-
公开(公告)号：US5990349A
公开(公告)日：1999-11-23
申请号：US37020
申请日：1998-03-09
申请人： Friedhelm Geiger , Baudouin Halsberghe , Hans-Joachim Hasselbach , Klaus Hentschel , Klaus Huthmacher , Martin Korfer , Sven-Peter Mannsfeld , Herbert Tanner , Ferdinand Theissen , Jose Vanrobaeys , Klaus Willigerodt
发明人： Friedhelm Geiger , Baudouin Halsberghe , Hans-Joachim Hasselbach , Klaus Hentschel , Klaus Huthmacher , Martin Korfer , Sven-Peter Mannsfeld , Herbert Tanner , Ferdinand Theissen , Jose Vanrobaeys , Klaus Willigerodt
IPC分类号： C07C319/20 , C07C319/28 , C07C323/58 , C07D233/76 , C07C321/00 , C07C315/00
CPC分类号： C07C319/20 , C07C319/28 , C07D233/76
摘要： A process for the preparation of methionine or a salt of methionine by reaction of the components 3-methylmercaptopropionaldhyde, hydrogen cyanide, ammonia and carbon dioxide or components from which the above-mentioned components can be prepared, optionally in the presence of water, to 5-(2-methylmercaptoethyl)-hydantoin and further reaction thereof to methionine or the salt thereof, characterised in that the reaction of the components is initiated by means of at least one premixture in such a way that a first mixture is formed containing at least the predominant proportion (at least 5/10) of the 3-methylmercaptopropionaldeyde and at least 1/10 of the hydrogen cyanide component or corresponding quantities of components from which these components can be prepared, and less than 5/10 of one of the components ammonia, carbon dioxide or of the components from which ammonia or carbon dioxide can be prepared, and in that this first mixture is combined with the other component(s) for the reactive conversion to 5-(2-methylmercaptoethyl)-hydantoin, wherein this (these) latter component(s) may be premixed in one or more other mixtures.
摘要翻译： 通过将3-甲基巯基丙酸，氰化氢，氨和二氧化碳或可由其制备上述组分的组分，任选地在水存在下，将组分3-甲基巯基丙酸，氰化氢，氨和二氧化碳或组分反应制备甲硫氨酸或甲硫氨酸的方法， - （2-甲基巯基乙基） - 乙内酰脲及其与甲硫氨酸或其盐的反应，其特征在于，组分的反应通过至少一种预混物引发，使得形成第一混合物至少含有 3-甲基巯基丙酸的主要比例（至少+ E，fra 5/10 + EE）和氰化氢组分的至少+ E，fra 1/10 + EE或可以制备这些组分的相应量的组分， 并且可以制备氨，二氧化碳或其中可以制备氨或二氧化碳的组分之一的小于+ E，fra 5/10 + EE，并且因为该第一混合物与 反应转化成5-（2-甲基巯基乙基） - 乙内酰脲的其它组分，其中这些（这些）后一种组分可以在一种或多种其它混合物中预混合。
-
公开(公告)号：US5770769A
公开(公告)日：1998-06-23
申请号：US768624
申请日：1996-12-18
申请人： Friedhelm Geiger , Baudouin Halsberghe , Hans-Joachim Hasselbach , Klaus Hentschel , Klaus Huthmacher , Martin Korfer , Sven-Peter Mannsfeld , Herbert Tanner , Ferdinand Theissen , Jose Vanrobaeys , Klaus Willigerodt
发明人： Friedhelm Geiger , Baudouin Halsberghe , Hans-Joachim Hasselbach , Klaus Hentschel , Klaus Huthmacher , Martin Korfer , Sven-Peter Mannsfeld , Herbert Tanner , Ferdinand Theissen , Jose Vanrobaeys , Klaus Willigerodt
IPC分类号： C07C319/20 , C07C319/28 , C07C323/58 , C07D233/76 , C07C321/00
CPC分类号： C07C319/20 , C07C319/28 , C07D233/76
摘要： A process for the preparation of methionine or a salt of methionine by reaction of the components 3-methylmercaptopropionaldhyde, hydrogen cyanide, ammonia and carbon dioxide or components from which the above-mentioned components can be prepared, optionally in the presence of water, to 5-(2-methylmercaptoethyl)-hydantoin and further reaction thereof to methionine or the salt thereof, characterised in that the reaction of the components is initiated by means of at least one premixture in such a way that a first mixture is formed containing at least the predominant proportion (at least 5/10) of the 3-methylmercaptopropionaldeyde and at least 1/10 of the hydrogen cyanide component or corresponding quantities of components from which these components can be prepared, and less than 5/10 of one of the components ammonia, carbon dioxide or of the components from which ammonia or carbon dioxide can be prepared, and in that this first mixture is combined with the other component(s) for the reactive conversion to 5-(2-methylmercaptoethyl)-hydantoin, wherein this (these) latter component(s) may be premixed in one or more other mixtures.
