公开(公告)号：WO00042251A1

公开(公告)日：2000-07-20

申请号：PCT/FI2000/000009

申请日：2000-01-07

IPC: D21C11/00 ,  D21C11/10 ,  D21C11/04 ,  D21C11/12

CPC classification number: D21C11/0092 ,  D21C11/106 ,  Y02P40/44

Abstract: The present invention relates to a method of reducing the silicon content of green liquor in a pulp mill by means of a compound containing a divalent or trivalent cation, in which method waste liquor containing cooking chemicals of an alkaline pulping process and silicon is concentrated in order to increase the dry solids content of the liquor, and the concentrated waste liquor is combusted in order to produce smelt and the smelt is dissolved in order to form green liquor. An essential characteristic of the invention is that a compound containing a divalent or trivalent cation is added into waste liquor so that the cation-containing compound reacts in the smelt with silicon in order to form a compound containing a cation and silicon, which compound is separated from the green liquor.

Abstract translation: 本发明涉及一种通过含有二价或三价阳离子的化合物来减少纸浆厂中的绿液中硅含量的方法，其中含有碱性制浆工艺和硅的蒸煮化学品的废液按顺序浓缩 以增加液体的干固体含量，并且浓缩的废液燃烧以产生熔融物，并且熔融物溶解以形成绿液。 本发明的一个本质特征是将含有二价或三价阳离子的化合物加入到废液中，使得含阳离子的化合物在熔融物中与硅反应，以便形成含有阳离子和硅的化合物，该化合物被分离 从绿色酒。

公开(公告)号：WO00017444A1

公开(公告)日：2000-03-30

申请号：PCT/US1999/022271

申请日：1999-09-24

IPC: D21C3/02 ,  D21C11/00 ,  D21C11/04 ,  D21C11/12

CPC classification number: D21C11/0042 ,  D21C3/02 ,  D21C11/0007 ,  D21C11/0085

Abstract: A novel pulping process has been discovered whereby acid is added to the black liquor mixture. The acid renders the lignin insoluble thus enabling it to be separated from the black liquor. The invention obviates the need for a recovery boiler which burns the sugars and the lignin. Additionally, sodium salts are precipitated out of the process. Sodium carbonate from outside sources is used in the novel process.

Abstract translation: 已经发现了一种新的制浆方法，其中将酸加入到黑液混合物中。 酸使木质素不溶，从而使其能够与黑液分离。 本发明消除了对燃烧糖和木质素的回收锅炉的需要。 此外，钠盐沉淀出该过程。 在新颖的工艺中使用来自外部来源的碳酸钠。

公开(公告)号：WO9955627A8

公开(公告)日：2000-01-27

申请号：PCT/US9908549

申请日：1999-04-26

Applicant: NALCO CHEMICAL CO

Inventor： YANG SHUNONG ,  MCCOY WILLIAM F

IPC: C02F1/50 ,  A01N59/00 ,  C02F1/76 ,  C02F1/78 ,  D21C11/00

CPC classification number: C02F1/78 ,  C02F1/766

Abstract: Stable oxidizing biocide formulations containing bromine are provided for biofouling control in industrial water systems. The formulations contain at least one stable oxidizing bromine compound that is prepared from at least one oxidizing chemical reagent, at least one bromine source and at least one bromine or halogen stabilizer. The resulting products are a mixture of stable oxidizing bromine compounds that can be used as a primary or secondary biocide in an industrial water system.

Abstract translation: 提供含有溴的稳定的氧化杀生物剂配方用于工业水系统中的生物污垢控制。 制剂含有至少一种稳定的氧化性溴化合物，其由至少一种氧化化学试剂，至少一种溴源和至少一种溴或卤素稳定剂制备。 所得产物是稳定的氧化性溴化合物的混合物，其可用作工业水系统中的一级或二级杀生物剂。

公开(公告)号：WO99062818A1

公开(公告)日：1999-12-09

申请号：PCT/JP1999/002786

申请日：1999-05-27

IPC: C01B17/34 ,  C25B1/00 ,  C25B11/03 ,  D21C11/00 ,  D21C11/04

CPC classification number: C01B17/34 ,  D21C11/0057 ,  D21C11/04

Abstract: A method for producing a polysulfide which comprises introducing a solution containing a polysulfide ion to an anode chamber of an electrolysis vessel having an anode chamber equipped with a porous anode having a physically continuous, three dimensional network structure and being made of nickel at least with respect to the surface thereof, a cathode chamber equipped with a cathode and a diaphragm separating the anode and the cathode chambers, and subjecting the solution to electrolytic oxidation, to thereby produce a polysulfide ion. According to this method, a digesting liquor containing a polysulfide ion in a high concentration can be produced from a white liquor in a pulp production process with almost no by-production of thiosulfate ion, with high selectivity and with a low consumption of electric power.

