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1. 发明授权

US06930195B2 Process for the production of unsymmetric and/or symmetric dialkyl carbonates and diols 失效
公开(公告)号：US06930195B2
公开(公告)日：2005-08-16
申请号：US10619962
申请日：2003-07-15
申请人： J. Scott Buchanan , Zhaozhong Jiang , Jose Guadalupe Santiesteban , William A. Weber
发明人： J. Scott Buchanan , Zhaozhong Jiang , Jose Guadalupe Santiesteban , William A. Weber
IPC分类号： C07C68/06 , C07C69/96 , C07C31/18
CPC分类号： C07C68/065 , C07C69/96
摘要： A process for the production of a dialkyl carbonate and a diol, such as dimethyl carbonate and ethylene glycol, by reacting a feed containing a cyclic carbonate, a hydroxy alkyl carbonate and an aliphatic monohydric alcohol in the presence of a transesterification catalyst is described. In another aspect, a process is described which is particularly useful for producing unsymmetric dialkyl carbonates, such as ethyl methyl carbonate.

2. 发明授权

US07504527B2 Low corrosive integrated process for preparing dialkyl carbonates 失效
标题翻译：用于制备碳酸二烷基酯的低腐蚀性综合工艺
公开(公告)号：US07504527B2
公开(公告)日：2009-03-17
申请号：US10641596
申请日：2003-08-15
申请人： Richard H. Schlosberg , J. Scott Buchanan , Jose Guadalupe Santiesteban , Zhaozhong Jiang , William A. Weber
发明人： Richard H. Schlosberg , J. Scott Buchanan , Jose Guadalupe Santiesteban , Zhaozhong Jiang , William A. Weber
IPC分类号： C07C69/96
CPC分类号： C07D317/38 , B01J2219/00006 , C07C29/128 , C07C29/1285 , C07C68/065 , C07D317/36 , C08G64/307 , C08G64/34 , Y02P20/125 , Y02P20/127 , Y02P20/584 , C07C69/96 , C07C31/202
摘要： An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a halogen-free carbonation catalyst to provide a corresponding cyclic carbonate and the cyclic carbonate is then reacted with an aliphatic monohydric alcohol in the presence of the carbonation catalyst and/or a transesterification catalyst and recycling the carbonation catalyst to provide a corresponding dialkyl carbonate and diol, wherein the dialkyl carbonate product exhibits a halogen concentration of about 5 ppm or less.
摘要翻译：描述了一种用于从烯化氧，二氧化碳和脂族一元醇生产碳酸二烷基酯和二醇的综合方法，其中在无卤素碳酸化催化剂存在下，首先使环氧烷与二氧化碳反应，以提供然后在碳酸化催化剂和/或酯交换催化剂的存在下使相应的环状碳酸酯和环状碳酸酯与脂族一元醇反应，并循环碳酸化催化剂以提供相应的碳酸二烷基酯和二醇，其中碳酸二烷基酯产物显示出卤素浓度为约5ppm以下。

3. 发明授权

US07145029B2 Low corrosive integrated process for preparing dialkyl carbonates 失效
公开(公告)号：US07145029B2
公开(公告)日：2006-12-05
申请号：US10879792
申请日：2004-06-29
申请人： Richard H. Schlosberg , J. Scott Buchanan , Jose Guadalupe Santiesteban , Zhaozhong Jiang , William A. Weber
发明人： Richard H. Schlosberg , J. Scott Buchanan , Jose Guadalupe Santiesteban , Zhaozhong Jiang , William A. Weber
IPC分类号： C07C69/96
CPC分类号： C07D317/38 , B01J2219/00006 , C07C29/128 , C07C29/1285 , C07C68/065 , C07D317/36 , C08G64/307 , C08G64/34 , Y02P20/125 , Y02P20/127 , Y02P20/584 , C07C69/96 , C07C31/202
摘要： An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a halogen-free carbonation catalyst to provide a corresponding cyclic carbonate and the cyclic carbonate is then reacted with an aliphatic monohydric alcohol in the presence of the carbonation catalyst and/or a transesterification catalyst and recycling the carbonation catalyst to provide a corresponding dialkyl carbonate and diol, wherein the dialkyl carbonate product exhibits a halogen concentration of about 5 ppm or less.

