专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

WO2021126421A1 PROCESSES FOR PREPARING ISOPRENE AND MONO-OLEFINS COMPRISING AT LEAST SIX CARBON ATOMS 审中-公开
公开(公告)号：WO2021126421A1
公开(公告)日：2021-06-24
申请号：PCT/US2020/059930
申请日：2020-11-11
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： BIGI, Marinus A. , BRAMMER, Michael A. , MILLER, Glenn A. , SINGH, Amarnath
IPC分类号： C07C45/50 , C07C29/141 , C07C45/82 , C07C1/24 , C07C47/02 , C07C31/125 , C07C11/10 , C07C11/18 , C07C11/107 , C07C11/02
摘要： The present invention relates to processes for preparing isoprene and mono-olefins comprising at least six carbon atoms. In one aspect, a process comprises (a) hydroformylating a mixed C4 olefin stream, wherein the mixed C4 olefin stream comprises 1-butene, 2-butene, and optionally isobutene, with a hydroformylation catalyst, wherein the hydroformylation catalyst comprises rhodium with monodentate organophosphorous ligand and optionally polydentate organophosphorous ligand, to produce a mixture comprising linear and branched C5 aldehydes; (b) separating the branched C5 aldehydes from the linear C5 aldehydes to provide a branched C5 aldehyde stream and a linear C5 aldehyde stream; (c) dehydrating the branched C5 aldehydes in the branched C5 aldehyde stream using a dehydration catalyst to form a stream comprising isoprene; (d) hydrogenating the linear C5 aldehydes in the linear C5 aldehyde stream to form a C5 alcohol stream; (e) dehydrating the C5 alcohols in the C5 alcohol stream with a second dehydration catalyst to form a C5 olefin stream; (f) hydroformylating the C5 olefins in the C5 olefin stream to generate a C6 aldehyde stream; (g) hydrogenating the C6 aldehydes in the C6 aldehyde stream to form a C6 alcohol stream; and (h) dehydrating the C6 alcohols in the C6 alcohol stream with a third dehydration catalyst to form a C6 olefin stream.

12. 发明申请

WO2020112373A1 HYDROFORMYLATION PROCESS 审中-公开
公开(公告)号：WO2020112373A1
公开(公告)日：2020-06-04
申请号：PCT/US2019/061509
申请日：2019-11-14
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： BRAMMER, Michael A. , GILES, Jason F. , MILLER, Glenn A.
IPC分类号： C07C45/50 , C07C47/02
摘要： Embodiments of the present invention are directed to processes to improve rhodium accountability in continuous liquid recycle hydroformylation processes. In some embodiments, a process comprises contacting in a reaction zone reactants comprising mixed C8 olefins or mixed C9 olefins, hydrogen, and carbon monoxide in the presence of a catalyst comprising rhodium and an organomonophosphite ligand to form a reaction fluid, wherein the reaction fluid is introduced to a strip gas vaporizer to produce a product stream and a vaporizer tails stream, and wherein the vaporizer tails stream comprises at least 1.2 percent by weight C8 internal olefins or at least 1.3 percent by weight C9 internal olefins.

13. 发明申请

WO2018236623A1 PROCESSES FOR PURIFYING LIGANDS 审中-公开
公开(公告)号：WO2018236623A1
公开(公告)日：2018-12-27
申请号：PCT/US2018/037096
申请日：2018-06-12
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： BIGI, Marinus A. , BRAMMER, Michael A. , MILLER, Glenn A.
IPC分类号： C07F9/6574
摘要： Embodiments of the present invention are directed to processes for purifying ligands such as organopolyphosphite ligands. In one embodiment, a process comprises: (a) receiving a solid organopolyphosphite compound that has been recrystallized or triturated at least once, wherein the solid organopolyphosphite compound comprises greater than one weight percent of an oxidized phosphite impurity and wherein the organopolyphosphite compound is substantially free of solvent; (b) slurrying the solid organopolyphosphite compound in a C 2 or higher alcohol at a temperature of at least 60°C for at least 20 minutes to reduce the oxidized phosphite impurity in the solid phase; and (c) removing liquid comprising dissolved oxidized phosphite impurity from the slurry, wherein the residual oxidized phosphite impurity content of the organopolyphosphite compound following step (c) is 1 weight percent or less.

