公开(公告)号：US4292043A

公开(公告)日：1981-09-29

申请号：US113893

申请日：1980-01-21

Applicant: Gabriel Denecker ,  Domien Sluyts ,  Roland Putseys ,  Willy Van Herck ,  Ludo Claes ,  Georg Spott

Inventor： Gabriel Denecker ,  Domien Sluyts ,  Roland Putseys ,  Willy Van Herck ,  Ludo Claes ,  Georg Spott

IPC: C01C1/24 ,  C02F1/04 ,  C02F1/58 ,  C02F9/00 ,  B01D9/02

CPC classification number: C02F1/586 ,  C01C1/24 ,  C02F1/04 ,  C02F2101/101 ,  C02F2101/16

Abstract: A process for the working up of ammonium sulphate-containing effluent which is contaminated with organic compounds and optionally also ammonium nitrate, comprising evaporating the effluent to produce water vapor which is removed, a concentrated liquid and a crystal suspension, thickening the suspension to obtain solid ammonium sulphate which is removed and liquid which is recycled to an earlier stage, subjecting the concentrated liquid from evaporation to an optional vacuum cooling crystallization to obtain water vapor which is removed and a crystal suspension from which a concentrated liquid is separated off, advancing the concentrated liquid from the evaporation stage or from the vacuum cooling crystallization stage to a crystallizer, introducing ammonia into the crystallizer to decrease the solubility of the ammonium sulphate, thickening the ammoniacal crystal suspension to obtain ammonium sulphate solids which are removed and ammoniacal mother liquor which is advanced to a distillation step for recovery of ammonia.

Abstract translation: 用于处理含有硫酸铵的流出物的方法，其被有机化合物和任选的硝酸铵污染，包括蒸发流出物以产生除去的水蒸气，浓缩液体和结晶悬浮液，使悬浮液变稠以获得固体 去除的硫酸铵和再循环到较早阶段的液体，将来自蒸发的浓缩液体进行任选的真空冷却结晶以获得除去的水蒸汽和从其中分离出浓缩液体的晶体悬浮液，使浓缩的 从蒸发阶段或从真空冷却结晶阶段到结晶器的液体，将氨引入结晶器以降低硫酸铵的溶解度，使氨结晶悬浮液变稠，得到去除的硫酸铵固体，并将先进的氨母液 到一个蒸馏酒 氨的回收步骤。

公开(公告)号：US06761828B2

公开(公告)日：2004-07-13

申请号：US10096558

申请日：2002-03-13

Applicant: Jürgen Heuser ,  Werner Verhoeven ,  Domien Sluyts ,  Gabriel Denecker

Inventor： Jürgen Heuser ,  Werner Verhoeven ,  Domien Sluyts ,  Gabriel Denecker

IPC: C02F168

CPC classification number: C01C1/24 ,  C02F1/70 ,  C02F2101/163 ,  C02F2101/38 ,  Y10S210/903

Abstract: Nitrate-containing (contaminated) solutions are reduced with SO2 gas in the presence of an at least equimolar amount of NH4+ or ammonium salt.

Abstract translation: 在存在至少等摩尔量的NH 4 +或铵盐的情况下，用SO 2气体还原含硝酸盐（污染的）溶液。

公开(公告)号：US4986742A

公开(公告)日：1991-01-22

申请号：US395292

申请日：1989-08-17

Applicant: Gabriel Denecker ,  Werner Verhoeven ,  Joel Leuridan ,  Domien Sluyts

Inventor： Gabriel Denecker ,  Werner Verhoeven ,  Joel Leuridan ,  Domien Sluyts

IPC: C01G23/00 ,  C01G23/053 ,  C22B3/38 ,  C22B34/12

CPC classification number: C01G23/001 ,  C01G23/0532 ,  C22B3/0043 ,  C22B3/0052 ,  C22B3/0082 ,  C22B3/0087 ,  C22B3/0091 ,  C22B34/125 ,  Y02P10/234

Abstract: High-grade titanium dioxide is produced by(a) reacting ilmenite or titanium-containing slag with sulfuric acid,(b) dissolving the material from (a) with water or dilute sulfuric acid,(c) separating insolubles from (b) to obtain a black solution containing titanyl sulfate and foreign metal salts,extracting titanyl sulfate from the black liquor with sulfuric acid and an organic medium containing an organophosphorus compound, separating the foreign metal salts in an aqueous extract phase, recovering titanyl sulfate from the organic extract phase, andhydrolyzing the titanyl sulfate to titanium oxide hydrate.

公开(公告)号：US5786445A

公开(公告)日：1998-07-28

申请号：US724931

申请日：1996-10-02

Applicant: Claus Wulff ,  Gottfried Zaby ,  Thomas Bamberger ,  Klemens Kohlgruber ,  Hugo Obermann ,  Stefaan De Vos ,  Gabriel Denecker ,  Johan Vaes ,  Tony Van Osselaer

Inventor： Claus Wulff ,  Gottfried Zaby ,  Thomas Bamberger ,  Klemens Kohlgruber ,  Hugo Obermann ,  Stefaan De Vos ,  Gabriel Denecker ,  Johan Vaes ,  Tony Van Osselaer

IPC: F26B11/14 ,  B29B13/02 ,  B29B13/06 ,  B29K55/02 ,  B29K69/00 ,  F26B5/04 ,  F26B17/20 ,  C08F6/00

CPC classification number: B29B13/065 ,  F26B17/20 ,  F26B5/041

Abstract: The invention relates to a process for drying polymeric powders and polymeric agglomerates, in particular thermoplastic aromatic polycarbonate or other thermoplastic polymers such as, for example, acrylonitrile-butadiene-styrene copolymer, in the melt, whereby thermoplastic polymeric powders or polymeric agglomerates containing water or solvent or both are freed from adhering moisture and contained solvent, accompanied by melting, in an apparatus provided with rotating baffles for cleaning the walls of the apparatus and for distribution and transport of the material being dried, by heat input through the walls or through the rotating baffles or both as well as by heat input as a result of shearing action. The process of drying and that of melting for the subsequent granulation are thereby combined.

