专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06294700B1 Separation processes 有权
标题翻译：分离过程
公开(公告)号：US06294700B1
公开(公告)日：2001-09-25
申请号：US09526636
申请日：2000-03-15
申请人： Jeffrey Scott Kanel , John Nicholas Argyropoulos , Ailene Gardner Phillips , Brian Michael Roesch , John Robert Briggs , Max Min Lee , John Michael Maher , David Robert Bryant
发明人： Jeffrey Scott Kanel , John Nicholas Argyropoulos , Ailene Gardner Phillips , Brian Michael Roesch , John Robert Briggs , Max Min Lee , John Michael Maher , David Robert Bryant
IPC分类号： C07C4550
CPC分类号： C07B63/00 , C07C45/50 , Y02P20/582 , C07C47/02
摘要： This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or more polar reaction solvents and one or more nonpolar reaction solvents, wherein said process comprises (1) subjecting said reaction product fluid to fractional countercurrent extraction with at least two immiscible extraction solvents, said at least two immiscible extraction solvents comprising at least one polar extraction solvent and at least one nonpolar extraction solvent, to obtain a polar phase comprising said metal-organophosphorus ligand complex catalyst, said optionally free organophosphorus ligand, said one or more polar reaction solvents and said at least one polar extraction solvent and a nonpolar phase comprising said one or more products, said one or more nonpolar reaction solvents and said at least one nonpolar extraction solvent, and (2) recovering said nonpolar phase from said polar phase; wherein (i) the organophosphorus ligand has a partition coefficient Kp1 defined herein between the polar phase and the nonpolar phase of greater than about 5, and (ii) the one or more products have a partition coefficient Kp2 defined herein between the polar phase and the nonpolar phase of less than about 2.0.
摘要翻译：本发明涉及用于从反应产物流体中分离一种或多种产物的方法，其包括金属 - 有机磷配体配合物催化剂，任选的游离有机磷配体，所述一种或多种产物，一种或多种极性反应溶剂和一种或多种非极性反应溶剂其中所述方法包括（1）使所述反应产物流体与至少两种不混溶的萃取溶剂进行分数逆流萃取，所述至少两种不混溶的萃取溶剂包含至少一种极性萃取溶剂和至少一种非极性萃取溶剂，以获得所述极性相包含所述金属 - 有机磷配体配合物催化剂，所述任选游离的有机磷配体，所述一种或多种极性反应溶剂和所述至少一种极性提取溶剂和包含所述一种或多种产物的非极性相，所述一种或多种非极性反应溶剂并表示至少一种非极性萃取溶剂，和（ 2）从所述极性相中回收所述非极性相; 其中（i）有机磷配体在极性相和非极性相之间定义的分配系数Kp1大于约5，和（ii）一种或多种产物在极性相和极性相之间具有限定的分配系数Kp2 非极性相小于约2.0。

2. 发明授权

US06310260B1 Separation processes 有权
标题翻译：分离过程
公开(公告)号：US06310260B1
公开(公告)日：2001-10-30
申请号：US09526191
申请日：2000-03-15
申请人： John Nicholas Argyropoulos , Jeffrey Scott Kanel , Michael Leo Tulchinsky , David James Miller , Donald Lee Morrison , Paul Foley , David Robert Bryant , Ailene Gardner Phillips , Brian Michael Roesch , John Robert Briggs , Max Min Lee , John Michael Maher
发明人： John Nicholas Argyropoulos , Jeffrey Scott Kanel , Michael Leo Tulchinsky , David James Miller , Donald Lee Morrison , Paul Foley , David Robert Bryant , Ailene Gardner Phillips , Brian Michael Roesch , John Robert Briggs , Max Min Lee , John Michael Maher
IPC分类号： C07C4550
CPC分类号： C07C45/50 , C07B63/00 , Y02P20/582 , C07C47/02
摘要： This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or more unreacted reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, one or more polar solvents and one or more nonpolar solvents by phase separation wherein (i) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5, (ii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.5, and (iii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more reaction byproducts is expressed by a partition coefficient ratio Ef3 which is a value greater than about 2.5.
摘要翻译：本发明涉及从连续生成的反应产物流体中分离一种或多种有机磷配体降解产物，一种或多种反应副产物和一种或多种产物，所述反应产物流体包含一种或多种未反应的反应物，金属 - 有机磷配体络合物催化剂，有机磷配体，所述一种或多种有机磷配体降解产物，所述一种或多种反应副产物，所述一种或多种产物，一种或多种极性溶剂和一种或多种非极性溶剂通过相分离，其中（i）极性相的选择性为相对于一种或多种产物的有机磷配体由分配系数比Ef1表示，分配系数比Ef1大于约2.5，（ii）有机磷配体的极性相对于一种或多种有机磷配体的选择性降解产物由分配系数比Ef2表示，该分配系数比Ef2是大于th的值约为2.5，和（iii）极性相对于一种或多种反应副产物的有机磷配体的选择性由分配系数比Ef3表示，该分配系数比Ef3是大于约2.5的值。

