-
公开(公告)号：ES2250371T3
公开(公告)日：2006-04-16
申请号：ES01919355
申请日：2001-02-28
Applicant: BASF AG
Inventor： STAMM ARMIN , KNEUPER HEINZ-JOSEF , HENKELMANN JOCHEM , WEBER THEODOR , BUSCH RALPH
Abstract: Procedimiento para la obtención de cloruros de los ácidos clorocarboxílicos de la fórmula (I) en la que R1 y R2 significan, independientemente entre sí, un átomo de hidrógeno, un resto alifático, aromático o aralifático insubstituido o substituido, con 1 hasta 20 átomos de carbono, un halógeno, un grupo nitro o un grupo ciano, e Y significa una cadena alquileno con 1 hasta 10 átomos de carbono en la cadena, que está insubstituida o que está substituida por restos alifáticos, aromáticos o aralifáticos, insubstituidos o substituidos, con 1 hasta 20 átomos de carbono, por halógeno, por grupos nitros y/o por grupos ciano, pudiendo estar interrumpida la cadena alquileno por un grupo éter, por un grupo tioéter, por un grupo amino terciario o por un grupo ceto, pudiendo estar enlazados entre sí los citados restos alifáticos, aromáticos o aralifáticos, insubstituidos o substituidos, con 1 hasta 20 átomos de carbono de Y y/o de R1 y/o de R2, formando un sistema no aromático, caracterizado porquese hace reaccionar una lactona de la fórmula (II) en la que R1, R2 e Y tienen el significado precedentemente indicado, con cloruro de hidrógeno y fosgeno en presencia de un catalizador, caracterizado porque se alimenta cloruro de hidrógeno antes y/o durante la adición de fosgeno, comenzándose con la introducción de cloruro de hidrógeno solamente a partir de una temperatura de 60ºC, como mínimo, y empleándose como catalizador un compuesto de piridina.
-
公开(公告)号：DE50205702D1
公开(公告)日：2006-04-13
申请号：DE50205702
申请日：2002-04-17
Applicant: BASF AG
Inventor： STAMM ARMIN , KNEUPER HEINZ-JOSEF , RITTINGER STEFAN , DRANSFELD PETER , SCHILDBERG HANS-PETER , HEILIG MANFRED , WEBER THEODOR
Abstract: A method is provided for the intrinsically safe handling of 3-chloropropyne in the presence of a diluent with a boiling point ranging from -50° C. (223 K) to 200° C. (473 K) under atmospheric pressure, wherein the concentration of 3-chloropropyne in the liquid phase and in the gas phase is kept below the concentrations capable of deflagration by means of the type and amount of the diluent, the temperature and the total system pressure, together with the use of a 3-chloropropyne prepared, stored or transported in this way in the synthesis of dyestuffs, pharmaceutical and agricultural active ingredients, electroplating auxiliaries, disinfectants, steroids and growth hormones.
-
公开(公告)号：CZ20032891A3
公开(公告)日：2004-04-14
申请号：CZ20032891
申请日：2002-04-17
Applicant: BASF AG
Inventor： STAMM ARMIN , KNEUPER HEINZ JOSEF , RITTINGER STEFAN , DRANSFELD PETER , SCHILDBERG HANS PETER , HEILIG MANFRED , WEBER THEODOR
Abstract: A method is provided for the intrinsically safe handling of 3-chloropropyne in the presence of a diluent with a boiling point ranging from -50° C. (223 K) to 200° C. (473 K) under atmospheric pressure, wherein the concentration of 3-chloropropyne in the liquid phase and in the gas phase is kept below the concentrations capable of deflagration by means of the type and amount of the diluent, the temperature and the total system pressure, together with the use of a 3-chloropropyne prepared, stored or transported in this way in the synthesis of dyestuffs, pharmaceutical and agricultural active ingredients, electroplating auxiliaries, disinfectants, steroids and growth hormones.
-
公开(公告)号：HU222026B1
公开(公告)日：2003-03-28
申请号：HU0003768
申请日：1998-08-28
Applicant: BASF AG
Inventor： HENKELMANN JOCHEM , STAMM ARMIN , WEBER THEODOR , WEYER HANS-JUERGEN
IPC: B01J31/02 , C07B61/00 , C07C329/02
Abstract: PCT No. PCT/EP98/05525 Sec. 371 Date Feb. 17, 2000 Sec. 102(e) Date Feb. 17, 2000 PCT Filed Aug. 28, 1998 PCT Pub. No. WO99/11611 PCT Pub. Date Mar. 11, 1999A catalyst used for preparing thiochloroformates by reacting thiols with phosgene is a cyclic urea or cyclic thiourea which may be in the form of a salt obtainable by reaction with a hydrohalic acid or phosgene.
