公开(公告)号：US20160168082A1

公开(公告)日：2016-06-16

申请号：US14941167

申请日：2015-11-13

申请人： BASF SE

发明人： Tim Jungkamp ,  Robert BAUMANN ,  Michael BARTSCH ,  Gerd HADERLEIN ,  Hermann LUYKEN ,  Jens SCHEIDEL ,  Tobias AECHTNER ,  Peter PFAB ,  Petra DECKERT ,  Wolfgang SIEGEL ,  Peter BASSLER

IPC分类号： C07C253/30

CPC分类号： C07C253/30 ,  C07C253/10 ,  Y02P20/582 ,  C07C255/07

摘要： A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.

摘要翻译： 描述了制备3-戊烯腈的方法，其特征在于以下方法步骤：（a）在至少一种溶解或分散的异构化催化剂上异构化包含2-甲基-3-丁烯腈的反应物流，得到流1，其包含 至少一种异构化催化剂，2-甲基-3-丁烯腈，3-戊烯腈和（Z）-2-甲基-2-丁烯腈，（b）蒸馏物流1，得到作为顶部产物的物流2，其包含2-甲基 -3-丁烯腈，3-戊烯腈和（Z）-2-甲基-2-丁烯腈，以及作为底部产物的料流3，其包含至少一种异构化催化剂，（c）蒸馏物流2以获得物流4， 与流2相比，基于流2中的所有五烯丙烯的总和和作为底部产物的流5，与流2相比富含（Z）-2-甲基-2-丁烯腈的顶部产物与流2相比较 ，富含3-戊烯腈和2-甲基-3-丁烯腈，基于所有戊烯腈的总和 （d）蒸馏流5以获得作为底部产物的流6，其包含3-戊烯腈和作为顶部产物的料流7，其包含2-甲基-3-丁烯腈。

公开(公告)号：US20180354891A1

公开(公告)日：2018-12-13

申请号：US16061007

申请日：2016-12-07

申请人： BASF SE

发明人： Constanze FRANZKE ,  Axel FRANZKE ,  Armin STAMM ,  Markus HARTMANN ,  Robert BAUMANN

IPC分类号： C07C229/36 ,  C07C227/18 ,  C07C227/42 ,  C07C227/02 ,  C11D3/33

CPC分类号： C07C229/36 ,  C07C227/02 ,  C07C227/10 ,  C07C227/18 ,  C07C227/42 ,  C11D3/33

摘要： Process for manufacturing a crystalline alkali metal salt of the general formula (I) [R1—CH(COO)—N(CH2—COO)2]M13 (I) wherein M1 is selected from alkali metal cations, same or different, R1 is selected from C1-C4-alkyl and CH2CH2COOM1, comprising the step of (b) crystallizing said alkali metal salt from an aqueous solution containing in the range of from 5 to 30% by weight of alkali metal hydroxide, referring to said aqueous solution.

公开(公告)号：US20170217874A1

公开(公告)日：2017-08-03

申请号：US15125850

申请日：2015-03-11

申请人： BASF SE

发明人： Hermann LUYKEN ,  Stephanie JAEGLI ,  Michael LORENZ ,  Gordon BRASCHE ,  Markus JEGELKA ,  Barbara BECKER ,  Robert BAUMANN ,  Johann-Peter MELDER ,  Boris BUSCHHAUS ,  Thomas KRUG

IPC分类号： C07C209/84

CPC分类号： C07C209/84 ,  C07C209/16 ,  C07C209/48 ,  C07C213/04 ,  C07C253/08 ,  C07C253/30 ,  C07C211/10 ,  C07C255/16 ,  C07C255/25 ,  C07C215/08

摘要： The present invention relates to a process for purifying ethylenediamine (EDA) by distillation, wherein the process comprises the steps a) and b). In step a), a mixture (G1) comprising water, EDA and N-methylethylenediamine (N-MeEDA) is fed into a distillation apparatus (D1), and the major part of the water comprised in the mixture (G1) is separated off overhead at a pressure of greater than 4.8 bara. From the bottom of (D1), the water-enriched mixture (G2) is fed into a distillation apparatus (D2) in step b). At the top of (D2), the major part of the N-MeEDA is distilled off. The stream (S3) obtained from the bottom of (D2) comprises EDA, with the components water and N-MeEDA comprised in the mixture (G1) having been largely or completely removed. Further distillation steps can optionally be carried out in order to obtain pure EDA, for example when diethylenetriamine (DETA) is additionally comprised in the mixture (G1). If ammonia is additionally comprised in the mixture (G1), an ammonia removal is preferably additionally carried out before carrying out the step a) in the process of the invention.