3. 发明授权

US06307110B1 Separation processes 有权
标题翻译：分离过程
公开(公告)号：US06307110B1
公开(公告)日：2001-10-23
申请号：US09526337
申请日：2000-03-15
申请人： John Nicholas Argyropoulos , Jeffrey Scott Kanel , Michael Leo Tulchinsky , David James Miller , Donald Lee Morrison , Paul Foley , David Robert Bryant , Ailene Gardner Phillips , Brian Michael Roesch , John Robert Briggs , Max Min Lee , John Michael Maher
发明人： John Nicholas Argyropoulos , Jeffrey Scott Kanel , Michael Leo Tulchinsky , David James Miller , Donald Lee Morrison , Paul Foley , David Robert Bryant , Ailene Gardner Phillips , Brian Michael Roesch , John Robert Briggs , Max Min Lee , John Michael Maher
IPC分类号： C07C4550
CPC分类号： C07C45/50 , C07B63/00 , Y02P20/582 , C07C47/02
摘要： This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or more unreacted reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, one or more nonpolar solvents and one or more polar solvents by phase separation wherein (i) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1which is a value greater than about 2.5, (ii) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.5, and (iii) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more reaction byproducts is expressed by a partition coefficient ratio Ef3 which is a value greater than about 2.5.
摘要翻译：本发明涉及从连续生成的反应产物流体中分离一种或多种有机磷配体降解产物，一种或多种反应副产物和一种或多种产物，所述反应产物流体包含一种或多种未反应的反应物，金属 - 有机磷配体络合物催化剂，有机磷配体，所述一种或多种有机磷配体降解产物，所述一种或多种反应副产物，所述一种或多种产物，一种或多种非极性溶剂和一种或多种极性溶剂通过相分离，其中（i）非极性相的选择性为相对于一种或多种产物的有机磷配体由分配系数比Ef1表示，分配系数比Ef1大于约2.5，（ii）非极性相对于有机磷配体相对于一种或多种有机磷配体降解的选择性产品由分配系数比Ef2表示，该分配系数比Ef2是一个很大的值（iii）非极性相对于一种或多种反应副产物对有机磷配体的选择性由分配系数比Ef3表示，该分配系数比Ef3是大于约2.5的值。

4. 发明授权

US06303829B1 Separation processes 有权
标题翻译：分离过程
公开(公告)号：US06303829B1
公开(公告)日：2001-10-16
申请号：US09526434
申请日：2000-03-15
申请人： Jeffrey Scott Kanel , John Nicholas Argyropoulos , Ailene Gardner Phillips , Brian Michael Roesch , John Robert Briggs , Max Min Lee , John Michael Maher , David Robert Bryant
发明人： Jeffrey Scott Kanel , John Nicholas Argyropoulos , Ailene Gardner Phillips , Brian Michael Roesch , John Robert Briggs , Max Min Lee , John Michael Maher , David Robert Bryant
IPC分类号： C07C4550
CPC分类号： C07C45/50 , C07B63/00 , Y02P20/582 , C07C47/02
摘要： This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or more nonpolar reaction solvents and one or more polar reaction solvents, wherein said process comprises (1) subjecting said reaction product fluid to fractional countercurrent extraction with at least two immiscible extraction solvents, said at least two immiscible extraction solvents comprising at least one nonpolar extraction solvent and at least one polar extraction solvent, to obtain a nonpolar phase comprising said metal-organophosphorus ligand complex catalyst, said optionally free organophosphorus ligand, said one or more nonpolar reaction solvents and said at least one nonpolar extraction solvent and a polar phase comprising said one or more products, said one or more polar reaction solvents and said at least one polar extraction solvent, and (2) recovering said polar phase from said nonpolar phase; wherein (i) the organophosphorus ligand has a partition coefficient Kp1 defined herein between the nonpolar phase and the polar phase of greater than about 5, and (ii) the one or more products have a partition coefficient Kp2 defined herein between the nonpolar phase and the polar phase of less than about 2.0.
摘要翻译：本发明涉及从反应产物流体中分离一种或多种产物的方法，其包括金属 - 有机磷配体配合物催化剂，任选的游离有机磷配体，所述一种或多种产物，一种或多种非极性反应溶剂和一种或多种极性反应溶剂其中所述方法包括（1）使所述反应产物流体用至少两种不混溶的萃取溶剂进行分数逆流萃取，所述至少两种不混溶的萃取溶剂包含至少一种非极性萃取溶剂和至少一种极性提取溶剂，以获得所述非极性相包含所述金属 - 有机磷配体配合物催化剂，所述任选游离的有机磷配体，所述一种或多种非极性反应溶剂和所述至少一种非极性萃取溶剂和包含所述一种或多种产物的极性相，所述一种或多种极性反应溶剂并表示至少一种极性提取溶剂，和（ 2）从所述非极性相中回收所述极性相; 其中（i）有机磷配体具有在非极性相和极性相之间定义的分配系数Kp1大于约5，和（ii）一种或多种产物在非极性相和非极性相之间具有本文定义的分配系数Kp2 极性相小于约2.0。