-
公开(公告)号：ES2174494T3
公开(公告)日：2002-11-01
申请号：ES98948890
申请日：1998-08-28
Applicant: BASF AG
Inventor： WEYER HANS-JURGEN , STAMM ARMIN , WEBER THEODOR , HENKELMANN JOCHEM
IPC: B01J31/02 , C07B61/00 , C07C329/02
Abstract: PCT No. PCT/EP98/05525 Sec. 371 Date Feb. 17, 2000 Sec. 102(e) Date Feb. 17, 2000 PCT Filed Aug. 28, 1998 PCT Pub. No. WO99/11611 PCT Pub. Date Mar. 11, 1999A catalyst used for preparing thiochloroformates by reacting thiols with phosgene is a cyclic urea or cyclic thiourea which may be in the form of a salt obtainable by reaction with a hydrohalic acid or phosgene.
-
Patent Agency Ranking
公开(公告)号：CA2444800A1
公开(公告)日：2002-10-31
申请号：CA2444800
申请日：2002-04-17
Applicant: BASF AG
Inventor： RITTINGER STEFAN , KNEUPER HEINZ-JOSEF , STAMM ARMIN , WEBER THEODOR , HEILIG MANFRED , DRANSFELD PETER , SCHILDBERG HANS-PETER
Abstract: The invention relates to a method for the intrinsically safe handling of 3- chlorpropyne in the presence of a diluent, which has a boiling point under normal pressure in the range of -50 ~C (223 K) to 200 ~C (473 K). According to the method, the concentration of 3-chloropropyne in the liquid phase and in the gaseous phase is maintained below the concentrations at which deflagrati on occurs, by means of the type and quantity of the diluent, the temperature an d the total pressure of the system. The invention also relates to the use of 3 - chloropropyne produced, stored or transported in this manner for the synthes is of dyes, pharmaceutical and agricultural active ingredients, electroplating auxiliary agents, disinfection agents, steroids and growth hormones.
-
公开(公告)号：ES2169889T3
公开(公告)日：2002-07-16
申请号：ES98112986
申请日：1998-07-13
Applicant: BASF AG
Inventor： AUER HEINZ , KRUGER SIEGFRIED , SCHOLL STEPHAN DR , WEBER THEODOR , MELDER JOHANN-PETER DR
Abstract: Recovery of neopentyl hydroxypivalate (I) from a mixture containing (I), products (II) of lower boiling point, products (III) of higher boiling point and inorganic salts (IV) is carried out in 2 separation stages. In stage (1), the mixture is fed to a wiped film evaporator; (III) and (IV) are discharged from the sump; and a vapor stream of (I), (II) and (III) is discharged via the top to a heat transfer unit, where it is condensed. In stage (2), the condensate is fed into a rectifying column with a second evaporator and heat transfer; a vapor stream of (II) is discharged at the top, condensed and optionally partly recycled as reflux and partly discharged; a vapor stream of (I) is discharged at the side and condensed; and a stream of (I) and (III) is discharged from the sump and (partly) passed to the second evaporator, the vapor from this evaporator being (partly) recycled to the lower zone of the column. Also claimed is the apparatus used.
-
公开(公告)号：DE59803565D1
公开(公告)日：2002-05-02
申请号：DE59803565
申请日：1998-11-21
Applicant: BASF AG
Inventor： WEYER HANS-JUERGEN , STAMM ARMIN , WEBER THEODOR , HENKELMANN JOCHEM
Abstract: The present invention provides process for the preparation of chlorocarbonyl chlorides of the formula IwhereR1 is for example hydrogen or C1- to C20-alkyl andY is for example a saturated or mono- or polyolefinically unsaturated C2-C8-alkylene chain,by reacting lactones with a chlorinating agent in the presence of a urea compound.
-
公开(公告)号：DE19824929A1
公开(公告)日：1999-12-09
申请号：DE19824929
申请日：1998-06-04
Applicant: BASF AG
Inventor： WEYER HANS-JUERGEN , STAMM ARMIN , WEBER THEODOR , HENKELMANN JOCHEM
Abstract: The invention relates to a method for producing alkyl chloride, alkenyl chloride and alkinyl chloride from alcohols by means of a reaction with a chlorinating agent in the presence of a catalyst which is a urea compound of formula (I): R R N-CX-NR R and/or a urea compound of formula (II) and/or a urea compound of formula (III).
-
公开(公告)号：DE3409063A1
公开(公告)日：1985-09-19
申请号：DE3409063
申请日：1984-03-13
Applicant: BASF AG
Inventor： HERTEL OTTO DR , JESCHEK GERHARD DR , KLINK WALTER DR , KOERNIG WOLFGANG DR , WEBER THEODOR , RATEIKE FRITZ
Abstract: A process for the preparation of pourable choline chloride/silica powders by mixing silica with choline chloride and, where appropriate, drying this mixture, wherein spray-dried or fluidized bed-dried silica which has a particle size of from 30 to 250 mu m is mixed with an aqueous choline chloride solution which contains from 70 to 80% by weight, based on the solution, of choline chloride and is at from 40 DEG to 80 DEG C., thereafter from 0.05 to 0.4% by weight, based on the mixture, of magnesium stearate or calcium stearate is added and, if appropriate, the resulting mixture is dried.
-
-
-
-
-
-
-
-
-
Search Results
75
records
(took 0.025 seconds)
