专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5505918A Method for manufacturing alkali chromates from chromium ore 失效
标题翻译：从铬矿生产铬酸铬的方法
公开(公告)号：US5505918A
公开(公告)日：1996-04-09
申请号：US314553
申请日：1994-09-28
申请人： Uwe Arndt , Michael Batz , Rainer Bellinghausen , Hans-Dieter Block , Heinrich Helker , Norbert Lonhoff , Hans-Heinrich Moretto , Hans-Georg Nieder-Vahrenholz , Hans Rinkes , Bernhard Spreckelmeyer , Rainer Weber
发明人： Uwe Arndt , Michael Batz , Rainer Bellinghausen , Hans-Dieter Block , Heinrich Helker , Norbert Lonhoff , Hans-Heinrich Moretto , Hans-Georg Nieder-Vahrenholz , Hans Rinkes , Bernhard Spreckelmeyer , Rainer Weber
IPC分类号： C01G37/14 , C22B34/32
CPC分类号： C01G37/14
摘要： A method for manufacturing alkali chromates by the reacting of chromium ore with alkali compounds and oxidation in an atmosphere containing at least 50% oxygen is described, in which the mixture consisting of chromium ore, alkali compound and optionally leaning materials is heated in a first stage in an atmosphere containing not more than 5 vol. % oxygen to a temperature between 1000.degree. and 1 400.degree. C., and in a second stage is oxidized at a lower temperature of 900.degree. to 1 070.degree. C. with supply of an atmosphere containing at least 50% oxygen.
摘要翻译：描述了通过铬矿与碱性化合物的反应并在含有至少50％的氧的气氛中进行氧化来制造碱铬酸盐的方法，其中由铬矿，碱化合物和任选的倾斜材料组成的混合物在第一阶段中被加热在不超过5体积的气氛中。氧气的氧气温度在1000-400℃之间，第二阶段在900℃至110℃的较低温度下被氧化，同时供给含有至少50％氧气的气氛。

2. 发明授权

US5667759A Method for manufacturing alkali chromates from chromium ore 失效
标题翻译：从铬矿生产铬酸铬的方法
公开(公告)号：US5667759A
公开(公告)日：1997-09-16
申请号：US690420
申请日：1996-07-26
申请人： Rainer Bellinghausen , Heinrich Helker , Paul Strehlow , Hans-Heinrich Moretto , Bernhard Spreckelmeyer , Norbert Lonhoff , Michael Batz , Rainer Weber , Hans Rinkes , Hans-Dieter Block , Uwe Arndt
发明人： Rainer Bellinghausen , Heinrich Helker , Paul Strehlow , Hans-Heinrich Moretto , Bernhard Spreckelmeyer , Norbert Lonhoff , Michael Batz , Rainer Weber , Hans Rinkes , Hans-Dieter Block , Uwe Arndt
IPC分类号： C01G37/14 , C01G37/00
CPC分类号： C01G37/14
摘要： A method for the decomposition of chromium ore in a directly heated revolving tube is described, in which oxygen-containing gases are introduced into the revolving tube by means of below-bed nozzles.
摘要翻译：描述了在直接加热的旋转管中分解铬矿的方法，其中含氧气体通过下床喷嘴引入回转管中。

3. 发明授权

US5250274A Process for the production of sodium dichromate 失效
标题翻译：生产重铬酸钠的方法
公开(公告)号：US5250274A
公开(公告)日：1993-10-05
申请号：US824682
申请日：1992-01-21
申请人： Norbert Lonhoff , Bernhard Spreckelmeyer , Hans-Dieter Block , Rainer Weber , Jost Halstenberg , Bernd Rosenow
发明人： Norbert Lonhoff , Bernhard Spreckelmeyer , Hans-Dieter Block , Rainer Weber , Jost Halstenberg , Bernd Rosenow
IPC分类号： C01G37/14 , C01G37/00
CPC分类号： C01G37/14
摘要： 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.
摘要翻译：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。

4. 发明授权

US5068015A Electrochemical process for the production of chromic acid 失效
标题翻译：电化学工艺生产氯酸
公开(公告)号：US5068015A
公开(公告)日：1991-11-26
申请号：US393733
申请日：1989-08-15
申请人： Hans-Dieter Block , Norbert Lonhoff , Bernd Makowka , Helmut Klotz , Rainer Weber , Bernhard Spreckelmeyer
发明人： Hans-Dieter Block , Norbert Lonhoff , Bernd Makowka , Helmut Klotz , Rainer Weber , Bernhard Spreckelmeyer
IPC分类号： C25B1/00 , C25B1/22 , C25B15/08
CPC分类号： C25B1/22
摘要： 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.
摘要翻译：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。