5. 发明授权

US06307109B1 Separation processes 有权
标题翻译：分离过程
公开(公告)号：US06307109B1
公开(公告)日：2001-10-23
申请号：US09526039
申请日：2000-03-15
申请人： Jeffrey Scott Kanel , David Robert Bryant , Brian Michael Roesch , Ailene Gardner Phillips
发明人： Jeffrey Scott Kanel , David Robert Bryant , Brian Michael Roesch , Ailene Gardner Phillips
IPC分类号： C07C4550
CPC分类号： B01J31/4015 , B01J31/1845 , B01J31/185 , B01J31/24 , B01J31/4046 , B01J31/4053 , B01J2231/32 , B01J2231/321 , B01J2231/50 , B01J2231/641 , B01J2531/16 , B01J2531/17 , B01J2531/18 , B01J2531/60 , B01J2531/80 , B01J2531/822 , C07B63/00 , C07F9/025 , Y02P20/582 , Y02P20/584
摘要： This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or more nonpolar reaction solvents and one or more polar reaction solvents, in which said reaction product fluid exhibits phase behavior depicted by FIG. 1, wherein said process comprises (1) supplying said reaction product fluid from a reaction zone to a separation zone, (2) controlling concentration of said one or more nonpolar reaction solvents and said one or more polar reaction solvents, temperature and pressure in said separation zone sufficient to obtain by phase separation two immiscible liquid phases depicted by regions 2, 4 and 6 of FIG. 1 comprising a polar phase and a nonpolar phase and to prevent or minimize formation of three immiscible liquid phases depicted by region 5 of FIG. 1 and one homogeneous liquid phase depicted by regions 1, 3 and 7 of FIG. 1, and (3) recovering said polar phase from said nonpolar phase or said nonpolar phase from said polar phase.
摘要翻译：本发明涉及从反应产物流体中分离一种或多种产物的方法，其包括金属 - 有机磷配体配合物催化剂，任选的游离有机磷配体，所述一种或多种产物，一种或多种非极性反应溶剂和一种或多种极性反应溶剂，其中所述反应产物流体表现出由图1描绘的相位行为。 1，其中所述方法包括（1）将反应产物流体从反应区供应到分离区，（2）控制所述一种或多种非极性反应溶剂和所述一种或多种极性反应溶剂的浓度，所述的一种或多种极性反应溶剂的温度和压力分离区足以通过相分离获得图2的区域2,4和6所示的两个不混溶的液相。 1包括极性相和非极性相，并且防止或最小化由图5的区域5描绘的三个不混溶的液相的形成。 1和图1的区域1,3和7所示的一个均匀液相。 1，和（3）从所述极性相从所述非极性相或所述非极性相回收所述极性相。

6. 发明授权

US06303830B1 Metal-ligand complex catalyzed processes 有权
标题翻译：金属 - 配体络合物催化方法
公开(公告)号：US06303830B1
公开(公告)日：2001-10-16
申请号：US09526638
申请日：2000-03-15
申请人： John Nicholas Argyropoulos , Jeffrey Scott Kanel , Michael Leo Tulchinsky , David James Miller , Donald Lee Morrison , Paul Foley , David Robert Bryant
发明人： John Nicholas Argyropoulos , Jeffrey Scott Kanel , Michael Leo Tulchinsky , David James Miller , Donald Lee Morrison , Paul Foley , David Robert Bryant
IPC分类号： C07C4550
CPC分类号： C07B63/00 , C07C67/58 , Y02P20/582 , C07C69/716
摘要： This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated ester reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, a polar solvent and a nonpolar solvent by phase separation wherein(i) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5, (ii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.5, and (iii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more reaction byproducts is expressed by a partition coefficient ratio Ef3 which is a value greater than about 2.5.
摘要翻译：本发明涉及一种从包含一种或多种未反应的不饱和酯反应物，金属 - 有机磷配位体配合物催化剂，任选的一种或多种反应产物流体的反应产物流体中分离一种或多种有机磷配体降解产物，一种或多种反应副产物和一种或多种甲酰酯产物的方法所述一种或多种有机磷配体降解产物，所述一种或多种反应副产物，所述一种或多种产物，极性溶剂和非极性溶剂通过相分离，其中（i）极性相对于有机磷配体的选择性对于一种或多种产物，由分配系数比Ef1表示，该分配系数比Ef1大于约2.5，（ii）极性相对于一种或多种有机磷配体降解产物的有机磷配体的选择性为由大于约2.5的值的分配系数比Ef2表示，a d（iii）极性相对于一种或多种反应副产物的有机磷配体的选择性由分配系数比Ef3表示，该分配系数比Ef3是大于约2.5的值。

