公开(公告)号：US20050029116A1

公开(公告)日：2005-02-10

申请号：US10897430

申请日：2004-07-23

Applicant: Andreas Bulan ,  Michael Grossholz ,  Volker Michele ,  Hans-Joachim Brockhaus ,  Hans-Dieter Pinter ,  Fritz Gestermann ,  Rainer Weber

Inventor： Andreas Bulan ,  Michael Grossholz ,  Volker Michele ,  Hans-Joachim Brockhaus ,  Hans-Dieter Pinter ,  Fritz Gestermann ,  Rainer Weber

IPC: C25B9/08 ,  C25C1/00

CPC classification number: C25B9/08

Abstract: The present invention describes an electrochemical cell, comprising at least an anode half-cell with an anode, a cathode half-cell with a cathode, and an ion exchange membrane arranged between the anode half-cell and the cathode half-cell, the anode and/or the cathode is a gas diffusion electrode. And a gap is provided between the gas diffusion electrode and the ion exchange membrane, and the half-cell with the gas diffusion electrode has an electrolyte feed and an electrolyte discharge as well as a gas inlet and a gas outlet. The electrochemical cell preferably has an electrolyte feed that is hermetically connected to the gap.

Abstract translation: 本发明描述了一种电化学电池，其至少包括具有阳极的阳极半电池，具有阴极的阴极半电池和布置在阳极半电池和阴极半电池之间的离子交换膜，阳极 和/或阴极是气体扩散电极。 并且在气体扩散电极和离子交换膜之间设置有间隙，并且具有气体扩散电极的半电池具有电解质进料和电解液排出以及气体入口和气体出口。 电化学电池优选地具有气密地连接到间隙的电解质进料。

公开(公告)号：US5411726A

公开(公告)日：1995-05-02

申请号：US188683

申请日：1994-01-31

Applicant: Andreas Bulan ,  Rainer Weber ,  Hans-Dieter Block ,  Hans-Heinrich Moretto

Inventor： Andreas Bulan ,  Rainer Weber ,  Hans-Dieter Block ,  Hans-Heinrich Moretto

IPC: C01B7/19 ,  C01B11/24 ,  C25B1/24

CPC classification number: C01B7/195 ,  C01B11/24

Abstract: The invention relates to a process for purifying industrial anhydrous hydrogen fluoride by means of oxygen difluoride.

Abstract translation: 本发明涉及一种通过二氟化氧净化工业无水氟化氢的方法。

公开(公告)号：US5366597A

公开(公告)日：1994-11-22

申请号：US67585

申请日：1993-05-27

Applicant: Andreas Bulan ,  Rainer Weber

Inventor： Andreas Bulan ,  Rainer Weber

IPC: C07C303/02 ,  C07C303/22 ,  C07C309/80 ,  C25B3/08

CPC classification number: C07C303/22 ,  C07C303/02 ,  C25B3/08

Abstract: The invention relates to a process for the preparation of perfluorobutylsulphonyl fluoride by electrochemical fluorination of butylsulphonyl fluoride, tetrahydrothiophene-1,1-dioxide (sulpholane), 2,5-dihydrothiophene-1,1-dioxide (sulpholene) or mixtures of these in hydrogen fluoride.

Abstract translation: 本发明涉及一种通过电化学氟化丁基磺酰氟，四氢噻吩-1,1-二氧化物（环丁砜），2,5-二氢噻吩-1,1-二氧化物（三环烯）或它们在氢气中的混合物制备全氟丁基磺酰氟的方法 氟化物。

公开(公告)号：US5250274A

公开(公告)日：1993-10-05

申请号：US824682

申请日：1992-01-21

Applicant: Norbert Lonhoff ,  Bernhard Spreckelmeyer ,  Hans-Dieter Block ,  Rainer Weber ,  Jost Halstenberg ,  Bernd Rosenow

Inventor： Norbert Lonhoff ,  Bernhard Spreckelmeyer ,  Hans-Dieter Block ,  Rainer Weber ,  Jost Halstenberg ,  Bernd Rosenow

IPC: C01G37/14 ,  C01G37/00

CPC classification number: C01G37/14

Abstract: The invention relates to a process for the production of sodium dichromate and sodium dichromate solutions by oxidative roasting of chrome ores under alkaline conditions, leaching of the furnace clinker obtained with water or an aqueous chromate-containing solution, adjustment of the pH to from 7 to 9.5, removal of the insoluble constituents by filtration, a sodium monochromate solution being obtained, conversion of the monochromate ions of this solution into dichromate ions by acidification and crystallization of sodium dichromate by concentration of this solution, characterized in that the acidification is carried out with carbon dioxide under pressure with removal of sodium hydrogen carbonate, the remaining solution is then very largely freed from sodium monochromate by cooling to a temperature below 10.degree. C. and filtration, any monochromate ions still present in the remaining solution are converted into dichromate ions by addition of an acid and the sodium monochromate filtered off is added to the sodium monochromate solution before conversion with carbon dioxide into a sodium dichromate solution.

