Larry E Mahlum

US Patent:

6759542, Jul 6, 2004

Filed:

Nov 4, 2002

Appl. No.:

10/287058

Inventors:

Larry Mahlum - Volga SD

Assignee:

South Dakota Soybean Processors - Volga SD

International Classification:

C11B 316

US Classification:

554183, 554175, 554181

Abstract:

A method for partially refining a crude vegetable oil utilizing physical refining techniques is described. The crude vegetable oil is first degummed by either (1) allowing the crude oil to settle over a period of time, such as twenty days, so that the oil becomes stratified into at least two layers, wherein one layer comprises gums with low oil content and a second layer comprises oil containing only a fraction of the gums originally present and then separating the oil layer from the gum layer, or (2) heating the crude oil to a temperature of about 270-300Â F. with agitation and then allowing the crude oil to settle for a period of time until the oil becomes stratified into the at least two layers. The degummed oil is then aerated and agitated while being maintained at a temperature of 170-180Â F. for a time period sufficient to obtain a desired oil viscosity.

US Patent:

7262311, Aug 28, 2007

Filed:

Apr 29, 2004

Appl. No.:

10/835367

Inventors:

Rodney Christianson - Brookings SD, US
Michael Noble - Brookings SD, US
Andrew Rourke - Lafayette IN, US
Eric Geiger - Brookings SD, US
Larry Mahlum - Volga SD, US

Assignee:

South Dakota Soybean Processors - Volga SD

International Classification:

C11B 7/00
C11B 3/00

US Classification:

554183, 554175, 554181

Abstract:

A method for partially refining a crude vegetable oil utilizing physical refining techniques is described. The crude vegetable oil is first degummed by either (1) allowing the crude oil to settle over a period of time, such as twenty days, so that the oil becomes stratified into at least two layers, wherein one layer comprises gums with low oil content and a second layer comprises oil containing only a fraction of the gums originally present and then separating the oil layer from the gum layer, or (2) heating the crude oil to a temperature of about 270-300 F. with agitation and then allowing the crude oil to settle for a period of time until the oil becomes stratified into the at least two layers. The degummed oil is then aerated and agitated while being maintained at a temperature of 170-180 F. for a time period sufficient to obtain a desired oil viscosity.

US Patent:

20010056196, Dec 27, 2001

Filed:

Feb 21, 2001

Appl. No.:

09/790127

Inventors:

Larry Mahlum - Volga SD, US

International Classification:

C11B001/00
A23D009/00

US Classification:

554/211000, 426/417000, 426/330600, 426/487000, 554/175000

Abstract:

A method for partially refining a crude vegetable oil utilizing physical refining techniques is described. The crude vegetable oil is first degummed by either (1) allowing the crude oil to settle over a period of time, such as twenty days, so that the oil becomes stratified into at least two layers, wherein one layer comprises gums with low oil content and a second layer comprises oil containing only a fraction of the gums originally present and then separating the oil layer from the gum layer, or (2) heating the crude oil to a temperature of about 270-300 F. with agitation and then allowing the crude oil to settle for a period of time until the oil becomes stratified into the at least two layers. The degummed oil is then aerated and agitated while being maintained at a temperature of 170-180 F. for a time period sufficient to obtain a desired oil viscosity. The resulting partially refined oil is suitable for use in industrial applications such as the preparation of urethane foams.