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公开(公告)号:US07868211B2
公开(公告)日:2011-01-11
申请号:US12064731
申请日:2006-08-15
CPC分类号: C07C29/78 , B01D9/0013 , B01D9/0036 , B01D9/004 , C07B57/00 , C07B2200/07 , C07C29/172 , C07C2601/14 , C07C2601/16 , C07C35/17 , C07C35/12 , C07C35/08
摘要: The present invention relates to a process for preparing enriched isopulegol by crystallization from a melt comprising isopulegol. The invention relates specifically to a process for preparing enantiomerically enriched n-isopulegol proceeding from optically active isopulegol having a relatively low enantiomeric excess by crystallization from the melt. The invention further relates to a process for preparing menthol proceeding from enantiomerically and/or diastereomerically enriched n-isopulegol prepared by crystallization from the melt.
摘要翻译: 本发明涉及一种通过从包含异ule a醇的熔体中结晶而制备富集的异ule g醇的方法。 本发明具体涉及一种通过从熔体中结晶得到具有较低对映异构体过量的光学活性异胡酮醇制备对映异构体富集的异异径胶的方法。 本发明还涉及从通过从熔体结晶制备的对映异构体和/或非对映体富集的正异丙醇来制备薄荷醇的方法。
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12.
公开(公告)号:US20100222209A1
公开(公告)日:2010-09-02
申请号:US12681998
申请日:2008-09-26
申请人: Nawid Kashani-Shirazi , Veronika Wloka , Wolfgang Gerlinger , Andrea Schmidt , Kerstin Heinen , Wolfgang Kollenberg
发明人: Nawid Kashani-Shirazi , Veronika Wloka , Wolfgang Gerlinger , Andrea Schmidt , Kerstin Heinen , Wolfgang Kollenberg
CPC分类号: B01J8/067 , B01J19/2485 , B01J19/30 , B01J19/32 , B01J21/04 , B01J23/8973 , B01J35/026 , B01J35/04 , B01J37/0201 , B01J2219/30288 , B01J2219/30416 , B01J2219/30475 , B01J2219/3085 , B29C64/165 , B33Y70/00 , B33Y80/00 , C04B35/111 , C04B35/14 , C04B2235/6026 , C04B2235/606 , C04B2235/95 , Y10S502/524 , Y10S502/525
摘要: The invention relates to moulded bodies having catalytic properties, obtained due to a method that comprises the following said steps: a) a moulded body is produced by means of a powder-based rapid-prototyping-method, b) said moulded body is optionally heat-treated, c) at least one catalytically active component is optionally applied to the moulded body, d) said moulded body is optionally subjected to another heat-treatment. The steps b, c) and/or d) can be performed several times. Said moulded bodies are used as reactor fittings in heterogeneously catalyzed chemical reactions.
摘要翻译: 本发明涉及具有催化性能的成型体,由于包括以下步骤的方法获得:a)通过粉末基快速成型方法制备成型体,b)所述成型体任选地加热 处理,c)任选地将至少一种催化活性组分施加到成型体上,d)任选地对所述成型体进行另一种热处理。 步骤b,c)和/或d)可以进行多次。 所述成型体用作非均相催化化学反应中的反应器配件。
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13.
公开(公告)号:US20100206712A1
公开(公告)日:2010-08-19
申请号:US12677688
申请日:2008-07-23
CPC分类号: B01D3/141 , B01D3/14 , C07B2200/07 , C07C29/80 , C07C2601/14 , C07C35/12 , C07C35/17
摘要: The present invention relates to a continuous process for preparing racemic or optically active menthol in pure or enriched form by distillatively separating menthol from substance mixtures which comprise essentially menthol and diastereomers thereof. This distillatiive separation is performed in a dividing wall column with 50 to 300 theoretical plates and one or more side draw points at an absolute operating pressure of 5 to 500 mbar.
摘要翻译: 本发明涉及通过将薄荷醇与基本上含有薄荷醇和非对映异构体的物质混合物蒸馏分离来制备纯的或富集形式的外消旋或光学活性薄荷醇的连续方法。 该蒸馏分离在具有50至300个理论塔板和一个或多个侧向牵引点的分隔壁塔中进行,绝对操作压力为5至500毫巴。
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