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1. 发明授权

US5155040A Process for reducing the salt concentration in a biomass suspension 失效
标题翻译：降低生物质悬浮液中盐浓度的方法
公开(公告)号：US5155040A
公开(公告)日：1992-10-13
申请号：US493122
申请日：1990-03-15
申请人： Maria-Regina Kula , Arend Greve
发明人： Maria-Regina Kula , Arend Greve
IPC分类号： B01D11/04 , C07K1/14 , C12N1/00 , C12N9/00 , C12P21/00
CPC分类号： C12N1/005
摘要： Alcohol is suitable for the extraction of salt from biomass-containing suspensions, in particular from the salt-containing lower phase of an aqueous 2-phase extraction of intracellular proteins after cell disruption, with the formation of a salt-containing alcoholic upper phase. It is possible to use ethanol, propanol, isopropanol or tert.-butanol, but especially ethanol, as the alcohol. The upper phase is separated from the lower phase by disk separators or decanters. The extraction is carried out, in particular, as a countercurrent extraction in at least three stages, and uses 10 to 30% by weight salt-containing suspension or liquid with 30 to 50% by weight alcohol, in particular ethanol, remainder water. The alcohol is removed from the resulting salt-rich upper phase by evaporation, and the salt solution is recycled where appropriate after further concentration to obtain proteins.
摘要翻译：醇适用于从含有生物质的悬浮液中提取盐，特别是从细胞破碎后的细胞内蛋白水相2相提取的含盐下层中提取盐，形成含盐醇的上层相。可以使用乙醇，丙醇，异丙醇或叔丁醇，特别是乙醇作为醇。上层通过盘式分离器或倾析器与下层相分离。提取特别是作为至少三个阶段的逆流萃取，并且使用10至30重量％的含盐悬浮液或液体，其中含有30至50重量％的醇，特别是乙醇，剩余的水。通过蒸发从所得的富含盐的上层中除去醇，并且在进一步浓缩后适当地再循环盐溶液以获得蛋白质。

2. 发明授权

US07309804B2 Process for purifying 1,2-dichloroethane 有权
标题翻译： 1,2-二氯乙烷净化方法
公开(公告)号：US07309804B2
公开(公告)日：2007-12-18
申请号：US10280704
申请日：2002-10-25
申请人： Helmut Grumann , Manfred Stoger , Jurgen Eichler , Dieter Jaculi , Winfried Lork , Arend Greve , Jan Wilkens , Peter Kammerhofer , Hermann Tropp
发明人： Helmut Grumann , Manfred Stoger , Jurgen Eichler , Dieter Jaculi , Winfried Lork , Arend Greve , Jan Wilkens , Peter Kammerhofer , Hermann Tropp
IPC分类号： C07C17/02
CPC分类号： C07C17/38 , C07C17/156 , C07C19/045
摘要： A process for the preparation of 1,2-dichloroethane that is very pure with respect to chloral or/and chloral hydrate and carbon dioxide is described herein. The process comprises oxychlorination of ethylene, using hydrogen chloride and an oxygen-containing gas, and alkali treatment of the 1,2-dichloroethane produced. In the process, the carbon dioxide present in the 1,2-dichloroethane-containing organic phase is, in accordance with the invention, substantially separated out from the 1,2-dichloroethane-containing organic phase before the alkali treatment.
摘要翻译：本文描述了制备相对于氯醛或/和水合氯醛和二氧化碳非常纯的1,2-二氯乙烷的方法。该方法包括使用氯化氢和含氧气体对乙烯进行氧氯化，并对所生产的1,2-二氯乙烷进行碱处理。在该方法中，根据本发明，存在于含1,2-二氯乙烷的有机相中的二氧化碳在碱处理之前基本上与含1,2-二氯乙烷的有机相分离。

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