公开(公告)号：WO2004037718A3

公开(公告)日：2004-06-03

申请号：PCT/EP0311910

申请日：2003-10-27

Applicant: BASF AG ,  WALSDORFF CHRISTIAN ,  FIENE MARTIN ,  KUHRS CHRISTIAN ,  STROEFER ECKHARD ,  HARTH KLAUS

Inventor： WALSDORFF CHRISTIAN ,  FIENE MARTIN ,  KUHRS CHRISTIAN ,  STROEFER ECKHARD ,  HARTH KLAUS

IPC: C01B7/04 ,  C01B7/07 ,  C07C263/10

CPC classification number: C01B7/0718 ,  C01B7/04 ,  C01B7/0743 ,  C07C263/10 ,  C07C265/14 ,  C07C265/06

Abstract: The invention relates to a method for producing chlorine by oxidising hydrogen chloride in the presence of a catalyst, whereby hydrogen chloride is not used in a gaseous form, but at least partially in the form of hydrochloric acid. In an especially preferred form of embodiment, the feed gas flow containing hydrogen chloride is obtained from phosgene and primary amines during the isocyanate synthesis, and the product gas flow containing chlorine is used to produce the phosgene which is subsequently reacted with the primary amines to form isocyanates. The invention thus also relates to an integrated method for producing organic isocyanates.

Abstract translation: 一种用于通过在催化剂，在氯化氢气体不存在氧化氯化氢制造氯的方法，但是至少部分地在盐酸的形式使用。 在含有氯化氢的进料气流的一个特别bevorgzugten实施例中回收光气和伯胺的异氰酸酯合成，用于生产光气的含氯产物气流被使用，其随后与伯胺的异氰酸酯反应。 因此，本发明还提供了用于制备有机异氰酸酯的一体化方法。

公开(公告)号：WO2004080587A8

公开(公告)日：2004-11-11

申请号：PCT/EP2004001673

申请日：2004-02-20

Applicant: BASF AG ,  BRODHAGEN ANDREAS ,  SOHN MARTIN ,  NEVEJANS FILIP ,  STROEFER ECKHARD ,  WOELFERT ANDREAS ,  OEHLENSCHLAEGER STEFFEN

Inventor： BRODHAGEN ANDREAS ,  SOHN MARTIN ,  NEVEJANS FILIP ,  STROEFER ECKHARD ,  WOELFERT ANDREAS ,  OEHLENSCHLAEGER STEFFEN

IPC: B01J19/24 ,  C07C263/10 ,  C07C265/14

CPC classification number: B01J19/242 ,  B01J19/243 ,  B01J2219/00166 ,  B01J2219/182 ,  B01J2219/185 ,  B01J2219/187 ,  C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for producing polyisocyanates by reacting primary amines with phosgene, comprising the following steps: a) mixing the amine with the phosgene; b) reacting the amine with the phosgene in a reactor, inside of which the mixture stays for a period of time and, optionally; c) transferring the discharge from the reactor from step b) into a distillation column. The invention is characterized in that the reactor cited in step b) is provided in the form of a tubular reactor.

Abstract translation: 本发明涉及一种通过伯胺与光气，其包括以下步骤：a反应来制备多异氰酸酯）混合在住宅中反应器中的光气的胺的胺我光气b）中反应，如果在反应器的流出物的适当的，c）中的转换 步骤b）在蒸馏塔中，其特征在于，步骤b）中的停留时间反应器设计为管式反应器。

公开(公告)号：WO2004078678A3

公开(公告)日：2004-11-04

申请号：PCT/EP2004002180

申请日：2004-03-04

Applicant: BASF AG ,  STROEFER ECKHARD ,  LANG NEVEN ,  HASSE HANS ,  GRUETZNER THOMAS ,  OTT MICHAEL

Inventor： STROEFER ECKHARD ,  LANG NEVEN ,  HASSE HANS ,  GRUETZNER THOMAS ,  OTT MICHAEL

IPC: C07C45/00 ,  C07C45/82 ,  C07C47/058

CPC classification number: C07C45/002 ,  C07C45/82 ,  C07C47/04

Abstract: A method for the production of highly concentrated formaldehyde solutions containing ≥ 50 wt. % CH2O from an aqueous formaldehyde solution having a lower CH2O content by evaporating part of said solution (partial evaporation), wherein the aqueous formaldehyde solution is heated to an evaporation temperature T wherein water becomes enriched in a gaseous phase in relation to the liquid phase and the formed gas phase is continuously or discontinuously removed. For the evaporation temperature T: T [ °C]

