| |
 |
|
Class Information
Number: 162/32
Name: Paper making and fiber liberation > Processes of chemical liberation, recovery or purification of natural cellulose or fibrous material > With regeneration, reclamation, reuse, recycling or destruction of digestion fluid > With destruction of organic ingredient in or smelting of liquor > Liquor from digestion using organic compound or including element other than na, ca, mg, o, c, h or s
Description: Processes in which the original fiber liberation liquor contains an organic compound or an element other than sodium, calcium, magnesium, oxygen, carbon, hydrogen or sulfur.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7468176 |
Feeding device and process and feeding system which utilize the feeding device |
Dec. 23, 2008 |
| 7097738 |
Process for producing pulp |
Aug. 29, 2006 |
| 6923888 |
Process for recovering organic acids from bleaching liquors |
Aug. 2, 2005 |
| 6663749 |
Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with borate |
Dec. 16, 2003 |
| 6348128 |
Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition |
Feb. 19, 2002 |
| 6024833 |
Process for removing metals and recovering a chelating agent from a bleach plant waste liquor |
Feb. 15, 2000 |
| 5635027 |
Method of reducing the viscosity of a black liquor |
Jun. 3, 1997 |
| 4778813 |
Polymeric quaternary ammonium compounds, their preparation and use |
Oct. 18, 1988 |
| 4767500 |
Sulfite cooking method for the production of cellulose from materials containing lignocellulose with recovery of the cooking chemicals |
Aug. 30, 1988 |
| 4735683 |
Process for preparation of potassium salts from pulp of lignocellulosic materials |
Apr. 5, 1988 |
| 4597830 |
Method and pulping composition for the selective delignification of lignocellulosic materials with an aqueous amine-alcohol mixture in the presence of a catalyst |
Jul. 1, 1986 |
| 4504356 |
Continuous process of removing silica from spent pulping liquors |
Mar. 12, 1985 |
| 4486394 |
Alkali regeneration process |
Dec. 4, 1984 |
| 4248662 |
Oxygen pulping with recycled liquor |
Feb. 3, 1981 |
| 4116759 |
Preparation of liquor for delignification or alkali treatment by autocaustization, and the preparation of pulp with this liquor |
Sep. 26, 1978 |
| 4070233 |
Process of the pulping of bleaching of vegetable material |
Jan. 24, 1978 |
|
|
|
