluminum substance. The mixture can also include a neutral phosphorus compound and/or acid anhydrides to enhance flame retardant properties. Optionally, also, the oxyalkylation reaction can be terminated by adding a tri (lower alkyl) amine and alkylene oxide to react with residual phenolic hydrogen in the mixture.

US Patent:

44302479, Feb 7, 1984

Filed:

Sep 29, 1977

Appl. No.:

5/837935

Inventors:

Arthur L. Austin - Southgate MI
William W. Levis - Wyandotte MI
Louis C. Pizzini - Trenton MI
Robert J. Hartman - Southgate MI

Assignee:

BASF Wyandotte Corporation - Wyandotte MI

International Classification:

C09K 300

US Classification:

252182

Abstract:

An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst complex of a phenol and an iron or aluminum substance. The mixture can also include a neutral phosphorus compound and/or acid anhydrides to enhance flame retardant properties. Optionally, also, the oxyalkylation reaction can be terminated by adding a tri (lower alkyl) amine and alkylene oxide to react with residual phenolic hydrogen in the mixture.

US Patent:

41055977, Aug 8, 1978

Filed:

Aug 15, 1977

Appl. No.:

5/824279

Inventors:

Arthur L. Austin - Southgate MI
William W. Levis - Wyandotte MI
Louis C. Pizzini - Trenton MI
Robert J. Hartman - Southgate MI

Assignee:

BASF Wyandotte Corporation - Wyandotte MI

International Classification:

C08G 1814
C08G 1848
C08G 1850

US Classification:

521159

Abstract:

An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst complex of a phenol and an iron or aluminum substance. The mixture can also include a neutral phosphorus compound and/or acid anhydrides to enhance flame retardant properties. Optionally, also, the oxyalkylation reaction can be terminated by adding a tri (lower alkyl) amine and alkylene oxide to react with residual phenolic hydrogen in the mixture.