GB956738A - Production of polyethylene - Google Patents

Production of polyethylene

Info

Publication number
GB956738A
GB956738A GB2388362A GB2388362A GB956738A GB 956738 A GB956738 A GB 956738A GB 2388362 A GB2388362 A GB 2388362A GB 2388362 A GB2388362 A GB 2388362A GB 956738 A GB956738 A GB 956738A
Authority
GB
United Kingdom
Prior art keywords
ethylene
reactor
oxygen
stream
cold
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2388362A
Inventor
Hans Eilbracht
Heinrich Friedenreich
Siebert Goebel
Manfred Haeberle
Boris Lehmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB956738A publication Critical patent/GB956738A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Ethylene is polymerized in tubular reactors at 1,000-4,000 Atm and 150-300 DEG C. with feeding of cold ethylene at several successive points in the reactor and using up to 10-1% oxygen as catalyst which is added preferably in solution, to the cold ethylene in such amount that the oxygen concentration in the united gas stream at the points of confluence in the reactor is at least 0.5 x 10-3%, preferably 10-3-10-2%, and the speed of the reaction mixture in the reactor is at least 2.5 m/sec., e.g. up to 10 m/sec. The main ethylene stream may first be heated to e.g. 170-200 DEG C. The cold ethylene stream may be at 10-100 DEG C. and the oxygen concentration may be higher in the second cold ethylene stream than in the first. The oxygen may be dissolved in water, alcohols, e.g. methanol, or hydrocarbons e.g. benzene. The polyethylene may be used to form articles or tubular film.
GB2388362A 1961-06-29 1962-06-21 Production of polyethylene Expired GB956738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0063084 1961-06-29

Publications (1)

Publication Number Publication Date
GB956738A true GB956738A (en) 1964-04-29

Family

ID=6973833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2388362A Expired GB956738A (en) 1961-06-29 1962-06-21 Production of polyethylene

Country Status (2)

Country Link
BE (1) BE619514A (en)
GB (1) GB956738A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124011A1 (en) * 1970-05-15 1971-11-25 Exxon Research Engineering Co Process and device for the polymerization of ethylene
US4135044A (en) * 1977-08-08 1979-01-16 Exxon Research & Engineering Co. Process for achieving high conversions in the production of polyethylene
US4175169A (en) * 1971-03-19 1979-11-20 Exxon Research & Engineering Co. Production of polyethylene

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293233A (en) * 1963-04-09 1966-12-20 Rexall Drug Chemical Process for polymerizing ethylene at high pressures in the presence of a mixture of peroxides having different half lives

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124011A1 (en) * 1970-05-15 1971-11-25 Exxon Research Engineering Co Process and device for the polymerization of ethylene
US4175169A (en) * 1971-03-19 1979-11-20 Exxon Research & Engineering Co. Production of polyethylene
US4135044A (en) * 1977-08-08 1979-01-16 Exxon Research & Engineering Co. Process for achieving high conversions in the production of polyethylene

Also Published As

Publication number Publication date
BE619514A (en)

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