公开(公告)号：BR9815036A

公开(公告)日：2000-10-03

申请号：BR9815036

申请日：1998-11-24

Applicant: BASF AG

Inventor： ERBES JORG ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: A process for continuous extraction of polyamide particles using a recirculating extractant in a vertical extraction column that is divided into two zones comprises treating the polyamide with an aqueous extractant comprising from 40 to 95% by weight of epsi-caprolactam in a first zone at from 100 to 140° C., and then effecting an aftertreatment with water in a second zone. The caprolactam can then be extracted in a conventional manner. The process provides for economical production of polyamide having a low dimer content.

公开(公告)号：ID24575A

公开(公告)日：2000-07-27

申请号：ID20000977

申请日：1998-11-24

Applicant: BASF AG

Inventor： ERBES JORG ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: A process for continuous extraction of polyamide particles using a recirculating extractant in a vertical extraction column that is divided into two zones comprises treating the polyamide with an aqueous extractant comprising from 40 to 95% by weight of epsi-caprolactam in a first zone at from 100 to 140° C., and then effecting an aftertreatment with water in a second zone. The caprolactam can then be extracted in a conventional manner. The process provides for economical production of polyamide having a low dimer content.

公开(公告)号：SA702B1

公开(公告)日：2006-04-18

申请号：SA98190809

申请日：1998-11-25

Applicant: BASF AG

Inventor： ERBES JORG ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: الملخص: يتعلقهذاالإختراعبطريقةللإستخلاصالمتواصللجزيئاتالبوليأميد polyamide بإستخداممستخلصمعادالدورانفيعمودإستخلاصرأسيوالذييقسمإلىمنطقتينويشملمعالجةالبوليأميد polyamide بمستخلصمائيمكونمن 40 إلى %95 بالوزنإيبسيلونكابرولاكتمفيمنطقةأولىعنددرجةحرارةمقدارهامن٠ ٠١ إلى 140 م, ثمالتأثيربمعالجةلاحقةمعالماءفيمنقطةثانية. وقديستخلصالكابرولاكتم caprolactam بعدذلكبصورةتقليدية. وتمدالطريقةبإنتاجإقتصاديمنالبوليأميد polyamide لهمحتوىدايمرمنخفض.

公开(公告)号：SK6982000A3

公开(公告)日：2000-11-07

申请号：SK6982000

申请日：1998-11-24

Applicant: BASF AG

Inventor： ERBES JORG ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: A process for continuous extraction of polyamide particles using a recirculating extractant in a vertical extraction column that is divided into two zones comprises treating the polyamide with an aqueous extractant comprising from 40 to 95% by weight of epsi-caprolactam in a first zone at from 100 to 140° C., and then effecting an aftertreatment with water in a second zone. The caprolactam can then be extracted in a conventional manner. The process provides for economical production of polyamide having a low dimer content.

公开(公告)号：AU1757199A

公开(公告)日：1999-06-15

申请号：AU1757199

申请日：1998-11-24

Applicant: BASF AG

Inventor： ERBES JORG ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: A process for continuous extraction of polyamide particles using a recirculating extractant in a vertical extraction column that is divided into two zones comprises treating the polyamide with an aqueous extractant comprising from 40 to 95% by weight of epsi-caprolactam in a first zone at from 100 to 140° C., and then effecting an aftertreatment with water in a second zone. The caprolactam can then be extracted in a conventional manner. The process provides for economical production of polyamide having a low dimer content.

公开(公告)号：CA2370360C

公开(公告)日：2008-12-16

申请号：CA2370360

申请日：2000-04-11

Applicant: BASF AG

Inventor： LORENZ REINHARD ,  BAUM EVA ,  JUNGE DIETER ,  GROSCH GEORG HEINRICH ,  BAUER STEPHAN ,  HARRE KATHRIN ,  ERBES JORG ,  OSTROWSKI THOMAS

IPC: C08G65/26 ,  C08G18/22 ,  C08G18/48

Abstract: The invention relates to a method for producing polyurethanes by reacting at least one polyisocyanate with at least one compound having at least two hydrogen atoms that are reactive with isocyanate groups. The method is characterised in that at least one polyether alcohol is used for the connection to at least two active hydrogen atoms. Sa id polyether alcohol is produced by adding alkylene oxides to H-functional initiator substances by means of multi-metal cyanide catalysis. The reaction is carried out in the presence of at least one metallic salt.

公开(公告)号：CO5040123A1

公开(公告)日：2001-05-29

申请号：CO98069228

申请日：1998-11-24

Applicant: BASF AG

Inventor： ERBES JORG ,  LUDWING ALFONS ,  GUNTER PIPPER

IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/00 ,  C08G69/02 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: Un proceso para la extracción continua de partículas de poliamidaen una columna de extracción esencialmente vertical usando un extractante acuoso, que comprende usar una columna de extracción en dos zonas, tratar la poliamida con un extractante acuoso recirculante que comprende entre 40 a 95% en peso de e-caprolactama en una primera zona, y luego efectuar un tratamiento posterior de contracorriente con agua en una segunda zona.

