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公开(公告)号：CZ64093A3
公开(公告)日：1994-06-15
申请号：CZ64093
申请日：1993-04-14
Applicant: BASF AG
Inventor： STABEL UWE DR , WUNSCH GERD DR , WOERZ HELMUT DR , FRIED ANDREAS DR , KOTKAMP RUEDIGER DR
IPC: C07C7/00 , C07C7/04 , C07C13/465 , C07C15/44 , C07C15/46 , C08J11/14 , C08L25/02 , C10G7/00 , C10G9/00 , C10G70/04
Abstract: In a process for the recovery of a polymerizable useful fraction, consisting of styrene, methylstyrenes, vinyltoluenes, indene, methylindenes and fractions whose boiling points are between styrene and methylindenes, from the crack gases of a steam cracker, the sidestream of the crack gas column is divided, by means of a distillation unit, into the useful fraction and into fractions which are recycled to the crack gas column.
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公开(公告)号：DE2723156A1
公开(公告)日：1978-12-07
申请号：DE2723156
申请日：1977-05-23
Applicant: BASF AG
Inventor： OSTERTAG WERNER DR , WUNSCH GERD DR , KIENER VOLKER DR , ERTL GERT DR , HETZEL ECKHARD DIPL ING , SCHREINER SIEGFRIED DR , VOELKL ERFRIED DR , KOESTER HARTWIG DR
IPC: C01B17/66
Abstract: Prodn. of anhydrous Na dithionite (I) by reacting SO2 with Na formate and NaOH in aq. -alcoholic medium, is now carried out in presence of alkali and/or ammonium salts of oxalic acid and/or EDTA. Pref. the concn. of chelating agent at the end of reaction is not below 0.001 g./l. Decomposition of (I) induced by metal ions (esp. Fe, Cr and Ni, introduced with the reactants or generated by corrosion of the reactor) is inhibited by the chelating agents.
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公开(公告)号：DE2111672A1
公开(公告)日：1972-09-21
申请号：DE2111672
申请日：1971-03-11
Applicant: BASF AG
Inventor： BEWERT WOLFGANG DR , WUNSCH GERD DR , ADOLPHI HEINRICH DR
Abstract: Title esters of the formula (where R1 and R2 are lower R1R2P-(S)n-CO-CO-R4 alkoxy or lower alkyl, R4 is lower alkoxy, phenoxy or lower dialkylamino, and n is 0 or 1), which are esp. active against Musca domestica, Fannia canicularis, Ceratitis capitata, Dacus oleae and Lucilia sericata, are prepd. by reacting a cpd. R1R2-P-R3 (where R3 is OCH3, OC2H5, SCH3 or SC2H5) with a cpd. halogen-CO-CO-R4. The reaction can be carried out in the presence of absence of solvents at 20-130 degrees C.
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公开(公告)号：DE1618130B
公开(公告)日：1971-05-19
申请号：DE1618130D
申请日：1967-04-03
Applicant: BASF AG
Inventor： GEIERHAAS HERBERT DR , WINTERSBERGER KARL DR , WUNSCH GERD DR
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公开(公告)号：DE1954827A1
公开(公告)日：1971-05-06
申请号：DE1954827
申请日：1969-10-31
Applicant: BASF AG
Inventor： BIPP HANSJOERG DR , LUEDEMANN HORST DR , WINTERSBERGER KARL DR , PETRI NORBERT DR , WUNSCH GERD DR
IPC: B01J21/02 , C07B61/00 , C07D201/04 , B01J11/46
Abstract: Catalyst is produced by impregnating spherical carrier beads with particle size 0.1-2.0mm with (cpd. containing) boric acid under pressure in presence of solvating agent. This catalyst is used in gas phase conversion of oximes, pref. 5-12, esp. 6C cycloalkanone-oximes to corresponding lactams. It has much lower attrition than clip catalysts.
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Patent Agency Ranking
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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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：DE2429177A1
公开(公告)日：1976-01-22
申请号：DE2429177
申请日：1974-06-18
Applicant: BASF AG
Inventor： STECK WERNER DR , WUNSCH GERD DR , DEIGNER PAUL DR , OSTERTAG WERNER DR , UHL KARL DR ING
Abstract: In the prodn. of thin cohesive magnetic films based on Fe oxides and opt. Co oxides or their redn. prods. on substrates by gas plating, with thermal decompsn., with complex cpds. (I) of Fe and opt. Co and/or Ni on the hot substrate surface in the presence of O2 and redn. of the oxide film with H2, a crystalline metal oxide film is deposited on the surface at 150-300 degrees C in the presence of an inert gas or inert gas-H2 stream contg. 0.05-1.3 vol.% O2 or 0.25-6.5% air and the oxide film is reduced to a magnetic oxide or metallic film with H2 or H2 mixts. at 250-400 degrees C. Binder-free magnetic films with good adhesion and reproducible magnetic properties can be produced using only 2 stages and under conditions suitable for the Al discs normally used as substrate, for which thermal treatment above 300 degrees C and esp. above 380 degrees C is excluded.
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公开(公告)号：DE2145805A1
公开(公告)日：1973-03-22
申请号：DE2145805
申请日：1971-09-14
Applicant: BASF AG
Inventor： FUCHS HUGO DR , LAUTENBACH DIETER DR , WUNSCH GERD DR
IPC: C02F1/26 , C07D201/16 , B01D53/14
Abstract: In lactam prodn (by turbulent bed catalytic rearrangement of cycloalkanone oxime) the purification of residual gases and water reducing BOD of waste by condensing the gaseous mixture from the reaction zone in a baffled column, while simultaneously washing with a counter-current of toluene, cyclohexane or xylene introduced at the head of the column.
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公开(公告)号：DE1618130B1
公开(公告)日：1971-05-19
申请号：DE1618130D
申请日：1967-04-03
Applicant: BASF AG
Inventor： GEIERHAAS HERBERT DR , WINTERSBERGER KARL DR , WUNSCH GERD DR
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