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1. 发明授权

US07850939B2 Method for producing prussic acid 有权
标题翻译：普鲁士酸生产方法
公开(公告)号：US07850939B2
公开(公告)日：2010-12-14
申请号：US12439845
申请日：2007-08-28
申请人： Andreas Deckers , Thomas Schneider
发明人： Andreas Deckers , Thomas Schneider
IPC分类号： C01C3/02
CPC分类号： C01C3/0204
摘要： Process for preparing hydrocyanic acid, which comprises catalytic dehydration of gaseous formamide to give a product mixture comprising hydrocyanic acid, water, formamide, ammonia, CO and high boilers, separation of the product mixture by condensation of a condensate comprising water, formamide, high boilers and possibly ammonia and hydrocyanic acid from the product mixture obtained and partial or total recirculation of the condensate into a heat exchanger located downstream of the reactor.
摘要翻译：制备氢氰酸的方法，其包括气态甲酰胺的催化脱水，得到包含氢氰酸，水，甲酰胺，氨，CO和高锅炉的产物混合物，通过包含水，甲酰胺，高锅炉的冷凝物冷凝分离产物混合物并且可能得到所得产物混合物中的氨和氢氰酸，并将冷凝物部分或全部再循环到位于反应器下游的热交换器中。

2. 发明申请

US20100284889A1 METHOD FOR PRODUCING HYDROCYANIC ACID BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE 审中-公开
标题翻译：通过气相甲醛催化脱氢生产氢氯酸的方法
公开(公告)号：US20100284889A1
公开(公告)日：2010-11-11
申请号：US12742845
申请日：2008-11-12
申请人： Ralf Boehling , Andreas Deckers , Thomas Schneider , Guenther Achhammer , Hermann Luyken , Peter Pfab
发明人： Ralf Boehling , Andreas Deckers , Thomas Schneider , Guenther Achhammer , Hermann Luyken , Peter Pfab
IPC分类号： C01C3/02 , B01J8/04
CPC分类号： C01C3/0204 , B01J19/0093 , B01J2219/00783 , B01J2219/00822 , B01J2219/00835 , B01J2219/0086 , B01J2219/00873
摘要： A process for preparing hydrogen cyanide by catalytically dehydrating gaseous formamide in a tubular reactor formed from at least one reaction channel in which the catalytic dehydration proceeds, said reaction channel having an inner surface which is formed from a material having an iron content of ≧50% by weight, and no additional catalysts and/or internals being present in the reaction channel, and the at least one reaction channel having a mean hydraulic diameter of from 0.5 to 6 mm, and a reactor with the features specified above and the use of the inventive reactor for preparing hydrogen cyanide by catalytically dehydrating gaseous formamide.
摘要翻译：一种通过在由催化脱水进行的至少一个反应通道形成的管式反应器中催化脱水气态甲酰胺制备氰化氢的方法，所述反应通道具有由铁含量为≥50％的材料形成的内表面，，并且在反应通道中不存在另外的催化剂和/或内部物质，并且所述至少一个反应通道具有0.5-6mm的平均水力直径，以及具有上述特征的反应器和使用通过催化脱水气态甲酰胺制备氰化氢的本发明反应器。

3. 发明申请

US20100021365A1 METHOD FOR PRODUCING PRUSSIC ACID 有权
标题翻译：生产乳酸的方法
公开(公告)号：US20100021365A1
公开(公告)日：2010-01-28
申请号：US12439845
申请日：2007-08-28
申请人： Andreas Deckers , Thomas Schneider
发明人： Andreas Deckers , Thomas Schneider
IPC分类号： C01C3/02
CPC分类号： C01C3/0204
摘要： Process for preparing hydrocyanic acid, which comprises catalytic dehydration of gaseous formamide to give a product mixture comprising hydrocyanic acid, water, formamide, ammonia, CO and high boilers, separation of the product mixture by condensation of a condensate comprising water, formamide, high boilers and possibly ammonia and hydrocyanic acid from the product mixture obtained and partial or total recirculation of the condensate into a heat exchanger located downstream of the reactor.
摘要翻译：制备氢氰酸的方法，其包括气态甲酰胺的催化脱水，得到包含氢氰酸，水，甲酰胺，氨，CO和高锅炉的产物混合物，通过包含水，甲酰胺，高锅炉的冷凝物冷凝分离产物混合物并且可能得到所得产物混合物中的氨和氢氰酸，并将冷凝物部分或全部再循环到位于反应器下游的热交换器中。

