| Patents for D21C 11 - Regeneration of pulp liquors (4,054) |
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| 03/03/2015 | US8968515 Methods for pretreating biomass |
| 03/03/2015 | US8968479 Production of fermentable sugars and lignin from biomass using supercritical fluids |
| 02/26/2015 | WO2015025076A1 Method and system for treating lignin |
| 02/18/2015 | EP2837686A1 Conditioning of SO2-ethanol-water spent liquor for fermentation by clostridia |
| 02/17/2015 | CA2665721C A method and device for emptying the floor of a soda recovery boiler |
| 02/12/2015 | WO2015021130A1 Processes for purifying a cellulosic material |
| 02/11/2015 | CN204147599U 一种造纸白水回收塔 A papermaking white water recovery tower |
| 02/11/2015 | CN204147598U 一种新型沉淀塔 A new tower precipitation |
| 02/11/2015 | CN102561086B 制备纺锤晶形碱回收白泥的方法 Preparation methods Nai spindle crystalline Recovery |
| 02/10/2015 | CA2784030C Method and process for dry discharge in a pressurized pretreatment reactor |
| 01/29/2015 | WO2015013146A1 Method of deposition monitoring |
| 01/29/2015 | WO2015011275A1 Process for obtaining cellulose |
| 01/29/2015 | WO2015010179A1 Method of reducing chloride and potassium ion concentrations in a pulp mill chemical recovery system |
| 01/27/2015 | US8940133 Product and processes from an integrated forest biorefinery |
| 01/27/2015 | US8940130 Method for separating lignin from black liquor |
| 01/27/2015 | US8940129 Process for reducing one or more insoluble solids in a black liquor |
| 01/27/2015 | CA2694125C Method in the treatment of odorous gases of a chemical pulp mill |
| 01/21/2015 | EP2825698A1 Method for lignin separation from black liquor |
| 01/21/2015 | CN204111359U 一种造纸废水用气浮机 A papermaking wastewater by flotation machine |
| 01/21/2015 | CN104302832A 化学纸浆厂的回收锅炉设备 Chemical pulp mill recovery boiler equipment |
| 01/14/2015 | CN103103846B 一种从生物质原料中提取木质素的工艺 The process of extracting lignin from biomass feedstock |
| 01/14/2015 | CN102877351B 一种处理高浓度废碱液的方法 A method of treating high concentrations of waste lye |
| 01/08/2015 | WO2015001186A1 Method for treating effluents and process waters |
| 01/08/2015 | WO2015001185A1 Method for reducing phosphorus in effluents and process waters |
| 01/08/2015 | US20150007951 Method for recovery of molybdate in a molybdate-catalysed delignification of pulp with hydrogen peroxide |
| 01/07/2015 | CN204080531U 实现木浆造纸黑液处理及回收的集成装置 Achieve pulp black liquor treatment and recycling of integrated devices |
| 01/07/2015 | CN204080530U 宣纸生产黑液的处理系统 Xuan paper production of black liquor treatment systems |
| 01/06/2015 | US8927235 Methods of hydrolyzing oligomers in hemicellulosic liquor |
| 12/25/2014 | US20140374039 Method for the causticizing process for producing white liquor |
| 12/16/2014 | US8914142 Method and a system for optimization of parameters for a recovery boiler |
| 12/10/2014 | CN204000430U 除氯钾工段加热装置 Dechlorination potassium section heating device |
| 12/10/2014 | CN204000429U 一种除氯钾装置 One kind of potassium chloride extraction device |
| 12/10/2014 | CN104195860A 宣纸生产黑液的处理方法及系统 Xuan paper black liquor production processing method and system |
| 12/04/2014 | US20140352900 Flash tank with flared inlet insert and method for introducing flow into a flash tank |
| 12/02/2014 | US8900457 Fermentation and chemical treatment of pulp and paper mill sludge |
| 11/25/2014 | US8894819 In-line drainer with shaped screen slots |
| 11/25/2014 | US8894818 Process for generating a hydrocarbon feedstock lignin |
| 11/18/2014 | US8888955 Method and equipment for the evaporation of black liquor that is obtained from a digestion process during the production of cellulose pulp |
| 11/06/2014 | US20140326421 Processes for Purifying a Cellulosic Material |
| 10/28/2014 | US8871061 Method and apparatus for in-feeding of matter to a process reactor |
| 10/21/2014 | US8864941 Separation of lignin from hydrolyzate |
| 10/09/2014 | US20140299584 Plasma whirl reactor apparatus and methods of use |
| 10/09/2014 | US20140299459 Plasma whirl reactor apparatus and methods of use |
| 10/07/2014 | US8853478 Method for the integrated production of cellulose and low-molecular-weight reusable materials |
| 10/02/2014 | WO2014159892A1 Methods for digestion of cellulosic biomass solids in the presence of a phenolic solvent |
| 10/02/2014 | WO2014159887A1 Methods for digestion of cellulosic biomass solids in the presence of a phenolic solvent generated in situ from lignin |
| 10/02/2014 | WO2014159877A1 Methods for digestion of cellulosic biomass solids in the presence of a phenolic solvent generated in situ from lignin |
| 10/02/2014 | WO2014159709A1 System and process for recovering heat from weak black liquor in a wood pulping process |
| 09/25/2014 | WO2014148996A1 Method and arrangement for the separation of tall oil products from black liqour |
| 09/25/2014 | WO2014148993A1 Method for measuring soap content in black liquor and an analytical container |
| 09/18/2014 | WO2014140643A1 Treatment |
| 09/17/2014 | EP2776622A2 Cooled smelt restrictor at cooled smelt spout for distrupting smelt flow from the boiler |