14. 发明申请

WO2017058475A1 PROCESSES FOR PRODUCING ORGANOPHOSPHOROUS COMPOUNDS 审中-公开
标题翻译：生产有机磷化合物的方法
公开(公告)号：WO2017058475A1
公开(公告)日：2017-04-06
申请号：PCT/US2016/050481
申请日：2016-09-07
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： BIGI, Marinus A. , BRAMMER, Michael A. , MILLER, Glenn A.
IPC分类号： C07F9/6574
CPC分类号： C07F9/65746
摘要： The present invention relates to processes for producing organophosporous compositions having low acid content as well as processes for reprocessing partially degraded organophosporous compositions that contain high levels of phosphorous acid. In one embodiment, a process comprises: (a) receiving a solid organophosphite compound that has been recrystallized or triturated, wherein the solid organophosphite compound comprises phosphorous acid; (b) dissolving the solid organophosphite compound in a an aromatic hydrocarbon solvent in the absence of water and free amine, wherein the hydrocarbon solvent comprises an aromatic hydrocarbon, a saturated aliphatic hydrocarbon, or a mixture thereof; and (c) removing undissolved phosphorous acid from the solution, wherein the acid content of the organophosphite following step (c) is 30 ppm or less.
摘要翻译：本发明涉及用于生产具有低酸含量的有机磷组合物的方法以及用于再处理含有高含量亚磷酸的部分降解的有机磷组合物的方法。在一个实施方案中，方法包括：（a）接收已经重结晶或研磨的固体有机亚磷酸酯化合物，其中固体有机亚磷酸酯化合物包括亚磷酸; （b）在不存在水和游离胺的情况下将固体有机亚磷酸酯化合物溶解在芳烃溶剂中，其中所述烃溶剂包括芳族烃，饱和脂族烃或其混合物; 和（c）从溶液中除去未溶解的亚磷酸，其中步骤（c）之后的有机亚磷酸酯的酸含量为30ppm以下。

15. 发明申请

WO2015153070A1 HYDROFORMYLATION PROCESS 审中-公开
标题翻译：氢化工艺
公开(公告)号：WO2015153070A1
公开(公告)日：2015-10-08
申请号：PCT/US2015/019560
申请日：2015-03-10
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： MILLER, Glenn A. , EISENSCHMID, Thomas C. , BRAMMER, Michael A. , BECKER, Michael C. , WATSON, Rick B.
IPC分类号： C07C45/50
CPC分类号： C07C45/80 , C07C45/50 , Y02P20/582 , C07C47/02
摘要： A hydroformylation process wherein a water-soluble amine is contacted with the reaction fluid, liquid from the reactor is sent to an extraction zone, and a neutralized phosphorus acidic compound is at least partially removed from the extraction zone.
摘要翻译：加氢甲酰化方法，其中水溶性胺与反应流体接触，将来自反应器的液体送至提取区，中和的磷酸性化合物至少部分地从萃取区除去。

16. 发明申请

WO2015094813A1 HYDROFORMYLATION PROCESS 审中-公开
标题翻译：氢化工艺
公开(公告)号：WO2015094813A1
公开(公告)日：2015-06-25
申请号：PCT/US2014/069315
申请日：2014-12-09
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： MILLER, Glenn A. , GILES, Jason F. , COX, Irvin B.
IPC分类号： C07C45/50 , C07C47/02
CPC分类号： C07C45/50 , B01J31/24 , B01J2231/321 , B01J2531/822 , C07C45/78 , C07C47/02
摘要： A multi-reactor hydroformylation process wherein a common product-catalyst separation zone is employed.
摘要翻译：多反应器加氢甲酰化方法，其中使用通用产物 - 催化剂分离区。

17. 发明申请

WO2023086718A1 PROCESSES FOR RECOVERING RHODIUM FROM HYDROFORMYLATION PROCESSES 审中-公开
公开(公告)号：WO2023086718A1
公开(公告)日：2023-05-19
申请号：PCT/US2022/078046
申请日：2022-10-13
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： BRAMMER, Michael A. , LIU, Yujun , SINGH, Amarnath , MILLER, Glenn A. , BACKES, Adrian Francis , BETHAM, Michael
IPC分类号： C22B11/00 , C22B3/22 , C22B7/00 , B01J31/40 , B01J31/18 , C07C45/50
摘要： The present disclosure relates to processes for recovering rhodium from a hydroformylation process. In one aspect, a tails stream from a product-catalyst separation zone is provided to at least one organic solvent nanofiltration separation membrane, wherein a final permeate stream exits a final organic solvent nanofiltration separation membrane, wherein the rhodium concentration in the final permeate stream is lower than the rhodium concentration in the tails stream. The permeate stream is incinerated on-site to create a rhodium-containing ash.

