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Class Information
Number: 162/23
Name: Paper making and fiber liberation > Processes of chemical liberation, recovery or purification of natural cellulose or fibrous material > Mechanical defibration in the presence of heated gas or gas under pressure
Description: Processes in which the fibrous material is subjected simultaneously to a mechanical disintegrating or attrition step and a digestion in the presence of a gas at an elevated temperature or pressure.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7381303 |
System and method for controlling a thermo-mechanical wood pulp refiner |
Jun. 3, 2008 |
| 7368037 |
Refiner steam separation system for reduction of dryer emissions |
May. 6, 2008 |
| 7303707 |
Processing of ligno-cellulose materials |
Dec. 4, 2007 |
| 7300550 |
High intensity refiner plate with inner fiberizing zone |
Nov. 27, 2007 |
| 7300540 |
Energy efficient TMP refining of destructured chips |
Nov. 27, 2007 |
| 7300541 |
High defiberization chip pretreatment |
Nov. 27, 2007 |
| 7008505 |
Eucalyptus biomechanical pulping process |
Mar. 7, 2006 |
| 6899791 |
Method of pretreating lignocellulose fiber-containing material in a pulp refining process |
May. 31, 2005 |
| 6899790 |
Method of providing papermaking fibers with durable curl |
May. 31, 2005 |
| 6778936 |
Consistency determining method and system |
Aug. 17, 2004 |
| 6673201 |
Top separator with intraseal for digester vessel in a pulp or fiber processing system |
Jan. 6, 2004 |
| 6673211 |
Apparatus for loading fibers in a fiber suspension with calcium carbonate |
Jan. 6, 2004 |
| 6627041 |
Method of bleaching and providing papermaking fibers with durable curl |
Sep. 30, 2003 |
| 6464826 |
Method for producing and treating wood fiber |
Oct. 15, 2002 |
| 6364998 |
Method of high pressure high-speed primary and secondary refining using a preheating above the glass transition temperature |
Apr. 2, 2002 |
| 6364997 |
Raw stock for photographic paper |
Apr. 2, 2002 |
| 6346165 |
Method for production of lignocellulosic composite materials |
Feb. 12, 2002 |
| 6200417 |
Process and device for mixing stock suspensions |
Mar. 13, 2001 |
| 6165317 |
Control of refined pulp quality by adjusting high temperature pre-heat residence time |
Dec. 26, 2000 |
| 6073865 |
Process and devices for manufacturing a hot friable material |
Jun. 13, 2000 |
| 5853534 |
Method of producing pulp with high yield using a two-stage refining system operating at different temperatures |
Dec. 29, 1998 |
| 5776305 |
Low-resident, high-temperature, high-speed chip refining |
Jul. 7, 1998 |
| 5733412 |
Decolorizing brown fibers in recycled pulp |
Mar. 31, 1998 |
| 5656129 |
Method of producing fibers from a straw and board products made therefrom |
Aug. 12, 1997 |
| 5645690 |
Pressure relief system for treating fibrous materials under pressure |
Jul. 8, 1997 |
| 5385640 |
Process for making microdenominated cellulose |
Jan. 31, 1995 |
| 5338366 |
Acid pre-hydrolysis reactor system |
Aug. 16, 1994 |
| 5267655 |
Method and apparatus for treating a gas containing aqueous fiber suspension |
Dec. 7, 1993 |
| 5176793 |
Method of treating and a disperger for disintegrating wood pulp, especially containing waste paper |
Jan. 5, 1993 |
| 5152871 |
Method for decreasing energy consumption during refining of fiber material while maintaining capacity |
Oct. 6, 1992 |
| 5114535 |
Process for the production of cellulose acetate from wood pulp |
May. 19, 1992 |
| 5112443 |
Method and apparatus for the manufacture of fibre pulp |
May. 12, 1992 |
| 5076892 |
Apparatus for pressurized refining of lignocellulose material |
Dec. 31, 1991 |
| 5047118 |
Method for decreasing energy consumption during refining of fiber material at a reduced grinding frequency while maintaining capacity |
Sep. 10, 1991 |
| 5036900 |
Method for acetylating shredded cellulosic |
Aug. 6, 1991 |
| 5034099 |
Apparatus for the manufacture of fiber pulp using a preheater, defibrator and horizontal separator |
Jul. 23, 1991 |
| 4963227 |
System and apparatus for recovery of turpentine from thermomechanical pulping process |
Oct. 16, 1990 |
| 4954221 |
Apparatus for feeding lignocellulose-containing material through a steam screen into a refiner |
Sep. 4, 1990 |
| 4954620 |
Thermocondensed lignocellulose material, and a method and an oven for obtaining it |
Sep. 4, 1990 |
| 4878997 |
Method and apparatus for manufacturing fibre pulp |
Nov. 7, 1989 |
| 4816572 |
Thermocondensed lignocellulose material, and a method and an oven for obtaining it |
Mar. 28, 1989 |
| 4772358 |
Method for making pulp |
Sep. 20, 1988 |
| 4725336 |
Refiner apparatus with integral steam separator |
Feb. 16, 1988 |
| 4710268 |
Method for regulating the pressure of blow-through discharge steam from a reboiler of process steam produced during production of mechanical pulp |
Dec. 1, 1987 |
| 4692214 |
Apparatus for producing mechanical pulp with a refiner having its drive shaft connected to a steam turbine output shaft |
Sep. 8, 1987 |
| 4668341 |
Method and apparatus for producing mechanical pulp with a steam turbine driven refiner |
May. 26, 1987 |
| 4606789 |
Method for manufacturing cellulose pulp using plural refining and fiber separation steps with reject recycling |
Aug. 19, 1986 |
| 4600475 |
Refining apparatus with radial passageways for steam recovery |
Jul. 15, 1986 |
| 4563243 |
Apparatus and a method for producing wood pulp in a hollow cylinder containing a rotatable screw |
Jan. 7, 1986 |
| 4537655 |
Process for producing and flash drying high yield mechanical cellulose pulp with steam and condensate recycle |
Aug. 27, 1985 |
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