| 09/17/2014 | EP2776621A1 Method for lignin separation from black liquor involving multiple acidification steps |
| 09/10/2014 | EP2773812A1 Method for the causticizing process for producing white liquor |
| 09/04/2014 | WO2014132055A1 Biomass process optimisation |
| 09/02/2014 | US8821686 Method and equipment for treatment of black liquor at pulp mill |
| 08/26/2014 | US8815053 Method of treating liquid flows at a chemical pulp mill |
| 08/26/2014 | US8815052 Method for separating lignin from a lignin containing liquid/slurry |
| 08/19/2014 | US8808498 Heat recovery from spent cooking liquor in a digester plant of a chemical pulp mill |
| 08/19/2014 | US8808461 Method and device for emptying the floor of a black liquor recovery boiler |
| 08/07/2014 | WO2014118441A1 Method for recovering chemicals and by-products from high-sulphidity pulping liquors |
| 08/06/2014 | CN103966879A 生物质发电、制浆和制液面肥,相互结合的生产方法 Biomass power generation, pulp and liquid manure system, combined with each other production methods |
| 08/06/2014 | CN103964651A 对废纸造纸行业的水污染物进行处理和循环利用的方法 Treatment and recycling of waste paper industry water pollutants |
| 08/05/2014 | US8796581 Plasma whirl reactor apparatus and methods of use |
| 08/05/2014 | US8795472 Process for generating a hydrocarbon feedstock from lignin |
| 07/31/2014 | WO2014116150A1 Method for producing high purity lignin |
| 07/30/2014 | CN103952942A 一种以沙柳为原料封闭循环制备植物成型用浆的方法 Salix is a kind of raw material preparation plant closed cycle pulp molding method |
| 07/30/2014 | CN102512937B 一种回收利用硫化氢废气的方法 A method for recovering the use of hydrogen sulfide emissions |
| 07/23/2014 | CN103938478A 一种水泥助磨剂以及利用造纸废液制作水泥助磨剂的方法 A cement grinding aids and methods of use of paper waste produced cement grinding aids |
| 07/23/2014 | CN102650109B 利用复合微生物将制浆黑液转化为含黄腐酸和氨基酸粉体的方法 The use of complex microbial conversion method pulping liquor containing fulvic acid and amino acid powders |
| 07/22/2014 | US8785808 Plasma whirl reactor apparatus and methods of use |
| 07/22/2014 | US8784608 Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper |
| 07/16/2014 | EP2753750A1 Process for treating hardwood black liquor and hardwood black liquor treated according to the process |
| 07/16/2014 | CN102316961B 甲醇的提纯方法和设备 Method and apparatus for the purification of methanol |
| 07/15/2014 | US8778135 Circular utilization method in pulping and papermaking processes with straw |
| 07/09/2014 | CN203700850U 棉短绒koh蒸煮制浆系统 Koh linter pulp digester system |
| 07/09/2014 | CN103911896A 一种常温常压电-催化湿式氧化处理棉浆粕黑液的方法 One kind of normal temperature piezoelectric - catalytic wet oxidation method of black liquor |
| 07/09/2014 | CN103908829A 一种造纸废水处理装置及工作方法 A waste water treatment plant and working methods of the paper |
| 07/08/2014 | US8771464 Method for separating lignin from black liquor |
| 07/08/2014 | CA2723230C Direct synthesis of aqueous hydrogen peroxide solution at the site of a paper mill |
| 07/02/2014 | CN103898793A 一种檀皮制浆集中清洁处理工艺 Tan leather one kind of centralized cleaning pulping process |
| 07/02/2014 | CN103898786A 一种生物质原料的综合利用工艺 A comprehensive utilization of raw materials craft materials |
| 07/02/2014 | CN103898785A 一种生物质原料的综合利用工艺 A comprehensive utilization of raw materials craft materials |
| 07/01/2014 | US8764937 Installation and method for conversion of paper residue into a mineral product |
| 06/28/2014 | CA2829438A1 Lignin precipitation methods |
| 06/26/2014 | WO2014096527A1 Method of treating primary effluent of a pulp, paper or plywood mill by introducing exhaust gas comprising carbon dioxide |
| 06/26/2014 | WO2014094104A1 Processes for recovery of derivatives of native lignin |
| 06/24/2014 | US8759498 Compositions comprising lignin |
| 06/24/2014 | US8758556 Composition for inhibiting calcium salt scale formation |
| 06/19/2014 | WO2014090609A1 Use of sodium dithionite in a cellulose pulping process |
| 06/17/2014 | US8753477 BCTMP filtrate recycling system and method |
| 06/12/2014 | WO2014086049A1 Method for removing active residual alkali from lime mud after alkali recovery and caustic wash |
| 06/11/2014 | EP2740714A1 Fluid purification system |
| 06/04/2014 | CN103842582A Process for treating hardwood black liquor and hardwood black liquor treated according to the process |
| 06/04/2014 | CN102587187B Alkali recovery method for by-producing activated carbon and white carbon black by using paper making black liquid |
| 06/04/2014 | CN102220721B Method for water conservation and scale prevention in pulping of grass fiber raw materials |
| 06/04/2014 | CN101798771B Method and system to generate steam in a digester plant of a chemical pulp mill |
| 05/28/2014 | CN103827618A 包括压力吸收柔性结构的气化反应器 Including gasification reactor pressure absorbing flexible structure |
| 05/28/2014 | CN103816688A 一种外流管式降膜蒸发装置 One kind of outflow tube falling film evaporation apparatus |
| 05/28/2014 | CN103816687A 一种造纸黑液蒸发用自汽提式板式蒸发装置 A papermaking black liquor evaporation with self-stripping Plate evaporation plant |