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61.发明公开A PROCESS FOR THE SEPARATION OF SULPHIDES FROM PULPING LIQUORS USING AMPHOTERIC RESINS 失效进行分离的方法从KOCH碱硫化物使用两性RESINS
公开(公告)号：EP0954632A1
公开(公告)日：1999-11-10
申请号：EP98900833.0
申请日：1998-01-23
发明人： PALEOLOGOU, Michael , THOMPSON, Rokhsareh , BERRY, Richard, McKinnon , BROWN, Craig, J. , SHEEDY, Michael
CPC分类号： D21C11/005 , B01J43/00 , D21C11/04 , Y10S210/928
摘要： A process using an amphoteric ion-exchange resin, also known as a 'snake-cage polyelectrolyte' resin, contained in an ion retardation unit (9) separates kraft white liquor (8) into sulphide-rich (12) and caustic-rich (10) components. The sulphide-rich component (12) can be used in the initial stage of pulping (1), pretreatment of wood chips prior to pulping, or it can be used to make polysulphide-rich liquor. The caustic-rich component (10) can be used in the final delignification phase, in place of sodium hydroxide or white liquor in oxygen delignification, pH adjustment and flue gas scrubbing. The same system can be used to separate green (6) and polysulphide liquors (8a) into sulphide-rich and sulphide-poor components, and to remove sulphide from other mill caustic streams contaminated with sulphide.
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62.发明公开
公开(公告)号：EP0857233A1
公开(公告)日：1998-08-12
申请号：EP96933295.0
申请日：1996-10-18
CPC分类号： D21G1/0286 , D21F5/021 , D21F5/06
摘要： The invention overcomes the problem of paper edge overdrying during the paper drying process on paper machine drying cylinders. It comprises applying a thin ceramic coating onto the circumferential exterior surface of the cylinder near the cylinder edges, thereby forming a thermal barrier coating which decreases paper drying rate at said edges and reduces or eliminates paper edge overdrying.
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63.发明公开ELECTROMEMBRANE PROCESSES FOR THE TREATMENT OF KRAFT MILL ELECTROSTATIC PRECIPITATOR CATCH 无效电热膜法治疗望尘莫及静电分离器的马达板厂
公开(公告)号：EP0799086A1
公开(公告)日：1997-10-08
申请号：EP95940924.0
申请日：1995-12-20
发明人： PALEOLOGOU, Michael , BERRY, Richard, McKinnon , THOMPSON, Rokhsareh , WEARING, James, Theodore
CPC分类号： B01D61/44 , B01D61/445 , D21C11/066
摘要： Alkali metal hydroxide and acid are recovered from alkali metal salts by water-splitting. A two-compartment cell employs monovalent anion-selective membranes and bipolar membranes; a three-compartment cell (1) employs monovalent anion-selective membranes (3), cation-selective membranes (4) and bipolar membranes (2a, 2b). A particular application is the conversion of the Electrostatic Precipitator Catch of the recovery boiler of coastal and/or closed-cycle kraft pulp mill with reuse of the sodium/potassium hydroxide and sulfate, depleted in chloride.
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64.发明授权DETERMINATION AND CONTROL OF EFFECTIVE ALKALI IN KRAFT LIQUORS BY IR SPECTROSCOPY 失效确定并通过红外光谱法的手段控制硫酸盐法制浆的解决方案的有效碱
公开(公告)号：EP0649531B1
公开(公告)日：1996-10-02
申请号：EP93915594.1
申请日：1993-07-06
CPC分类号： D21C3/02 , D21C7/12 , G01N21/3577 , G01N33/34
摘要： A direct monitoring and control method is provided for on-line measurement of effective alkali, carbonate, sulfate and thiosulfate concentrations in process liquors for the production of kraft pulp. The control method eliminates frequent sampling, and the need for frequent equipment maintenance. The method includes the steps of withdrawing samples of a liquor from the kraft manufacturing process, subjecting the samples to infrared spectrophotometry at predetermined wave numbers to produce peak-absorbance measurements relative to a background spectrum of water, determining peak absorbance for different alkali concentrations, correlating relationships between the peak-absorbance measurements of samples with the peak absorbance for different alkali concentrations to determine optimum effective alkali in the samples, and controlling at least one process parameter to obtain effective alkali of the liquor.
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65.发明公开BLEACHING OF LIGNOCELLULOSIC MATERIAL WITH DIOXIRANES 失效VERFAHREN ZUM BLEICHEN VON LIGNOZELLULOSEHALTIGEM MATERIAL MIT DIOXIRANEN。
公开(公告)号：EP0515362A1
公开(公告)日：1992-12-02
申请号：EP90903735.0
申请日：1990-02-16
发明人： LEE, Chung-Li
IPC分类号： D21C9
摘要： Procédé de blanchiment de pâte de cellulose chimique à l'aide d'une dioxirane permettant l'obtention d'une pâte de bonne qualité et la réduction des effets nuisibles sur l'environnement. On place la pâte de cellulose chimique en contact avec la dioxirane accompagnée facultativement d'agents de blanchiment, en combinaison ou en séquence.
摘要翻译： 用二氧杂环烷漂白化学纸浆的过程产生质量好的纸浆，并减少了环境问题。 化学纸浆与二环氧乙烷接触，并且有或没有已知的漂白剂，组合或顺序。
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66.发明公开Method and apparatus for the rapid consolidation and/or drying of porous webs 失效用于快速合并和/或干燥多孔织物的方法和装置
公开(公告)号：EP0296730A3
公开(公告)日：1989-08-23
申请号：EP88305140.1
申请日：1988-06-06
发明人： Sparkes, Donald G.
CPC分类号： D21F3/0281 , D21F5/02 , D21F5/024 , D21F5/048
摘要： There is taught a method and apparatus for a drying of a continuous moist web (18) such as paper wherein the web is passed through a nip formed of two moving surfaces (10,16), one of these surfaces (10) being a relatively impermeable material heated to a temperature of at least 120°C, the other surface (16) being formed of a relatively porous material and being maintained at a temperature below 100°C, while maintaining a pressure on the moist web sufficient to prevent blowoff.
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67.发明公开Alkaline-peroxide-oxygen treatment for unbleached and chlorinated chemical pulps 失效用于未漂白和氯化化学粉末的碱性 - 过氧化物 - 氧化处理
公开(公告)号：EP0206560A3
公开(公告)日：1988-07-20
申请号：EP86304123
申请日：1986-05-30
IPC分类号： D21C09/10
CPC分类号： D21C9/10
摘要： There are provided improvements relating to the delignification and/or the bleaching of a chemical pulp wherein the cellulosic material is simultaneously treated with an alkali compound, a peroxygen compound and an oxygen gas at partial pressure in the presence of a viscosity protecting catalyst.
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