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公开(公告)号:US09067872B2
公开(公告)日:2015-06-30
申请号:US13141906
申请日:2009-12-22
IPC分类号: C07C319/02 , C07C319/08 , C07C303/16 , C07C319/24
CPC分类号: C07C319/08 , C07C303/16 , C07C319/24 , C07C321/04 , C07C321/14 , C07C309/04
摘要: A process for compressing a hydrogen-sulfide-comprising gas stream, which comprises (i) compressing the hydrogen-sulfide-comprising gas stream in a compressor, (ii) flushing the compressor with a mixture comprising dialkyl polysulfides, dialkyl disulfides and at least one amine; a process for producing sulfur compounds, selected from the group consisting of alkylmercaptans, dialkyl disulfides and alkanesulfonic acids, which comprises the conversion of hydrogen-sulfide-comprising gas streams, wherein the hydrogen-sulfide-comprising gas streams are compressed according to the process comprising steps i) and ii); and also the use of a mixture comprising dialkyl polysulfides, dialkyl disulfides and at least one amine for removing sulfur deposits which occur in the compression of hydrogen-sulfide-comprising gas streams.
摘要翻译: 一种用于压缩含硫化氢的气流的方法,其包括(i)在压缩机中压缩含硫化氢的气流,(ii)用包含二烷基多硫化物,二烷基二硫化物和至少一种 胺; 一种生产选自烷基硫醇,二烷基二硫化物和烷基磺酸的硫化合物的方法,其包括含硫化氢的气流的转化,其中含硫化氢的气流根据包括 步骤i)和ii); 以及使用包含二烷基多硫化物,二烷基二硫化物和至少一种胺的混合物来除去在含硫化氢的气流的压缩中发生的硫沉积物。
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公开(公告)号:US08436204B2
公开(公告)日:2013-05-07
申请号:US12307759
申请日:2007-07-05
申请人: Carsten Knoesche , Eckhard Stroefer , Dieter Stuetzer , Bernd Sachweh , Markus Linsenbuhler , Andreas Woelfert
发明人: Carsten Knoesche , Eckhard Stroefer , Dieter Stuetzer , Bernd Sachweh , Markus Linsenbuhler , Andreas Woelfert
IPC分类号: C07C263/00
CPC分类号: C07C263/10 , C07C265/14
摘要: The invention provides a process for preparing isocyanates by reacting amines with phosgene, wherein the amine or a mixture of amine and a solvent is mixed in the form of an aerosol with gaseous phosgene and the amine is subsequently reacted with phosgene.
摘要翻译: 本发明提供了一种通过使胺与光气反应来制备异氰酸酯的方法,其中胺或胺和溶剂的混合物以气溶胶的形式与气体光气混合,随后胺与光气反应。
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公开(公告)号:US08088944B2
公开(公告)日:2012-01-03
申请号:US11523556
申请日:2006-09-20
IPC分类号: C07C291/00 , C07C249/00
CPC分类号: B01D3/141 , C07C263/10 , C07C263/20 , C07C265/14
摘要: Isocyanates are prepared by a process in which a product stream from the isocyanate synthesis is purified.
摘要翻译: 异氰酸酯通过其中来自异氰酸酯合成的产物流被纯化的方法制备。
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公开(公告)号:US07994361B2
公开(公告)日:2011-08-09
申请号:US10523919
申请日:2003-07-24
申请人: Andreas Woelfert , Christian Mueller , Eckhard Stroefer , Markus Weber , Joachim Pfeffinger , Carsten Knoesche
发明人: Andreas Woelfert , Christian Mueller , Eckhard Stroefer , Markus Weber , Joachim Pfeffinger , Carsten Knoesche
IPC分类号: C07C249/00
CPC分类号: C07C263/10 , C07C265/14
摘要: The invention relates to a process for preparing aromatic diisocyanates by reaction of phosgene with diamines in the gas phase, in which the reaction is carried out in a reaction zone at moderate pressures, i.e. the pressure in this reaction zone is more than 3 bar and less than 20 bar.
摘要翻译: 本发明涉及一种通过光气与气相中的二胺反应制备芳族二异氰酸酯的方法,其中反应在中等压力下在反应区中进行,即该反应区中的压力大于3巴以及更低 超过20巴。
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公开(公告)号:US07915444B2
公开(公告)日:2011-03-29
申请号:US11997412
申请日:2006-07-31
IPC分类号: C07C263/10
CPC分类号: C07C263/10 , C07C263/20 , C07C265/14
摘要: The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase.
摘要翻译: 本发明涉及一种在气相中由二胺和光气制备二异氰酸酯的方法。
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公开(公告)号:US20100217035A1
公开(公告)日:2010-08-26
申请号:US12678771
申请日:2008-09-11
申请人: Carsten Knoesche , Andreas Woelfert , Torsten Mattke , Eckhard Stroefer , Heinrich-Josef Blankertz , Bernhard Geissler
发明人: Carsten Knoesche , Andreas Woelfert , Torsten Mattke , Eckhard Stroefer , Heinrich-Josef Blankertz , Bernhard Geissler
IPC分类号: C07C263/10
CPC分类号: C07C263/10 , C07C2601/14 , C07C265/14
摘要: The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase.
摘要翻译: 本发明涉及一种在气相中由二胺和光气制备二异氰酸酯的方法。
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公开(公告)号:US20100041914A1
公开(公告)日:2010-02-18
申请号:US12513864
申请日:2007-11-06
申请人: Andreas Woelfert , Andreas Daiss , Torsten Mattke
发明人: Andreas Woelfert , Andreas Daiss , Torsten Mattke
IPC分类号: C07C263/10
CPC分类号: C07C263/10 , B01F5/0653 , B01F15/0265 , B01J4/002 , B01J19/26 , B01J2219/00164 , C07C2601/14 , C07C265/14
摘要: The present invention relates to a process for preparing isocyanates.
摘要翻译: 本发明涉及一种制备异氰酸酯的方法。
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公开(公告)号:US07084297B2
公开(公告)日:2006-08-01
申请号:US10495757
申请日:2002-11-19
申请人: Andreas Woelfert , Christian Mueller , Eckhard Stroefer , Joachim Pfeffinger , Markus Weber , Carsten Knoesche
发明人: Andreas Woelfert , Christian Mueller , Eckhard Stroefer , Joachim Pfeffinger , Markus Weber , Carsten Knoesche
IPC分类号: C07C263/00
CPC分类号: C07C263/10 , C07C265/14
摘要: The invention relates to a method for producing isocyanates by reacting primary amines with phosgene in the gaseous phase. Said method is characterized in that the reaction of amine and phosgene occurs in a reaction channel, the internal dimensions of which have a width/height ratio of at least 2/1.
摘要翻译: 本发明涉及通过使伯胺与气相中的光气反应制备异氰酸酯的方法。 所述方法的特征在于胺和光气的反应发生在反应通道中,其内部尺寸的宽/高比至少为2/1。
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