公开(公告)号：CA2382613A1

公开(公告)日：2001-03-08

申请号：CA2382613

申请日：2000-08-23

Applicant: BASF AG

Inventor： LORENZ REINHARD ,  HARRE KATHRIN ,  BAUER STEPHAN ,  ERBES JORG ,  JUNGE DIETER ,  OSTROWSKI THOMAS ,  GROSCH GEORG HEINRICH ,  BAUM EVA

IPC: C08G65/10 ,  C08G18/48 ,  C08G65/26 ,  C08G65/28 ,  C08G65/30

Abstract: The invention relates to a method for producing polyether alcohols by catalytically attaching ethylene oxide and propylene oxide to H-functional starting substances. Said method is characterized in that at least one multimetal cyanide compound is used as a catalyst, and a block comprised of an alkylene oxide having at least three carbon atoms in the molecule is attache d to the chain end.

公开(公告)号：AU5395800A

公开(公告)日：2000-12-28

申请号：AU5395800

申请日：2000-05-19

Applicant: BASF AG

Inventor： GROSCH GEORG HEINRICH ,  HARRE KATHRIN ,  ERBES JORG ,  LORENZ REINHARD ,  BAUER STEPHAN ,  OSTROWSKI THOMAS ,  BAUM EVA ,  JUNGE DIETER ,  DEXHEIMER EDWARD MICHAEL

IPC: B01J27/26 ,  C08G65/26 ,  C08G65/12

Abstract: Catalyst suspensions for the ring-opening polymerization of alkylene oxides comprise a) at least one multimetal cyanide compound having a crystalline structure and a content of platelet-shaped particles of at least 30% by weight, based on the multimetal cyanide compound, and b) at least one organic complexing agent c) water and/or d) at least one polyether and/or e) at least one surface-active substance, with the proviso that at least component a) and at least two of the components b) to e) have to be present.

公开(公告)号：ES2244446T3

公开(公告)日：2005-12-16

申请号：ES00935078

申请日：2000-05-19

Applicant: BASF AG

Inventor： GROSCH GEORG HEINRICH ,  HARRE KATHRIN ,  ERBES JORG ,  LORENZ REINHARD ,  BAUER STEPHAN ,  OSTROWSKI THOMAS

IPC: B01J27/26 ,  C08G65/26 ,  C08G65/10

Abstract: Procedimiento para la obtención de poliéteralcoholes con un peso molecular desde 500 hasta 50.000 Dalton y una funcionalidad desde 1 hasta 8 mediante polimerización con apertura del anillo de óxidos de alquileno, caracterizado porque se emplea, a modo de catalizador, al menos un compuesto de cianuro multimetálico con una constitución cristalina, de la fórmula general (I) M1a[M2(CN)bAc]d * e M1fXg * h H2 O (I) en la que M1 significa, al menos, un ión metálico elegido del grupo que contiene Zn2+, Fe2+, Co3+, Ni2+, Mn2+, Co2+, Sn2+, Pb2+, Fe3+, Mo4+, Mo6+, Al3+, V5+, Sr2+, W4+, W6+, Cu2+, Cr2+, Cr3+, Cd2+, Hg2+, Pd2+, Pt2+, V2+, Mg2+, Ca2+, Ba2+ y mezclas de los mismos, M2 significa, al menos, un ión metálico, elegido del grupo constituido por Fe2+, Fe3+, Co3+, Cr3+, Mn2+, Mn3+, Rh3+, Ru2+, Ru3+, V4+, V5+, Co2+, Ir3+ y Cr2+ y siendo M2 diferente de M1, X significa, al menos, un anión elegido del grupo constituido por halogenuro, hidróxido, sulfato, carbonato, cianuro, tiocianato, isocianato, carboxilato, especialmente formiato, acetato, propionato, oxalato, nitrato, A significa, al menos, un anión elegido del grupo formado por halogenuro, hidróxido, sulfato, carbonato, cianuro, tiocianato, isocianato, carboxilato o nitrato, especialmente cianuro, pudiendo ser A igual que o diferente de X, y a, b, c y d significan números enteros o fraccionarios, que se eligen de tal manera que se garantice la neutralidad electrónica del compuesto de cianuro, siendo a, b y d mayor que cero y siendo c mayor o igual que cero, e significa un número entero o fraccionario mayor que cero, así como f y g significan números enteros o fraccionarios, que se eligen de tal manera que se garantice la neutralidad electrónica de M1fXg, h significa un número entero o fraccionario mayor o igual que cero, que se ha fabricado mediante el empleo de un ácido hexacianocobáltico.