| Patent Number |
Title Of Patent |
Date Issued |
| 6589492 |
Process for recovering catalyst components from a mother liquor of liquid phase oxidation |
July 8, 2003 |
| 6582554 |
Continuous digester having a sectioned top separator with multiple liquor extraction ports |
June 24, 2003 |
| 6578529 |
Arrangement for feeding black liquor into a recovery boiler |
June 17, 2003 |
| 6555038 |
Method for producing aqueous liquor dyeable modified polypropylene threads and the use thereof |
April 29, 2003 |
| 6540871 |
Method for processing black liquor sediment |
April 1, 2003 |
| 6506294 |
Process for regeneration of electrolytes from pickle liquor, in particular of NA2S04 from pickle... |
January 14, 2003 |
| 6507397 |
Automatic color-tone test device and automatic controlling system for dye liquor |
January 14, 2003 |
| 6500301 |
Apparatus for gasification of spent liquor |
December 31, 2002 |
| 6478235 |
Device for the cleaning of a liquor spray nozzle assembly of a soda recovery boiler |
November 12, 2002 |
| 6468429 |
Apparatus and method for controlling liquor circulation flow in long vertical shaft bioreactors |
October 22, 2002 |
| 6464827 |
Method of digesting wood with an alkaline liquor by adding an acidic agent to precipitate dissoc... |
October 15, 2002 |
| 6462210 |
Fractionation process for the unsaponifiable material derived from black-liquor soaps |
October 8, 2002 |
| 6425976 |
Method for black liquor gasification in recovery boilers |
July 30, 2002 |
| 6408771 |
Methods of improving productivity of black liquor recovery boilers |
June 25, 2002 |
| 6382455 |
Liquor vessel available for hanging goblets |
May 7, 2002 |
| 6379558 |
Process for treating development waste liquor |
April 30, 2002 |
| 6361960 |
Method and test kit for measuring concentration of a cleaning agent in a wash liquor |
March 26, 2002 |
| 6350348 |
Batch cooking with black liquor pretreatment |
February 26, 2002 |
| 6348128 |
Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition |
February 19, 2002 |
| 6332559 |
Liquor dispensing apparatus |
December 25, 2001 |
| 6306252 |
Heat recovery from spent digester cooking liquor |
October 23, 2001 |
| 6297353 |
Process for obtaining unsaponifiable compounds from black-liquor soaps, tall oil and their by-pr... |
October 2, 2001 |
| 6293973 |
Method of controlling oxalate precipitation in bayer process liquor |
September 25, 2001 |
| 6270665 |
Aeration tank of organic waste liquor and aeration apparatus using the tank |
August 7, 2001 |
| 6270815 |
Fermentation process for preparing erythritol using mother liquor produced from purification pro... |
August 7, 2001 |
| 6235151 |
Inhibiting scaling in alkaline waste liquor evaporators |
May 22, 2001 |
| 6228214 |
Method for black liquor gasification in recovery boilers |
May 8, 2001 |
| 6183598 |
Process for recovering alkali and black liquor containing silicatae |
February 6, 2001 |
| 6174161 |
Method and apparatus for partial oxidation of black liquor, liquid fuels and slurries |
January 16, 2001 |
| 6168685 |
Process FOR oxidation of concentrated black liquor |
January 2, 2001 |
| 6165316 |
Method and plant for separating soap from black liquor using a pressure screen |
December 26, 2000 |
| 6155210 |
Process for obtaining flue gases with low content of NO.sub.x while combusting black liquor and ... |
December 5, 2000 |
| 6153107 |
Process for treating development waste liquor |
November 28, 2000 |
| 6139689 |
Apparatus for digesting pulp in a displacement batch digester that uses displacement liquor havi... |
October 31, 2000 |
| 6132555 |
Method and arrangement for increasing evaporation capacity of a multi-stage evaporator of spent ... |
October 17, 2000 |
| 6132556 |
Method of controlling pulp digester pressure via liquor extraction |
October 17, 2000 |
| 6123808 |
Distribution of dilution liquor to the discharge of a cellulose pulp digester |
September 26, 2000 |
| D431146 |
Liquor treating apparatus |
September 26, 2000 |
| 6113739 |
Process for washing gas formed by gasifying black liquor |
September 5, 2000 |
| 6110323 |
Methods of refining agricultural residues to absorbent cellulose, xylose, and plant nutrient liq... |
August 29, 2000 |
| 6103057 |
Kraft digesting process wherein a vapor interface is formed by withdrawing hot cooking liquor |
August 15, 2000 |
| 6090240 |
Method of inhibiting scaling in black liquor evaporators |
July 18, 2000 |
| D427908 |
Liquor bottle |
July 11, 2000 |
| 6071377 |
Process for obtaining flue gases with low content of NO.sub.x in a black liquor recovery boiler |
June 6, 2000 |
| 6063238 |
Black liquor impregnation in digester |
May 16, 2000 |
| 6039782 |
Preparing organic powder by anaerobically treating fermentation waste fluid and aerobically trea... |
March 21, 2000 |
| 6036817 |
Composition containing a polymethylalkyl siloxane for enhancing white liquor penetration into wo... |
March 14, 2000 |
| 6030113 |
Mixing apparatus and method for mixing black liquor from cellulose production with ash from flue... |
February 29, 2000 |
| 6030492 |
Impregnation of cellulose-containing material with black liquor in a single vessel digester |
February 29, 2000 |
| 6030493 |
Process for recovering chemicals and energy from cellulose spent liquor using multiple gasifiers |
February 29, 2000 |
