公开(公告)号：DE3404764A1

公开(公告)日：1985-08-14

申请号：DE3404764

申请日：1984-02-10

Applicant: BASF AG

Inventor： MUELLER-TAMM HEINZ DR ,  KOLK ERICH DR ,  FAUTH KARL-HEINZ ,  MOHR HEINRICH DR

IPC: C08F2/38 ,  C08F2/42 ,  C08F110/10

公开(公告)号：AT156144T

公开(公告)日：1997-08-15

申请号：AT95108203

申请日：1995-05-30

Applicant: BASF AG

Inventor： KOELLE PETER DR ,  MUELLER PATRIK DR ,  HEMMERICH RAINER DR ,  KOLK ERICH DR

IPC: C08F4/64 ,  C08F4/642 ,  C08F4/646 ,  C08F10/00

Abstract: Processing Ziegler-Natta (S-N) catalyst systems contg. (a) a Ti-contg. solid component contg. electron donor(s), in the form of a suspension in inert solvent, and as co-catalyst; (b) an Al cpd.; and (c) opt. other electron donor cpds. comprises removing the solvent from suspension (a) by (1) filtering the suspension and then (2) removing more solvent by applying a pressure difference at not above 100 degrees C. Also claimed are the obtd. catalyst systems.

公开(公告)号：ES2090441T3

公开(公告)日：1996-10-16

申请号：ES92116233

申请日：1992-09-23

Applicant: BASF AG

Inventor： FUNK GUIDO DR ,  HEMMERICH RAINER DR ,  GROPPER HANS DR ,  KOLK ERICH DR ,  FOLLMER GODOFREDO DR

IPC: C08F4/02 ,  C08F4/06 ,  C08F4/22 ,  C08F4/24 ,  C08F4/69 ,  C08F10/00 ,  C08F10/02

Abstract: In a new process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, first a support gel (1) is prepared by introducing a sodium water glass or potassium water glass solution into a swirling stream of an aqueous mineral acid optionally containing aluminium ions longitudinally and tangentially to the stream, spraying the resultant silicic acid hydrosol in drop form into a gaseous medium, and allowing it to solidify to form a hydrogel, and freeing the resultant hydrogel, without prior ageing, from salts by washing and optionally from some of the water by extraction with alcohols and/or ketones, and then drying the hydrogel. This gives the support gel (1), which is ground and fractionated according to particle size. In a second process step, the support gel (1) is charged with chromium trioxide or with a chromium compound which can be converted into chromium trioxide, after which the resultant chromium-containing support gel (2) is heated at from 400 to 1100 DEG C for from 10 to 1000 minutes in an anhydrous gas stream containing oxygen in a concentration greater than 10% by volume. It is essential for the process according to the invention that the drying of the hydrogel to form the support gel (1) takes place in a high-speed drier within a maximum time of 300 seconds at an inlet temperature of from 200 to 600 DEG C. The supported catalyst prepared in this way gives homopolymers and copolymers of ethylene having excellent low-temperature toughness.

公开(公告)号：DE59206844D1

公开(公告)日：1996-09-05

申请号：DE59206844

申请日：1992-09-23

Applicant: BASF AG

Inventor： FUNK GUIDO DR ,  HEMMERICH RAINER DR ,  GROPPER HANS DR ,  KOLK ERICH DR ,  FOLLMER GODOFREDO DR

IPC: C08F4/02 ,  C08F4/06 ,  C08F4/22 ,  C08F4/24 ,  C08F4/69 ,  C08F10/00 ,  C08F10/02

Abstract: In a new process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, first a support gel (1) is prepared by introducing a sodium water glass or potassium water glass solution into a swirling stream of an aqueous mineral acid optionally containing aluminium ions longitudinally and tangentially to the stream, spraying the resultant silicic acid hydrosol in drop form into a gaseous medium, and allowing it to solidify to form a hydrogel, and freeing the resultant hydrogel, without prior ageing, from salts by washing and optionally from some of the water by extraction with alcohols and/or ketones, and then drying the hydrogel. This gives the support gel (1), which is ground and fractionated according to particle size. In a second process step, the support gel (1) is charged with chromium trioxide or with a chromium compound which can be converted into chromium trioxide, after which the resultant chromium-containing support gel (2) is heated at from 400 to 1100 DEG C for from 10 to 1000 minutes in an anhydrous gas stream containing oxygen in a concentration greater than 10% by volume. It is essential for the process according to the invention that the drying of the hydrogel to form the support gel (1) takes place in a high-speed drier within a maximum time of 300 seconds at an inlet temperature of from 200 to 600 DEG C. The supported catalyst prepared in this way gives homopolymers and copolymers of ethylene having excellent low-temperature toughness.

