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公开(公告)号:US5313005A
公开(公告)日:1994-05-17
申请号:US120644
申请日:1993-09-13
CPC分类号: C07C41/42 , B01D3/009 , C07C41/06 , Y02P20/127
摘要: A process for the etherification of isoolefins with alcohols is provided wherein the reaction occurs simultaneously with separation of the ether product and reactants. To assure proper alcohol concentration in a catalytic distillation column, the oxygen concentration derived from alcohol is measured at a point below the catalyst bed and controlled to that which maximizes ether production while preventing alcohol from leaving the reactor with ether product.
摘要翻译: 提供了使用异构醇与醇进行醚化的方法,其中反应与醚产物和反应物的分离同时进行。 为了确保催化蒸馏塔中适当的酒精浓度,在催化剂床下方测量来自醇的氧浓度,并将其控制在使乙醚生成最大化的同时防止乙醇与乙醚产物离开反应器。
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公开(公告)号:US06232509B1
公开(公告)日:2001-05-15
申请号:US09591520
申请日:2000-06-09
IPC分类号: C07C4109
CPC分类号: C07C41/06 , B01D3/009 , C07C41/42 , Y02P20/127 , C07C43/046
摘要: A process for the separation and recovery of methyl tertiary butyl ether from mixed C4/C5 streams, such as resulting from the co-production of methyl tertiary butyl ether and tertiary amyl methyl ether from the reaction of methanol with isobutene and isoamylenes in a mixed C4/C5 stream. In a distillation column reactor the reaction is carried out concurrently with distillation of the products from the unreacted materials. In the distillation little or no MTBE is carried overhead with the unreacted C4's, C5's and methanol by controlling the methanol concentration in said column to maintain substantially a methanol/C5 azeotrope in the overheads.
摘要翻译: 从混合的C4 / C5流中分离和回收甲基叔丁基醚的方法,例如由甲醇与异丁烯和异戊烯在混合C4中的反应中共同生产甲基叔丁基醚和叔戊基甲基醚 / C5流。 在蒸馏塔反应器中,反应与来自未反应物质的产物蒸馏同时进行。 在蒸馏中,通过控制所述塔中的甲醇浓度,很少或没有MTBE与未反应的C4,C5和甲醇一起承载,从而在塔顶馏出物中维持基本上甲醇/ C5共沸物。
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公开(公告)号:US5248837A
公开(公告)日:1993-09-28
申请号:US964496
申请日:1992-10-21
CPC分类号: C07C41/42 , B01D3/009 , C07C41/06 , Y02P20/127
摘要: A process for the etherification of isoolefins with alcohols is provided wherein the reaction occurs simultaneously with separation of the ether product and reactants. To assure proper alcohol concentration throughout the reaction zone, the alcohol concentration is measured at a point below the catalyst bed and controlled to that which maximizes ether production while preventing alcohol from leaving the reactor with ether product.
摘要翻译: 提供了使用异构醇与醇进行醚化的方法,其中反应与醚产物和反应物的分离同时进行。 为了确保在整个反应区域中适当的酒精浓度,在低于催化剂床的点处测量醇浓度,并控制为使乙醚生成最大化的醇浓度,同时防止醇与醚产物离开反应器。
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公开(公告)号:US06583325B1
公开(公告)日:2003-06-24
申请号:US10087371
申请日:2002-03-01
IPC分类号: C07C4100
CPC分类号: B01D3/009 , B01D3/146 , C07C41/06 , C07C41/42 , Y02P20/127 , C07C43/046
摘要: A process for the production of tertiary ethers from the reaction of isoolefins with lower alcohols, such as methanol, uses two distillation column reactors in series to maximize conversion, especially for isopentenes and isohexenes. The second distillation column reactor may be concurrently used as a C5 polishing reactor and a reactor for producing MTBE or ETBE from isobutene, for example.
摘要翻译: 从异烯烃与低级醇如甲醇的反应生产叔醚的方法使用两个串联的蒸馏塔反应器,以使转化率最大化,特别是对于异戊烯和异己烯。 第二蒸馏塔反应器可以同时用作C5抛光反应器和用于从异丁烯生产MTBE或ETBE的反应器。
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公开(公告)号:US4916956A
公开(公告)日:1990-04-17
申请号:US325960
申请日:1989-03-20
IPC分类号: G01N1/20
CPC分类号: G01N1/20
摘要: A system for exposing a sample to the interior of a reaction vessel has a pair of chambers interconnected by a passage. Each of the chambers may be isolated by valves with the outer chamber being removable. A sample holder is slidable between the chambers by a charging device and can be locked in place by rotation of the charging device. Flights on the interior of the passage provide guidance and facilitate locking.
摘要翻译: 用于将样品暴露于反应容器内部的系统具有通过通道相互连接的一对室。 每个室可以通过阀隔离,其中外室是可移除的。 样品架可以通过充电装置在室之间滑动,并且可以通过充电装置的旋转而被锁定就位。 通道内部的航班提供指导并方便锁定。
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公开(公告)号:US06659434B1
公开(公告)日:2003-12-09
申请号:US10044617
申请日:2002-01-11
申请人: Ralph E. Casas , Henry J. Semerak , Rodney D. Chevalier , Willibrord A. Groten , Clifford S. Crossland
发明人: Ralph E. Casas , Henry J. Semerak , Rodney D. Chevalier , Willibrord A. Groten , Clifford S. Crossland
IPC分类号: B01F304
CPC分类号: B01D47/16 , Y10T29/49716
摘要: A collapsible sparger for insertion into a vessel through a flanged opening is disclosed having a central tubular conduit having a plurality of rotatable members along its length. The rotatable members may be rotated and secured into position after insertion.
摘要翻译: 公开了一种用于通过法兰开口插入容器的可折叠式分布器,其具有沿着其长度具有多个可旋转构件的中心管状导管。 可旋转构件可以在插入之后旋转并固定到位。
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