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Class Information
Number: 530/208
Name: Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof > Natural resins or derivatives (e.g., wood or pine tar; cativo resin derivatives, etc.) > Recovery of tall oil or derivatives from papermaking waste, purification of tall oil, or separation of components of tall oil; or product thereof (e.g., separation of rosin, fatty acids, sterols, etc.; decolorizing, etc.) > Inorganic material used in the process, or product thereof (e.g., using sulfuric acid, boric acid, etc.)
Description: Process wherein there is utilized an inorganic material, or products of such processes.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7084238 |
Brine separation in tall soap oil preparation |
Aug. 1, 2006 |
| 6780831 |
Process for separating unsaponifiable valuable substances from sulphate soap based materials |
Aug. 24, 2004 |
| 6420533 |
Method to separate sodium from lignins and produce a sodium containing solution for recycle |
Jul. 16, 2002 |
| 6414111 |
Method for separating sterols from tall oil |
Jul. 2, 2002 |
| 6348566 |
Method for preparing tall oil |
Feb. 19, 2002 |
| 6172183 |
Process and apparatus for the cleaning of crude tall oil soap |
Jan. 9, 2001 |
| 6107456 |
Method for separating sterols from tall oil |
Aug. 22, 2000 |
| 5898065 |
Neutralization of tall oil soap |
Apr. 27, 1999 |
| 5891990 |
Treatment of tall oil soap |
Apr. 6, 1999 |
| 5286845 |
Acidification of tall oil soap using carbon dioxide |
Feb. 15, 1994 |
| 5132399 |
Color of tall oil fractions by treating soap skimmings |
Jul. 21, 1992 |
| 5118666 |
Insulinotropic hormone |
Jun. 2, 1992 |
| 5097012 |
Solvent extraction of fatty acid stream with liquid water and elevated temperatures and pressures |
Mar. 17, 1992 |
| 5034509 |
Method for improving the color and the stability of the color of carboxylic acid or a mixture of the same |
Jul. 23, 1991 |
| 4977243 |
Separation of sterols from low-acid feeds with magnesium silicate and methyl-tert-butyl ether desorbent |
Dec. 11, 1990 |
| 4524024 |
Processes of recovering fatty acids and sterols from tall oil pitch |
Jun. 18, 1985 |
| 4522761 |
Process for separating fatty acids from rosin acids |
Jun. 11, 1985 |
| 4519952 |
Process for separating fatty acids from unsaponifiables |
May. 28, 1985 |
| 4511514 |
Process for separating oleic acid from linoleic acid |
Apr. 16, 1985 |
| 4495106 |
Adsorbent and process for separating fatty acids from rosin acids |
Jan. 22, 1985 |
| 4483791 |
Recovery of fatty acids from tall oil heads |
Nov. 20, 1984 |
| 4422966 |
Separation of neutrals from tall oil soaps |
Dec. 27, 1983 |
| 4404145 |
Process for separating fatty acids from rosin acids |
Sep. 13, 1983 |
| 4256628 |
Sulfur-free acidulation of tall oil soap |
Mar. 17, 1981 |
| 4248769 |
Method for washing of crude tall oil soap from the sulfate pulping process |
Feb. 3, 1981 |
| 4154725 |
Method of recovering tall oil from acidulation of raw tall oil soap |
May. 15, 1979 |
| 4076700 |
Process for recovering high purity fatty acids and/or rosin acid and sterols |
Feb. 28, 1978 |
| 4064117 |
Recovery of fatty acids from tall oil heads |
Dec. 20, 1977 |
| 4049685 |
Process for cleansing spent clay |
Sep. 20, 1977 |
| 3965085 |
Method for refining of soaps using solvent extraction |
Jun. 22, 1976 |
| 3948874 |
Method for removing lignin from tall oil |
Apr. 6, 1976 |
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