Abstract translation: 本发明涉及一种通过在碱性条件下对铬矿进行氧化焙烧生产重铬酸钠和重铬酸钠溶液的方法，用水或含铬酸盐水溶液浸取得到的炉渣，将pH调节至7至 9.5，通过过滤除去不溶性成分，得到单色钠溶液，通过浓缩该溶液酸化并重结晶重铬酸钠，将该溶液的单色离子转化为重铬酸根离子，其特征在于酸化是用 二氧化碳在压力下除去碳酸氢钠，剩余的溶液然后通过冷却到低于10℃的温度非常大地从单色钠中除去并过滤，剩余溶液中仍然存在的任何单色离子被转化成重铬酸根离子 加入酸和过滤的单色钠 在将二氧化碳转化成重铬酸钠溶液之前，将f加入到单色钠溶液中。

公开(公告)号：US5181994A

公开(公告)日：1993-01-26

申请号：US625715

申请日：1990-12-11

Applicant: Norbert Lonhoff ,  Ludwig Schmidt ,  Hans-Dieter Block ,  Rainer Weber

Inventor： Norbert Lonhoff ,  Ludwig Schmidt ,  Hans-Dieter Block ,  Rainer Weber

IPC: C25B1/00 ,  B01J47/12 ,  C01G37/033 ,  C25B1/22 ,  C25B15/08 ,  C25C1/10

CPC classification number: C25C1/10 ,  C01G37/033 ,  C25B1/22

Abstract: A process for the production of chromic acid, comprisinga) dissolving ferrochrome in sulphuric acid, optionally with the addition of catholyte and/or anolyte overflow from the electrolysis,b) removing undissolved constituents by filtration,c) adding a reducing agent in a quantity more than equivalent to the quantity of iron(III) and chromium(IV) in the solution,d) precipitating chromium(III) hydroxide by raising the pH to about 4-6 by the addition of a base while maintaining the reducing conditions in the solution,e) separating the precipitated chromium hydroxide while maintaining the reducing conditions,f) working up the aqueous solution containing iron by oxidation; precipitating iron(III) hydroxide or iron(III) oxide and optionally isolating the sulphate in the solution as sodium sulphate, ammonium sulphate or calcium sulphate,g) dissolving the separated chromium hydroxide in chromic acid and optionally sulphuric acid where either a single solution in chromic acid is produced or two solutions are produced, one in chromic acid and another in sulphuric acid,h) separating the solution(s) from undissolved constituents andi) employing the chromium hydroxide solution in chromic acid as anolyte in the electrolytic production of chromic acid in an electrolytic cell divided by a membrane, and either using the same solution as catholyte in the electrolytic cell divided by a membrane or using the chromium hydroxide solution in sulphuric acid as catholyte in the electrolytic cell divided by a membrane, hydrogen and/or metallic chromium being deposited electrolytically at the cathode and/or chromium(II) ions being produced electrolytically.

Abstract translation: 一种生产铬酸的方法，包括：a）将铬铁溶解在硫酸中，任选地从电解中加入阴极电解液和/或阳极电解液溢出物，b）通过过滤除去未溶解的组分，c）加入一定量的还原剂 大于等于溶液中铁（III）和铬（IV）的量，d）通过加入碱将pH升高至约4-6，沉淀出氢氧化铬（III），同时保持其中的还原条件 e）在保持还原条件的同时分离沉淀的氢氧化铬，f）通过氧化处理含铁的水溶液; 沉淀氧化铁（III）或氧化铁（III），并任选地将溶液中的硫酸盐分离为硫酸钠，硫酸铵或硫酸钙，g）将分离的氢氧化铬溶解在铬酸和任选的硫酸中， 产生铬酸或产生两种溶液，一种在铬酸中，另一种在硫酸中，h）将溶液与未溶解的组分分离，以及i）在铬酸的电解生产中使用铬酸中的氢氧化铬溶液作为阳极电解液 在电解槽中除以膜，在电解槽中用阴离子电解液分隔膜或使用硫酸中的氢氧化铬溶液作为阴极电解液，在电解槽中被膜，氢和/或 阴极电解沉积的金属铬和/或电解产生的铬（II）离子。