4. 发明申请

US20090039315A1 AQUEOUS SOLUTIONS CONTAINING METAL CYANIDE FOR CYANIDE LEACHING FOR THE WINNING OF GOLD AND SILVER 失效
标题翻译：含金属氰化物的金属氰化物的水溶液，用于获得金和银的氰化物浸出
公开(公告)号：US20090039315A1
公开(公告)日：2009-02-12
申请号：US12278222
申请日：2007-01-22
申请人： Andreas Deckers , Thomas Schneider
发明人： Andreas Deckers , Thomas Schneider
IPC分类号： C09K3/00
CPC分类号： C22B11/08 , C01C3/08 , C01C3/10 , C07D277/46 , C07D417/12 , C07D417/14 , C22B3/44 , C22B7/006 , Y02P10/234
摘要： The present invention relates to solutions comprising water and at least one metal cyanide, at least a part of the water being obtained from wastewater which occurs as depleted wastewater in a process for extracting noble metals from noble metal-containing ores by the cyanide process, the process for the preparation of solutions according to the invention and to the use of the solutions according to the invention in a process for extracting noble metals from noble metal-containing ores by the cyanide process, to a process for extracting noble metals from noble metal-containing ores by the cyanide process, wherein the solution according to the invention is used, and to the use of depleted wastewater occurring in the extraction of noble metals from noble metal-containing ores by the cyanide process to the preparation of solutions comprising water and at least one metal cyanide.
摘要翻译：本发明涉及包含水和至少一种金属氰化物的溶液，至少一部分水是从废水中获得的，这些废水是在通过氰化物处理从含贵金属的矿石中提取贵金属的方法中作为贫化废水而发生的，根据本发明的溶液的制备方法以及根据本发明的溶液在通过氰化物方法从含贵金属的矿石中提取贵金属的方法中的用途，用于从贵金属 - 通过氰化物方法，其中使用根据本发明的溶液，以及使用通过氰化物方法从含贵金属的矿石中提取贵金属的贫化废水到制备包含水和在至少一种金属氰化物。

5. 发明申请

US20100316552A1 PROCESS FOR PREPARING HYDROGEN CYANIDE BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE 审中-公开
标题翻译：通过气相甲酰胺催化脱氢制备氢氰化物的方法
公开(公告)号：US20100316552A1
公开(公告)日：2010-12-16
申请号：US12742773
申请日：2008-11-10
申请人： Ralf Boehling , Andreas Deckers , Thomas Schneider , Guenther Achhammer , Hermann Luyken , Peter Pfab , Klaus Schubert , Manfred Kraut
发明人： Ralf Boehling , Andreas Deckers , Thomas Schneider , Guenther Achhammer , Hermann Luyken , Peter Pfab , Klaus Schubert , Manfred Kraut
IPC分类号： C01C3/02
CPC分类号： C01C3/0204 , B01J19/0093 , B01J2219/00783 , B01J2219/00822 , B01J2219/00835 , B01J2219/0086 , B01J2219/00873
摘要： A process for preparing hydrogen cyanide, comprising the provision of gaseous formamide by evaporating liquid formamide in an evaporator (step i)) and the catalytic dehydration of the gaseous formamide (step ii)), and also an apparatus for performing the process according to the invention, comprising at least one microevaporator and a tubular reactor, and the use of a microevaporator for evaporating formamide in a process for preparing hydrogen cyanide from formamide.
摘要翻译：一种制备氰化氢的方法，包括通过在蒸发器中蒸发液体甲酰胺（步骤i））和气态甲酰胺的催化脱水（步骤ii）提供气态甲酰胺），以及用于执行根据本发明包括至少一个微蒸发器和管式反应器，以及在从甲酰胺制备氰化氢的方法中使用微蒸发器蒸发甲酰胺。

