| Patent Number |
Title Of Patent |
Date Issued |
| 4746449 |
Deicing product obtained from pulp mill black liquor |
May 24, 1988 |
| 4736873 |
Self powered liquor metering pump |
April 12, 1988 |
| 4734103 |
Viscosity/drag reducing additive for high solids black liquor |
March 29, 1988 |
| 4731161 |
Semibleaching liquor for Kraft paper products |
March 15, 1988 |
| 4728393 |
Methods for obtaining deicers from black liquor |
March 1, 1988 |
| D294328 |
Liquor maker |
February 23, 1988 |
| 4725335 |
Process for producing nitrogen oxides from aqueous waste cellulose pulp liquor containing nitrog... |
February 16, 1988 |
| 4718978 |
Spent pulping liquor recovery process |
January 12, 1988 |
| 4719019 |
Treatment of thiocyanate containing waste liquor |
January 12, 1988 |
| 4719291 |
Phenolic compound-modified spent sulfite liquor and process for preparing same |
January 12, 1988 |
| 4713222 |
Iron removal from bayer process liquor |
December 15, 1987 |
| 4704259 |
Removal of chromium from cell liquor |
November 3, 1987 |
| 4694753 |
Continuous production of low density base grain with a salt-free liquor |
September 22, 1987 |
| 4692209 |
Recovery of chemicals from pulp waste liquor |
September 8, 1987 |
| 4690313 |
Bottle mounted adjustable liquor dispensing device |
September 1, 1987 |
| 4683841 |
Control of a black liquor recovery boiler |
August 4, 1987 |
| 4682985 |
Gasification of black liquor |
July 28, 1987 |
| 4678477 |
Process for lowering level of contaminants in Bayer liquor by membrane filtration |
July 7, 1987 |
| 4676912 |
Waste liquor disposal methods |
June 30, 1987 |
| 4676913 |
Coal liquor clarification with water-soluble, high molecular weight polymers having low concentr... |
June 30, 1987 |
| 4670098 |
Process for preparing cellulose pulp from lignocellulosic material while removing high molecular... |
June 2, 1987 |
| 4668342 |
Recausticizing kraft green liquor |
May 26, 1987 |
| 4663133 |
Removal of high molecular weight organic compounds from Bayer process caustic liquor |
May 5, 1987 |
| 4655056 |
Foamed treating liquor applicator |
April 7, 1987 |
| 4654046 |
Continuous process for dyeing cellulose/polyamide blends: thermobol pad liquor containing nonion... |
March 31, 1987 |
| 4637858 |
Pyrolysis of black liquor at high temperatures using radiant energy |
January 20, 1987 |
| 4631129 |
Production of pure sugars and lignosulfonates from sulfite spent liquor |
December 23, 1986 |
| 4628803 |
Autoclave for processing cocoa liquor |
December 16, 1986 |
| 4629469 |
Humectant composition derived from kraft black liquor |
December 16, 1986 |
| 4624742 |
Method of determining black liquor solids concentration remaining in a washed pulp mat |
November 25, 1986 |
| 4619732 |
Method for drying pulping liquor to a burnable solid |
October 28, 1986 |
| 4619733 |
Pollution free pulping process using recycled wash effluent from multiple bleach stages to remov... |
October 28, 1986 |
| 4602999 |
Method for removing a silicic compound from the waste liquor of steel pickling |
July 29, 1986 |
| 4601786 |
Recovery of chemicals from pulp waste liquor with plasma generator heating |
July 22, 1986 |
| 4581207 |
Recovery of aluminum from spent liquor |
April 8, 1986 |
| 4566529 |
Cooling device, in which converters or rectifiers or other semiconductor components are immersed... |
January 28, 1986 |
| 4563340 |
Process for the secondary obtention of sodium carbonate from FLP waste liquor |
January 7, 1986 |
| 4561934 |
Method of recovering chemicals from chloride-containing green liquor |
December 31, 1985 |
| 4551198 |
Method of flashing black liquor |
November 5, 1985 |
| 4547348 |
Conditioning of laterite pressure leach liquor |
October 15, 1985 |
| 4543163 |
Process for recovery of amine from spent acid stripping liquor |
September 24, 1985 |
| 4540556 |
Dual alkali scrubber liquor regeneration with production of gypsum |
September 10, 1985 |
| 4537656 |
Method for delignifying or bleaching cellulose pulp wherein chlorine is added to recycle liquor ... |
August 27, 1985 |
| 4536253 |
Process for controlling the properties of white liquor |
August 20, 1985 |
| 4529479 |
Method for multistage bleaching and washing with recycle of displaced bleaching liquor |
July 16, 1985 |
| 4522685 |
Method of operating a spent pulping liquor combustion apparatus |
June 11, 1985 |
| 4517053 |
Apparatus for sampling paper pulp liquor |
May 14, 1985 |
| 4498955 |
Control of active alkali in black liquor |
February 12, 1985 |
| 4496524 |
Process for the removal of sodium oxalate compounds from Bayer spent liquor |
January 29, 1985 |
| 4491501 |
Method for washing a fibrous particle mat with wash liquor having an impact energy sufficient to... |
January 1, 1985 |
