| Patents for D21C 11 - Regeneration of pulp liquors (4,054) |
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| 02/19/2009 | US20090044767 Boiler arrangement |
| 02/18/2009 | EP2025807A1 Method to recover chemicals in mechanical pulping |
| 02/18/2009 | EP2024559A1 Apparatus for cleaning a smelt spout of a combustion device |
| 02/18/2009 | CN201195814Y Apparatus for extracting xylogen with zero discharge of papermaking black liquor |
| 02/12/2009 | WO2009021216A2 Lignin dewatering process |
| 02/12/2009 | US20090038212 Lignin Dewatering Process |
| 02/11/2009 | EP2022888A1 Device and method for cleaning and/or cooling a liquor gun |
| 02/11/2009 | CN101363201A Method for preparing edible fruit and vegetable dietary fiber paper |
| 02/11/2009 | CN100460592C Processing mthod of white water from paper making |
| 02/10/2009 | CA2372408C Device for gasification of spent liquor |
| 02/10/2009 | CA2365406C Process for cooling solid and gaseous material during gasification of spent liquor |
| 02/05/2009 | WO2009015703A1 Method and system for processing the waste lye of a sulphite method |
| 02/05/2009 | WO2009015614A1 Method and equipment for production of glucose, ethanol, furfural, furane and lignin from renewable raw materials |
| 02/05/2009 | DE102007036380A1 Verfahren und Anlage zur Aufbereitung der Ablauge eines Sulfitverfahrens Method and apparatus for treatment of waste liquor of sulfite |
| 02/04/2009 | CN101358436A Banana tree paper manufacture technique, slurry storage technique and sewage disposal technique thereof by soft chemistry method |
| 01/29/2009 | WO2009012597A1 Process for treating pulp mill condensates using a hollow fiber contactor |
| 01/29/2009 | US20090025892 Method to recover chemicals in mechanical pulping |
| 01/28/2009 | CN201187012Y Multifunctional papermaking black liquor vacuum concentration apparatus |
| 01/27/2009 | CA2404010C Method to lower the release of hazardous air pollutants from kraft recovery process |
| 01/21/2009 | CN201183921Y Black liquor slot defoaming apparatus |
| 01/15/2009 | US20090014137 Apparatus and method for a liquid gun |
| 01/14/2009 | EP1664421A4 Chemimechanical desilication of nonwood plant materials |
| 01/14/2009 | CN101343843A Method for improving wastepaper pulping closed process water quality by using tripolite |
| 01/14/2009 | CN101343122A Regeneration treatment method and device for black liquor of papermaking |
| 01/14/2009 | CN100451235C Paper pulp manufacturing process and equipment |
| 01/13/2009 | US7475645 Retractable liquor gun holder for a recovery furnace |
| 01/08/2009 | WO2009006262A1 Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products |
| 01/08/2009 | CA2692413A1 Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products |
| 01/07/2009 | CN101341107A Polyareneazole/thermoset pulp and methods of making same |
| 01/01/2009 | US20090000751 Bleaching process with at least one extraction stage |
| 12/30/2008 | CA2370956C Method for causticisation of alkaline solutions |
| 12/24/2008 | WO2008156397A1 Method for recovering chemicals and production of steam |
| 12/24/2008 | CN101328693A Clean production method of chemical pulping paper making and aluminum oxide cogeneration |
| 12/24/2008 | CN101328692A Paper pulp fabrication process and system |
| 12/24/2008 | CN100445464C Method for lignin extraction by papermaking black liquor acidification and flocculation precipitation |
| 12/23/2008 | US7468176 A slurry is created of burned lime and a first part of the soda liquor (green liquor), a second part being preheated before addition to the slurry; slaking and causticizing reactions to form caustic soda are completed under elevated temperature and pressure; for use in the kraft pulping industry |
| 12/17/2008 | EP2003242A1 A recovery boiler plant and a method in a recovery boiler |
| 12/17/2008 | CN101326326A New catalystic reactor method for producing commercial grade pulp, native lignin and single cell protein |
| 12/16/2008 | US7465372 Method for treatment of spent liquor |
| 12/15/2008 | CA2635070A1 A recovery boiler plant and a method in a recovery boiler |
| 12/10/2008 | CN101319470A Improved APMP pulping method |
| 12/04/2008 | WO2008144903A1 Concurrent anaerobic digestion and fermentation of lignocellulosic feedstocks |
| 12/04/2008 | CA2687916A1 Concurrent anaerobic digestion and fermentation of lignocellulosic feedstocks |
| 12/03/2008 | CN101314927A Energy conservation type barrate type black liquor extracting machine |
| 12/03/2008 | CN101314924A Pulping paper-making process with zero discharge of sewage water |
| 11/27/2008 | WO2008141463A1 Method to remove hemicellutose from cellutosic fibres using a solution of ammonia and hydrogen peroxide |
| 11/27/2008 | US20080289782 recovery process and system for a pulp mill |
| 11/27/2008 | CA2687581A1 Method to remove hemicellulose from cellulosic fibres using a solution of ammonia and hydrogen peroxide |
| 11/26/2008 | EP1995376A1 Method of manufacturing pulp |