6. 发明申请

US20070231239A1 Method for the Production of Hydrocyanic Acid 有权
标题翻译：生产氢氰酸的方法
公开(公告)号：US20070231239A1
公开(公告)日：2007-10-04
申请号：US11574064
申请日：2005-09-02
申请人： Andreas Deckers , Arnulf Lauterbach , Anton Negele , Thomas Schneider
发明人： Andreas Deckers , Arnulf Lauterbach , Anton Negele , Thomas Schneider
IPC分类号： C01C3/02
CPC分类号： C01C3/0204
摘要： Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide, in which a formamide-containing recycle stream is obtained from the product mixture after the dehydration and is recirculated to the dehydration, wherein the formamide-containing recycle stream contains from 5 to 50% by weight of water.
摘要翻译：通过气态甲酰胺的催化脱水制备氢氰酸的方法，其中在脱水后从产物混合物获得含甲酰胺的再循环物流并再循环至脱水，其中含甲酰胺的循环物流含有5-50％水的重量。

7. 发明授权

US08038974B2 Aqueous solutions containing metal cyanide for cyanide leaching for the winning of gold and silver 失效
标题翻译：含金属氰化物的水溶液用于氰化物浸出以获得金和银
公开(公告)号：US08038974B2
公开(公告)日：2011-10-18
申请号：US12278222
申请日：2007-01-22
申请人： Andreas Deckers , Thomas Schneider
发明人： Andreas Deckers , Thomas Schneider
IPC分类号： C01C3/08 , C01C3/02 , C01C3/00 , C01D3/08 , B01D11/00
CPC分类号： C22B11/08 , C01C3/08 , C01C3/10 , C07D277/46 , C07D417/12 , C07D417/14 , C22B3/44 , C22B7/006 , Y02P10/234
摘要： The present invention relates to solutions comprising water and at least one metal cyanide, at least a part of the water being obtained from wastewater which occurs as depleted wastewater in a process for extracting noble metals from noble metal-containing ores by the cyanide process, the process for the preparation of solutions according to the invention and to the use of the solutions according to the invention in a process for extracting noble metals from noble metal-containing ores by the cyanide process, to a process for extracting noble metals from noble metal-containing ores by the cyanide process, wherein the solution according to the invention is used, and to the use of depleted wastewater occurring in the extraction of noble metals from noble metal-containing ores by the cyanide process to the preparation of solutions comprising water and at least one metal cyanide.
摘要翻译：本发明涉及包含水和至少一种金属氰化物的溶液，至少一部分水是从废水中获得的，这些废水是在通过氰化物处理从含贵金属的矿石中提取贵金属的方法中作为贫化废水而发生的，根据本发明的溶液的制备方法以及根据本发明的溶液在通过氰化物方法从含贵金属的矿石中提取贵金属的方法中的用途，从贵金属 - 通过氰化物方法，其中使用根据本发明的溶液，以及使用通过氰化物方法从含贵金属的矿石中提取贵金属的贫化废水到制备包含水和在至少一种金属氰化物。