4. 发明授权

US06774256B2 Low corrosive integrated process for preparing dialkyl carbonates 失效
标题翻译：用于制备碳酸二烷基酯的低腐蚀性综合工艺
公开(公告)号：US06774256B2
公开(公告)日：2004-08-10
申请号：US10105550
申请日：2002-03-25
申请人： Richard H. Schlosberg , J. Scott Buchanan , Jose Guadalupe Santiesteban , Zhaozhong Jiang , William A. Weber
发明人： Richard H. Schlosberg , J. Scott Buchanan , Jose Guadalupe Santiesteban , Zhaozhong Jiang , William A. Weber
IPC分类号： C07C6996
CPC分类号： C07D317/38 , B01J2219/00006 , C07C29/128 , C07C29/1285 , C07C68/065 , C07D317/36 , C08G64/307 , C08G64/34 , Y02P20/125 , Y02P20/127 , Y02P20/584 , C07C69/96 , C07C31/202
摘要： An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a halogen-free carbonation catalyst to provide a corresponding cyclic carbonate and the cyclic carbonate is then reacted with an aliphatic monohydric alcohol in the presence of the carbonation catalyst and/or a transesterification catalyst and recycling the carbonation catalyst to provide a corresponding dialkyl carbonate and diol, wherein the dialkyl carbonate product exhibits a halogen concentration of about 5 ppm or less.
摘要翻译：描述了一种用于从烯化氧，二氧化碳和脂族一元醇生产碳酸二烷基酯和二醇的综合方法，其中在无卤素碳酸化催化剂存在下，首先使环氧烷与二氧化碳反应，以提供然后在碳酸化催化剂和/或酯交换催化剂的存在下使相应的环状碳酸酯和环状碳酸酯与脂族一元醇反应，并循环碳酸化催化剂以提供相应的碳酸二烷基酯和二醇，其中碳酸二烷基酯产物显示出卤素浓度为约5ppm以下。

5. 发明授权

US06620959B1 Process for the production of unsymmetric and/or symmetric dialkyl carbonates and diols 失效
标题翻译：用于生产不对称和/或对称的碳酸二烷基酯和二醇的方法
公开(公告)号：US06620959B1
公开(公告)日：2003-09-16
申请号：US10123717
申请日：2002-04-16
申请人： J. Scott Buchanan , Zhaozhong Jiang , Jose Guadalupe Santiesteban , William A. Weber
发明人： J. Scott Buchanan , Zhaozhong Jiang , Jose Guadalupe Santiesteban , William A. Weber
IPC分类号： C07C6996
CPC分类号： C07C68/065 , C07C69/96
摘要： A process for the production of a dialkyl carbonate and a diol, such as dimethyl carbonate and ethylene glycol, by reacting a feed containing a cyclic carbonate, a hydroxy alkyl carbonate and an aliphatic monohydric alcohol in the presence of a transesterification catalyst is described. In another aspect, a process is described which is particularly useful for producing unsymmetric dialkyl carbonates, such as ethyl methyl carbonate.
摘要翻译：描述了在酯交换催化剂存在下，通过使含有环状碳酸酯，羟基烷基碳酸酯和脂肪族一元醇的进料反应来制造碳酸二烷基酯和二醇的方法，例如碳酸二甲酯和乙二醇。在另一方面，描述了一种方法，其特别可用于生产不对称的碳酸二烷基酯，例如碳酸甲乙酯。

6. 发明授权

US07491837B2 Low corrosive integrated process for preparing dialkyl carbonates 失效
公开(公告)号：US07491837B2
公开(公告)日：2009-02-17
申请号：US10642367
申请日：2003-08-15
申请人： Richard H. Schlosberg , J. Scott Buchanan , Jose Guadalupe Santiesteban , Zhaozhong Jiang , William A. Weber
发明人： Richard H. Schlosberg , J. Scott Buchanan , Jose Guadalupe Santiesteban , Zhaozhong Jiang , William A. Weber
IPC分类号： C07C69/96
CPC分类号： C07D317/38 , B01J2219/00006 , C07C29/128 , C07C29/1285 , C07C68/065 , C07D317/36 , C08G64/307 , C08G64/34 , Y02P20/125 , Y02P20/127 , Y02P20/584 , C07C69/96 , C07C31/202
摘要： An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a halogen-free carbonation catalyst to provide a corresponding cyclic carbonate and the cyclic carbonate is then reacted with an aliphatic monohydric alcohol in the presence of the carbonation catalyst and/or a transesterification catalyst and recycling the carbonation catalyst to provide a corresponding dialkyl carbonate and diol, wherein the dialkyl carbonate product exhibits a halogen concentration of about 5 ppm or less.

7. 发明授权

US07453007B2 Process for the production of unsymmetric and/or symmetric dialkyl carbonates and diols 失效
标题翻译：用于生产不对称和/或对称的碳酸二烷基酯和二醇的方法
公开(公告)号：US07453007B2
公开(公告)日：2008-11-18
申请号：US11148820
申请日：2005-06-09
申请人： J. Scott Buchanan , Zhaozhong Jiang , Jose Guadalupe Santiesteban , William A. Weber
发明人： J. Scott Buchanan , Zhaozhong Jiang , Jose Guadalupe Santiesteban , William A. Weber
IPC分类号： C07C69/96
CPC分类号： C07C68/065 , C07C69/96
摘要： A process for the production of a dialkyl carbonate and a diol, such as dimethyl carbonate and ethylene glycol, by reacting a feed containing a cyclic carbonate, a hydroxy alkyl carbonate and an aliphatic monohydric alcohol in the presence of a transesterification catalyst is described. In another aspect, a process is described which is particularly useful for producing unsymmetric dialkyl carbonates, such as ethyl methyl carbonate.
摘要翻译：描述了在酯交换催化剂存在下，通过使含有环状碳酸酯，羟基烷基碳酸酯和脂肪族一元醇的进料反应来制造碳酸二烷基酯和二醇的方法，例如碳酸二甲酯和乙二醇。在另一方面，描述了一种方法，其特别可用于生产不对称的碳酸二烷基酯，例如碳酸甲乙酯。

