| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
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| 05/02/1996 | WO1996012565A1 Apparatus for treating fibrous suspensions |
| 05/01/1996 | EP0709521A1 Method for increasing pulp consistency |
| 04/30/1996 | US5512137 Method and apparatus for measuring contaminating impurities in pulp slurry |
| 04/27/1996 | CA2159748A1 Method for increasing pulp consistency |
| 04/25/1996 | WO1996012183A1 A method of determining the organic content in pulp and paper mill effluents |
| 04/25/1996 | WO1996012063A1 Method for removal of hexenuronic acid groups in cellulose pulp by heat treatment |
| 04/25/1996 | WO1996012062A1 A method and apparatus for bleaching secondary fibres |
| 04/24/1996 | EP0707671A1 Process for removing metal ions from liquids |
| 04/24/1996 | EP0707637A1 Enhancement of laccase reactions |
| 04/23/1996 | US5510439 Water soluble surfactant comprised vinyl trialkoxysilane monomer and a monomer having ammonium groups; papermaking |
| 04/23/1996 | US5509999 Desulfurization by injecting carbon dioxide gas, demetallization by adjusting the ph alkalinity to precipitate |
| 04/18/1996 | WO1996011299A1 A method for treating acid and alkaline waste streams from a bleach plant separately |
| 04/18/1996 | WO1996011298A1 Treatment of chemical pulp with a chelating agent and an oxidizing agent in connection with bleaching |
| 04/18/1996 | WO1996011297A1 Washing pulp using an endless support fabric |
| 04/18/1996 | WO1996011262A1 An enzyme and enzyme preparation with endoglucanase activity |
| 04/18/1996 | CA2208262A1 Washing pulp using an endless support fabric |
| 04/18/1996 | CA2201117A1 A process for treatment of effluents from a pulp producing plant |
| 04/18/1996 | CA2199257A1 Treatment of chemical pulp with a chelating agent and an oxidizing agent in connection with bleaching |
| 04/16/1996 | US5507913 Impregnating pulp with aqueous organic solvent medium, bleaching with ozone, neutralizing with caustic, feeding to stripping vessel, heating to evaporate solvent, separating to provide solvent-free pulp, reusable solvent |
| 04/11/1996 | WO1996006221A3 A pulp slurry-handling press roll, and twin roll and single roll slurry-handling presses |
| 04/10/1996 | EP0705362A1 Improved ozone/peracid process for delignifying a lignocellulosic material |
| 04/10/1996 | EP0705361A1 Gas phase delignification of lignocellulosic material |
| 04/10/1996 | EP0705360A1 A process for bleaching pulp without using chlorine-containing chemicals |
| 04/10/1996 | EP0674730A4 Pulp and bleaching reagent mixer and method. |
| 04/10/1996 | CN1120358A Method of treating process water |
| 04/10/1996 | CN1120100A Laminate base stock |
| 04/09/1996 | US5505540 Device for admixing a processing agent to a pulp suspension |
| 04/03/1996 | EP0704004A1 Method for multistage bleaching of wood pulp |
| 04/03/1996 | EP0703971A1 Use of glycine-n,n-diacetic acid derivatives as biodegradable complexing agents for alkaline earth and heavy metal ions, and method of preparing them |
| 04/02/1996 | US5503709 Separation in presence of enzymes; peroxygen delignification |
| 03/28/1996 | WO1996009434A1 Method of bleaching kraft pulp |
| 03/28/1996 | WO1996009433A1 Paper pulp washing method |
| 03/27/1996 | EP0702735A1 Method of bleaching pulp without using chlorine chemicals |
| 03/27/1996 | EP0677124B1 Process in association with pulp bleaching |
| 03/27/1996 | EP0670926B1 Papermaking process |
| 03/26/1996 | CA2012771C Method of bleaching cellulose pulp with ozone |
| 03/20/1996 | EP0496782B1 High efficiency chlorine dioxide pulp bleaching process |
| 03/20/1996 | CN1119025A Oxidising agents |
| 03/20/1996 | CN1118869A Arrangement for lowering the noise level in connection with the cooling layer in a pulp dryer |
| 03/17/1996 | CA2139884A1 Use of polymers in the recycled fiber washing/deinking process |
| 03/13/1996 | EP0407421B1 A method for reducing residual chlorine content in hardwood pulp |
| 03/07/1996 | WO1996006978A1 Method of papermaking having zero liquid discharge |
| 03/07/1996 | WO1996006976A1 Pulp bleaching |
| 03/07/1996 | WO1996006975A1 Thin mat washing of cellulosic pulp |
| 03/07/1996 | CA2208269A1 Method of papermaking having zero liquid discharge |
| 03/07/1996 | CA2208265A1 Thin mat washing of cellulosic pulp |
| 03/07/1996 | CA2197771A1 Pulp bleaching |
| 03/05/1996 | CA2037717C Extended kraft cooking with white liquor added to wash circulation |
| 03/01/1996 | CA2157154A1 Bleaching of high-yield pulps with oxygen |
| 02/29/1996 | WO1996006221A2 A pulp slurry-handling press roll, and twin roll and single roll slurry-handling presses |
| 02/29/1996 | WO1996006217A1 Enhancements in pulping with dissolved solids control |