7. 发明授权

US06252121B1 Metal-ligand complex catalyzed processes 有权
标题翻译：金属 - 配体络合物催化方法
公开(公告)号：US06252121B1
公开(公告)日：2001-06-26
申请号：US09361907
申请日：1999-07-27
申请人： John Nicholas Argyropoulos , David Robert Bryant , Michael Leo Tulchinsky , Jeffrey Scott Kanel , Paul Foley , Barry Brent Fish
发明人： John Nicholas Argyropoulos , David Robert Bryant , Michael Leo Tulchinsky , Jeffrey Scott Kanel , Paul Foley , Barry Brent Fish
IPC分类号： C07C4550
CPC分类号： C07B63/00 , B33Y40/00 , B33Y70/00 , C07B2200/09 , C07C29/141 , C07C45/49 , C07C45/50 , C07C45/78 , C07C45/80 , C07C47/32 , C07C209/26 , C07C253/30 , C07C2601/14 , Y02P20/582 , C07C47/347 , C07C47/36 , C07C31/276
摘要： This invention relates to a process for separating one or more cyclic products from a reaction product fluid comprising one or more cyclic reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, a non-polar solvent and said one or more cyclic products, wherein said process comprises: (1) reacting said one or more cyclic reactants in the presence of said metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand and non-polar solvent to form a multiphase reaction product fluid; and (2) separating said multiphase reaction product fluid to obtain a non-polar phase comprising said one or more cyclic reactants, metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand and non-polar solvent and a polar phase comprising said one or more cyclic products.
摘要翻译：本发明涉及从包含一种或多种环状反应物，金属 - 有机磷配位体配合物催化剂，任选的游离有机磷配体，非极性溶剂和所述一种或多种环状产物的反应产物流体中分离一种或多种环状产物的方法其中所述方法包括：（1）在所述金属 - 有机磷配体配合物催化剂，任选的游离有机磷配体和非极性溶剂的存在下使所述一种或多种环状反应物反应以形成多相反应产物流体; 和（2）分离所述多相反应产物流体以获得包含所述一种或多种环状反应物，金属 - 有机磷配体络合物催化剂，任选的游离有机磷配体和非极性溶剂的非极性相和包含所述一种或多种循环产品。

8. 发明授权

US06307108B1 Metal-ligand complex catalyzed processes 有权
标题翻译：金属 - 配体络合物催化方法
公开(公告)号：US06307108B1
公开(公告)日：2001-10-23
申请号：US09525651
申请日：2000-03-15
申请人： John Nicholas Argyropoulos , Jeffrey Scott Kanel , Michael Leo Tulchinsky , David James Miller , Donald Lee Morrison , Paul Foley , David Robert Bryant
发明人： John Nicholas Argyropoulos , Jeffrey Scott Kanel , Michael Leo Tulchinsky , David James Miller , Donald Lee Morrison , Paul Foley , David Robert Bryant
IPC分类号： C07C4550
CPC分类号： C07C227/08 , C07C67/347 , C07C67/58 , Y02P20/582 , C07C69/716 , C07C229/08
摘要： This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated ester reactants, a metal-organophoshorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, a nonpolar solvent and a polar solvent by phase separation wherein (i) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5 (ii) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.5, and (iii) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more reaction byproducts is expressed by a partition coefficient ratio Ef3 which is a value greater than about 2.5.
摘要翻译：本发明涉及一种从包含一种或多种未反应的不饱和酯反应物，金属有机磷配体配合物催化剂的反应产物流体中分离一种或多种有机磷配体降解产物，一种或多种反应副产物和一种或多种甲酰酯产物的方法，所述一种或多种有机磷配体降解产物，所述一种或多种反应副产物，所述一种或多种产物，非极性溶剂和极性溶剂通过相分离，其中（i）所述非极性相对于所述有机磷配体的选择性对于一种或多种产物，通过分配系数比Ef1表示，该分配系数比Ef1是大于约2.5的值（ii）表示非极性相对于一种或多种有机磷配体降解产物的非极性相对于有机磷配体的选择性通过大于约2的值的分配系数比Ef2。 5，和（iii）非极性相对于有机磷配体相对于一种或多种反应副产物的选择性由分配系数比Ef3表示，该分配系数比Ef3是大于约2.5的值。

