公开(公告)号：DE102004045879B4

公开(公告)日：2007-06-14

申请号：DE102004045879

申请日：2004-09-20

Applicant: BASF AG

Inventor： HENN ROLF ,  MUELLER ULRICH ,  STRAUB FERDINAND ,  DOSCH JUERGEN

IPC: C07C7/13 ,  B01D53/02 ,  C07B63/04 ,  C07C2/66 ,  C07C15/00 ,  C07C15/04

Abstract: Processes suitable for purifying aromatic-containing feed streams, and processes using such purified streams are described, wherein the purification processes comprise: (a) providing a process feedstream comprising an aromatic component; and (b) bringing the process feedstream into contact with a first zeolite and a second zeolite; wherein the first zeolite has a mean pore size of 0.3 to 0.5 nm, and wherein the second zeolite has a mean pore size of 0.6 to 0.8 nm.

公开(公告)号：DE59907200D1

公开(公告)日：2003-11-06

申请号：DE59907200

申请日：1999-04-12

Applicant: BASF AG

Inventor： PENZEL ULRICH ,  SCHARR VOLKER ,  STAROSTA DIETER ,  BOESEL HILMAR ,  STROEFER ECKHARD ,  PFEFFINGER JOACHIM ,  POPLOW FRANK ,  DOSCH JUERGEN ,  SCHWARZ VOLKMAR ,  NAEUMANN FRITZ ,  VAN DEN ABEEL PETER ,  JACOBS JAN ,  NEVEJANS FILIP ,  VAN PEE WILLY

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14

Abstract: In a process for preparing mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced content of chlorinated by-products and a reduced iodine color number by two-stage reaction of the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phosgene in the presence of at least one inert organic solvent at elevated temperature, separation of the excess phosgene and solvent after the phosgenation is complete and thermal treatment of the reaction product, the mass ratios of phosgene to hydrogen chloride in the residence time apparatus of the second stage of the phosgenation are at the same time 10-30:1 in the liquid phase and 1-10:1 in the gas phase.

公开(公告)号：DE19934144A1

公开(公告)日：2001-02-01

申请号：DE19934144

申请日：1999-07-26

Applicant: BASF AG

Inventor： UHR HERMANN ,  VODRAZKA WOLFGANG ,  MITULLA KONRAD ,  DOSCH JUERGEN

IPC: C07C7/12 ,  C07C7/13 ,  C07C15/02 ,  B01J29/00 ,  C07C2/02

Abstract: The present invention relates to a method for purifying olefin-containing supply flows in polymerisation or alkylation processes, wherein said method involves feeding the supply flow through an adsorption layer. The invention also relates to methods for producing alkylbenzenes by the catalytic reaction of benzene and olefins fed through an adsorption layer.

公开(公告)号：DE102004045879A1

公开(公告)日：2006-04-06

申请号：DE102004045879

申请日：2004-09-20

Applicant: BASF AG

Inventor： HENN ROLF ,  MUELLER ULRICH ,  STRAUB FERDINAND ,  DOSCH JUERGEN

IPC: C07C7/13 ,  B01D53/02 ,  C07B63/04 ,  C07C2/66 ,  C07C15/00 ,  C07C15/04

Abstract: Processes suitable for purifying aromatic-containing feed streams, and processes using such purified streams are described, wherein the purification processes comprise: (a) providing a process feedstream comprising an aromatic component; and (b) bringing the process feedstream into contact with a first zeolite and a second zeolite; wherein the first zeolite has a mean pore size of 0.3 to 0.5 nm, and wherein the second zeolite has a mean pore size of 0.6 to 0.8 nm.

公开(公告)号：BRPI0515430A

公开(公告)日：2008-07-22

申请号：BRPI0515430

申请日：2005-09-15

Applicant: BASF AG

Inventor： HENN ROLF ,  MUELLER ULRICH ,  STRAUB FERDINAND ,  DOSCH JUERGEN

IPC: C07C2/66 ,  C07C15/073

Abstract: Processes suitable for purifying aromatic-containing feed streams, and processes using such purified streams are described, wherein the purification processes comprise: (a) providing a process feedstream comprising an aromatic component; and (b) bringing the process feedstream into contact with a first zeolite and a second zeolite; wherein the first zeolite has a mean pore size of 0.3 to 0.5 nm, and wherein the second zeolite has a mean pore size of 0.6 to 0.8 nm.

公开(公告)号：CA2580346A1

公开(公告)日：2006-03-30

申请号：CA2580346

申请日：2005-09-15

Applicant: BASF AG

Inventor： DOSCH JUERGEN ,  HENN ROLF ,  MUELLER ULRICH ,  STRAUB FERDINAND

IPC: C07C2/66 ,  C07C15/073

Abstract: Processes suitable for purifying aromatic-containing feed streams, and processes using such purified streams are described, wherein the purification processes comprise: (a) providing a process feedstream comprising an aromatic component; and (b) bringing the process feedstream into contact with a first zeolite and a second zeolite; wherein the first zeolite has a mean pore size of 0.3 to 0.5 nm, and wherein the second zeolite has a mean pore size of 0.6 to 0.8 nm.

公开(公告)号：DE19817691A1

公开(公告)日：1999-10-28

申请号：DE19817691

申请日：1998-04-21

Applicant: BASF AG

Inventor： PENZEL ULRICH ,  SCHARR VOLKER ,  STAROSTA DIETER ,  BOESEL HILMAR ,  STROEFER ECKHARD ,  PFEFFINGER JOACHIM ,  ABEEL PETER VAN DEN ,  JACOBS JAN ,  NEVEJANS FILIP ,  POPLOW FRANK ,  DOSCH JUERGEN ,  SCHWARZ HANS VOLKMAR ,  NAEUMANN FRITZ ,  PEE WILLY VAN

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14

Abstract: Surprisingly, the drawbacks of previous processes for the preparation of mixtures containing diphenylmethanediisocyanate and polyphenylene-polymethylene-polyisocyanate, e.g. high cost, excessive HCl stripping time, can be avoided by a two-stage reaction of corresponding mixtures containing diphenylmethane-diamine and polyphenylene-polymethylene-polyamine with phosgene in the presence of inert organic solvent. Mixtures containing diphenylmethanediisocyanate and polyphenylene-polymethylene-polyisocyanate (PMDI) having a decreased content of chlorinated side product and decreased iodine colour index are obtained by two-stage reaction of corresponding mixtures containing diphenylmethanediamine and polyphenylene-polymethylene-polyamine (PMDA) with phosgene in the presence of at least one inert organic solvent. The weight ratio of phosgene to HCl in the dwell time apparatus of the second phosgenation stage is (10-30):1 in the liquid phase and (1-10):1 in the gas phase. An Independent claim is included for mixtures containing diphenylmethanediisocyanate and PMDI obtainable by the above process.