| 02/28/1996 | EP0698667A1 Xylanase, microorganisms for its production, DNA molecules, process of preparation and use thereof |
| 02/28/1996 | EP0698139A1 Dissolved solids control in pulp production |
| 02/28/1996 | CN1117710A Cosmetic |
| 02/22/1996 | WO1996005365A1 Means for gas-sealingly conveying shredded pulp |
| 02/22/1996 | WO1996005364A1 Bleaching of chemical paper pulp under sulphonating conditions |
| 02/22/1996 | WO1996005363A1 Method and device for concentrating or washing fibrous material |
| 02/22/1996 | WO1996005354A1 Concentrate of stabilisers for aqueous bleaching and treating solutions based on hydrogen peroxide and/or other inorganic and/or organic peroxo compounds |
| 02/22/1996 | CA2197190A1 Means for gas-sealingly conveying shredded pulp |
| 02/22/1996 | CA2194290A1 Bleaching of chemical paper pulp under sulphonating conditions |
| 02/21/1996 | CN1117301A Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent |
| 02/21/1996 | CN1117101A A method for producing chemithermomechanical pulp |
| 02/15/1996 | DE4428360A1 Stabilisierungsmittel-Konzentrat für wäßrige Bleichlösungen auf Basis von Wasserstoffperoxid und/oder anderen anorganischen und/oder organischen Peroxoverbindungen Stabilizer concentrate for aqueous bleaching solutions based on hydrogen peroxide and / or other inorganic and / or organic peroxo compounds |
| 02/14/1996 | EP0487557B1 Improvement of pulp bleaching |
| 02/13/1996 | CA2086324C Pressurized dynamic washer |
| 02/08/1996 | WO1996003546A1 Process for preparing a lignocellulose-based product, and product obtainable by the process |
| 02/06/1996 | US5489363 Pulping with low dissolved solids for improved pulp strength |
| 02/01/1996 | WO1996002699A1 A method and an arrangement relating to bleaching with pressurized peroxide |
| 02/01/1996 | WO1996002697A1 Improved bleaching of high consistency lignocellulosic pulp |
| 02/01/1996 | WO1996002632A1 Novel xylanase, process for producing the same, method for the treatment of pulp, and production of xylo-oligosaccharides |
| 02/01/1996 | CA2194962A1 Improved bleaching of high consistency lignocellulosic pulp |
| 01/31/1996 | EP0694097A1 Reciprocal movable screens in a vertically elongated vessel |
| 01/30/1996 | US5487812 Treatment of alkaline bleached mechanical wood pulp with pectinase |
| 01/30/1996 | US5487419 Cellulose suspension and drying |
| 01/30/1996 | CA2129171A1 Actinomadura xylanase sequences and method of use |
| 01/25/1996 | WO1996001922A1 Method for bleaching wood pulp using hydrogen peroxide |
| 01/25/1996 | WO1996001921A1 High efficiency vessels for bleaching lignocellulosic, cellulosic and synthetic polymeric fibrous materials |
| 01/25/1996 | WO1996001920A1 Peroxide bleaching process for cellulosic and lignocellulosic material |
| 01/25/1996 | WO1996001593A1 Method for delivering a gas-supersaturated fluid to a gas-depleted site and use thereof |
| 01/25/1996 | CA2194961A1 Method for delivering a gas-supersaturated fluid to a gas-depleted site and use thereof |
| 01/25/1996 | CA2194882A1 High efficiency vessels for bleaching lignocellulosic, cellulosic and synthetic polymeric fibrous materials |
| 01/25/1996 | CA2194881A1 Method for bleaching wood pulp using hydrogen peroxide |
| 01/25/1996 | CA2194880A1 Peroxide bleaching process for cellulosic and lignocellulosic material |
| 01/24/1996 | EP0693144A1 Method of treating process water |
| 01/23/1996 | US5486468 Delignification of wood pulp |
| 01/23/1996 | US5486268 Oxygen delignification of old corrugated containers |
| 01/23/1996 | CA2036173C Process for the chlorine-free bleaching and delignification of cellulose |
| 01/18/1996 | WO1996001340A1 Aqueous based ozone bleaching |
| 01/18/1996 | WO1996001339A1 Arrangement for a continuous diffuser for washing pulp |
| 01/18/1996 | CA2194280A1 Aqueous based ozone bleaching |
| 01/18/1996 | CA2193958A1 Arrangement for a continuous diffuser for washing pulp |
| 01/17/1996 | EP0692044A1 Method for reusing spent gas from an ozone bleaching reactor |
| 01/11/1996 | WO1996000811A1 Production of soft paper products from old newspaper |
| 01/11/1996 | CA2194188A1 Production of soft paper products from old newspaper |
| 01/10/1996 | EP0690937A1 Process for crosslinking of cellulosic fibers |
| 01/09/1996 | US5482594 Liquid removal apparatus and method for wood pulp |
| 01/09/1996 | US5482514 Process for enhancing the whiteness, brightness and chormaticity of paper making fibres |
| 01/09/1996 | CA2078308C Recovering pulp mill chlorine dioxide emission |
| 01/04/1996 | WO1996000322A1 Improved process for recycling bleach plant filtrate |
| 01/04/1996 | CA2193829A1 Improved process for recycling bleach plant filtrate |