8. 发明授权

US07514059B2 Method for the production of hydrocyanic acid 有权
标题翻译：生产氢氰酸的方法
公开(公告)号：US07514059B2
公开(公告)日：2009-04-07
申请号：US11574064
申请日：2005-09-02
申请人： Andreas Deckers , Arnulf Lauterbach , Anton Negele , Thomas Schneider
发明人： Andreas Deckers , Arnulf Lauterbach , Anton Negele , Thomas Schneider
IPC分类号： C01C3/02
CPC分类号： C01C3/0204
摘要： Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide, in which a formamide-containing recycle stream is obtained from the product mixture after the dehydration and is recirculated to the dehydration, wherein the formamide-containing recycle stream contains from 5 to 50% by weight of water.
摘要翻译：通过气态甲酰胺的催化脱水制备氢氰酸的方法，其中在脱水后从产物混合物获得含甲酰胺的再循环物流并再循环至脱水，其中含甲酰胺的循环物流含有5-50％水的重量。

9. 发明申请

US20080203355A1 Method for Producing Salts of Hydrocyanic Acid 审中-公开
标题翻译：生产氢氰酸盐的方法
公开(公告)号：US20080203355A1
公开(公告)日：2008-08-28
申请号：US11916915
申请日：2006-05-31
申请人： Andreas Deckers , Thomas Schneider , Helmuth Menig
发明人： Andreas Deckers , Thomas Schneider , Helmuth Menig
IPC分类号： C09K3/00
CPC分类号： C01C3/08 , C01C3/10
摘要： The present application relates to a process for preparing a solution of cyanide salts, comprising the steps of: a) preparing a crude gas comprising hydrocyanic acid by dehydrating formamide up to a formamide conversion of ≧97%; b) if appropriate, acid-scrubbing the crude gas obtained in step a); c) subsequently reacting the crude gas obtained in step a) or, if appropriate, in step b) with an aqueous solution of a hydroxide, M(OH)x, where M is selected from the group consisting of alkali metals and alkaline earth metals and x is dependent upon the oxidation state of M and is 1 or 2.
摘要翻译：本申请涉及一种制备氰化物盐溶液的方法，包括以下步骤：a）通过将甲酰胺脱水直到甲醛转化率> 97％，制备包含氢氰酸的粗气体; b）如果合适，酸洗涤步骤a）中获得的粗气体; c）随后将步骤a）中获得的粗气体或如果合适的话，在步骤b）中与氢氧化物M（OH）x X的水溶液反应，其中M选自的碱金属和碱土金属，x取决于M的氧化态，为1或2。

10. 发明授权

US09034293B2 Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide—direct heating 有权
标题翻译：通过气态甲酰胺直接加热催化脱水制备氢氰酸的方法
公开(公告)号：US09034293B2
公开(公告)日：2015-05-19
申请号：US12935840
申请日：2009-03-30
申请人： Ralf Boehling , Andreas Deckers , Achim Gritsch , Stefan Kotrel
发明人： Ralf Boehling , Andreas Deckers , Achim Gritsch , Stefan Kotrel
IPC分类号： C01C3/02 , B01J19/00 , B01J19/24
CPC分类号： C01C3/0204 , B01J19/0093 , B01J19/249 , B01J2219/00783 , B01J2219/00788 , B01J2219/00822 , B01J2219/00824 , B01J2219/00835 , B01J2219/0086 , B01J2219/00873 , B01J2219/00889 , B01J2219/2453 , B01J2219/2459 , B01J2219/2465 , B01J2219/2474 , B01J2219/2479 , B01J2219/2481 , B01J2219/2486 , B01J2219/2487 , B01J2219/2497 , C01C3/02
摘要： Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide, wherein the dehydration of formamide is coupled with an exothermic reaction by the reactor used in the dehydration comprising two separate fluid paths which are separated by a common reactor wall, with one fluid path being provided for the dehydration of formamide and the second fluid path being provided for the exothermic reaction.
摘要翻译：通过气态甲酰胺的催化脱水制备氢氰酸的方法，其中甲酰胺的脱水通过用于脱水的反应器与放热反应相结合，所述反应器包括由共同反应器壁分离的两个分离的流体路径，其中提供一个流体路径用于甲酰胺的脱水和为放热反应提供的第二流体路径。

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