5. 发明授权

US5424474A Fluorinated carboxylic acid esters of phosphono- and phosphinocarboxylic acids containing hydroxyl and/or mercapto groups, a method for their preparation, and their use 失效
标题翻译：含有羟基和/或巯基的膦酰基和膦酰基羧酸的氟化羧酸酯，其制备方法及其用途
公开(公告)号：US5424474A
公开(公告)日：1995-06-13
申请号：US172274
申请日：1993-12-23
申请人： Klaus Pohmer , Rainer Weber , Hans-Dieter Block , Hans-Heinrich Moretto
发明人： Klaus Pohmer , Rainer Weber , Hans-Dieter Block , Hans-Heinrich Moretto
IPC分类号： B05D7/26 , C07F9/30 , C07F9/38 , C09K3/18 , C14C9/00 , D06M13/29
CPC分类号： D06M13/29 , C07F9/301 , C07F9/3808 , Y02E60/36
摘要： The present invention relates to fluorinated carboxylic acid esters of phosphono- and phosphinocarboxylic acids containing hydroxyl and/or mercapto groups, their use as waterproofing and/or oil-repellency agents, and a method for their preparation.
摘要翻译：本发明涉及含有羟基和/或巯基的膦酰基和膦酰基羧酸的氟化羧酸酯，它们作为防水和/或拒油剂的用途及其制备方法。

6. 发明授权

US5342986A Fluorinated carboxylic acid esters of phosphonocarboxylic acids and phosphinocarboxylic acids and use thereof 失效
标题翻译：膦酰基羧酸和膦酰基羧酸的氟化羧酸酯及其用途
公开(公告)号：US5342986A
公开(公告)日：1994-08-30
申请号：US157820
申请日：1993-11-24
申请人： Klaus Pohmer , Rainer Weber , Hans-Dieter Block , Cornelia Dorzhach-Lange , Hans-Heinrich Moretto
发明人： Klaus Pohmer , Rainer Weber , Hans-Dieter Block , Cornelia Dorzhach-Lange , Hans-Heinrich Moretto
IPC分类号： B01F17/00 , B01F17/14 , B01F17/26 , B01F17/42 , C07F9/30 , C07F9/38 , C11D1/00 , C11D1/34 , C25D3/02
CPC分类号： C11D1/342 , B01F17/0064 , C07F9/301 , C07F9/3808 , C11D1/006 , C25D3/02
摘要： The present invention relates to fluorinated carboxylic acid esters of phosphonocarboxylic acids or phosphinocarboxylic acids, and the use thereof as surface-active agents.
摘要翻译：本发明涉及膦酰基羧酸或膦酰基羧酸的氟化羧酸酯及其作为表面活性剂的用途。

7. 发明授权

US5411726A Process for purifying hydrogen fluoride 失效
标题翻译：氟化氢净化方法
公开(公告)号：US5411726A
公开(公告)日：1995-05-02
申请号：US188683
申请日：1994-01-31
申请人： Andreas Bulan , Rainer Weber , Hans-Dieter Block , Hans-Heinrich Moretto
发明人： Andreas Bulan , Rainer Weber , Hans-Dieter Block , Hans-Heinrich Moretto
IPC分类号： C01B7/19 , C01B11/24 , C25B1/24
CPC分类号： C01B7/195 , C01B11/24
摘要： The invention relates to a process for purifying industrial anhydrous hydrogen fluoride by means of oxygen difluoride.
摘要翻译：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。

8. 发明授权

US5414102A Fluorinated carboxylic acid esters of phosphono- and phosphinocarboxylic acids containing acrylate and/or methacrylate groups 失效
标题翻译：含有丙烯酸酯和/或甲基丙烯酸酯基团的膦酰基和次膦酸的氟化羧酸酯
公开(公告)号：US5414102A
公开(公告)日：1995-05-09
申请号：US172751
申请日：1993-12-27
申请人： Klaus Pohmer , Rainer Weber , Hans-Dieter Block , Hans-Heinrich Moretto
发明人： Klaus Pohmer , Rainer Weber , Hans-Dieter Block , Hans-Heinrich Moretto
IPC分类号： B05D7/26 , C07F9/30 , C07F9/38 , C09K3/00 , C09K3/18 , C14C9/00 , D06M13/298 , D06M13/447 , C07C9/02 , C07C229/00 , C07C269/00
CPC分类号： D06M13/447 , C07F9/301 , C07F9/3808 , D06M13/298
摘要： The present invention relates to fluorinated carboxylic acid esters of phosphonocarboxylic acids containing acrylate and/or methacrylate groups, their use as waterproofing or oil-repellency agents, and a method for their preparation.
摘要翻译：本发明涉及含有丙烯酸酯和/或甲基丙烯酸酯基团的膦酰基羧酸的氟化羧酸酯，它们作为防水或拒油剂的用途及其制备方法。