9. 发明授权

US08785686B2 Process for recovering and recycling an acid catalyst 有权
标题翻译：回收和再循环酸催化剂的方法
公开(公告)号：US08785686B2
公开(公告)日：2014-07-22
申请号：US13431335
申请日：2012-03-27
申请人： Scott Donald Barnicki , Stephen Neal Falling , Jeffrey Scott Kanel , Robert Sterling Kline , Peter Borden Mackenzie , Andrew James Vetter
发明人： Scott Donald Barnicki , Stephen Neal Falling , Jeffrey Scott Kanel , Robert Sterling Kline , Peter Borden Mackenzie , Andrew James Vetter
IPC分类号： C07C59/06 , C07C51/48
CPC分类号： B01D11/0492 , B01J31/0225 , B01J31/0227 , B01J31/40 , B01J2231/321 , C07C51/12 , C07C51/48 , Y02P20/584 , C07C59/06
摘要： Disclosed is a process for the extractive recovery of an acid catalyst from an aqueous mixture of glycolic acid with an extraction solvent comprising a tertiary amine or an onium carboxylate compound, a modifier, and a diluent. The acid catalyst, which can comprise strong acids such as sulfuric acid, alkyl sulfonic acids, and fluoroalkyl sulfonic acids, can be recovered by back extraction with aqueous formaldehyde and recycled to a process for the preparation of glycolic acid by the acid-catalyzed carbonylation of formaldehyde. Also disclosed is a process for the preparation of glycolic acid by the acid-catalyzed hydrocarboxylation of formaldehyde.
摘要翻译：公开了一种从乙醇酸的水性混合物与包含叔胺或羧酸铝化合物，改性剂和稀释剂的萃取溶剂萃取回收酸催化剂的方法。可以包含强酸如硫酸，烷基磺酸和氟代烷基磺酸的酸催化剂可以通过用甲醛水溶液反萃取回收，并循环至通过酸催化的羰基化反应制备乙醇酸的方法甲醛。还公开了通过酸催化的甲醛加氢制备乙醇酸的方法。

10. 发明申请

US20120215027A1 PROCESS FOR RECOVERING AND RECYCLING AN ACID CATALYST 有权
标题翻译：回收和回收酸催化剂的方法
公开(公告)号：US20120215027A1
公开(公告)日：2012-08-23
申请号：US13431335
申请日：2012-03-27
申请人： Scott Donald Barnicki , Stephen Neal Falling , Jeffrey Scott Kanel , Robert Sterling Kline , Peter Borden Mackenzie , Andrew James Vetter
发明人： Scott Donald Barnicki , Stephen Neal Falling , Jeffrey Scott Kanel , Robert Sterling Kline , Peter Borden Mackenzie , Andrew James Vetter
IPC分类号： C07C51/12
CPC分类号： B01D11/0492 , B01J31/0225 , B01J31/0227 , B01J31/40 , B01J2231/321 , C07C51/12 , C07C51/48 , Y02P20/584 , C07C59/06
摘要： Disclosed is a process for the extractive recovery of an acid catalyst from an aqueous mixture of glycolic acid with an extraction solvent comprising a tertiary amine or an onium carboxylate compound, a modifier, and a diluent. The acid catalyst, which can comprise strong acids such as sulfuric acid, alkyl sulfonic acids, and fluoroalkyl sulfonic acids, can be recovered by back extraction with aqueous formaldehyde and recycled to a process for the preparation of glycolic acid by the acid-catalyzed carbonylation of formaldehyde. Also disclosed is a process for the preparation of glycolic acid by the acid-catalyzed hydrocarboxylation of formaldehyde.
摘要翻译：公开了一种从乙醇酸的水性混合物与包含叔胺或羧酸铝化合物，改性剂和稀释剂的萃取溶剂萃取回收酸催化剂的方法。可以包含强酸如硫酸，烷基磺酸和氟代烷基磺酸的酸催化剂可以通过用甲醛水溶液反萃取回收，并循环至通过酸催化的羰基化反应制备乙醇酸的方法甲醛。还公开了通过酸催化的甲醛加氢制备乙醇酸的方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式