公开(公告)号：ES2083886T3

公开(公告)日：1996-04-16

申请号：ES94113269

申请日：1994-08-25

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  MULLER HANS-JOACHIM DR ,  KLIMESCH ROGER DR ,  WISTUBA ECKEHARDT DR ,  PLAUMANN HEINZ DR ,  KOLK ERICH DR

IPC: C08F4/04 ,  C08F4/14 ,  C08F4/32 ,  C08F8/46 ,  C08F255/08 ,  C09J151/06

公开(公告)号：AT73141T

公开(公告)日：1992-03-15

申请号：AT87104968

申请日：1987-04-03

Applicant: BASF AG

Inventor： MUELLER-MALL RUDOLF DR ,  FUNK GUIDO DR ,  BACHL ROBERT DR ,  HENNENBERGER PETER DR ,  KOLK ERICH DR

IPC: C08F2/06 ,  C08F2/14 ,  C08F2/18 ,  C08F10/02 ,  C08F210/16

公开(公告)号：DE3460588D1

公开(公告)日：1986-10-09

申请号：DE3460588

申请日：1984-02-16

Applicant: BASF AG

Inventor： MUELLER-TAMM HEINZ DR ,  SCHICK HANS DR ,  HENNENBERGER PETER DR ,  KOLK ERICH DR

IPC: C08F2/04 ,  C08F2/06 ,  C08F4/16 ,  C08F4/28 ,  C08F210/00 ,  C08F210/16

公开(公告)号：DE2161771A1

公开(公告)日：1973-06-14

申请号：DE2161771

申请日：1971-12-13

Applicant: BASF AG

Inventor： FRIELINGSDORF HANS DR ,  MUELLER-TAMM HEINZ DR ,  HOEHR LOTHAR DR ,  KOLK ERICH DR

IPC: C08F4/00 ,  C08F4/60 ,  C08F4/68 ,  C08F10/00 ,  B01J11/84

Abstract: 1404028 Particulate Zeigler catalyst-wax compositions BADISCHE ANILIN- & SODAFABRIK AG 12 Dec 1972 [13 Dec 1971] 57257/72 Heading C3P A Zeigler catalyst, preferably supported on an inorganic carrier, is obtained in particulate form embedded in a wax by (a) forming a melt at 40‹ to 120‹ C. of a wax melting above 30‹ C. and the Zeigler catalyst, (b) passing the melt continuously, e.g. as a stream of droplets, into a liquefied gas, inert to the catalyst and wax, having a temperature of -30‹ to -200‹C. and in motion at a modified Reynolds number of from 3À4.10 3 to 5À10 4 , and (c) recovering the particulate catalyst composition from the liquid, e.g. by allowing the gas to evaporate. The product has a particle diameter in the range 0À1 to 5 mm. and may be used for polymerization of olefins, e.g. ethylene and propylene, the catalyst being freed from the wax by melting. In examples, waxes used are paraffin wax (m.p. 69‹ to 73‹ C.) or a mixture thereof with a polyvinyl ether wax (m.p. 56‹ C), the liquefied gas is nitrogen at - 196‹ C. or liquefied propane at -78‹ C., and the catalysts are magnesium oxide- or magnesium aluminium oxide-supported mixtures of titanium tetrachloride and aluminium triethyl or diethyl aluminium chloride.

公开(公告)号：DE2142048A1

公开(公告)日：1973-03-01

申请号：DE2142048

申请日：1971-08-21

Applicant: BASF AG

Inventor： MUELLER-TAMM HEINZ DR ,  FRIELINGSDORF HANS DR ,  NICKL JOHANN DR ,  GRUBER WOLFGANG DR ,  KOLK ERICH DR

IPC: C08F4/00 ,  C08F2/00 ,  C08F4/60 ,  C08F10/00 ,  C08F1/28

Abstract: Catalyst carrier is prod by heating Mg (Sn(OH)6 to 50-600 degrees C, pef. 200-450 degrees C for 1-50 hrs, pref. 2-10 hrs., the shorter the heating time the higher the temp and vice versa.

公开(公告)号：DE2003125A1

公开(公告)日：1971-07-29

申请号：DE2003125

申请日：1970-01-24

Applicant: BASF AG

Inventor： WISSEROTH KARL DR ,  KOLK ERICH DR

IPC: C08F10/02 ,  C08F3/06

Abstract: Ethylene is polymerized in the gaseous phase in presence of a Ziegler catalyst system. The catalyst components are pre-mixed as 0.1-20 wt. % sols. and the catalyst suspension obtd. is introduced into the reactor at that point in time at which the catalyst system reaches its highest reactivity. The process avoids disadvantages of separate charging of catalyst components e.g. loss of reactivity, undesirable polymer formation at inaccessible places in the reactor resulting in difficult heat transfer and possible clogging of appts.