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公开(公告)号：NO932555L
公开(公告)日：1994-01-17
申请号：NO932555
申请日：1993-07-14
Inventor： BOELT HEINZ DIPL ING , WALSER FRANZ DIPL ING , WUNSCH GERD DR , STABEL UWE DR , SCHOENEBORN AXEL
Abstract: The invention relates to a process and a separation system for removing particles, in particular soot particles, from particle-containing process gas streams occurring in chemical or petrochemical plants. According to the invention, the particle removal is carried out in a partly thermally regenerable separation system. The particles are advantageously removed from the gas stream in a two-stage separation system, the first stage being composed of centrifugal separators, preferably multicyclones, and the second stage being composed of fine filters made of sintered metals, preferably of ferritic sintered metals. For the regeneration, the temperature is increased to a value above the ignition temperature of soot and, if required, an oxygen-containing auxiliary gas is added. The regeneration is preferably carried out periodically.
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公开(公告)号：DE4005295A1
公开(公告)日：1991-08-22
申请号：DE4005295
申请日：1990-02-20
Applicant: BASF AG
Inventor： STABEL UWE DR , GOSCH HANS-JUERGEN DR , FISCHER ROLF DR , HARDER WOLFGANG DR , HECHLER CLAUS DR
IPC: B01J21/16 , C07B61/00 , C07B63/04 , C07D307/08
Abstract: A process is claimed for the prodn of THF from mixts (I) contg THF, butane-1,4-diol (II), gamma-butyrolactone (III), succinate esters and alcohols, which are obtd by the catalytic hydrogenation of maleic, succinic or fumaric acid, or esters thereof, or maleic or succinic anhydride, in the presence of alcohols; the process comprises distn of the THF, alcohols and water, heating the residue at 100-250 deg C in the presence of a layer silicate (IV), distn of the THF and water formed in the reaction, and sepn of THF from the distillate. More specifically, (I) are produced by hydrogenation of maleic anhydride (MA) in the presence of butanols, and contain THF, butanol, propanol, (II), (III), dibutyl succinate (V) and water; distn of (I) before treatment with (IV) gives THF, propanol, butanol and water; traces of catalyst components are removed from the mixt before treatment with (IV).
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公开(公告)号：ES2212945T3
公开(公告)日：2004-08-16
申请号：ES00115727
申请日：2000-07-21
Applicant: BASF AG
Inventor： HEINEKE DANIEL DR , HARTH KLAUS DR , STABEL UWE DR
Abstract: Catalysts (I) with a bimodal pore radius distribution and a BET surface of more than 70 m /g, containing or consisting mainly of (a) 10-99.9 wt% zirconium dioxide, (b) 0-60 wt% aluminum oxide, silicon dioxide and/or titanium dioxide and (c) 0.1-10 wt% Main Group 1 or 2 element(s), Sub-Group 3 element(s), Sub-Group 8 element(s), lanthanum and/or tin. Independent claims are also included for (i) a process for the production of (I) by mixing the catalyst components with 2-30 wt% polyamine, polyacrylate, poly-alcohol, polysiloxane and/or carbohydrate, or especially polyvinylpyrrolidone, and then calcining at above 550 degrees C; (ii) a process for the dehydrogenation of 2-16C hydrocarbons in presence of (I) and optionally in presence of water vapor.
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公开(公告)号：DK0726306T3
公开(公告)日：1999-10-25
申请号：DK96101496
申请日：1996-02-02
Applicant: BASF AG
Inventor： STABEL UWE DR , VICARI MAXIMILIAN DR , WOERZ HELMUT DR
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公开(公告)号：NO302647B1
公开(公告)日：1998-04-06
申请号：NO932555
申请日：1993-07-14
Inventor： BOELT HEINZ DIPL ING , WALSER FRANZ DIPL ING , WUNSCH GERD DR , STABEL UWE DR , SCHOENEBORN AXEL
Abstract: The invention relates to a process and a separation system for removing particles, in particular soot particles, from particle-containing process gas streams occurring in chemical or petrochemical plants. According to the invention, the particle removal is carried out in a partly thermally regenerable separation system. The particles are advantageously removed from the gas stream in a two-stage separation system, the first stage being composed of centrifugal separators, preferably multicyclones, and the second stage being composed of fine filters made of sintered metals, preferably of ferritic sintered metals. For the regeneration, the temperature is increased to a value above the ignition temperature of soot and, if required, an oxygen-containing auxiliary gas is added. The regeneration is preferably carried out periodically.