9. 发明授权

US5273735A Process for the preparation of sodium dichromate 失效
标题翻译：重铬酸钠的制备方法
公开(公告)号：US5273735A
公开(公告)日：1993-12-28
申请号：US980142
申请日：1992-11-23
申请人： Rainer Weber , Bernd Rosenow , Hans-Dieter Block , Norbert Lonhoff
发明人： Rainer Weber , Bernd Rosenow , Hans-Dieter Block , Norbert Lonhoff
IPC分类号： C01G37/14 , C25B1/28
CPC分类号： C25B1/28 , C01G37/14
摘要： A process for the preparation of sodium dichromate and sodium dichromate solutions by alkaline oxidizing roasting of chromium ores, leaching resulting roast with water, adjustment of the pH to 7 to 9.5, removal of the insoluble constituents by filtration, a sodium monochromate solution containing 300 to 400 g/l of Na.sub.2 CrO.sub.4 being obtained, conversion of the monochromate ions of this solution into dichromate ions by addition of an acid and/or by electrolysis and/or by reaction with carbon dioxide under pressure and crystallization of sodium dichromate by concentration of this solution. The improvement wherein before the conversion into a sodium dichromate solution, the sodium monochromate solution is concentrated to contents of 700 to 1000 g/l of Na.sub.2 CrO.sub.4, the monochromatic ions, the solution is subsequently freed as far as possible from sodium sulphate by cooling to a temperature of below 0.degree. C. and filtration, and the residual monochromate ions which remain in the solution are converted into dichromate ions by electrolysis and/or by reaction with carbon dioxide and/or with chromic acid.
摘要翻译：一种通过碱性氧化焙烧铬矿石，用水浸泡，调节pH至7至9.5，通过过滤除去不溶成分的方法制备重铬酸钠和重铬酸钠溶液的方法，将含有300〜获得400g / l的Na 2 CrO 4，通过加入酸和/或通过电解和/或通过与压力下的二氧化碳反应并通过浓缩该溶液使重结晶的重结晶，将该溶液的单色离子转化为重铬酸根离子。改进之前，在转化成重铬酸钠溶液之前，将单色钠溶液浓缩至700至1000g / l Na 2 CrO 4的含量，即单色离子，随后将溶液从硫酸钠中冷却至温度低于0℃并过滤，留在溶液中的残留单色离子通过电解和/或通过与二氧化碳和/或与铬酸的反应转化为重铬酸根离子。

10. 发明授权

US5051155A Processes for the preparation of alkali metal dichromates and chromic acid 失效
标题翻译：碱金属重铬酸盐和铬酸的制备方法
公开(公告)号：US5051155A
公开(公告)日：1991-09-24
申请号：US632417
申请日：1990-12-21
申请人： Helmut Klotz , Hans D. Pinter , Rainer Weber , Hans-Dieter Block , Norbert Lonhoff
发明人： Helmut Klotz , Hans D. Pinter , Rainer Weber , Hans-Dieter Block , Norbert Lonhoff
IPC分类号： C01G37/14 , C25B1/14 , C25B1/22
CPC分类号： C25B1/22
摘要： A process for the preparation of alkali metal dichromates and chromic acid by the electrolysis of monochromate and/or dichromate solutions in an electrolytic cell in which the anode and cathode chambers are separated by cation exchange member, the improvement wherein the formation of deposits on the membrane is prevented comprising continuously introducing a solution containing chromate at a pH of about 3 to 10 into the cathode chamber during the electrolysis.
摘要翻译：通过在阳极交换构件中分离阳极室和阴极室的电解池中电解单色和/或重铬酸盐溶液来制备碱金属重铬酸盐和铬酸的方法，其中在膜上形成沉积物可防止在电解过程中将含有约3〜10的pH的铬酸盐溶液连续引入阴极室。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式