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公开(公告)号:US20160083406A1
公开(公告)日:2016-03-24
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 liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the diphosphonite-containing compounds.
摘要翻译: 本文公开了使用液 - 液萃取从含有有机单腈和有机二腈的混合物中回收含二亚磷酸盐的化合物的方法。 还公开了用于提高含有二亚磷酸盐的化合物的提取性的处理。
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公开(公告)号:US20170152211A1
公开(公告)日:2017-06-01
申请号:US15320904
申请日:2015-06-25
发明人: William J. TENN, III
IPC分类号: C07C209/48 , C07C253/34 , C07C253/10
CPC分类号: C07C209/48 , C07C253/10 , C07C253/34 , Y02P20/125 , Y02P20/582 , C07C211/12 , C07C255/04
摘要: Phosphorus-containing ligands are recovered from mixtures comprising 3-pentenenitrile (3PN) and adiponitrile (ADN), using liquid-liquid extraction. ADN is produced by hydrocyanation of 3PN. The ADN is hydrogenated to produce a hexa-methyiene diamine (HMD) and at least one byproduct including bis-hexamethylene triamine (BHMT) or 1,2-diaminocyclohexane. At least a portion of the HMD product or byproduct is used to enhance the liquid-liquid extraction to recover phosphorus-containing ligand.
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公开(公告)号:US20150299106A1
公开(公告)日:2015-10-22
申请号:US14649644
申请日:2013-12-05
IPC分类号: C07C253/30 , B01J21/08 , B01J27/053 , B01J23/30 , B01J23/44 , B01J23/06 , B01J23/26 , B01J23/20 , B01J29/18 , B01J23/10 , B01J21/10
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-aluminium 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 polarising 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:US20170197909A1
公开(公告)日:2017-07-13
申请号:US15320898
申请日:2015-06-25
发明人: William J. TENN, III
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:US20160311763A1
公开(公告)日:2016-10-27
申请号:US15102792
申请日:2014-12-18
IPC分类号: C07C255/22 , B01J23/02 , B01J23/06 , B01J27/236 , B01J27/26 , B01J21/06 , B01J23/10 , B01J23/04 , 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.
摘要翻译: 本发明涉及一种在烯烃上加入氰化氢的改进方法,特别涉及使用特定的氧化铝催化反应。 氧化铝催化剂必须具有以碱金属氧化物和/或碱土金属氧化物的形式测量的碱金属和/或碱土金属的总量小于3,000ppm重量的总碱金属和/或碱土金属含量。
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公开(公告)号:US20160222040A1
公开(公告)日:2016-08-04
申请号:US15015252
申请日:2016-02-04
发明人: William J. TENN, III
IPC分类号: C07F9/06 , C07C253/30 , B01J31/18
CPC分类号: C07F9/06 , B01J31/185 , B01J31/2221 , B01J2231/322 , B01J2231/70 , B01J2531/847 , C07C253/10 , C07C253/30 , C07F9/145 , C07F9/4006 , C07F9/65744 , C07F15/04
摘要: The invention provides a method of forming a phosphonate diester compound from a ligand hydrolysis product (LHP) of a phosphite ligand used in a nickel-phosphite hydrocyanation catalyst, such as for conversion of 3-pentenenitrile to adiponitrile, which serves to eliminate acidic LHP compound for a hydrocyanation reaction milieu where the acidic LHP can catalyze further catalyst ligand destruction. The invention further provides phosphonate disester compounds prepared by alkylation of diarylphosphite LHP in the presence of a nickel-phosphite catalyst comprising a bidentate ligand, and a continuous hydrocyanation process for production of adiponitrile wherein catalyst ligand breakdown is inhibited through inactivation of ligand hydrolysis products towards further breakdown. A method of stabilizing a hydrocyanation catalyst is provided.
摘要翻译: 本发明提供了一种由亚磷酸氢氰化催化剂中使用的亚磷酸酯配位体的配体水解产物(LHP)形成膦酸二酯化合物的方法,例如用于将3-戊烯腈转化成己二腈,其用于消除酸性LHP化合物 对于氢化反应环境,其中酸性LHP可以催化另外的催化剂配体破坏。 本发明还提供了在含有二齿配位体的亚磷酸二氢镍催化剂的存在下烷基化亚磷酸二氢钠LHP制备的膦酸酯二酯化合物,以及用于生产己二腈的连续氢氰化方法,其中通过使配体水解产物失活而进一步抑制催化剂配体分解 分解。 提供了一种稳定氢氰化催化剂的方法。
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公开(公告)号:US20150368189A1
公开(公告)日:2015-12-24
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 aluminium oxide catalyst. The process comprises providing an aluminium 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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