| Patent Number |
Title Of Patent |
Date Issued |
| 4279754 |
Means for separation of gas and solids from waste mixed liquor |
July 21, 1981 |
| 4274911 |
Method of cooking cellulose material and preserving the heat and terpentine content of the cooki... |
June 23, 1981 |
| 4275042 |
Removal of oxalate from Bayer process liquor |
June 23, 1981 |
| 4275043 |
Removal of oxalate from bayer process liquor |
June 23, 1981 |
| 4263092 |
Method for treating black liquor using acrylic acid polymer |
April 21, 1981 |
| 4258016 |
Process for recovering Ni (II), Cu (II) and Co (II) from an ammoniacal-ammonium sulfate leach li... |
March 24, 1981 |
| 4256695 |
Copper liquor control system |
March 17, 1981 |
| 4256702 |
Process for the separation of uranium contained in an alkaline liquor |
March 17, 1981 |
| 4256713 |
Flue gas treatment with intermittent addition of alkaline reagent to scrubbing liquor |
March 17, 1981 |
| D258478 |
Liquor bar |
March 10, 1981 |
| 4252571 |
Bone char and activated carbon mixtures for sugar liquor purification |
February 24, 1981 |
| D258253 |
Liquor bar cabinet |
February 17, 1981 |
| 4248662 |
Oxygen pulping with recycled liquor |
February 3, 1981 |
| 4248663 |
Pulping with an alkaline liquor containing a cyclic keto compound and an amino compound |
February 3, 1981 |
| 4244711 |
Process for minimizing the deposition of materials in the ammonia liquor coolers in the coking o... |
January 13, 1981 |
| 4244779 |
Method of treating spent pulping liquor in a fluidized bed reactor |
January 13, 1981 |
| 4244846 |
Sulfite waste liquor-urea formaldehyde resin plywood glue |
January 13, 1981 |
| 4242177 |
Method for oxidizing malodorous sulfur compounds in kraft cooking liquor |
December 30, 1980 |
| 4241030 |
Continuous process for obtaining pure alumina from an acidic liquor originating from the chloros... |
December 23, 1980 |
| 4239589 |
Process for oxidation of black liquor |
December 16, 1980 |
| 4237818 |
Means for applying treating liquor to textile substrate |
December 9, 1980 |
| 4236960 |
Process for controlling the degree of causticization in the preparation of white liquid from the... |
December 2, 1980 |
| 4227966 |
Method for combusting a mixture of spent magnesium sulphite digestion liquor and alkaline oxygen... |
October 14, 1980 |
| 4227151 |
Measurement and monitoring of the electrical conductivity of liquor samples |
October 7, 1980 |
| 4219669 |
Method of treating mother liquor of reaction in terephthalic acid production |
August 26, 1980 |
| 4213336 |
Device for measuring flow of weak cell liquor |
July 22, 1980 |
| 4212702 |
Process for recovery of chemicals from pulping waste liquor |
July 15, 1980 |
| 4198204 |
Short liquor dyeing process for piece goods, made from cellulose fibers, in rope form |
April 15, 1980 |
| 4197139 |
Process for the reclamation of acid from spent pickle liquor |
April 8, 1980 |
| 4194997 |
Sulfite spent liquor-urea formaldehyde resin adhesive product |
March 25, 1980 |
| 4193839 |
Flow control method and apparatus for continuous wood chip digester screenless liquor extractor |
March 18, 1980 |
| 4193902 |
Finely particulate plastics dispersions prepared by metering a mixture containing four monomers ... |
March 18, 1980 |
| 4192708 |
Method for controlling the addition of active chemical for delignifying and/or bleaching cellulo... |
March 11, 1980 |
| 4191610 |
Upgrading waste paper by treatment with sulfite waste liquor |
March 4, 1980 |
| 4191786 |
Preparation of dispersible chocolate liquor by extrusion |
March 4, 1980 |
| 4188195 |
Treatment of waste liquor |
February 12, 1980 |
| 4187279 |
Device for recovering sodium chemicals from green liquor and flue gases |
February 5, 1980 |
| 4178861 |
Method for the delignification of lignocellulosic material in an amine delignifying liquor conta... |
December 18, 1979 |
| 4173656 |
Means and method for aging liquor |
November 6, 1979 |
| 4172006 |
Method of delignifying wood chips with oxygen by adding cooking liquor under pressure |
October 23, 1979 |
| 4169068 |
Stripping liquor composition for removing photoresists comprising hydrogen peroxide |
September 25, 1979 |
| 4169131 |
Process for recovering caustic alkali from spent alkali liquor |
September 25, 1979 |
| 4168252 |
Process for manufacturing organosilicon synthetic resin from alkali pulp black liquor |
September 18, 1979 |
| 4165217 |
Halohydrocarbon treatment of a glycol and waste dye liquor followed by water extraction of the g... |
August 21, 1979 |
| 4161395 |
Foam and liquor separator |
July 17, 1979 |
| 4159922 |
Accelerated process for causticization of Kraft green liquor |
July 3, 1979 |
| 4157595 |
Process for the uniform dyeing of textile material webs with the aid of a uniform application of... |
June 12, 1979 |
| 4155983 |
Gold recovery by adsorption from ozonized cyanidation liquor |
May 22, 1979 |
| 4154643 |
Recovery process and apparatus for alkali metal-containing spent liquor |
May 15, 1979 |
| 4153502 |
Process for the production of polysulphide pulping liquor from pulp mill recovery smelt |
May 8, 1979 |
