公开(公告)号：US5981788A

公开(公告)日：1999-11-09

申请号：US963109

申请日：1997-11-03

申请人： John Yaw Ofori ,  Sheldon Jay Shafer ,  Eric James Pressman ,  Ganesh Kailasam ,  Julia Lam Lee

发明人： John Yaw Ofori ,  Sheldon Jay Shafer ,  Eric James Pressman ,  Ganesh Kailasam ,  Julia Lam Lee

IPC分类号： B09B3/00 ,  B01J23/94 ,  B01J27/32 ,  B01J31/40 ,  B01J38/00 ,  B01J38/50 ,  C07C68/08 ,  C07C69/68 ,  C07C69/96

CPC分类号： B01J31/1805 ,  B01J31/0239 ,  B01J31/04 ,  B01J31/2208 ,  B01J31/2239 ,  B01J31/4023 ,  B01J31/4038 ,  C22B11/048 ,  B01J2531/82 ,  B01J2531/822 ,  B01J2531/845 ,  B01J27/10 ,  Y02P10/214

摘要： Catalytic materials including divalent palladium compounds, divalent cobalt compounds and bromide sources such as tetraalkylammonium and hexaalkylguanidinium bromides are removed from organic carbonylation reaction mixtures comprising said materials in combination with diaryl carbonate and hydroxyaromatic compound. The removal steps include extraction with an aqueous complexing solution for palladium, extraction with an aqueous non-basic and preferably ionic extractant for cobalt, and extraction with water to remove bromide source. These steps may be combined into an integrated process. Further steps of recycle of the palladium by reduction to elemental palladium and conversion to a catalytically active species, and conversion of cobalt to a catalytically active species, may be included in the integrated process.

摘要翻译： 包括二价钯化合物，二价钴化合物和溴化物源如四烷基铵和六烷基胍溴化物的催化材料从包含所述材料的碳酸二芳基酯和羟基芳族化合物的有机羰基化反应混合物中除去。 去除步骤包括用钯的水性络合溶液萃取，用非水碱性和优选离子萃取剂用于钴的萃取，并用水萃取以除去溴化物源。 这些步骤可以组合成一个集成的过程。 在一体化方法中可以包括通过还原成元素钯并转化为催化活性物质的钯和将钴转化成催化活性物质的再循环的步骤。

公开(公告)号：US07345187B2

公开(公告)日：2008-03-18

申请号：US09682286

申请日：2001-08-14

申请人： Eugene Pauling Boden ,  Ganesh Kailasam ,  Larry Neil Lewis ,  Alberto Nisoli ,  John Yaw Ofori ,  Angel Sanchez Gonzalez

发明人： Eugene Pauling Boden ,  Ganesh Kailasam ,  Larry Neil Lewis ,  Alberto Nisoli ,  John Yaw Ofori ,  Angel Sanchez Gonzalez

IPC分类号： C07C69/96

CPC分类号： B01J19/002 ,  B01J2219/00006 ,  B01J2219/00247 ,  B01J2219/00272 ,  C07C68/005 ,  C07C69/96

摘要： Unexpected corrosion of downstream sections of a dialkyl carbonate manufacturing apparatus has been traced to alkyl chloroformate impurities, which slowly decompose to yield hydrochloric acid. An improved process and apparatus for dialkyl carbonate synthesis reduce corrosion by physically removing or chemically decomposing the alkyl chloroformate impurities within the corrosion-resistant upstream sections of the apparatus.

摘要翻译： 碳酸二烷基酯制造装置的下游部分的意外腐蚀已经被追溯到氯代甲酸烷基酯杂质中，其缓慢分解以产生盐酸。 用于碳酸二烷基酯合成的改进方法和装置通过物理去除或化学分解装置的耐腐蚀上游部分中的氯甲酸烷基酯杂质来减少腐蚀。

公开(公告)号：US06310229B1

公开(公告)日：2001-10-30

申请号：US09466030

申请日：1999-12-20

申请人： Grigorii Lev Soloveichik ,  Ben Purushatom Patel ,  John Yaw Ofori

发明人： Grigorii Lev Soloveichik ,  Ben Purushatom Patel ,  John Yaw Ofori

IPC分类号： C07F724

CPC分类号： B01J31/0214 ,  B01J31/2208 ,  B01J31/28 ,  B01J2531/824 ,  C07C37/66 ,  C07C39/44 ,  C07C68/005 ,  C07F7/003 ,  C07C69/96

摘要： Lead halophenoxides, especially bromophenoxides, are prepared by the reaction of lead(II) oxides with a hydroxyaromatic compound such as phenol and a chloride or bromide salt such as an alkali metal bromide, a tetraalkylammonium bromide or a bexaalkylguanidinium bromide. They are useful in catalyst compositions for the oxidative carbonylation of hydroxyaromatic compounds to diaryl carbonates.