Abstract translation: 一种生产多硫化物的方法，包括将含有多硫化物离子的溶液引入到具有阳极室的电解容器的阳极室中，所述阳极室装备有具有物理连续的三维网状结构的多孔阳极，至少相对于镍 其表面上装有阴极和分隔阳极和阴极室的隔膜，并使溶液进行电解氧化，从而产生多硫化物离子。 根据该方法，可以从纸浆生产过程中的白液中产生含有高浓度多硫离子的消化液，几乎不产生硫代硫酸根离子，具有高选择性和低功耗。

公开(公告)号：WO99051810A1

公开(公告)日：1999-10-14

申请号：PCT/US1999/005205

申请日：1999-03-10

IPC: D21C9/06 ,  D21C9/02 ,  B01D24/32 ,  B01D33/04 ,  B01D33/46 ,  D06B5/02 ,  D06B5/14 ,  D21C11/00

CPC classification number: D21C9/06 ,  Y10S210/928

Abstract: An aqueous slurry containing dissolved solids and a high concentration of suspended solids is positioned as a mat (3) between a pair of porous endless belts (2, 4) to provide a composite structure which is then moved through a treating zone (6) and subjected to alternate stages of compression and relaxation. The compression and relaxation are achieved by passsing the composite structure over a series of spaced rolls (7-12). A liquid stream (24) containing a high concentration of dissolved solid is cascaded over the mat in a countercurrent fashion so that the dissolved solids of the liquid stream are dissolved in the aqueous phase of the mat when the mat is subject to relaxation. The mat containing the increased concentration of dissolved solids and suspended solids is then compacted and the solid residue (39) is landfilled. The liquid stream (31) being discharged from the treating zone and containing a depleted concentration of dissolved solids is recirculated for use in a pulp/papermaking operation.

Abstract translation: 将含有溶解的固体和高浓度悬浮固体的含水浆料定位为在一对多孔环形带（2,4）之间的垫（3），以提供复合结构，然后移动通过处理区（6）和 经受压缩和放松的替代阶段。 通过在一系列间隔的辊（7-12）上传送复合结构来实现压缩和松弛。 含有高浓度溶解固体的液体流（24）以逆流方式层叠在垫上，使得当垫被松弛时，液体流的溶解固体溶解在垫的水相中。 然后将含有增加的溶解固体和悬浮固体浓度的垫压实，并将固体残余物（39）填埋。 从处理区排出并含有贫化浓度的溶解固体的液流（31）被再循环用于纸浆/造纸操作。

公开(公告)号：WO9901607A3

公开(公告)日：1999-06-24

申请号：PCT/DE9801694

申请日：1998-06-19

Applicant: CALL KRIMHILD ,  CALL HANS PETER

Inventor： CALL HANS-PETER

IPC: C02F1/72 ,  C07B33/00 ,  C10G1/00 ,  D21C5/00 ,  D21C5/02 ,  C12N9/00 ,  C02F3/02 ,  C08H5/02 ,  C08L97/02 ,  C09J197/00 ,  D21C11/00

CPC classification number: C10G1/00 ,  C02F1/72 ,  C07B33/00 ,  D21C5/005 ,  D21C5/027 ,  Y02W30/648

Abstract: Enzymatic oxidation system with enzymatic effect-enhancing compounds for use inter alia in the treatment of wood pulp waste waters in the paper industry and other industrial branches, in the production of lignin solutions or gels, corresponding binders/adhesives and wooden composite materials, and as enzymatic deinking system and color stripping system for used paper, oxidation system in organic synthesis and coal hydrogenation, containing: a) at least one oxidation catalyst, b) at least one oxidizing agent, c) at least one mediator selected from the group of the hydroxylamines, hydroylamine derivatives, hydroxamic acids, hydroxamic acid derivatives, of the aliphatic, cycloaliphatic, heterocyclic or aromatic compounds, containing at least on N-hydroxy, oxime, N-oxi or N,N'-dioxi function, and/or at least one mediator from the group of the amides such as hydrazides or 1,2,4-triazolidin-3,5-dione (urazoles) and/or at least one mediator from the group of the imides such as hydantoin and/or at least one mediator from the group of the oxocarbons. A mediation intensifier can also be used.

Abstract translation: 有用于在关节内的治疗中使用的酶增强活性的化合物酶促氧化系统 造纸工业的制浆废水，对其他行业的废水处理利用，用于生产木质素溶液或相应的粘合剂/粘合剂的凝胶和木质复合材料的用途，用作酶法Deinksystem和Farbestoffentfärbesystem（漂白系统/“去色”系统） 用作有机合成以及在煤的液化使用氧化系统废纸，其包含：a）至少一种氧化催化剂，b）至少一种氧化剂，选自羟胺，羟胺衍生物，异羟肟酸，异羟肟酸衍生物的选择c）至少一种介质， 所述脂族，脂环族，杂环或含有至少一个N-羟基，肟，N-氧代或N，N'-Dioxi功能芳族化合物和/或选自酰胺，酰肼或1的至少一种介质， 2,4-三唑烷-3,5-二酮（尿唑 e）和/或选自酰亚胺，如乙内酰脲和/或选自碳氧化物的至少一种介体的至少一种介体。 也可以使用中介放大器。