-
3.发明授权
公开(公告)号：US4518801A
公开(公告)日：1985-05-21
申请号：US648136
申请日：1984-09-07
IPC分类号： C07C319/20 , C07C67/00 , C07C313/00 , C07C323/58 , C07K5/062 , C07C149/247
CPC分类号： C07C319/22
摘要： The invention is directed to a process for the hydrolysis of 5-(.beta.-methylmercaptoethyl)-hydantoin by reaction at elevated temperature and pressure in an aqueous alkaline medium. There are obtained alkali methioninate solutions from which there can be separated methionine.
摘要翻译： 本发明涉及通过在碱性水溶液中升高温度和压力下的反应来水解5-（β-甲基巯基乙基） - 乙内酰脲的方法。 得到可从其中分离甲硫氨酸的甲硫氨酸甲酯溶液。
-
公开(公告)号：US4391988A
公开(公告)日：1983-07-05
申请号：US347476
申请日：1982-02-10
IPC分类号： C07C319/20 , A23K1/16 , C07C67/00 , C07C313/00 , C07C323/58 , C07C149/247
CPC分类号： A23K20/142
摘要： Aqueous sodium methioninate solutions having a low content of sodium carbonate can be recovered from the crude hydrolysis mixture resulting from the saponification of 5-(.beta.-methylmercaptoethyl)-hydantoin with 1.1 to 6 equivalents of sodium hydroxide and/or sodium carbonate by distilling off the water from the crude hydrolysis mixture until the sodium methioninate content is 40 to 65 weight percent, and after cooling to at most room temperature separating off the precipitated sodium carbonate.
摘要翻译： 可从粗制水解混合物中回收由5-（β-甲基巯基乙基） - 乙内酰脲与1.1〜6当量的氢氧化钠和/或碳酸钠的皂化而得到的含碳酸钠含量低的甲酸甲酯水溶液。 来自粗水解混合物的水直到甲硫氨酸钠含量为40至65重量％，并在冷却至至多室温后分离析出的碳酸钠。
-
公开(公告)号：US4391987A
公开(公告)日：1983-07-05
申请号：US347473
申请日：1982-02-10
IPC分类号： C07C319/20 , A23K1/16 , C07C67/00 , C07C313/00 , C07C323/58 , C07C149/247
CPC分类号： A23K20/142
摘要： Aqueous sodium methioninate solutions having a low content of sodium carbonate can be recovered from the crude hydrolysis mixture resulting from the saponification of 5-(.beta.-methylmercaptoethyl)hydantoin with 1.1 to 6 equivalents of sodium hydroxide and/or sodium carbonate by cooling the crude hydrolysis mixture to a temperature below 10.degree. C., separating off the precipitated sodium carbonate and concentrating the sodium methioninate solution remaining to 40 to 65 weight percent.