Abstract translation: 本发明涉及在熔体中干燥聚合物粉末和聚合物附聚物，特别是热塑性芳族聚碳酸酯或其它热塑性聚合物例如丙烯腈 - 丁二烯 - 苯乙烯共聚物的方法，由此将含有水或聚合物的热塑性聚合物粉末或聚合物附聚物 溶剂或两者在具有用于清洁设备的壁的旋转挡板的设备中并且随着熔化而被包含溶剂并且包含溶剂，并且通过壁的热输入或通过壁的热输入以及用于分配和输送待干燥的材料 旋转挡板或两者以及作为剪切作用的结果的热输入。 由此组合干燥过程和熔化后续制粒。

公开(公告)号：US4780540A

公开(公告)日：1988-10-25

申请号：US10462

申请日：1987-02-03

Applicant: Gabriel Denecker ,  Guido Lahousse ,  Henri Vandebroek ,  Pol Balmelis

Inventor： Gabriel Denecker ,  Guido Lahousse ,  Henri Vandebroek ,  Pol Balmelis

IPC: C10C1/08 ,  C07C67/00 ,  C07C209/00 ,  C07C209/62 ,  C07C211/46 ,  C07D277/72

CPC classification number: C07D277/72

Abstract: Tar-like residues from the preparation of 2-mercaptobenzothiazole can be used by heating them at temperatures above 200.degree. C. for at least 1 hour and separating off the aniline and benzothiazole thereby formed.

Abstract translation: 通过在高于200℃的温度下加热它们至少1小时，可以使用2-巯基苯并噻唑制备的焦油状残留物，从而形成苯胺和苯并噻唑。

公开(公告)号：US5237046A

公开(公告)日：1993-08-17

申请号：US844211

申请日：1992-03-02

Applicant: Manfred Schmidt ,  Gabriel Denecker ,  Wolfgang Jakob ,  Wolfgang Arlt

Inventor： Manfred Schmidt ,  Gabriel Denecker ,  Wolfgang Jakob ,  Wolfgang Arlt

IPC: C08G75/0254 ,  C08G75/0259 ,  C08G75/06

CPC classification number: C08G75/0254 ,  C08G75/0259

Abstract: The invention relates to a process for stabilizing the molecular weight of high molecular weight, optionally branched polyarylene sulfides prepared by reaction of aromatic dihalogen compounds and, optionally, aromatic trihalogen or tetrahalogen compounds and, optionally, polymer-chain-terminating monomers with alkali metal sulfides and/or alkali metal hydrogen sulfides at elevated temperature in aprotic polar solvents, characterized in that, after the desired molecular weight has been reached, alkali metal sulfides and/or alkali metal hydrogen sulfides present in excess are at least partly reacted with acids to form the alkali metal salts of the acids and hydrogen sulfide.

Abstract translation: 本发明涉及通过芳族二卤化合物和任选的芳族三卤素或四卤素化合物和任选的聚合物链终止单体与碱金属硫化物的反应制备的高分子量，任选支化的聚亚芳基硫化物的分子量的稳定化方法 和/或碱金属氢硫化物在高温下在非质子极性溶剂中，其特征在于，在达到所需分子量之后，过量存在的碱金属硫化物和/或碱金属硫化氢至少部分地与酸反应形成 酸和硫化氢的碱金属盐。

公开(公告)号：US4762931A

公开(公告)日：1988-08-09

申请号：US934329

申请日：1986-11-24

Applicant: Gabriel Denecker ,  Domien Sluyts ,  Jean-Marie Biot ,  Tony van Osselaer ,  Jan de Roos ,  Pol Bamelis

Inventor： Gabriel Denecker ,  Domien Sluyts ,  Jean-Marie Biot ,  Tony van Osselaer ,  Jan de Roos ,  Pol Bamelis

IPC: C02F1/26 ,  C02F9/00 ,  C07D277/80 ,  C07D277/36

CPC classification number: C07D277/80 ,  C02F1/26 ,  C02F2103/36

Abstract: An improved work-up of aqueous mother liquors which originate from the oxidative preparation of benzothiazolylsulphenamides and which contain unreacted amine or a low-boiling alcohol employed as solubilizer, or both, the work-up being carried out in such a fashion that the mother liquor is saturated by additives until two phases form, the phases are separated from one another, the aqueous phase is extracted with further alcohol or amine, amine, alcohol and the extracted components are isolated from the combined organic phases, and amine or alcohol dissolved in the aqueous phase is removed therefrom by distillation.

Abstract translation: 一种来源于苯并噻唑啉类烟酰胺的氧化制剂并含有未反应的胺或作为增溶剂的低沸点醇或两者的水性母液的后处理，其处理方式使得母液 被添加剂饱和，直到形成两相，相分离，水相用另外的醇或胺，胺，醇萃取，萃取的组分从合并的有机相中分离出来，胺或醇溶于 水相通过蒸馏除去。