公开(公告)号：WO99010595A1

公开(公告)日：1999-03-04

申请号：PCT/FI1998/000635

申请日：1998-08-18

IPC: C07C51/09 ,  D21C3/20 ,  D21C11/00 ,  D21C3/04

CPC classification number: D21C11/00 ,  C07C51/09 ,  D21C3/20 ,  C07C53/02

Abstract: The invention relates to a method for removing chemically bound formic acid from a material containing the same, in the presence of free formic acid. The method is characterized in that chemically bound formic acid is allowed to react to free formic acid at a normal pressure, at a temperature of less than 100 DEG C, the initial content of free formic acid being about 3 to 20 %. The reaction time is typically 0.5 to 4 hours. The material to be treated may be, for instance, material, obtained from a formic-acid-based pulp cooking process, containing cellulose and/or lignin.

Abstract translation: 本发明涉及一种在游离甲酸存在下从含有它们的物质中除去化学键合的甲酸的方法。 该方法的特征在于使化学键合的甲酸在常压下，在小于100℃的温度下与游离甲酸反应，游离甲酸的初始含量为约3至20％。 反应时间通常为0.5〜4小时。 待处理的材料可以是例如由含有纤维素和/或木质素的基于甲酸的纸浆蒸煮工艺获得的材料。

公开(公告)号：WO1998054400A1

公开(公告)日：1998-12-03

申请号：PCT/US1997009418

申请日：1997-05-29

Applicant: BOUNTIFUL APPLIED RESEARCH CORPORATION ,  EL SHALL, Hassan

Inventor： BOUNTIFUL APPLIED RESEARCH CORPORATION

IPC: D21C11/00

CPC classification number: D21C11/0085 ,  D21C11/0007 ,  Y10S210/928

Abstract: A water soluble, surface active, polymeric agent is mixed with digestion liquor, preferably with an additional surface active defoamer coagulant agent prior to or during acidification of the alkaline digestive liquor. This results in an easily separable, non-gelatinous, non-gummy, coagulated lignin as a solids, particulate fraction that tends to float on a clarified liquid fraction containing recoverable salts. The solids fraction and the liquid frictions are easily separated, one from the other, by a gravity separation step.

Abstract translation: 在碱性消化液酸化之前或期间，将水溶性表面活性聚合物与消化液混合，优选与另外的表面活性消泡剂凝结剂混合。 这导致容易分离，非凝胶状，非胶状，凝固的木质素作为固体，倾向于漂浮在含有可回收盐的澄清液体馏分上的颗粒级分。 通过重力分离步骤，固体分数和液体摩擦容易地彼此分离。

公开(公告)号：WO98032915A1

公开(公告)日：1998-07-30

申请号：PCT/CA1998/000030

申请日：1998-01-23

IPC: B01J43/00 ,  D21C11/00 ,  D21C11/04

CPC classification number: D21C11/005 ,  B01J43/00 ,  D21C11/04 ,  Y10S210/928

Abstract: 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.

Abstract translation: 包含在离子阻滞单元（9）中的使用两性离子交换树脂（也称为“蛇笼式聚电解质”树脂）的方法将牛皮纸白液（8）分离成富含硫化物（12）和苛性碱 10）组件。 富硫化物组分（12）可用于制浆初期（1），在制浆前对木屑进行预处理，或者可用于制备富含多硫化物的液体。 苛性碱组分（10）可用于最终脱木质阶段，代替氢脱氧木质素，pH调节和烟道气洗涤中的氢氧化钠或白液。 可以使用相同的系统将绿色（6）和多硫化物液体（8a）分离成富含硫化物和不含硫化物的组分，并从硫化物污染的其他磨碎碱流中除去硫化物。

公开(公告)号：WO1997042371A1

公开(公告)日：1997-11-13

申请号：PCT/FI1997000273

申请日：1997-05-06

Applicant: AHLSTROM MACHINERY OY ,  IIVONEN, Mauno ,  KOSKINEN, Kari ,  KURKIO, Jarl ,  RÅMARK, Hannu ,  TURUNEN, Esko

Inventor： AHLSTROM MACHINERY OY

IPC: D21C11/00

CPC classification number: D21C11/0007

Abstract: The present invention relates to a method and apparatus for intensifying an alkaline pulping process in which a soap-containing fraction is separated from black liquor and treated further in order to separate fibers from the fraction prior to further treatment of the soap-containing fraction by evaporation or by cooking it to form tall oil.

Abstract translation: 本发明涉及一种强化碱性制浆工艺的方法和装置，其中含皂部分与黑液分离并进一步处理，以便在通过蒸发进一步处理含皂部分之前将纤维与馏分分开 或通过烹饪形成妥尔油。