NO794291L - PROCEDURE FOR PREPARING ETHYLENE POLYMERS WITH WIDE MOLECULE WEIGHT DISTRIBUTION - Google Patents

PROCEDURE FOR PREPARING ETHYLENE POLYMERS WITH WIDE MOLECULE WEIGHT DISTRIBUTION

Info

Publication number
NO794291L
NO794291L NO794291A NO794291A NO794291L NO 794291 L NO794291 L NO 794291L NO 794291 A NO794291 A NO 794291A NO 794291 A NO794291 A NO 794291A NO 794291 L NO794291 L NO 794291L
Authority
NO
Norway
Prior art keywords
ethylene
degrees
ethylene polymers
procedure
temperature
Prior art date
Application number
NO794291A
Other languages
Norwegian (no)
Other versions
NO157299B (en
NO157299C (en
Inventor
Jean-Pierre Machon
Pierre Durand
Original Assignee
Charbonnages Ste Chimique
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Charbonnages Ste Chimique filed Critical Charbonnages Ste Chimique
Publication of NO794291L publication Critical patent/NO794291L/en
Publication of NO157299B publication Critical patent/NO157299B/en
Publication of NO157299C publication Critical patent/NO157299C/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02—Ethene

Abstract

1. A manufacturing process for ethylene polymers with a melt index between 0.1 and 2 and a polydispersity index exceeding 10, by polymerizing ethylene in the presence of a catalytic system comprising at least one halogenated compound of a transition metal and at least one activator selected from the hydrides and the organo-metallic compounds of the metals of groups I through III of the periodic table, in a set of two reactors operating under different temperature and pressure conditions, characterized in that the first reactor operates at a pressure between 800 and 2,000 bars and at a temperature between 160 degrees C and 260 degrees C and the second reactor operates at a pressure between 300 and 600 bars and at a temperature between 240 degrees C and 340 degrees C, the ethylene polymerization taking place in each of said reactors in the total absence of hydrogen and the flow of ethylene feeding the second reactor representing from 17 to 69% of the total ethylene flow.
NO794291A 1978-12-28 1979-12-27 PROCEDURE FOR THE PREPARATION OF ETHYLENE POLYMERS AND ETHYLENE-ALFA-OLEFIN COPOLYMERS WITH WIDE MOLECULE WEIGHT DISTRIBUTION AND PLANT FOR USE BY THE PROCEDURE. NO157299C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7836624A FR2445343A1 (en) 1978-12-28 1978-12-28 PROCESS FOR THE ENLARGEMENT OF THE MOLECULAR DISTRIBUTION OF POLYETHYLENE USING TWO REACTORS OPERATING AT VERY DIFFERENT PRESSURES AND TEMPERATURES AND IN THE ABSENCE OF HYDROGEN

Publications (3)

Publication Number Publication Date
NO794291L true NO794291L (en) 1980-07-01
NO157299B NO157299B (en) 1987-11-16
NO157299C NO157299C (en) 1988-02-24

Family

ID=9216641

Family Applications (1)

Application Number Title Priority Date Filing Date
NO794291A NO157299C (en) 1978-12-28 1979-12-27 PROCEDURE FOR THE PREPARATION OF ETHYLENE POLYMERS AND ETHYLENE-ALFA-OLEFIN COPOLYMERS WITH WIDE MOLECULE WEIGHT DISTRIBUTION AND PLANT FOR USE BY THE PROCEDURE.

Country Status (12)

Country Link
EP (1) EP0013246B1 (en)
JP (1) JPS55112206A (en)
AT (1) ATE2083T1 (en)
BR (1) BR7908524A (en)
CA (1) CA1147499A (en)
CS (1) CS216518B2 (en)
DE (1) DE2964395D1 (en)
ES (2) ES487316A0 (en)
FR (1) FR2445343A1 (en)
MX (1) MX152348A (en)
NO (1) NO157299C (en)
PT (1) PT70555A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495162B1 (en) * 1980-12-02 1985-09-27 Charbonnages Ste Chimique ETHYLENE POLYMERIZATION CATALYST COMPRISING AN AROMATIC COMPOUND OF SILICON
JPS5821406A (en) * 1981-07-30 1983-02-08 Sumitomo Chem Co Ltd Production of ethylene polymer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1548203A (en) * 1975-08-05 1979-07-04 Stamicarbon Process and apparatus for the preparation of polyolefins with a widge molecular-weight distribution
FR2346374A1 (en) * 1976-03-31 1977-10-28 Charbonnages Ste Chimique PERFECTED PROCESS FOR POLYMERIZATION OF ETHYLENE UNDER HIGH PRESSURE

Also Published As

Publication number Publication date
BR7908524A (en) 1980-09-23
ES495052A0 (en) 1981-11-16
CS216518B2 (en) 1982-11-26
JPS6217603B2 (en) 1987-04-18
EP0013246B1 (en) 1982-12-22
MX152348A (en) 1985-07-02
NO157299B (en) 1987-11-16
ES8100805A1 (en) 1980-12-16
NO157299C (en) 1988-02-24
ATE2083T1 (en) 1983-01-15
DE2964395D1 (en) 1983-01-27
FR2445343A1 (en) 1980-07-25
ES487316A0 (en) 1980-12-16
FR2445343B1 (en) 1982-10-29
JPS55112206A (en) 1980-08-29
CA1147499A (en) 1983-05-31
ES8200706A1 (en) 1981-11-16
PT70555A (en) 1980-01-01
EP0013246A1 (en) 1980-07-09

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