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公开(公告)号：DE19824788A1
公开(公告)日：1999-12-09
申请号：DE19824788
申请日：1998-06-03
Applicant: BASF AG
Inventor： FEINDT HANS-JACOB , WITT MICHAEL , RIZK FARID , MAGIN ALBERT , BERTICH HEINZ , WALTER CHRISTIAN , SCHICKETANZ WALTER , GRUBER WOLFGANG
Abstract: Granules are concentrated in a side stream of the water used during granulation (for cooling and cutter lubrication). This side stream forms the conveying medium for the granules. Preferred features: The side stream of granulation water contains 15-35 wt%, preferably 15-25 wt% of granules. Separation between granulator (C) and storage location exceeds 200 m, preferably exceeding 500 m. Drying of granules takes place in the immediate vicinity of further treatment and/or storage. Side stream temperature after leaving the separator (D) is raised, especially through 5-40 deg K. Vertical relationships between: granulator, side stream handling plant (G), and if appropriate, the drying unit (H), facilitate granule conveying to further processing and/or storage.
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公开(公告)号：AU3167195A
公开(公告)日：1996-03-07
申请号：AU3167195
申请日：1995-07-28
Applicant: BASF AG
Inventor： KRONER MATTHIAS , SCHORNICK GUNNAR , FEINDT HANS-JACOB , MEYER THOMAS , LUDWIG ALFONS , METZMANN UDO
Abstract: PCT No. PCT/EP95/03003 Sec. 371 Date Feb. 12, 1997 Sec. 102(e) Date Feb. 12, 1997 PCT Filed Jul. 28, 1995 PCT Pub. No. WO96/05241 PCT Pub. Date Feb. 22, 1996A process for preparing polyaspartic acid by polycondensation of fine-particle aspartic acid at temperatures above 150 DEG C. in the presence of acidic catalysts, wherein first contact between the acidic catalysts and the fine-particle aspartic acid takes place in the reaction zone where the polycondensation takes place.
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公开(公告)号：DE59700874D1
公开(公告)日：2000-01-27
申请号：DE59700874
申请日：1997-05-27
Applicant: BASF AG
Inventor： BIALLAS BERND , DUSCHEK WOLFGANG , RIZK FARID , FEINDT HANS-JACOB
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公开(公告)号：BR9805747A
公开(公告)日：1999-12-14
申请号：BR9805747
申请日：1998-12-30
Applicant: BASF AG
Inventor： LANGE ARMIN , MICKLITZ WOLFGANG , KARER RAINER , EVERTZ KASPAR , MIHAN SHAHRAM , FEINDT HANS-JACOB , HECKER MANFRED , BAUER PETER , ROSENDORFER PHILIPP
IPC: C08K13/02 , C08F2/00 , C08F2/34 , C08F6/02 , C08F10/00 , C08F10/02 , C08F10/06 , C08F210/16 , C08F2/42
Abstract: Continuous gas phase polymerization for producing ethylene homopolymers and -copolymers, comprises polymerizing ethylene or monoolefin from but-1-en, pent-1-en, 2-methylpentene, hex-1-en, hept-1-en and oct-1-en in the a polymerization reactor; and endowing a catalyst poison with boiling point higher than a circle gas pipeline, and molecular weight greater than 100 g/mol at a position after the reactor, but before the cooler and compressor. Continuous gas phase polymerization for producing ethylene homopolymers and -copolymers, comprises polymerizing ethylene and/or monoolefin from but-1-en, pent-1-en, 2-methylpentene, hex-1-en, hept-1-en or oct-1-en, in the polymerization zone of a gas phase polymerization reactor at 30-125[deg]C and 1-100 bar in the gaseous phase in a finely divided polymer bed, in the presence of a metallocene catalyst in carrier form polymer, where a reactor gas is lead into the circle gas pipeline for the removal of the polymerization heat; and endowing a catalyst poison with boiling point higher than circle gas pipeline and molecular weight greater than 100 g/mol at a position after the reactor but before the cooler and compressor, for preventing polymer linings, such that the productivity of the catalyst is not essentially affected in the reactor.
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5.发明专利
公开(公告)号：CA2312092A1
公开(公告)日：1999-06-17
申请号：CA2312092
申请日：1998-11-26
Applicant: BASF AG
Inventor： HECKER MANFRED , LANGE ARMIN , ROSENDORFER PHILIPP , FEINDT HANS-JACOB , EVERTZ KASPAR , BAUER PETER , SCHWEIER GUNTHER , MICKLITZ WOLFGANG , KARER RAINER
Abstract: The invention relates to a continuous gas phase fluidization method for producing ethylene homopolymerisates and copolymerisates with a density (d) of 0.87 to 0.97 g/cm3. According to said method, ethylene or mixtures of ethylene and C3- to C8-.alpha.-monoolefins are (co)polymerised in the polymerisation zone of a gas phase fluidized bed reactor at pressures of 1 to 100 bar and at temperatures of 30 to 125 ~C in the gas phase in an intermixed bed of fine particulate polymerisate in the presence of a supported chromium catalyst. The polymerisation heat produced is evacuated by cooling the reactor gas, said reactor gas being guided in a closed circuit, and the resulting (co)polymerisate is transferred out of the gas phase fluidized bed reactor. In order to produce a (co)polymerisate of a pre-selected density (d), the (co)polymerisation is carried out at a temperature within a range limited by an upper envelope of equation (I) and a lower envelope of equation (II), the variables in said equations having the following meanings: TH = the highest reaction temperature in ~C; TN = the lowest reaction temperature in ~C; and d'= the numerical value of the density (d) of the (co)polymerisate to be produced.