公开(公告)号：US20180237728A1

公开(公告)日：2018-08-23

申请号：US15554466

申请日：2016-03-02

申请人： BASF SE

发明人： Constanze FRANZKE ,  Marta REINOSO GARCIA ,  Robert BAUMANN ,  Thomas GREINDL

IPC分类号： C11D3/33 ,  C07C253/00 ,  C07C227/18

CPC分类号： C11D3/33 ,  C07C227/18 ,  C07C253/00 ,  C07C253/06 ,  C07C255/25 ,  C07C229/16 ,  C07C229/24

摘要： Process for preparation of a mixture of methyl glycine diacetic acid (MGDA) or its respective mono-, di-, trialkali metal salt or its respective mono-, di- or tri-ammonium salt or mixtures thereof, and glutamic acid diacetic acid (GLDA) or its respective mono-, di-, tri-, or tetra-alkali metal or mono-, di-, tri- or tetra-ammonium salt or mixtures thereof, wherein said process com-prises the steps of: (a) dissolution in water of (a1) alanine in its L- or D-enantiomeric form or its respective monoalkali metal salt or mixtures thereof, and (a2) glutamic acid as L- or D-enantiomer or its respective mono-, or dialkali metal or mixtures thereof, wherein the molar ratio of alanine to glutamic acid is in the range of from 1:9 to 9:1, (b) converting the mixture obtained in step (a) with formaldehyde and hydrocyanic acid or alkali metal cyanide to the corresponding dinitriles, (c) saponification of the dinitriles resulting from step (b).

公开(公告)号：US20180208550A1

公开(公告)日：2018-07-26

申请号：US15746151

申请日：2016-07-20

申请人： BASF SE

发明人： Klaus BREUER ,  Robert BAUMANN ,  Alexander PANCHENKO ,  Michael LORENZ ,  Frank HETTCHE ,  Norbert GUTFRUCHT ,  Thomas FENLON

IPC分类号： C07C263/10

CPC分类号： C07C263/10 ,  C07B2200/09 ,  C07C2601/14 ,  C07C265/14

摘要： The present invention relates to a process for preparing a cyclic isocyanate (B) from a composition (Z) which comprises at least one component (A) which has at least one cycloalkane ring having at least 4 ring carbons, where the cycloalkane ring has two NH2 groups in β or γ positions relative to one another as substituents and in more than 50 mol % of the total amount of component (A) the two NH2 groups in β or in γ positions relative to one another assume a trans configuration relative to one another. This composition (Z) is, in the process of the invention, reacted with phosgene to give a composition (ZP) which comprises at least one cyclic isocyanate (B) having isocyanate groups.In addition, the invention relates to the use of the isocyanate mixture (M) as monomer in processes for preparing polymers, in particular for preparing polyurethanes and polyureas.

公开(公告)号：US20180346413A1

公开(公告)日：2018-12-06

申请号：US15571274

申请日：2016-05-04

申请人： BASF SE

发明人： Thomas SCHAUB ,  Robert BAUMANN ,  Rocco PACIELLO ,  Nicolas GERMAIN

IPC分类号： C07C263/04 ,  C07C269/04

CPC分类号： C07C263/04 ,  C07C269/04 ,  C07C265/12 ,  C07C265/14 ,  C07C271/28

摘要： A process for preparing an isocyanate compound is provided. The process includes a step of reacting an amine compound A having at least one primary amino group with CO2 and an organotin compound S having at least one radical OR3 attached to the tin atom of the organotin compound to convert at least one of the primary amino groups in the amine compound A into a carbamate group to obtain a carbamate compound C; a step of cleaving the carbamate groups in the obtained carbamate compound C to form the isocyanate compound and an alcohol R3OH, without separation of the tin compounds; and a step of obtaining the isocyanate compound. The radical R3 is a C-bound organic radical of 1-30 carbon atoms with 1, 2, or 3 carbon atoms optionally replaced by oxygen or nitrogen.

