Andrew B Robbins

US Patent:

6414111, Jul 2, 2002

Filed:

Feb 14, 2001

Appl. No.:

09/782869

Inventors:

Derk T. A. Huibers - Pennington NJ
Andrew M. Robbins - Trenton NJ
David H. Sullivan - Morrisville PA

Assignee:

Arizona Chemical Company - Jacksonville FL

International Classification:

C09F 100

US Classification:

530205, 530207, 530208

Abstract:

A method is set forth for separating a sterol or sterol ester from crude tall oil comprising fractionating the crude tall oil into a residue fraction and a volatile fraction, wherein the temperature of the residue fraction does not exceed about 290Â C. , and wherein the residue fraction includes the sterol or sterol ester. By application of this method, which can be implemented in existing fractionating equipment or in specially designed pitch collecting apparatuses disclosed herein, the yield of sterols can exceed 50% with respect to the sterols present in crude tall oil. A method is also provided for separating unsaponifiable material from a tall oil stream comprising saponifying the stream with a mixture of sodium hydroxide and potassium hydroxide to form sodium and potassium salts of fatty acids, rosin acids, or both; evaporating the unsaponifiable material; and acidulating the unevaporated sodium and potassium salts.

US Patent:

52833194, Feb 1, 1994

Filed:

Jun 23, 1993

Appl. No.:

8/082339

Inventors:

Derk T. A. Huibers - Pennington NJ
Richard G. Grotyohann - Belle Mead NJ
Andrew M. Robbins - Trenton NJ

Assignee:

Union Camp Corporation - Princeton NJ

International Classification:

C09F 100

US Classification:

530209

Abstract:

The present invention provides for the efficient recycling of carbon dioxide used in high pressure tall oil soap acidulation processes. The excess carbon dioxide used in the high pressure tall oil soap acidulation processes is recycled and contacted with an aqueous tall oil soap solution at a point before the high pressure contacting stage. Preferably, the recycled carbon dioxide is contacted in a first reactor, under pressure, to provide a preliminary tall oil mixture having an extent of acidification beyond the presence of a gel phase. Methods are provided for the monitoring of the acidulation reaction in the first reactor to maintain the extent of acidification beyond the gel phase region.

US Patent:

6107456, Aug 22, 2000

Filed:

Sep 15, 1998

Appl. No.:

9/153728

Inventors:

Derk T. A. Huibers - Pennington NJ
Andrew M. Robbins - Trenton NJ
David H. Sullivan - Morrisville PA

Assignee:

Arizona Chemical Corporation - Jacksonville FL

International Classification:

C09F 700
C11D 1500

US Classification:

530205

Abstract:

A method is set forth for separating a sterol or sterol ester from crude tall oil comprising fractionating the crude tall oil into a residue fraction and a volatile fraction, wherein the temperature of the residue fraction does not exceed about 290. degree. C. , and wherein the residue fraction includes the sterol or sterol ester. By application of this method, which can be implemented in existing fractionating equipment or in specially designed pitch collecting apparatuses disclosed herein, the yield of sterols can exceed 50% with respect to the sterols present in crude tall oil. A method is also provided for separating unsaponifiable material from a tall oil stream comprising saponifying the stream with a mixture of sodium hydroxide and potassium hydroxide to form sodium and potassium salts of fatty acid, rosin acids, or both; evaporating the unsaponifiable material; and acidulating the unevaporated sodium and potassium salts.

US Patent:

52868451, Feb 15, 1994

Filed:

May 20, 1992

Appl. No.:

7/886654

Inventors:

Derk T. A. Huibers - Pennington NJ
James W. Gillis - Yardley PA
Andrew Robbins - Trenton NJ

Assignee:

Union Camp Corporation - Wayne NJ

International Classification:

B01D 1706

US Classification:

530208

Abstract:

The present invention relates to the conversion of tall oil soap to produce crude tall oil. An aqueous tall oil soap solution generated in a kraft wood-pulping process is placed in contact with carbon dioxide, under pressure, to form crude tall oil and sodium bicarbonate brine. The crude tall oil and sodium bicarbonate brine are then allowed to separate, under pressure, into a crude tall oil layer and a sodium bicarbonate brine layer. The crude tall oil layer is then separated from the sodium bicarbonate brine layer, again under pressure. The separated crude tall oil may then be further refined to yield fatty acids, resin acids, and other constituents, which are useful in numerous industrial applications, such as in soaps, lubricants, inks, adhesives, and coatings.