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公开(公告)号:US20150158812A1
公开(公告)日:2015-06-11
申请号:US14404068
申请日:2013-05-24
发明人: Sudhir Aki , William J. Tenn, III , Thomas E. Vos
IPC分类号: C07C253/30
CPC分类号: C07C253/30 , C07F9/145 , C07F9/4006 , C07F9/65744 , C07F15/04
摘要: A process of stabilizing a bidentate or tridentate phosphorus-based phosphite ester ligand or mixture thereof in a hydrocyanation reaction milieu comprising water, wherein the ligand or ligand mixture comprises one or more of (i) a bidentate biphosphite ligand of formula (III), (R12—X12) (R13—X13) P—X14—Y—X24—P(X22—R22) (X23—R23) or (ii) a tridentate triphosphite ligand of formula (IIIA) (R12—X12) (R13—X13) P—X14—Y—X32—P(X34—R34)—(X33—Y2—R24—P(X23—R23)—(X22—R22) where each X is oxygen or a bond and each Y is an optionally substituted C6-C20 arylene group, comprising admixing the bidentate and/or tridentate with a stabilizing amount of one or more monodentate phosphite ligand of formula P(X1—R1)(X2—R2)(X3—R3) where each X is oxygen or a bond, wherein the monodentate ligand has a rate of hydrolysis greater than the rate of hydrolysis of the bidentate or tridentate ligand in the presence of water in a hydrocyanation reaction milieu, and thereby preserve concentrations and proportions of the bidentate and/or tridentate ligand(s) in the ligand blend.
摘要翻译: 在包含水的氢化氰化反应环境中稳定二齿或三齿磷基亚磷酸酯配体或其混合物的方法,其中配体或配体混合物包含(i)式(III)的二齿二亚磷酸酯配体,( R12-X12)(R13-X13)P-X14-Y-X24-P(X22-R22)(X23-R23)或(ii)式(IIIA)(R12-X12)(R13-X13)的三齿三亚磷酸酯配体 )X-X-14-Y-X32-P(X34-R34) - (X33-Y2-R24-P(X23-R23) - (X22-R22)其中X为氧或键, C6-C20亚芳基,其包括将二齿和/或三齿与稳定量的一种或多种式P(X1-R1)(X2-R2)(X3-R3)的单齿亚磷酸酯配体(X-R 3)混合,其中每个X为氧或 键,其中所述单齿配体的水解速率大于在氢氰化反应环境中的水存在下二齿或三齿配体的水解速率,并且th 在配体共混物中保留双齿和/或三齿配体的浓度和比例。
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公开(公告)号:US10759741B2
公开(公告)日:2020-09-01
申请号:US14904726
申请日:2014-07-16
IPC分类号: C07C253/10 , C07C253/34 , B01D3/14 , B01J31/18
摘要: A solvent is at least partially separated from a catalyst. The catalyst comprises nickel and a bidentate phosphorus-containing ligand. The method for separation involves distilling a catalyst solution. The ratio of 2-pentenenitrile to 3-pentenenitrile in distillation column bottoms is controlled to reduce the amount of 3-pentenenitrile which is isomerized to form 2-methyl-3-butenenitrile. Isomerization of 3-pentenenitrile to 2-methyl-3-butenenitrile and subsequent isomerization of 2-methyl-3-butenenitrile to 2-methyl-2-butenenitrile, and/or hydrocyanation of 2-methyl-3-butenenitrile to methylglutaronitrile represents a loss in adiponitrile yield in a process for making adiponitrile.
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公开(公告)号:US09440912B2
公开(公告)日:2016-09-13
申请号:US14649644
申请日:2013-12-05
IPC分类号: C07C235/30 , C07C255/07 , B01J23/06 , B01J23/10 , B01J23/26 , B01J23/70 , C07C253/30 , B01J21/08 , B01J21/10 , B01J23/20 , B01J23/30 , B01J23/44 , B01J27/053 , B01J29/18
CPC分类号: C07C253/30 , B01J21/08 , B01J21/10 , B01J23/06 , B01J23/10 , B01J23/20 , B01J23/26 , B01J23/30 , B01J23/44 , B01J27/053 , B01J29/18 , C07C255/07
摘要: Disclosed is a process for isomerizing cis-2-pentenenitrile to 3-pentenenitrile in the presence of a non-aluminum metal oxide catalyst, wherein: (a) the metal in the catalyst has an oxidation state in the range from +1 to +4; (b) the metal has a cation radius in the range from 0.35 to 1.0 Å; (c) the metal of the catalyst has a polarizing power, C/r, is in the range from 2 to >8, wherein C is the charge of the metal and r is the ionic radius in Å; (d) the bond network of the catalyst has a % ionicity of >20; (e) the metal oxide has an acidity strength in the range from strong to very weak; and (f) the metal oxide has a basicity (nucleophilicity) strength of weak to strong.