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Patent Agency Ranking
公开(公告)号：AT179195T
公开(公告)日：1999-05-15
申请号：AT95927741
申请日：1995-07-28
Applicant: BASF AG
Inventor： KRONER MATTHIAS , SCHORNICK GUNNAR , FEINDT HANS-JACOB , MEYER THOMAS , LUDWIG ALFONS , METZMANN UDO
Abstract: PCT No. PCT/EP95/03003 Sec. 371 Date Feb. 12, 1997 Sec. 102(e) Date Feb. 12, 1997 PCT Filed Jul. 28, 1995 PCT Pub. No. WO96/05241 PCT Pub. Date Feb. 22, 1996A process for preparing polyaspartic acid by polycondensation of fine-particle aspartic acid at temperatures above 150 DEG C. in the presence of acidic catalysts, wherein first contact between the acidic catalysts and the fine-particle aspartic acid takes place in the reaction zone where the polycondensation takes place.
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公开(公告)号：AT163951T
公开(公告)日：1998-03-15
申请号：AT95924254
申请日：1995-06-16
Applicant: BASF AG
Inventor： KRONER MATTHIAS , SCHORNICK GUNNAR , FEINDT HANS-JACOB , SCHWEINZER JUERGEN
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公开(公告)号：DE59505719D1
公开(公告)日：1999-05-27
申请号：DE59505719
申请日：1995-07-28
Applicant: BASF AG
Inventor： KRONER MATTHIAS , SCHORNICK GUNNAR , FEINDT HANS-JACOB , MEYER THOMAS , LUDWIG ALFONS , METZMANN UDO
Abstract: PCT No. PCT/EP95/03003 Sec. 371 Date Feb. 12, 1997 Sec. 102(e) Date Feb. 12, 1997 PCT Filed Jul. 28, 1995 PCT Pub. No. WO96/05241 PCT Pub. Date Feb. 22, 1996A process for preparing polyaspartic acid by polycondensation of fine-particle aspartic acid at temperatures above 150 DEG C. in the presence of acidic catalysts, wherein first contact between the acidic catalysts and the fine-particle aspartic acid takes place in the reaction zone where the polycondensation takes place.
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公开(公告)号：BR9813430A
公开(公告)日：2000-10-17
申请号：BR9813430
申请日：1998-11-26
Applicant: BASF AG
Inventor： BAUER PETER , LANGE ARMIN , KARER RAINER , ROSENDORFER PHILIPP , HECKER MANFRED , SCHWEIER GUENTHER , MICKLITZ WOLFGANG , EVERTZ KASPAR , FEINDT HANS-JACOB
Abstract: A continuous vapor-phase fluidized-bed process for the preparation of ethylene homopolymers and copolymers having a density of from 0.87 to 0.97 g/cm in which ethylene or mixtures of ethylene and C3-C8 a-monoolefins are (co)polymerized in the presence of a supported chromium catalyst in the polymerization zone of a vapor-phase fluidized-bed reactor under pressures ranging from 1 to 100 bar and at temperatures ranging from 30° to 125° C. in the vapor phase in an agitated bed of bulk material comprising particulate polymer, the resultant heat of polymerization is removed by cooling the recirculated reactor gas and the resulting (co)polymer is removed from the vapor-phase fluidized-bed reactor, wherein, for the preparation of a (co)polymer of a specific density d, the (co)polymerization is carried out at a temperature which is in a range restricted by an upper envelope defined by equation Iand a lower envelope defined by equation IIin which the variables have the following meanings:TH is the highest reaction temperature in ° C.;TL is the lowest reaction temperature in ° C.;d' is the numerical value of the density d of the (co)polymer to be synthesized.
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公开(公告)号：AU1004199A
公开(公告)日：1999-07-22
申请号：AU1004199
申请日：1999-01-04
Applicant: BASF AG
Inventor： LANGE ARMIN , MICKLITZ WOLFGANG , KARER RAINER , EVERTZ KASPAR , MIHAN SHAHRAM , FEINDT HANS-JACOB , HECKER MANFRED , BAUER PETER , ROSENDORFER PHILIPP
Abstract: Continuous gas phase polymerization for producing ethylene homopolymers and -copolymers, comprises polymerizing ethylene or monoolefin from but-1-en, pent-1-en, 2-methylpentene, hex-1-en, hept-1-en and oct-1-en in the a polymerization reactor; and endowing a catalyst poison with boiling point higher than a circle gas pipeline, and molecular weight greater than 100 g/mol at a position after the reactor, but before the cooler and compressor. Continuous gas phase polymerization for producing ethylene homopolymers and -copolymers, comprises polymerizing ethylene and/or monoolefin from but-1-en, pent-1-en, 2-methylpentene, hex-1-en, hept-1-en or oct-1-en, in the polymerization zone of a gas phase polymerization reactor at 30-125[deg]C and 1-100 bar in the gaseous phase in a finely divided polymer bed, in the presence of a metallocene catalyst in carrier form polymer, where a reactor gas is lead into the circle gas pipeline for the removal of the polymerization heat; and endowing a catalyst poison with boiling point higher than circle gas pipeline and molecular weight greater than 100 g/mol at a position after the reactor but before the cooler and compressor, for preventing polymer linings, such that the productivity of the catalyst is not essentially affected in the reactor.
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