公开(公告)号：EP1546032A1

公开(公告)日：2005-06-29

申请号：EP03748085

申请日：2003-09-25

Applicant: BASF AG

Inventor： KUHRS CHRISTIAN ,  WALSDORFF CHRISTIAN ,  FIENE MARTIN ,  STROEFER ECKHARD ,  HARTH KLAUS

IPC: B01J23/52 ,  B01J23/66 ,  C01B7/04

CPC classification number: C01B7/04 ,  B01J23/52 ,  B01J23/66

Abstract: The invention relates to a catalyst for the catalytic oxidation of hydrogen chloride, containing on a support: a) between 0.001 and 30 wt. % gold; b) between 0 and 3 wt. % one or more alkaline-earth metals; c) between 0 and 3 wt % one or more alkaline metals; d) between 0 and 10 wt. % one or more rare-earth metals; e) between 0 and 10 wt % one or more additional metals, selected from the group consisting of ruthenium, palladium, platinum, osmium, iridium, silver, copper and rhenium, whereby each quantity relates to the total weight of the catalyst.

公开(公告)号：HU228580B1

公开(公告)日：2013-04-29

申请号：HU0402363

申请日：2002-11-05

Applicant: BASF AG

Inventor： STROEFER ECKHARD ,  SOHN MARTIN ,  HASSE HANS ,  SCHILLING KLEMENS

IPC: C07C45/86 ,  C07C47/04 ,  C07C31/02 ,  C07C31/20 ,  C07C45/79 ,  C07C45/82 ,  C07C47/058

Abstract: In an aqueous formaldehyde solution comprising formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x of >=65% by weight, the mean molar mass {overscore (M of the polyoxymethylene glycols is, as a function of the formaldehyde concentration, equal to or less than the values given by equation I: ( M _ g ⁢ / ⁢ mol ) = 48 + 6.589 . 10 - 1 . ( x % ⁢ ⁢ by ⁢ ⁢ weight ) + 4.725 . 10 2 . ⁢ ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 2 - 3.434 . 10 - 3 . ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 3 + ⁢ 9.625 . 10 - 5 . ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 4 - 1.172 . 10 6 . ⁢ ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 5 + 5.357 . 10 - 9 . ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 6 ( I ) where: {overscore (M is the mean molar mass, and x is the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in % by weight (total formaldehyde concentration).

公开(公告)号：SG175661A1

公开(公告)日：2011-11-28

申请号：SG2011076726

申请日：2005-03-21

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  SCHUBERT OLGA ,  GRASSLER THOMAS ,  FIENE MARTIN ,  SESING MARTIN ,  SEIDEMANN LOTHAR ,  WALSDORFF CHRISTIAN

IPC: B01J8/18 ,  B01J8/24 ,  C01B7/04

Abstract: FLUIDIZED BED METHOD AND REACTOR FOR CARRYING OUT EXOTHERMIC CHEMICAL EQUILIBRIUM REACTIONSAbstractThe invention relates to a process for carrying out exothermic chemical equilib rium reactions in a fluidized-bed reactor, wherein there is a temperature distribu tion in the fluidized bed of the fluidized-bed reactor and the temperature differencebetween the lowest temperature and the highest temperature is at least 10 K. The invention further relates to a fluidized-bed reactor for carrying out chemical reac tions In a fluidized bed (5), wherein at least one heat exchanger (12, 28) is located in the fluidized bed (5) to control the temperature distribution.(Figure 1)