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Patent Agency Ranking
公开(公告)号：ES2100400T3
公开(公告)日：1997-06-16
申请号：ES93110741
申请日：1993-07-05
Applicant: LINDE AG , BASF AG , GST SYST ABSCHEIDE STEUERTECH
Inventor： BOELT HEINZ DIPL ING , WALSER FRANZ DIPL ING , WUNSCH GERD DR , STABEL UWE DR , SCHOENEBORN AXEL
Abstract: The invention relates to a process and a separation system for removing particles, in particular soot particles, from particle-containing process gas streams occurring in chemical or petrochemical plants. According to the invention, the particle removal is carried out in a partly thermally regenerable separation system. The particles are advantageously removed from the gas stream in a two-stage separation system, the first stage being composed of centrifugal separators, preferably multicyclones, and the second stage being composed of fine filters made of sintered metals, preferably of ferritic sintered metals. For the regeneration, the temperature is increased to a value above the ignition temperature of soot and, if required, an oxygen-containing auxiliary gas is added. The regeneration is preferably carried out periodically.
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公开(公告)号：DE59101524D1
公开(公告)日：1994-06-09
申请号：DE59101524
申请日：1991-02-09
Applicant: BASF AG
Inventor： STABEL UWE DR , GOSCH HANS-JUERGEN DR , FISCHER ROLF DR , HARDER WOLFGANG DR , HECHLER CLAUS DR
IPC: B01J21/16 , C07B61/00 , C07B63/04 , C07D307/08
Abstract: A process is claimed for the prodn of THF from mixts (I) contg THF, butane-1,4-diol (II), gamma-butyrolactone (III), succinate esters and alcohols, which are obtd by the catalytic hydrogenation of maleic, succinic or fumaric acid, or esters thereof, or maleic or succinic anhydride, in the presence of alcohols; the process comprises distn of the THF, alcohols and water, heating the residue at 100-250 deg C in the presence of a layer silicate (IV), distn of the THF and water formed in the reaction, and sepn of THF from the distillate. More specifically, (I) are produced by hydrogenation of maleic anhydride (MA) in the presence of butanols, and contain THF, butanol, propanol, (II), (III), dibutyl succinate (V) and water; distn of (I) before treatment with (IV) gives THF, propanol, butanol and water; traces of catalyst components are removed from the mixt before treatment with (IV).
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公开(公告)号：DE59305568D1
公开(公告)日：1997-04-10
申请号：DE59305568
申请日：1993-07-05
Applicant: LINDE AG , BASF AG , GST SYST ABSCHEIDE STEUERTECH
Inventor： BOELT HEINZ DIPL ING , WALSER FRANZ DIPL ING , WUNSCH GERD DR , STABEL UWE DR , SCHOENEBORN AXEL
Abstract: The invention relates to a process and a separation system for removing particles, in particular soot particles, from particle-containing process gas streams occurring in chemical or petrochemical plants. According to the invention, the particle removal is carried out in a partly thermally regenerable separation system. The particles are advantageously removed from the gas stream in a two-stage separation system, the first stage being composed of centrifugal separators, preferably multicyclones, and the second stage being composed of fine filters made of sintered metals, preferably of ferritic sintered metals. For the regeneration, the temperature is increased to a value above the ignition temperature of soot and, if required, an oxygen-containing auxiliary gas is added. The regeneration is preferably carried out periodically.
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公开(公告)号：DE4441699A1
公开(公告)日：1996-05-30
申请号：DE4441699
申请日：1994-11-24
Applicant: BASF AG
Inventor： STABEL UWE DR , WOERZ HELMUT DR , KOTKAMP RUEDIGER DR , FRIED ANDREAS DR
Abstract: In recycling synthetic waste in a steam cracker, the waste is melted under inert conditions, and converted to prods. at 370-550 degrees C. A distillate fraction is sepd. from the prods. at 150-280 degrees C and fed to a steam cracker as feed.
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公开(公告)号：CZ339495A3
公开(公告)日：1996-05-15
申请号：CZ339495
申请日：1994-05-20
Applicant: BASF AG
Inventor： STABEL UWE DR , WOERZ HELMUT DR , KOTKAMP REUDIGER DR , FRIED ANDREAS DR
Abstract: PCT No. PCT/EP94/01647 Sec. 371 Date Nov. 17, 1995 Sec. 102(e) Date Nov. 17, 1995 PCT Filed May 20, 1994 PCT Pub. No. WO95/03375 PCT Pub. Date Feb. 2, 1995A process for recycling plastic waste in a steam cracker, wherein a melt obtained from plastic waste is converted into products at from 400 DEG 550 DEG C., and a distillate fraction is separated off from the products at from 180 DEG to 280 DEG C. and is fed as feed material to a steam cracker.
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