| 11/20/2008 | WO2008141121A1 Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators |
| 11/20/2008 | WO2008138424A1 Waste lye of a sulphite pulp |
| 11/20/2008 | CA2685076A1 Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators |
| 11/19/2008 | CN101307578A Paper making sludge deodorization method |
| 11/19/2008 | CN100434593C Vacuum foam-removing system for black liquid |
| 11/13/2008 | DE102007022751A1 Ablauge eines Sulfitaufschlusses A liquor Sulfitaufschlusses |
| 11/05/2008 | EP1245723B1 Method for recovering chemicals in a process of producing pulp by kraft process |
| 10/30/2008 | WO2008129117A1 A recovery process for a pulp mill |
| 10/30/2008 | CA2685120A1 A recovery process for a pulp mill |
| 10/29/2008 | EP1984562A1 Method for recovering hydrolysis products |
| 10/28/2008 | US7442348 Sulfur-bearing residue treatment system |
| 10/28/2008 | CA2369856C Method and apparatus for concentrating slurried solids |
| 10/22/2008 | CN101289820A Process and device for abstracting lignose with zero discharge of paper making black liquor |
| 10/22/2008 | CN100427678C Purifying treating process of paper making green liquid and application of abtained white mud |
| 10/15/2008 | CN101285278A Recovering process for white water of paper making by stewing type precipitation method |
| 10/15/2008 | CN101285277A Hyperfiltration process of pulping and digesting black liquor |
| 10/15/2008 | CN101285276A Paper making process of waste water cyclic utilization in production of renewable wrapper paper |
| 10/15/2008 | CN101284393A Medium-density fiberboard production waste drainage closed cycle loop back technique |
| 10/14/2008 | US7434543 Arrangement in recovery boiler |
| 10/02/2008 | WO2008118071A1 An arrangement for the adjustment of equipment for a boiler |
| 10/01/2008 | CN101275371A Non-chemical steaming semi-mechanical pulping paper making process and apparatus therefor |
| 10/01/2008 | CN100422434C System for producing energy at a pulp mill |
| 09/24/2008 | CN100420790C Alkali process and iminium process straw pulp black liquor hybrid dry matter and preparation method thereof |
| 09/23/2008 | CA2336477C Method and arrangement for cleaning contaminated condensate including a combined stripper/condenser |
| 09/17/2008 | EP1969175A1 A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein |
| 09/17/2008 | EP1968910A1 Polyareneazole/thermoset pulp and methods of making same |
| 09/17/2008 | CN100419155C Closed control method of paper-making waste water |
| 09/10/2008 | CN100417500C Arundo donax pulp, paper product and flakeboard |
| 09/04/2008 | WO2008104074A1 Higher than 30% concentration lime slurries, preparation and uses thereof |
| 09/03/2008 | CN201109885Y Regeneration papermaking sewage zero discharging apparatus |
| 09/03/2008 | CN101258116A Method for arranging chemical barrier in gasifying reactor for black liquor, chemical gasifying reactor, barrier layer of reactor and method for manufacturing building block for such a barrier layer |
| 09/03/2008 | CN101255664A Method for pulping of non-lumber fibre |
| 09/03/2008 | CN101254504A Plate-type down-film evaporator descaling method |
| 08/28/2008 | WO2008027286A3 Process and system for calcination of high solids lime mud |
| 08/21/2008 | WO2008027285A3 Process and system for producing commercial quality carbon dioxide from high solids lime mud |
| 08/20/2008 | CN201103072Y High-concentration extractor for papermaking black liquor |
| 08/20/2008 | CN101245565A Zero discharge clean method for producing corn cane man-made fiber pulp, xylitol |
| 08/13/2008 | EP1171665B1 Process for the production of furfural from lignosulphonate waste liquor |
| 08/13/2008 | CN101240512A Liquid-phase circulation regeneration method for alkali in alkaline paper-making pulping technique |
| 08/08/2008 | CA2578305A1 Process for recovery of oligosaccharides and polysaccharides during pulping |
| 08/06/2008 | EP1264041B1 Process for producing cellulose pulp and fertiliser containing potassium |
| 08/06/2008 | CN100408918C Method for dealing with discharge liquid from paper, leather and dye printing industry using circulating fluidized combustion method |
| 07/30/2008 | CN101230550A Method for making pulp by secondary water cyclic utilization of boiling waste fluid, waste vapour and lignin |
| 07/29/2008 | CA2385209C A method in a soda recovery boiler, and a soda recovery boiler |
| 07/23/2008 | CN201089866Y Yellow plasm scouring splitter for paper-making pulping |
| 07/22/2008 | CA2322429C Method of reducing nox compounds in flue gases of recovery boiler |
| 07/16/2008 | CN101220565A Pulping method with zero discharge of sewage water |
| 07/15/2008 | CA2273591C Partial autocausticization of alkali liquors for wood pulping processes |
| 07/10/2008 | US20080164222 Method and Apparatus for Thickening Lime Mud in a Disc Filter |
| 07/09/2008 | CN101215797A Zero discharge treatment method for chemical mechanical pulp |
| 07/08/2008 | CA2378927C Preparation of chemical pulp and xylose, utilizing a direct acid hydrolysis on the pulp |