公开(公告)号：BRPI0611612A2

公开(公告)日：2011-02-22

申请号：BRPI0611612

申请日：2006-06-12

Applicant: BASF AG

Inventor： STROEFER ECKHARD ,  HASSE HANS ,  BLAGOV SERGEJ

IPC: C08G65/00

Abstract: Preparing tri-/tetra oxymethylene glycol dimethylether (I) comprises e.g. distilling an aqueous formaldehyde solution and methanol in a reactor to form a reaction mixture containing polyoxy methylene glycol dimethylether (III); distilling the reaction mixture to form a high-boiling fraction (A2) containing e.g. (III); distilling (A2) to form e.g. a low-boiling fraction (A3) having e.g. (I); distilling (A3) to form a high-boiling fraction (A5) having e.g. (I); and distilling (A5) to form an organic phase containing (I). Preparing tri-/tetra oxymethylene glycol dimethylether through the conversion of formaldehyde with methanol and successive distillation of a reaction mixture, comprises: feeding an aqueous formaldehyde solution and methanol in a reactor to form the reaction mixture containing formaldehyde, water, methylene glycol, polyoxymethylene glycol, methanol, hemiformal, methylal and polyoxymethylene glycol dimethylether (III); feeding the reaction mixture into a first distillation column (5) and separating a low-boiling fraction (A1) containing formaldehyde, water, methylene glycol, methanol, methylal and polyoxy methylene glycoldimethylether and a high-boiling fraction (A2) containing formaldehyde, water, methanol, polyoxymethylene glycol, hemiformal and (III); feeding (A2) into a second distillation column (8) and separating a low-boiling fraction (A3) containing formaldehyde, water, methylene glycol, polyoxymethylene glycol, methanol, hemiformal, di-chloroethylene and (I) and a high-boiling containing polyoxymethylene glycol, high-boiling hemiformal and high-boiling polyoxymethylene glycol dimethylether; feeding (A3) and optionally feed-back stream containing formaldehyde, water, methylene glycol and polyoxymethylene glycol into a third distillation column (13) and separating a high volatile fraction (A4) containing formaldehyde, water, methanol, polyoxymethylene glycol, hemiformal and dioxymethylene glycol dimethylether and a high-boiling fraction (A5) containing formaldehyde, water, methylene glycol, polyoxymethylene glycol and (I); feeding (A5) in to a phase separator and separating an aqueous phase containing formaldehyde, water, methylene glycol and polyoxymethyleneglycol and an organic phase containing (I); feeding the organic phase into a fourth distillation column (18) and separating a low-boiling fraction (A6) containing formaldehyde, water, methylene glycol and polyoxymethylene glycol and a high-boiling fraction containing (I); and optionally feeding the aqueous phase in a fifth distillation column (24) and separating a low-boiling fraction (A7) containing formaldehyde, water, methylene glycol and polyoxymethylene glycol and a high-boiling fraction containing water.

公开(公告)号：CA2654892A1

公开(公告)日：2007-12-21

申请号：CA2654892

申请日：2007-06-11

Applicant: BASF AG

Inventor： LANG NEVEN ,  STROEFER ECKHARD ,  SIGWART CHRISTOPH ,  SIEGERT MARKUS

IPC: C07D323/06

Abstract: Integrated method for the preparation of trioxane from formaldehyde, comp rising the steps: a) introduction of a feeding flow A1 containing formaldehy de and water and a return flow B3 consisting essentially of formaldehyde and trioxane into a formaldehyde concentration unit, wherein said flows are sep arated into a formaldehyde-rich flow A2 and a flow A3 consisting essentially of water; b) introduction of a product flow C1, containing trioxane, water, and formaldehyde, a return flow E1 containing trioxane, water, and formalde hyde, and possibly flow A2 into a first low-pressure distillation column, wh erein said flows are distilled at a pressure of from 0.1 to 1.5 atmospheres, with a trioxane-enriched flow B1 containing predominantly trioxane, and als o water and formaldehyde, a slough removal flow B2 consisting essentially of formaldehyde and water, and the return flow B3 containing predominantly wat er, and also formaldehyde and trioxane removed as a side removal flow; c) in troduction of a slough removal flow B2 and possibly the flow A2 into a triox ane synthesis reactor, wherein said flows are allowed to react, and wherein the flow C1 containing trioxane, water, and formaldehyde is obtained; d) int roduction of a flow B1 into a mid-pressure distillation column, wherein said flow is distilled at a pressure of from 1.0 to3.0 atmospheres, wherein a lo w boiler stream D1 containing methanol, methylal, and methylformate,and a st ream D2 containing predominantly trioxane and also formaldehyde and water ar e obtained; e) introduction of a stream D2 into a high-pressure distillation column, wherein said stream is distilled at a pressure of from 2.5 to 10.0 atmospheres, wherein the return flow E1 contains trioxane, water, and formal dehyde, and a product flow E2 consisting essentially of trioxane is obtained ; wherein flow A2 can be introduced into either the low-pressure distillatio n column or into the trioxane-35 synthesis reactor, or into both.

