公开(公告)号：DE3160054D1

公开(公告)日：1983-03-17

申请号：DE3160054

申请日：1981-03-10

Applicant: BASF AG

Inventor： VODRAZKA WOLFGANG DR ,  KLAHR ERHARD DR ,  OPPENLAENDER KNUT DR ,  TRIESELT WOLFGANG DR ,  STOECKIGT DIETER ,  NEUMANN WERNER

IPC: C11D1/722 ,  B01J31/08 ,  C07B61/00 ,  C07C41/00 ,  C07C41/06 ,  C07C43/10 ,  C07C43/11 ,  C07C67/00 ,  C08G65/00 ,  C08G65/32 ,  C08G65/337 ,  C11D1/72

Abstract: 1. A compound of the formula I see diagramm : EP0036550,P4,F1 where R is C8 -C20 -alkyl and A is a polyalkylene oxide radical composed of from 4 to 30 alkylene oxide units, of which from 100 to 60 mole % are ethylene oxide units and from 0 to 40 mole % are 1,2-propylene oxide units or 1,2-butylene oxide units or a mixture of these.

公开(公告)号：DE3264508D1

公开(公告)日：1985-08-08

申请号：DE3264508

申请日：1982-03-23

Applicant: BASF AG

Inventor： WAGNER ECKHART DR ,  WAGNER ULRICH DR ,  VOLKAMER KLAUS DR ,  VODRAZKA WOLFGANG DR

IPC: B01D53/14 ,  C07C7/11 ,  C07C9/04 ,  C10G5/04

Abstract: A process for removing condensable aliphatic hydrocarbons and acidic gases such as H2S, CO2 and COS from natural gas containing these, wherein the natural gas is initially treated with polyethylene glycol dialkyl ethers, as the solvent, in a first absorption stage to effect absorption of the condensable aliphatic hydrocarbons; the natural gas drawn off from the first absorption stage is then treated with polyethylene glycol dialkyl ethers, as the solvent, under superatmospheric pressure in a second absorption stage, the acidic gases being completely or partly absorbed; the solvent charged with the condensable aliphatic hydrocarbons which is obtained from the first absorption stage is treated with water in an extraction stage, to form a hydrocarbon phase containing the condensable aliphatic hydrocarbons and an aqueous dialkyl ether phase, and the hydrocarbon phase is separated from the aqueous dialkyl ether phase. The solvent charged with acid gases which is obtained from the second absorption stage is regenerated by expansion and/or stripping in a regeneration stage and the regenerated solvent is recycled to the absorption.

公开(公告)号：DE3274858D1

公开(公告)日：1987-02-05

申请号：DE3274858

申请日：1982-09-18

Applicant: BASF AG

Inventor： FROMM DIETER DR ,  SCHIER ERNST-JUERGEN DR ,  SCHNEEHAGE HANS HENNING DR ,  VODRAZKA WOLFGANG DR

IPC: B01J21/20 ,  B01J38/06 ,  C07B61/00 ,  C07D251/60

Abstract: In the synthesis of melamine by conversion of urea in a fluidized catalyst bed, the melamine quality is improved by reactivating the catalyst by treating it, in the fluidized bed, with gases containing steam, in the absence of oxygen, at from 250 DEG to 450 DEG C.

公开(公告)号：DE19517716A1

公开(公告)日：1995-12-07

申请号：DE19517716

申请日：1995-05-13

Applicant: BASF AG

Inventor： KOELLE PETER DR ,  KERSTING MEINOLF DR ,  VODRAZKA WOLFGANG DR ,  BERHALTER KLAUS DR ,  SCHWIND JUERGEN

IPC: B01J31/02 ,  B01J31/14 ,  B01J31/38 ,  C08F2/34 ,  C08F4/58 ,  C08F4/646 ,  C08F10/00 ,  B01J31/16

Abstract: The catalyst system contains (a) a complex cpd. obtd. by grinding 100 mol. pts. of a substance of formula TiCl3.0.33AlCl3 (I) with 5-50 mol. pts. of a cpd. of formula (R )3POn (II) (b) an Al cpd. of formula (R )3Al (III) and (c) an organo-Si cpd. of formula (R )mSi(OR )4-m (IV); R = 1-8C alkyl or 6-10C aryl; n = 0 or 1; R = 1-8C alkyl; R = 1-10C alkyl or 4-8C cycloalkyl; R = 1-8C alkyl; m = 1, 2 or 3. Also claimed is the prodn. of polymers of 2-8C alk-l-enes by polymerisation of the alkenes in the gas phase at 40-150 deg C and 10-100 bar in the presence of the above Ziegler-Natta catalyst system. Also claimed are polymers obtd. by this process.