摘要翻译： 铅卤化物，特别是溴苯氧化物，是通过氧化铅（II）与苯乙烯等羟基芳族化合物与溴化金属盐，溴化四烷基铵或溴化苄基溴化胍等氯化物或溴化物盐的反应来制备的。 它们可用于将羟基芳族化合物氧化羰基化成碳酸二芳基酯的催化剂组合物。

公开(公告)号：US06191060B1

公开(公告)日：2001-02-20

申请号：US09215362

申请日：1998-12-18

申请人： John Yaw Ofori

发明人： John Yaw Ofori

IPC分类号： B01J2034

CPC分类号： B01J31/2234 ,  B01J31/04 ,  B01J31/223 ,  B01J31/4015 ,  B01J31/4038 ,  B01J2231/34 ,  B01J2231/342 ,  B01J2531/16 ,  B01J2531/26 ,  B01J2531/44 ,  B01J2531/72 ,  B01J2531/82 ,  B01J2531/824 ,  B01J2531/845 ,  C07C68/005 ,  C07C68/08 ,  Y02P20/584 ,  C07C69/96

摘要： A method for efficient reclamation of metal catalyst species from aqueous extract streams diaryl cabonate synthesis, comprising treating a metal-containing aqueous extract stream of a mixture from the production of diaryl carbonates with a precipitating agent effective to selective precipitate one or more metal catalyst species from the extract. Use of these methods substantially reduces both financial and environmental concerns for the preparation of diaryl carbonates.

摘要翻译： 一种从含水提取物流二芳基二羧酸酯合成中有效回收金属催化剂种类的方法，包括用沉淀剂处理来自生产碳酸二芳基酯的混合物的含金属含水萃取物流，所述沉淀剂有效地将一种或多种金属催化剂物质从 提取物。 使用这些方法大大减少了制备碳酸二芳基酯的财务和环境问题。

公开(公告)号：US07351848B2

公开(公告)日：2008-04-01

申请号：US10227111

申请日：2002-08-23

申请人： Eugene Pauling Boden ,  Ganesh Kailasam ,  Larry Neil Lewis ,  Alberto Nisoli ,  John Yaw Ofori ,  Angel Sanchez Gonzalez

发明人： Eugene Pauling Boden ,  Ganesh Kailasam ,  Larry Neil Lewis ,  Alberto Nisoli ,  John Yaw Ofori ,  Angel Sanchez Gonzalez

IPC分类号： C07C69/96

CPC分类号： B01J19/002 ,  B01J2219/00006 ,  B01J2219/00247 ,  B01J2219/00272 ,  C07C68/005 ,  C07C69/96

摘要： Unexpected corrosion of downstream sections of a dialkyl carbonate manufacturing apparatus has been traced to alkyl chloroformate impurities, which slowly decompose to yield hydrochloric acid. An improved process and apparatus for dialkyl carbonate synthesis reduce corrosion by physically removing or chemically decomposing the alkyl chloroformate impurities within the corrosion-resistant upstream sections of the apparatus. The alkyl chloroformate may be decomposed by passing it through a passageway at a temperature of about 30° C. to about 130° C. for a time of about 0.5 hour to about 10 hours. The passageway may include one or more holding vessels or a tubular section that promotes plug flow.

摘要翻译： 碳酸二烷基酯制造装置的下游部分的意外腐蚀已经被追溯到氯代甲酸烷基酯杂质中，其缓慢分解以产生盐酸。 用于碳酸二烷基酯合成的改进方法和装置通过物理去除或化学分解装置的耐腐蚀上游部分中的氯甲酸烷基酯杂质来减少腐蚀。 氯甲酸烷基酯可以通过在约30℃至约130℃的温度通过通道约0.5小时至约10小时来分解。 通道可以包括一个或多个保持容器或者促进活塞流动的管状部分。

公开(公告)号：US06683015B2

公开(公告)日：2004-01-27

申请号：US09682173

申请日：2001-07-31

申请人： John Yaw Ofori ,  Peter John Bonitatebus, Jr.

发明人： John Yaw Ofori ,  Peter John Bonitatebus, Jr.

IPC分类号： B01J2034

CPC分类号： B01J31/0201 ,  B01J21/063 ,  B01J23/14 ,  B01J23/44 ,  B01J23/72 ,  B01J23/90 ,  B01J31/0204 ,  B01J31/0235 ,  B01J31/04 ,  B01J31/26 ,  B01J31/28 ,  B01J31/38 ,  B01J31/4015 ,  B01J31/4038 ,  B01J38/60 ,  B01J2231/34 ,  B01J2531/96 ,  C07C68/005 ,  Y02P20/584 ,  C07C69/96

摘要： The present invention is directed to a method for reactivating a deactivated carbonylation catalyst composition previously used in a carbonylation reaction involving an aromatic hydroxy compound, carbon monoxide and oxygen, so that the re-activated catalyst composition is effective at carbonylating an aromatic hydroxy compound in a subsequent oxidative carbonylation reaction.

