| |
 |
|
Class Information
Number: 162/44
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 > Recirculation (includes separation from fibers) > With treatment of fluids during recirculation > Removal and/or separation of portion of recirculating fluid > With recombing
Description: Processes in which at least a part of the removed portion of fiber treating fluid is combined with the remainder of the recirculating fiber treating fluid before it is again brought into association with the fibrous mass.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7364640 |
Chemimechanical desilication of nonwood plant materials |
Apr. 29, 2008 |
| 7217338 |
Process for continuously cooking chemical cellulose pulp |
May. 15, 2007 |
| 6866748 |
Process for preparing polysulfides using clarified white liquor |
Mar. 15, 2005 |
| 6071380 |
Method of papermaking having zero liquid discharge |
Jun. 6, 2000 |
| RE36033 |
Process for the comminution of materials and plants for carrying out the process |
Jan. 12, 1999 |
| 5788813 |
Clarifying and/or filtering of green liquor and an apparatus therefore |
Aug. 4, 1998 |
| 5762758 |
Method of papermaking having zero liquid discharge |
Jun. 9, 1998 |
| 5360514 |
Treatment of bleach plant filtrations using a magnesium filter |
Nov. 1, 1994 |
| 5314583 |
Process for the comminution of materials and plant for carrying out the process |
May. 24, 1994 |
| 5213663 |
Method for controlling the sodium carbonate concentration of green liquor in the dissolving tank |
May. 25, 1993 |
| 5145556 |
Single-stage slaking and causticizing method |
Sep. 8, 1992 |
| 4853082 |
Process for the activation and delignification of cellulose pulp |
Aug. 1, 1989 |
| 4753737 |
Recovery method for settled black liquor |
Jun. 28, 1988 |
| 4681935 |
Procedure for recovering soluble carbohydrates contained in wood |
Jul. 21, 1987 |
| 4608121 |
Process for continuous digestion of finely-divided material with heat capacity flows of substantially the same magnitude |
Aug. 26, 1986 |
| 4537656 |
Method for delignifying or bleaching cellulose pulp wherein chlorine is added to recycle liquor to regenerate chlorine dioxide |
Aug. 27, 1985 |
| 4242177 |
Method for oxidizing malodorous sulfur compounds in kraft cooking liquor |
Dec. 30, 1980 |
| 4177105 |
Apparatus for delignifying and bleaching cellulose pulp |
Dec. 4, 1979 |
| 4141787 |
Process for preparing chemical cellulose according to the sulfite process by increasing the total SO.sub.2 content of cooking acid with liquid SO.sub.2 and digesting wood chips |
Feb. 27, 1979 |
| 3964962 |
Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit |
Jun. 22, 1976 |
|
|
|