摘要翻译： 可从粗制水解混合物中回收粗制水解混合物中的5-（β-甲基巯基乙基）乙内酰脲与1.1至6当量氢氧化钠和/或碳酸钠的冷却粗水解 混合至低于10℃的温度，分离沉淀的碳酸钠并将剩余的甲硫氨酸钠溶液浓缩至40至65重量％。
-
6.发明申请Network with redundancy properties, a branching unit for a user device in a network, redundancy manager for a network with redundancy properties and method for operating a network with redundancy properties 有权具有冗余属性的网络，网络中的用户设备的分支单元，具有冗余属性的网络的冗余管理器和用于操作具有冗余性质的网络的方法公开(公告)号：US20070109958A1
公开(公告)日：2007-05-17
申请号：US10561478
申请日：2004-11-26
IPC分类号： H04J3/14
CPC分类号： G05B19/048 , G05B2219/24182 , G05B2219/25021 , H04L69/40
摘要： The invention relates to a network, in particular a PA PROFIBUS network having redundant properties and a linear topology. Two line ends are connected to a redundancy manager which disconnects said line ends in error-free conditions and connects them in error conditions. Said redundancy manager supplies voltage to the first line end for operating customers' mobile telephones each of which is connected to the network by a branching unit. After receiving a supply voltage on one connection thereof, said branching units check the state of a cable which is connected to the other network connection and transmit the supply voltage in the faultless condition thereof only. When the redundancy manager does not detect the supply voltage on the other end of the line end at least during a predetermined space of time after voltage supply, said redundancy manager supplies the voltage thereto. A cable having a disturbance is then disconnected from the line by the adjacent branching units.
摘要翻译： 本发明涉及一种网络，特别是具有冗余特性和线性拓扑的PA PROFIBUS网络。 两个线路端连接到冗余管理器，该冗余管理器在无错误的条件下断开所有线路端，并在错误条件下连接它们。 所述冗余管理器向第一线路端提供电压，以操作每个通过分支单元连接到网络的客户的移动电话。 在其一个连接处接收到电源电压之后，所述分支单元检查连接到另一个网络连接的电缆的状态，并且仅在其无故障状态下传送电源电压。 当冗余管理器至少在电压供给之后的预定时间内没有检测到线路端部的另一端的电源电压时，所述冗余管理器向其提供电压。 然后由相邻的分支单元将具有干扰的电缆与线分离。
-
公开(公告)号：US4239696A
公开(公告)日：1980-12-16
申请号：US655017
申请日：1976-02-04
申请人： Gerd Schreyer , Friedhelm Geiger , Jorg Hensel
发明人： Gerd Schreyer , Friedhelm Geiger , Jorg Hensel
IPC分类号： C07C309/02 , C07C20060101 , C07C67/00 , C07C301/00 , C07C303/16 , C07C309/04 , C07C143/02
CPC分类号： C07C309/00
摘要： Alkylsulfonic acids are prepared by oxidation of an alkyl mercaptan or dialkyl disulfide with hydrogen peroxide in an alkylsulfonic acid in the absence of percarboxylic acids and preferably employing 1 to 35 mole % of alkylsulfonic acid based on the alkyl mercaptan or dialkyl disulfide employed.
摘要翻译： 烷基磺酸通过在不存在过羧酸的情况下在烷基磺酸中用过氧化氢氧化烷基硫醇或二烷基二硫化物制备，优选使用基于所用烷基硫醇或二烷基二硫化物的1至35摩尔％的烷基磺酸。
-
公开(公告)号：US3961023A
公开(公告)日：1976-06-01
申请号：US540706
申请日：1975-01-13
CPC分类号： C01C3/004 , B01D53/1493 , C01B7/01
摘要： Cyanogen chloride and hydrogen chloride are produced by reacting hydrogen cyanide and chlorine, separating from the gaseous mixture on the one hand hydrogen chloride and on the other hand cyanogen chloride which in a given case can also contain chlorine, by absorption in a halohydrocarbon which has a boiling point between that of cyanogen chloride and cyanuric chloride and after distillative separation of the dissolved cyanogen chloride-chlorine mixture returning the solvent to the absorption column, the process includesA. adding as the solvent for the absorption a trifluoromethyl substituted aromatic hydrocarbon or halohydrocarbon or a mixture of such trifluoromethyl substituted aromatic hydrocarbons or halohydrocarbons,B. subjecting the gas mixture consisting of cyanogen chloride, hydrogen chloride and in a given case chlorine after leaving the reactor for the chlorination of hydrogen cyanide and before entrance into the absorption column to a pretreatment with the solvents set forth under (a) at a temperature between 80.degree.C. and the boiling point of the solvent and/orC. either converting the N-chloro-chloroformimide chloride formed in small amounts from the chlorine and cyanogen chloride in the course of the absorption and distillation into the insoluble chloroformimide chloride hydrochloride by gassing the solvent with hydrogen chloride and separating the insoluble hydrochloride in conventional manner and/or withdrawing the N-chloro-chloroformimide together with some cyanogen chloride and solvent of the previously named distillation column for separation of the cyanogen chloride by means of a side outlet, and in a second subsequently provided distillation column separating into solvent and pure N-chloro-chloroformimide chloride, whereby then the latter can be conducted both into the cyanogen chloride reactor and also, if connected to a plant for the production of cyanuric chloride, into the trimerization reactor for cyanogen chloride and/orD. subjecting the solvent contaminated with byproducts by the suspension resulting from the pretreatment and/or accumulating in the sump of the distillation column for the separation of the cyanogen chloride completely or in a partial stream to an aqueous alkaline treatment or in combination with a cyanuric chloride condensation plant leading the suspension formed in the pretreatment to the cyanuric chloride condensation column.