摘要翻译: 公开了一种在非铝金属氧化物催化剂存在下将顺式-2-戊烯腈异构化为3-戊烯腈的方法,其中:(a)催化剂中的金属的氧化态为+1至+4 ; (b)金属的阳离子半径在0.35至1.0的范围内; (c)催化剂的金属具有极化功率,C / r在2至> 8的范围内,其中C是金属的电荷,r是的离子半径; (d)催化剂的键合网络具有> 20的%离子性; (e)金属氧化物的酸度强度在强到非常弱的范围内; 和(f)金属氧化物具有弱至强的碱性(亲核性)强度。
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公开(公告)号:US09914700B2
公开(公告)日:2018-03-13
申请号:US15320898
申请日:2015-06-25
发明人: William J. Tenn, III
IPC分类号: C07C253/34 , B01D3/12 , B01J31/18 , B01J31/40 , B01J38/56 , B01J38/04 , B01D11/04 , B01D11/00
CPC分类号: C07C253/34 , B01D3/12 , B01D11/0446 , B01D11/0461 , B01D11/0492 , B01D2011/002 , B01J31/185 , B01J31/1865 , B01J31/40 , B01J31/4053 , B01J38/04 , B01J38/56 , B01J2231/322 , B01J2531/002 , B01J2531/847 , Y02P20/582 , C07C255/04 , C07C255/07
摘要: Disclosed herein are methods for recovering phosphorus-containing ligand from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the phosphorus-containing ligand.
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公开(公告)号:US09586892B2
公开(公告)日:2017-03-07
申请号:US14649634
申请日:2013-12-05
IPC分类号: C07C253/30
CPC分类号: C07C253/30 , C07C255/07
摘要: Pentenenitrile oligomers formed in a process for isomerizing cis-2-pentenenitrile to 3-pentenenitrile are minimized in the presence of an aluminum oxide catalyst. The process comprises providing an aluminum oxide catalyst having an alkali metal and/or alkaline earth metal and/or iron content, measured in the form of alkali metal oxide and/or alkaline earth metal oxide and/or iron oxide, respectively of less than 5000 ppm by weight.
摘要翻译: 在氧化铝催化剂存在下使在顺式-2-戊烯腈异构化为3-戊烯腈的方法中形成的戊烯腈低聚物最小化。 该方法包括提供具有碱金属和/或碱土金属和/或铁含量的氧化铝催化剂,其以碱金属氧化物和/或碱土金属氧化物和/或氧化铁的形式分别测量为小于5000 重量ppm。
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公开(公告)号:US09834506B2
公开(公告)日:2017-12-05
申请号:US15102792
申请日:2014-12-18
IPC分类号: C07C255/22 , C07C253/10 , B01J21/06 , B01J23/02 , B01J23/04 , B01J23/06 , B01J23/10 , B01J27/236 , B01J27/26 , B01J31/06
CPC分类号: C07C255/22 , B01J21/066 , B01J23/02 , B01J23/04 , B01J23/06 , B01J23/10 , B01J27/236 , B01J27/26 , B01J31/06 , C07C253/10 , C07C255/09
摘要: The present invention relates to an improved process for addition of hydrogen cyanide across olefins and, in particular, to the use of a specific aluminum oxide to catalyze the reaction. The aluminum oxide catalyst must have total alkali metal and/or alkaline earth metal content, measured in the form of alkali metal oxide and/or alkaline earth metal oxide, of less than 3,000 ppm by weight.
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公开(公告)号:US09676800B2
公开(公告)日:2017-06-13
申请号:US14962095
申请日:2015-12-08
CPC分类号: C07F9/4841 , B01D11/0426 , B01D11/0434 , B01D11/0488 , B01D11/0492 , B01D2011/002 , B01J31/1865 , B01J31/4053 , B01J38/56 , B01J2231/343 , B01J2531/847 , Y02P20/582 , Y02P20/584
摘要: Disclosed herein are methods for recovering diphosphonite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using multistage countercurrent liquid-liquid extraction. Recovery is enhanced with one or more method steps. In a first step, a portion of the heavy phase from the settling section of the first stage is recycled to the settling section of the first stage. In a second step, a portion of the light phase from the settling section of the first stage is recycled to the mixing section of the first stage. In a third step, the first stage takes place in a mixer-settler, a Lewis base is introduced into the settling section of the first stage, and a complex of Lewis acid and Lewis base is formed in this settling section. In a fourth step, a polyamine is added to the first stage.
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公开(公告)号:US09388204B2
公开(公告)日:2016-07-12
申请号:US14367156
申请日:2012-11-20
CPC分类号: C07F9/65746 , B01D11/0426 , B01D11/0457 , B01J31/185 , B01J31/4053 , B01J2531/847 , C07F9/141 , C07F9/145 , Y02P20/582 , Y02P20/584
摘要: Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the diphosphite-containing compounds.
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公开(公告)号:US09133223B2
公开(公告)日:2015-09-15
申请号:US14367167
申请日:2012-11-20
发明人: William J. Tenn, III
IPC分类号: C07F9/145 , B01J31/22 , B01D11/04 , C07F9/6574
CPC分类号: C07F9/145 , B01D11/0426 , B01D11/0457 , B01J31/22 , B01J2231/322 , C07F9/65746 , Y02P20/582
摘要: Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the diphosphite-containing compounds.
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