摘要翻译： 本发明涉及一种先前用于涉及芳族羟基化合物，一氧化碳和氧气的羰基化反应中使用的失活的羰基化催化剂组合物的方法，使得再活化的催化剂组合物在羰基化芳族羟基化合物中是有效的 随后氧化羰基化反应。

公开(公告)号：US6090737A

公开(公告)日：2000-07-18

申请号：US218636

申请日：1998-12-22

申请人： John Yaw Ofori

发明人： John Yaw Ofori

IPC分类号： B01D9/02 ,  B01D11/04 ,  C01G21/06 ,  C07B61/00 ,  C07C68/00 ,  C07C68/08 ,  C07C69/96 ,  B01J20/34 ,  C01G21/02 ,  C02F1/72

CPC分类号： C07C68/08 ,  C07C68/005 ,  Y02P20/582 ,  Y10S210/912

摘要： A method for efficient removal of lead co-catalyst species from organic process streams arising from diaryl carbonate synthesis, by contacting the organic reaction mixtures with an aqueous acid, salt, or acid/salt solution, thereby extracting the treated mixture into an aqueous phase, or by treating the organic reaction mixtures with solid oxalic acid or oxalic acid salt, or an aqueous solution of oxalic acid or oxalic acid salt, thereby resulting in precipitation of the lead. The precipitated lead may then be calcined to provide a lead compound that is catalytically active in the carbonylation of phenol to yield diary carbonates. Use of these methods will substantially reduce both financial and environmental concerns for the preparation of diaryl carbonates.

摘要翻译： 通过使有机反应混合物与酸，盐或酸/盐水溶液接触，从而从碳酸二芳酯合成产生的有机工艺流中有效除去铅助催化剂物质的方法，从而将经处理的混合物萃取到水相中， 或通过用固体草酸或草酸盐或草酸或草酸盐的水溶液处理有机反应混合物，从而导致铅沉淀。 然后可以将沉淀的铅煅烧以提供在苯酚羰基化中具有催化活性的铅化合物，以产生日记碳酸盐。 这些方法的使用将大大减少制备碳酸二芳基酯的财务和环境问题。

公开(公告)号：US06617279B2

公开(公告)日：2003-09-09

申请号：US09780701

申请日：2001-02-12

申请人： Ben Purushotam Patel ,  Grigorii Lev Soloveichik ,  John Yaw Ofori

发明人： Ben Purushotam Patel ,  Grigorii Lev Soloveichik ,  John Yaw Ofori

IPC分类号： B01J3100

CPC分类号： C07C68/005 ,  C07C69/96

摘要： Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIIIB metal, preferably palladium; an iodide salt, preferably sodium iodide; and at least one organic bisphosphine such as 1,3-bis(diphenylphosphino)propane or 1,4-bis(diphenylphosphino)butane. The catalyst system also preferably contains a compound of cerium or lead.

摘要翻译： 在含有VIIIB族金属，优选钯的催化剂体系的存在下，用氧和一氧化碳将羟基芳族化合物如苯酚羰基化; 碘化物盐，优选碘化钠; 和至少一种有机双膦，例如1,3-双（二苯基膦基）丙烷或1,4-双（二苯基膦基）丁烷。 催化剂体系还优选含有铈或铅的化合物。

公开(公告)号：US06215015B1

公开(公告)日：2001-04-10

申请号：US09550202

申请日：2000-04-17

申请人： Ben Purushotam Patel ,  Grigorii Lev Soloveichik ,  John Yaw Ofori

发明人： Ben Purushotam Patel ,  Grigorii Lev Soloveichik ,  John Yaw Ofori

IPC分类号： C07C6800

CPC分类号： C07C68/005 ,  C07C69/96

摘要： Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIIIB metal, preferably palladium; an iodide salt, preferably sodium iodide; and at least one organic bisphosphine such as 1,3-bis(diphenylphosphino)propane or 1,4-bis(diphenylphosphino)butane. The catalyst system also preferably contains a compound of cerium or lead.

摘要翻译： 在含有VIIIB族金属，优选钯的催化剂体系的存在下，用氧和一氧化碳将羟基芳族化合物如苯酚羰基化; 碘化物盐，优选碘化钠; 和至少一种有机双膦，例如1,3-双（二苯基膦基）丙烷或1,4-双（二苯基膦基）丁烷。 催化剂体系还优选含有铈或铅的化合物。

公开(公告)号：US6143937A

公开(公告)日：2000-11-07

申请号：US215387

申请日：1998-12-18

申请人： John Yaw Ofori

发明人： John Yaw Ofori

IPC分类号： C07C37/72 ,  C07C39/04 ,  C07C68/00 ,  C07C68/08

CPC分类号： C07C68/08 ,  C07C68/005

摘要： A method for efficiently recovering a hydroxyaromatic compound from aqueous extract streams of diaryl carbonate reaction mixtures, comprises contacting the aqueous extracts with a suitable solvent, preferably diphenyl carbonate or anisole. The aqueous stream may then be further recycled or reclaimed, and the hydroxyaromatic compound isolated from the solvent for disposal or further use.

摘要翻译： 一种从碳酸二芳基酯反应混合物的水提取物流中有效回收羟基芳族化合物的方法包括使含水萃取物与合适的溶剂，优选碳酸二苯酯或苯甲醚接触。 然后可以进一步循环或回收含水物流，并从溶剂中分离出羟基芳族化合物用于处理或进一步使用。