-
公开(公告)号：US3947552A
公开(公告)日：1976-03-30
申请号：US530611
申请日：1974-12-06
IPC分类号： C07D251/28 , B01D15/00 , B01D53/02 , B01D53/26 , B01J19/00 , B01J20/18 , C01C3/00 , C01B21/18
摘要： Cyanogen chloride is purified and the service life of activated carbon is increased in the subsequent trimerization of the cyanogen chloride to cyanuric chloride by process comprising reacting hydrogen cyanide with chlorine, in a given case in the presence of cyanogen chloride produced in the presence of water, which in a given case contains chlorine. The improvement comprises passing the cyanogen chloride over granular commercial sodium aluminum silicate or a molecular sieve of the mordenite type, at 20.degree.-100.degree.C., preferably 30.degree.-60.degree.C.
摘要翻译： 纯化氰化氯，随后在氰化氢与氰尿酰氯的三聚反应中活性炭的使用寿命增加，包括使氰化氢与氯反应，在给定的情况下，在存在水的情况下生成的氯化氰， 在给定的情况下，含氯。 改进之处在于将氰化氯通过粒状商业硅酸铝钠或丝光沸石型分子筛在20℃-100℃，优选30℃-60℃下进行。
-
10.发明授权Network with redundancy properties, a branching unit for a user device in a network, redundancy manager for a network with redundancy properties and method for operating a network with redundancy properties 有权具有冗余属性的网络，网络中的用户设备的分支单元，具有冗余属性的网络的冗余管理器和用于操作具有冗余性质的网络的方法公开(公告)号：US07493524B2
公开(公告)日：2009-02-17
申请号：US10561478
申请日：2004-11-26
IPC分类号： G06F11/00
CPC分类号： G05B19/048 , G05B2219/24182 , G05B2219/25021 , H04L69/40
摘要： The invention relates to a network, in particular a PA PROFIBUS network having redundant properties and a linear topology. Two line ends are connected to a redundancy manager which disconnects said line ends in error-free conditions and connects them in error conditions. Said redundancy manager supplies voltage to the first line end for operating customers' mobile telephones each of which is connected to the network by a branching unit. After receiving a supply voltage on one connection thereof, said branching units check the state of a cable which is connected to the other network connection and transmit the supply voltage in the faultless condition thereof only. When the redundancy manager does not detect the supply voltage on the other end of the line end at least during a predetermined space of time after voltage supply, said redundancy manager supplies the voltage thereto. A cable having a disturbance is then disconnected from the line by the adjacent branching units.
摘要翻译： 本发明涉及一种网络，特别是具有冗余特性和线性拓扑的PA PROFIBUS网络。 两个线路端连接到冗余管理器，该冗余管理器在无错误的条件下断开所有线路端，并在错误条件下连接它们。 所述冗余管理器向第一线路端提供电压，以操作每个通过分支单元连接到网络的客户的移动电话。 在其一个连接处接收到电源电压之后，所述分支单元检查连接到另一个网络连接的电缆的状态，并且仅在无故障状态下传送电源电压。 当冗余管理器至少在电压供给之后的预定时间内没有检测到线路端部的另一端的电源电压时，所述冗余管理器向其提供电压。 然后由相邻的分支单元将具有干扰的电缆与线分离。
-
-
-
-
-
-
-
-
-
搜索结果
15 条记录 (耗时 0.032 秒)