公开(公告)号：DE59100367D1

公开(公告)日：1993-10-21

申请号：DE59100367

申请日：1991-01-26

Applicant: BASF AG

Inventor： SANDER BRUNO DR ,  MARQUARDT SIEGFRIED ,  KEMPE UWE DR ,  VODRAZKA WOLFGANG DR ,  LUETH GERO DR

IPC: B01D37/03 ,  C02F1/54 ,  C02F9/00 ,  C02F11/10 ,  C02F11/12 ,  C02F11/14 ,  C10L5/40

Abstract: Process for the utilisation of soot, arising in the production of synthesis gas in the form of soot-containing waste water, characterised in that, in a sewage sludge treatment plant, the soot-containing waste water a) is mixed with a clarified sludge, to which are added organic flocculating agents as dewatering aids and to which, if required, are added still further amounts of finely particulate coals and/or ashes, b) this pretreated sludge mixture is subjected to filtration c) the filter cake obtained is incinerated and d) the ash is deposited in a supervised landfill.

公开(公告)号：DE4003242A1

公开(公告)日：1991-08-08

申请号：DE4003242

申请日：1990-02-03

Applicant: BASF AG

Inventor： SANDER BRUNO DR ,  MARQUARDT SIEGFRIED ,  KEMPE UWE DR ,  VODRAZKA WOLFGANG DR ,  LUETH GERO DR

IPC: B01D37/03 ,  C02F1/54 ,  C02F9/00 ,  C02F11/10 ,  C02F11/12 ,  C02F11/14 ,  C10L5/40

Abstract: Process for the utilisation of soot, arising in the production of synthesis gas in the form of soot-containing waste water, characterised in that, in a sewage sludge treatment plant, the soot-containing waste water a) is mixed with a clarified sludge, to which are added organic flocculating agents as dewatering aids and to which, if required, are added still further amounts of finely particulate coals and/or ashes, b) this pretreated sludge mixture is subjected to filtration c) the filter cake obtained is incinerated and d) the ash is deposited in a supervised landfill.

公开(公告)号：AT14112T

公开(公告)日：1985-07-15

申请号：AT82102378

申请日：1982-03-23

Applicant: BASF AG

Inventor： WAGNER ECKHART DR ,  WAGNER ULRICH DR ,  VOLKAMER KLAUS DR ,  VODRAZKA WOLFGANG DR

IPC: B01D53/14 ,  C07C7/11 ,  C07C9/04 ,  C10G5/04

公开(公告)号：DE3063407D1

公开(公告)日：1983-07-07

申请号：DE3063407

申请日：1980-02-20

Applicant: BASF AG

Inventor： OPPENLAENDER KNUT DR ,  MERGER FRANZ DR ,  STRICKLER RAINER DR ,  HOVEMANN FRIEDRICH DR ,  SCHMIDT HELMUT ,  STARKE KLAUS ,  STORK KARL DR ,  VODRAZKA WOLFGANG DR

IPC: C10L1/02 ,  F02B3/06

公开(公告)号：DE2960102D1

公开(公告)日：1981-02-26

申请号：DE2960102

申请日：1979-01-10

Applicant: BASF AG

Inventor： PLATZ ROLF DR ,  FUCHS WERNER DR ,  VODRAZKA WOLFGANG DR

IPC: B01J31/00 ,  C07B61/00 ,  C07C41/00 ,  C07C41/06 ,  C07C43/11 ,  C07C67/00 ,  C08G65/00 ,  C08G65/32 ,  C08G65/337

Abstract: Mono- and poly-ethylene glycol dialkyl ethers I R1-O-(-CH2-CH2-O-)n-R2 where R1 is C1-C4-alkyl, R2 is C3-C5-alkyl and n is from 1 to 100, are prepared by reacting monoalkyl ethers II R1-O-(-CH2-CH2-O-)n-H with a C3-C5-olefin III in the presence of an acid ion exchanger at from 1 to 200 bar and from 40 DEG to 150 DEG C., the reaction being started at from 100 DEG to 150 DEG C. and the temperature then being lowered, in at least two approximately equal steps, to from 40 DEG to 80 DEG C., the temperature being dropped in each case to the next-lower level when the conversion per unit time no longer changes significantly.

公开(公告)号：DE2544569A1

公开(公告)日：1977-04-07

申请号：DE2544569

申请日：1975-10-04

Applicant: BASF AG

Inventor： PLATZ ROLF DR ,  FUCHS WERNER DR ,  VODRAZKA WOLFGANG DR ,  SCHNEIDER KURT DR

IPC: C07C41/06 ,  C07C43/11