| Patent Number |
Title Of Patent |
Date Issued |
| 4994613 |
Process for preparing 4-hydroxyacetophenone oxime with mother liquor recycle |
February 19, 1991 |
| 4988407 |
Process and apparatus for producing dry black liquor solids |
January 29, 1991 |
| 4985118 |
Method for treating photographic process waste liquor through concentration by evaporation |
January 15, 1991 |
| 4981556 |
Process for the preparation of sulfide-free alkali liquor using copperoxide |
January 1, 1991 |
| 4980282 |
Treatment of corn steep liquor |
December 25, 1990 |
| 4977761 |
Liquor applying nozzle for a textile dyeing machine |
December 18, 1990 |
| 4968353 |
Method for refining sugar liquor |
November 6, 1990 |
| 4961752 |
Sequential oxidative and reductive bleaching in a multicomponent single liquor system |
October 9, 1990 |
| 4959122 |
Apparatus for treating photographic process waste liquor |
September 25, 1990 |
| 4954262 |
Method and apparatus for recovering sulfuric acid from a titanium sulfate waste liquor |
September 4, 1990 |
| 4952276 |
Method for measuring the bleaching content of pulp bleaching liquor using a chemiluminescent rea... |
August 28, 1990 |
| 4944839 |
Interstage liquor heater for plate type falling film evaporators |
July 31, 1990 |
| 4944840 |
Method and apparatus for evaporating waste liquor produced when cooking fibrous material contain... |
July 31, 1990 |
| 4941945 |
Method for clarifying green liquor |
July 17, 1990 |
| 4929307 |
Method of decreasing black liquor viscosity |
May 29, 1990 |
| 4929355 |
Method and apparatus for the separation of caustic liquor, lime sludge and sludge in a causticiz... |
May 29, 1990 |
| 4921613 |
Method for purifying resin-containing waste liquor in the manufacture of cellulose pulps |
May 1, 1990 |
| 4911787 |
Method for concentrating black liquor with oxidizing followed by CO.sub.2 addition |
March 27, 1990 |
| 4897157 |
Make-up liquor and black liquor evaporating processing during pulp production |
January 30, 1990 |
| 4893485 |
Apparatus for the continuous application of treating liquor on an absorptive, compressible mater... |
January 16, 1990 |
| 4892209 |
Liquor bottle capping assembly |
January 9, 1990 |
| 4891047 |
Process for dyeing fibers with a dye liquor containing granules of silica gel |
January 2, 1990 |
| 4882010 |
Method for burning evaporated waste liquor |
November 21, 1989 |
| 4872950 |
Process for recovering energy and chemicals from spent liquor in pulp preparation |
October 10, 1989 |
| 4865825 |
Process for the decomposition of sodium aluminate liquor for the production of alumina |
September 12, 1989 |
| 4862545 |
Method for the removal of fabric samples from HT jet dyeing machines without loss of liquor |
September 5, 1989 |
| 4863483 |
Textile printing and dyeing: Dye liquor or print paste containing water insoluble hexa-methoxy-m... |
September 5, 1989 |
| 4861446 |
Treatment of gas liquor |
August 29, 1989 |
| 4859485 |
Animal feed supplement prepared from wet corn bran and corn steep liquor |
August 22, 1989 |
| 4857146 |
Process for increasing the solids content of black liquor at its recovery in a sulfate pulping p... |
August 15, 1989 |
| 4857282 |
Combustion of black liquor |
August 15, 1989 |
| 4855123 |
Method of oxidizing sulfide-containing liquor |
August 8, 1989 |
| 4845791 |
Process and apparatus for the continuous application of treating liquor on an absorptive, compre... |
July 11, 1989 |
| 4821930 |
Bottle mounted adjustable liquor dispensing device |
April 18, 1989 |
| 4818499 |
Apparatus for the decomposition of sodium aluminate liquor for the production of alumina |
April 4, 1989 |
| 4790939 |
Method of improving SVI of mixed liquor in aeration tank |
December 13, 1988 |
| 4788811 |
Process and apparatus for assembling and liquor-charging of packages of paper and the like |
December 6, 1988 |
| 4789428 |
Method for evaporation of spent liquor |
December 6, 1988 |
| 4786365 |
Process of making cellulose pulp with a sulphite cooking liquor containing sulphide and a quinon... |
November 22, 1988 |
| 4776889 |
Waxes as a black liquor viscosity modifier |
October 11, 1988 |
| 4773912 |
Process for increasing the performance of pleated silk or wool by treatment with keratolytic liq... |
September 27, 1988 |
| 4773918 |
Black liquor gasification process |
September 27, 1988 |
| 4769180 |
Process for separately recovering uranium and hydrofluoric acid from waste liquor containing ura... |
September 6, 1988 |
| 4767016 |
Liquor bottle capping assembly |
August 30, 1988 |
| 4764251 |
Method for the impregnation and cooking of lignocellulosic material by a batch cooking using spe... |
August 16, 1988 |
| 4764252 |
Process for pulping lignocellulosic material with a preoxidized alkaline sulfide pulping liquor ... |
August 16, 1988 |
| 4764254 |
Falling film liquor heater having a screen to prevent clogging of a liquid distributing tray |
August 16, 1988 |
| 4756837 |
Wet, pressure, partial oxidation of black liquor |
July 12, 1988 |
| 4755258 |
Method and apparatus for deactivating spent liquor |
July 5, 1988 |
| 4753737 |
Recovery method for settled black liquor |
June 28, 1988 |