18. 发明申请

WO2022250790A1 PROCESSES FOR THE VAPOR PHASE HYDROGENATION OF ALDEHYDES 审中-公开
公开(公告)号：WO2022250790A1
公开(公告)日：2022-12-01
申请号：PCT/US2022/023600
申请日：2022-04-06
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： MILLER, Glenn A. , YANG, Jin
IPC分类号： C07C29/141 , C07C31/12 , C07C45/85 , C07C47/02
摘要： The present invention relates to processes for the vapor phase hydrogenation of aldehydes. In one embodiment, the process comprises (a) providing a liquid aldehyde stream to a vaporization system to generate a vaporous aldehyde stream in the presence of a weakly basic amine, wherein the weakly basic amine has a normal boiling point that is at least 50 C greater than the normal boiling point of the aldehyde, wherein the weakly basic amine reacts with acidic impurities in the liquid aldehyde stream to form ammonium salt adducts, and wherein the ammonium salt adducts and any excess weakly basic amine are removed as a heavies purge from the vaporization system; (b) combining the vaporous aldehyde stream with a hydrogen stream by either providing a hydrogen stream to the vaporization system, by adding a hydrogen stream to the vaporous aldehyde stream following step (a), or by a combination thereof; (c) providing the combined vaporous aldehyde and hydrogen stream to a vapor phase hydrogenation zone; and (d) hydrogenating the vaporous aldehyde in the vapor phase hydrogenation zone.

19. 发明申请

WO2022211930A1 HYDROFORMYLATION PROCESSES 审中-公开
公开(公告)号：WO2022211930A1
公开(公告)日：2022-10-06
申请号：PCT/US2022/017496
申请日：2022-02-23
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： GILES, Jason F. , MILLER, Glenn A.
IPC分类号： C07C45/50 , C07C47/02
摘要： This disclosure relates to continuous hydroformylation processes. In one aspect, a continuous hydroformylation process comprises: (a) contacting CO, H2, and at least one olefin in the presence of a hydroformylation catalyst in a reaction fluid in at least two reaction zones under hydroformylation conditions sufficient to form at least one aldehyde product, wherein the hydroformylation catalyst comprises a catalytic metal and a ligand and wherein a reaction temperature in the first reaction zone is controlled using a first heat exchanger; and (b) recovering at least a portion of the hydroformylation catalyst from a product stream and recycling at least a portion of the recovered hydroformylation catalyst through the first reaction zone. The heat evolution in the first reaction zone is reduced by reducing the reaction rate in the first reaction zone and increasing the reaction rate in a downstream reaction zone to insure sufficient heat removal capacity remains on the heat exchanger in the first reaction zone to insure stable control of the reaction at a target reaction temperature by diverting a portion of an olefin feed stream and/or a portion of the recycled hydroformylation catalyst to a reaction zone downstream from the first reaction zone.

20. 发明申请

WO2022132372A1 PROCESSES TO IMPROVE CATALYTIC METAL ACCOUNTABILITY IN HYDROFORMYLATION PROCESSES 审中-公开
公开(公告)号：WO2022132372A1
公开(公告)日：2022-06-23
申请号：PCT/US2021/059810
申请日：2021-11-18
申请人： DOW TECHNOLOGY INVESTMENTS LLC
发明人： BRAMMER, Michael A. , GILES, Jason F. , MILLER, Glenn A.
IPC分类号： C07C45/50 , C07C47/02
摘要： Embodiments of the present invention are directed to processes to improve rhodium accountability in continuous liquid recycle hydroformylation processes. In some embodiments, a process comprises contacting in a reaction zone reactants comprising C7-C20 olefins, hydrogen, and carbon monoxide in the presence of a catalyst comprising rhodium and an organomonophosphite ligand to form a reaction fluid, wherein the feed rate of olefins to the reaction zone is greater than 100 kilograms/hour; providing the reaction fluid to a strip gas vaporizer to produce a product stream and a vaporizer tails stream; measuring the C7-C20 olefin content in the vaporizer tails stream; and adding a C7-C20 olefins stream comprising at least 50 weight percent C7-C20 olefins to the vaporizer tails stream to maintain the C7-C20 content in vaporizer tails stream above 2 percent by weight.

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