公开(公告)号：CA2610895A1

公开(公告)日：2007-05-10

申请号：CA2610895

申请日：2006-06-12

Applicant: BASF AG

Inventor： HASSE HANS ,  STROEFER ECKHARD ,  BLAGOV SERGEJ

IPC: C08G65/00

Abstract: A process for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4) by reacting formaldehyde with methanol and subsequently workin g up the reaction mixture by distillation, comprising the steps of: a) feeding aqueous formaldehyde solution and methanol into a reactor and reacting to gi ve a mixture a comprising formaldehyde, water, methylene glycol (MG), polyoxymethylene glycols (MGn>1), methanol, hemiformals (HF), methylal (POMDMEn=1) and polyoxymethylene glycol dimethyl ethers (POMDMEn>1); b) feeding the reaction mixture a into a first distillation column and separati ng into a low boiler fraction b1 and a high boiler fraction b2 comprising formaldehyde, water, methanol, polyoxymethylene glycols, hemiformals and polyoxymethylene glycol dimethyl ethers (POMDMEn>1); c) feeding the high boiler fraction b2 into a second distillation column and separating into a l ow boiler fraction c1 comprising formaldehyde, water, methylene glycol, polyoxymethylene glycols, methanol, hemiformals, di-, tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=2,3,4) and a high boiler fraction c2; d) feeding the low boiler fraction c1 into a third distillation column and separating into a low boiler fraction d1 and a high boiler fracti on d2 substantially consisting of formaldehyde, water, methylene glycol, polyoxymethylene glycols, tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4); e) feeding the high boiler fraction d2 into a phase separatio n apparatus and separating into an aqueous phase e1 substantially consisting o f formaldehyde, water, methylene glycol and polyoxymethylene glycols, and an organic phase e2 comprising tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4); f) feeding the organic phase e2 into a fourth distillation column and separating into a low boiler fraction f1 substantially consisting of formaldehyde, water, methylene glycol and polyoxymethylene glycols, and a high boiler fraction f2 substantially consisting of tri- and tetraoxymethyle ne glycol dimethyl ether (POMDMEn=3,4).

公开(公告)号：DE50305797D1

公开(公告)日：2007-01-04

申请号：DE50305797

申请日：2003-12-16

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  PALLASCH HANS-JUERGEN ,  STROEFER ECKHARD ,  BLANKERTZ HEINRICH-JOSEF

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

Abstract: Method for purifying isocyanates (I) by distillation. Method for purifying isocyanates by distillation comprises: (a) first separating a stream (1) containing (I), high and low boilers and non-evaporatable residue (X) by distillation (at least one theoretical plate) into a sidestream (2), containing (I) and (X), and a vapor stream (3), containing (I) and low boilers; (b) (X) in (2) is kept separate from (3) and/or material streams that consist at least partly of (3); (c) another (I)-containing vapor stream (4) is separated from (2), leaving stream (8) consisting essentially of (X); (d) streams (4) and (3) are separated by distillation into 3 streams (5,6,7) of different boiling ranges, where the lowest boiler (5) contains a significant proportion of the low boilers in (1), the highest boiler (7) contains a significant proportion of the high boilers in (1) and the middle stream (6) is essentially (I).