公开(公告)号：US20180009742A1

公开(公告)日：2018-01-11

申请号：US15546871

申请日：2016-01-22

申请人： BASF SE

发明人： Michael LORENZ ,  Axel FRANZKE ,  Robert BAUMANN ,  Michael BOCK ,  Geert JANSSENS

IPC分类号： C07C263/04 ,  C07C265/14 ,  C07C269/04 ,  C07C271/28 ,  C08G18/76 ,  G01R33/46

CPC分类号： C07C263/04 ,  C07C265/14 ,  C07C269/04 ,  C07C271/28 ,  C08G18/7692 ,  G01R33/46

摘要： The invention relates to polyphenyl polymethylene polyisocyanates having an NCO number of at least 29% comprising less than 2% by weight ureas, less than 8% by weight carbodiimides or uretonimines and less than 1000 ppm organic chlorine compounds.The polyphenyl polymethylene polyisocyanates can be prepared according to the invention by reacting (i) polyphenyl polymethylene polyamines with organic carbonates to give the corresponding polyphenyl polymethylene polycarbamates, (ii) by thermally cleaving the polyphenyl polymethylene polycarbamates to give the polyphenyl polymethylene polyisocyanates, wherein, prior to the thermal cleavage, the free amino groups or urea groups present in the carhamate crude mixture comprising the polyphenyl polymethylene polycarbamates are reacted with a derivatizing reagent to give amide groups or urethane groups. The polyphenyl polymethylene polyisocyanates can further be prepared according to the invention, prior to the thermal cleavage, by removing compounds having free amino groups or urea groups present in the carbamate crude mixture from the carbamate crude mixture by filtration of the carbamate crude mixture comprising the polyphenyl polymethylene polycarbamates over a solid acidic adsorbent in the presence of an acid dissolved in the carbamate crude mixture.

公开(公告)号：US20170283369A1

公开(公告)日：2017-10-05

申请号：US15510949

申请日：2015-09-15

申请人： BASF SE

发明人： Rolf-Hartmuth FISCHER ,  Robert BAUMANN ,  Veronika WLOKA ,  Hermann LUYKEN

IPC分类号： C07C253/30

CPC分类号： C07C253/30 ,  C07C253/10 ,  Y02P20/127 ,  C07C255/04 ,  C07C255/07

摘要： A process for the continuous preparation of adiponitrile by hydrocyanation of 3-pentenenitrile is described, wherein a) 3-pentenenitrile is hydrocyanated to give a reaction output comprising adiponitrile, b) in a work-up 1, a mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile is separated off as overhead product from the reaction output from the reactor R1 in a first distillation apparatus, c) the mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile from step b) is continuously isomerized in the presence of aluminum oxide as catalyst in a reactor R2 to give a product mixture comprising 3-pentenenitrile, d) cis-2-methyl-2-butenenitrile is separated off as overhead product from the reaction output from the reactor R2 in a distillation apparatus in a work-up 2 and discharged.

公开(公告)号：US20160009633A1

公开(公告)日：2016-01-14

申请号：US14771409

申请日：2014-02-12

申请人： BASF SE

发明人： Hermann LUYKEN ,  Stephanie JAEGLI ,  Michael LORENZ ,  Gordon BRASCHE ,  Markus JEGELKA ,  Barbara BECKER ,  Robert BAUMANN ,  Johann-Peter MELDER ,  Boris BUSCHHAUS ,  Thomas KRUG

IPC分类号： C07C209/48 ,  C07C253/00 ,  C07C253/30

CPC分类号： C07C209/48 ,  C07C209/86 ,  C07C253/00 ,  C07C253/08 ,  C07C253/30 ,  C07C255/12 ,  C07C255/25 ,  C07C211/10

摘要： The present invention relates to a process for preparing ethylenediamine (EDA), where the process comprises the steps a) to c). In step a), formaldehyde is reacted with hydrocyanic acid (HCN) to form formaldehyde cyanohydrin (FACH), where the hydrocyanic acid is completely free or largely free of sulfur dioxide (SO2). The FACH prepared in this way is reacted with ammonia (NH3) to form aminoacetonitrile (AAN) in step b), whereupon a hydrogenation of AAN in the presence of a catalyst to form EDA is carried out in step c).

摘要翻译： 本发明涉及一种制备乙二胺（EDA）的方法，其中该方法包括步骤a）至c）。 在步骤a）中，甲醛与氢氰酸（HCN）反应形成甲醛氰醇（FACH），其中氢氰酸完全游离或大部分不含二氧化硫（SO2）。 在步骤b）中，以这种方式制备的FACH与氨（NH 3）反应形成氨基乙腈（AAN），于是在催化剂存在下形成EDA的AAN的氢化在步骤c）中进行。