公开(公告)号：US5128000A

公开(公告)日：1992-07-07

申请号：US680602

申请日：1991-04-01

Applicant: Helmut Klotz ,  Rainer Weber ,  Norbert Lonhoff ,  Hans-Dieter Block

Inventor： Helmut Klotz ,  Rainer Weber ,  Norbert Lonhoff ,  Hans-Dieter Block

IPC: C25B11/00 ,  C25B1/14 ,  C25B1/22 ,  C25B11/04 ,  C25B11/06 ,  C25B11/10 ,  C25D3/66

CPC classification number: C25B1/22 ,  C25B1/14 ,  C25B11/0478

Abstract: A dimensionally stable anode comprised ofa) an electrically conductive valve metalb) a conductive intermediate layer andc) an electrode coating of an electrocatalytically active substance, wherein the intermediate layer comprises one or more noble metals or their alloys which have been applied to the valve metal by deposition by electroplating from melts containing noble metal salts. This anode can be used in the production alkali metal dichromates and chromic acid by electrolysis of alkali metal monochromate and/or alkali metal dichromate solutions.

Abstract translation: 一种尺寸稳定的阳极，包括a）导电阀金属b）导电中间层和c）电催化活性物质的电极涂层，其中所述中间层包含一种或多种贵金属或其合金，其被施加到 通过从含有贵金属盐的熔体中电镀而沉积阀门金属。 该阳极可以通过电解碱金属单色和/或碱金属重铬酸盐溶液来生产碱金属重铬酸盐和铬酸。

公开(公告)号：US5071522A

公开(公告)日：1991-12-10

申请号：US663031

申请日：1991-02-25

Applicant: Helmut Klotz ,  Hans D. Pinter ,  Rainer Weber ,  Hans-Dieter Block ,  Norbert Lonhoff

Inventor： Helmut Klotz ,  Hans D. Pinter ,  Rainer Weber ,  Hans-Dieter Block ,  Norbert Lonhoff

IPC: C01G37/14 ,  C25B1/14 ,  C25B1/22

CPC classification number: C25B1/22

Abstract: A process for the preparation of chromic acid by the electrolysis of dichromate and/or monochromate solutions in electrolytic cells in which the anode chamber and the cathode chamber are separated by a cation exchanger membrane, the improvement wherein the chromic acid content of the solution in the anode chamber is periodically increased above that of a continuous operating state.

Abstract translation: 通过在阳极室和阴极室被阳离子交换膜分离的电解池中电解重铬酸盐和/或单色溶液来制备铬酸的方法，其中溶液的铬酸含量在 阳极室周期性地增加到高于连续工作状态的阳极室。

公开(公告)号：US5068015A

公开(公告)日：1991-11-26

申请号：US393733

申请日：1989-08-15

Applicant: Hans-Dieter Block ,  Norbert Lonhoff ,  Bernd Makowka ,  Helmut Klotz ,  Rainer Weber ,  Bernhard Spreckelmeyer

Inventor： Hans-Dieter Block ,  Norbert Lonhoff ,  Bernd Makowka ,  Helmut Klotz ,  Rainer Weber ,  Bernhard Spreckelmeyer

IPC: C25B1/00 ,  C25B1/22 ,  C25B15/08

CPC classification number: C25B1/22

Abstract: A process for the production of chromic acid by the multistage electrolysis of dichromate and/or monochromate solutions in two-compartment electrolysis cells, of which the anode and cathode compartments are separated by cation exchanger membranes, at temperatures in the range from 50.degree. to 90.degree. C., the dichromate and/or monochromate solutions being obtained by the digestion of chrome ores and leaching, the improvement wherein, optionally after the removal of aluminum, vanadium and other impurities, the monochromate solution obtained after leaching is adjusted at 20.degree. to 110.degree. C. to a pH value of from 8 to 12 by the addition and/or in situ formation of carbonate in a quantity of from 0.01 to 0.18 mol/l (for 300 to 500 g/l Na.sub.2 CrO.sub.4, converted with CO.sub.2 under pressure into a dichromate-containing solution, the dichromate-containing solution is introduced into the anode compartment of the electrolysis cell, a solution containing chromic acid, in which the molar ratio of Na ions to chromic acid is from 0.45:0.55 to 0.30:0.70, is electrolytically produced and the chromic acid is worked up by crystallization, washing and drying.