8. 发明授权

US07084292B2 Integrated process for preparing dialkyl carbonates with a circulating catalyst 失效
公开(公告)号：US07084292B2
公开(公告)日：2006-08-01
申请号：US09887642
申请日：2001-06-22
申请人： J. Scott Buchanan , Zhaozhong Jiang , Jose G. Santiesteban , William A. Weber
发明人： J. Scott Buchanan , Zhaozhong Jiang , Jose G. Santiesteban , William A. Weber
IPC分类号： C07C69/96
CPC分类号： C07C68/065 , B01J2219/00006 , C07D317/36 , C07D317/38 , C08G64/307 , C08G64/34 , Y02P20/125 , Y02P20/127 , Y02P20/584 , C07C69/96
摘要： An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a homogeneous carbonation catalyst to provide a corresponding cyclic carbonate and the cyclic carbonate is then reacted with an aliphatic monohydric alcohol in the presence of the homogeneous carbonation catalyst and/or a heterogeneous transesterification catalyst and recycling the homogeneous carbonation catalyst to provide a corresponding dialkyl carbonate and diol.

9. 发明授权

US06407279B1 Integrated process for preparing dialkyl carbonates and diols 失效
标题翻译：用于制备碳酸二烷基酯和二醇的一体化方法
公开(公告)号：US06407279B1
公开(公告)日：2002-06-18
申请号：US09444231
申请日：1999-11-19
申请人： J. Scott Buchanan , Zhaozhong Jiang , Jocelyn A. Kowalski , Jose G. Santiesteban
发明人： J. Scott Buchanan , Zhaozhong Jiang , Jocelyn A. Kowalski , Jose G. Santiesteban
IPC分类号： C07C6996
CPC分类号： C07C68/065 , C07C29/1285 , Y02P20/125 , C07C69/96 , C07C31/202
摘要： An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a carbonation catalyst to provide a corresponding cyclic carbonate and impurities and the cyclic carbonate, which contains the impurities, is then reacted with an aliphatic monohydric alcohol in the presence of a transesterification catalyst to provide a corresponding dialkyl carbonate and diol.
摘要翻译：描述了一种用于从烯化氧，二氧化碳和脂族一元醇生产碳酸二烷基酯和二醇的综合方法，其中烯化氧首先在碳酸化催化剂存在下与二氧化碳反应以提供相应的环状然后将含有杂质的环状碳酸酯与脂肪族一元醇在酯交换催化剂存在下反应，得到相应的碳酸二烷基酯和二醇。

10. 发明授权

US06573396B2 Co-production of dialkyl carbonates and diols with treatment of hydroxy alkyl carbonate 失效
标题翻译：与碳酸二烷基酯和二醇共同生产碳酸羟基烷基酯
公开(公告)号：US06573396B2
公开(公告)日：2003-06-03
申请号：US09976608
申请日：2001-10-12
申请人： J. Scott Buchanan , Jose G. Santiesteban , Zhaozhong Jiang
发明人： J. Scott Buchanan , Jose G. Santiesteban , Zhaozhong Jiang
IPC分类号： C07C6996
CPC分类号： C07C68/065 , Y02P20/127 , C07C69/96
摘要： A process for the production of a dialkyl carbonate and a diol from a cyclic carbonate and an aliphatic monohydric alcohol wherein the cyclic carbonate and aliphatic monohydric alcohol are reacted in the presence of a transesterification catalyst to form a crude product stream which contains a dialkyl carbonate, a diol, a hydroxy alkyl carbonate, which is formed as an intermediate of the two step transesterification reaction, unreacted aliphatic monohydric alcohol and unreacted cyclic carbonate. The dialkyl carbonate and unreacted aliphatic monohydric alcohol are separated from the crude product stream and then the hydroxy alkyl carbonate is diminished, reduced or eliminated from the crude product stream, prior to the separation and purification steps needed to recover the diol, resulting in improved yields and product purity.
摘要翻译：一种由环状碳酸酯和脂族一元醇生产碳酸二烷基酯和二醇的方法，其中环状碳酸酯和脂肪族一元醇在酯交换催化剂的存在下反应，形成含有碳酸二烷基酯的粗产物流，作为两步酯交换反应的中间体形成的二醇，羟基烷基碳酸酯，未反应的脂肪族一元醇和未反应的环状碳酸酯。将碳酸二烷基酯和未反应的脂肪族一元醇与粗产物流分离，然后在回收二醇所需的分离和纯化步骤之前，从粗产物流中减少，还原或消除羟基烷基碳酸酯，从而提高产率和产品纯度。

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