GB1102369A - Process for control of ethylene polymerization at high pressure - Google Patents

Process for control of ethylene polymerization at high pressure

Info

Publication number
GB1102369A
GB1102369A GB227067A GB227067A GB1102369A GB 1102369 A GB1102369 A GB 1102369A GB 227067 A GB227067 A GB 227067A GB 227067 A GB227067 A GB 227067A GB 1102369 A GB1102369 A GB 1102369A
Authority
GB
United Kingdom
Prior art keywords
temperature
control
polymerization
ethylene
high pressure
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
GB227067A
Inventor
Manfred Ratzsch
Reinhard Nitzsche
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.)
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
Original Assignee
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
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 Leuna Werke GmbH, Leuna Werke Walter Ulbright Germany VEB filed Critical Leuna Werke GmbH
Publication of GB1102369A publication Critical patent/GB1102369A/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)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

In a process for the control of the polymerization of ethylene at pressures above 500 atmospheres and at a temperature of 50 DEG to 400 DEG C. in the presence of a radical forming initiator in a tubular reactor in which a number of temperature sensing devices are mounted and in which the pressure is temporarily reduced by 5 to 25% impulse-wise, temperature levels are assigned to the reactor at the locations of the temperature sensing devices which levels correspond to the normal course of the reaction, and the pressure reduction is effected only when the temperature measured by one of the devices deviates from the assigned temperature by 5 DEG to 30 DEG C. Apparatus suitable for carrying out the process of the invention is described and illustrated, and the polymerization of ethylene in the presence of t-butyl perbenzoate is described.
GB227067A 1966-09-02 1967-01-16 Process for control of ethylene polymerization at high pressure Expired GB1102369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV0031855 1966-09-02

Publications (1)

Publication Number Publication Date
GB1102369A true GB1102369A (en) 1968-02-07

Family

ID=7586760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB227067A Expired GB1102369A (en) 1966-09-02 1967-01-16 Process for control of ethylene polymerization at high pressure

Country Status (2)

Country Link
DE (1) DE1645638A1 (en)
GB (1) GB1102369A (en)

Also Published As

Publication number Publication date
DE1645638A1 (en) 1970-10-22

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