Abstract translation: 通过在两室电解池中的重铬酸盐和/或单色溶液的多级电解生产铬酸的方法，其中阳极和阴极室由阳离子交换膜分离，温度范围为50至90℃ ℃，通过铬矿和沥滤的消解获得的重铬酸盐和/或单色溶液，其中任选地在除去铝，钒和其它杂质之后，将浸出后获得的单色溶液调节至20℃至 通过加入和/或原位形成量为0.01至0.18mol / l的碳酸盐（对于300至500g / l的Na 2 CrO 4，在压力下用CO 2转化），将pH值为8至12 将含有重铬酸盐的溶液引入电解槽的阳极室中，将含有铬酸的溶液与Na离子的摩尔比 欧米酸为0.45:0.55-0.30:0.70，经电解生产，铬酸通过结晶，洗涤和干燥处理。

公开(公告)号：US09476131B2

公开(公告)日：2016-10-25

申请号：US14009457

申请日：2012-04-19

Applicant: Randolf Kiefer ,  Peter Woltering ,  Rainer Weber ,  Andreas Bulan ,  Michael Grossholz

Inventor： Randolf Kiefer ,  Peter Woltering ,  Rainer Weber ,  Andreas Bulan ,  Michael Grossholz

IPC: H01M8/0273 ,  H01M2/08 ,  C25B9/08 ,  C25B9/20

CPC classification number: C25B9/08 ,  C25B9/20 ,  H01M8/0273 ,  H01M8/0276 ,  H01M8/04283 ,  H01M8/08 ,  H01M8/083 ,  H01M2008/1095

Abstract: The invention relates to an electrochemical cell comprising an anode and a cathode compartment separated by a membrane, housing corresponding electrodes. The anode and the cathode compartments having external walls with frame-type flanged areas in the contact area of both compartments. The flanged areas having mounting bores marking an inner area and an outer area of the electrochemical cell a, gas-diffusion electrode resting on a support system, a porous material resting on the gas-diffusion electrode, and devices for the inlet and outlet of gas and electrolyte. At least one circumferential gasket frame is in the contact area of both compartments, between the frame-type flanged areas of the external walls of both compartments, said gasket resting on the membrane, with the porous material and the gas-diffusion electrode resting on the frame-type cathodic flanged area and the circumferential gasket frame overlapping in this area with the porous material and the gas-diffusion electrode.

Abstract translation: 本发明涉及一种电化学电池，包括由膜隔开的阳极和阴极室，容纳对应的电极。 阳极和阴极隔室在两个隔室的接触区域中具有带框架式法兰区域的外壁。 凸缘区域具有标记电化学电池单元a的内部区域和外部区域的安装孔，搁置在支撑系统上的气体扩散电极，搁置在气体扩散电极上的多孔材料以及用于气体入口和出口的装置 和电解质。 至少一个周向垫圈框架位于两个隔室的接触区域中，两个隔室的外壁的框架型凸缘区域之间，所述垫片搁置在膜上，多孔材料和气体扩散电极位于 框式阴极凸缘区域和圆周垫圈框架在该区域与多孔材料和气体扩散电极重叠。

公开(公告)号：US08173762B2

公开(公告)日：2012-05-08

申请号：US12829845

申请日：2010-07-02

Applicant: Pieter Ooms ,  Andreas Bulan ,  Johann Rechner ,  Rainer Weber ,  Marc Buts ,  Johan Vanden Eynde

Inventor： Pieter Ooms ,  Andreas Bulan ,  Johann Rechner ,  Rainer Weber ,  Marc Buts ,  Johan Vanden Eynde

IPC: C08G64/00 ,  C08G63/02

CPC classification number: C08G64/307

Abstract: A combined process for the preparation of polycarbonate from bisphenols and diaryl carbonates, the monophenol liberated being reacted again for the preparation of the diaryl carbonate and the alkali metal halide forming in the preparation of the diaryl carbonate being converted by electrochemical oxidation, optionally over a gas diffusion electrode, into chlorine and alkali hydroxide solution, the chlorine being recycled into the preparation of the phosgene and the alkali hydroxide solution being recycled into the preparation of the diaryl carbonate.

Abstract translation: 用于从双酚和碳酸二芳基酯制备聚碳酸酯的组合方法中，释放的单酚再次反应，用于制备碳酸二芳基酯和在制备碳酸二芳基酯时通过电化学氧化转化而形成的碱金属卤化物，任选地在气体 扩散电极，进入氯和碱性氢氧化物溶液中，氯被循环到光气的制备中，碱性氢氧化物溶液被循环到碳酸二芳基酯的制备中。