NL7110020A - Ethylene polymer prepn - in which water is mixed with decomposition gases to prevent ignition - Google Patents

Ethylene polymer prepn - in which water is mixed with decomposition gases to prevent ignition

Info

Publication number
NL7110020A
NL7110020A NL7110020A NL7110020A NL7110020A NL 7110020 A NL7110020 A NL 7110020A NL 7110020 A NL7110020 A NL 7110020A NL 7110020 A NL7110020 A NL 7110020A NL 7110020 A NL7110020 A NL 7110020A
Authority
NL
Netherlands
Prior art keywords
decomposition gases
water
valve
mixed
ethylene polymer
Prior art date
Application number
NL7110020A
Other versions
NL162667C (en
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 filed Critical
Priority to NL7110020A priority Critical patent/NL162667C/en
Priority to GB5463471A priority patent/GB1313458A/en
Priority to DE2158568A priority patent/DE2158568C2/en
Priority to CA128,527A priority patent/CA985450A/en
Priority to IT54385/71A priority patent/IT945181B/en
Priority to BE775878A priority patent/BE775878A/en
Priority to JP9507671A priority patent/JPS5510602B1/ja
Priority to US00202873A priority patent/US3781256A/en
Priority to CS8305A priority patent/CS174170B2/cs
Priority to FR7142693A priority patent/FR2116147A5/fr
Publication of NL7110020A publication Critical patent/NL7110020A/en
Application granted granted Critical
Publication of NL162667C publication Critical patent/NL162667C/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • 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
    • B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
    • 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)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

(Co)polymerisation of ethylene is carried out in an autoclave (1) connected to an exhaust duct (7) via a pressure operated valve (5). When the pressure in the autoclave reaches a predetermined valve the valve (5) opens allowing the decomposition gases to escape into the exhaust duct, and in a 10 second period after the valve has opened, at least 0.3 (pref. 0.8) k gm of water/k gm of contents in the autoclave is released into the exhaust duct. (7). The water evaporates rapidly thereby cooling the decomposition gases and lowering the temperature below a value at which spontaneous combustion might occur. Fire risk due to spontaneous combustion of the decomposition gases is eliminated.
NL7110020A 1970-11-27 1971-07-21 Apparatus for preparing homo or copolymers of ethylene. NL162667C (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL7110020A NL162667C (en) 1971-07-21 1971-07-21 Apparatus for preparing homo or copolymers of ethylene.
GB5463471A GB1313458A (en) 1970-11-27 1971-11-24 Process and installation for the preparation of homo- or copolymers of ethylene
CA128,527A CA985450A (en) 1970-11-27 1971-11-25 Process and installation for the preparation of homo- or co-polymers of ethylene
DE2158568A DE2158568C2 (en) 1970-11-27 1971-11-25 Process and device for the production of homo- or copolymers of ethylene
IT54385/71A IT945181B (en) 1970-11-27 1971-11-26 PROCESS AND PLANT FOR THE PRODUCTION OF ETHYLENE HOMOPOLYMERS OR COPO LIMERS
BE775878A BE775878A (en) 1970-11-27 1971-11-26 METHOD AND DEVICE FOR THE PREPARATION OF HOMO-OR COPOLYMERS OF ETHYLENE
JP9507671A JPS5510602B1 (en) 1970-11-27 1971-11-26
US00202873A US3781256A (en) 1970-11-27 1971-11-29 Process and installation for the preparation of homo-or copolymers of ethylene
CS8305A CS174170B2 (en) 1970-11-27 1971-11-29
FR7142693A FR2116147A5 (en) 1970-11-27 1971-11-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7110020A NL162667C (en) 1971-07-21 1971-07-21 Apparatus for preparing homo or copolymers of ethylene.

Publications (2)

Publication Number Publication Date
NL7110020A true NL7110020A (en) 1973-01-23
NL162667C NL162667C (en) 1980-06-16

Family

ID=19813658

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7110020A NL162667C (en) 1970-11-27 1971-07-21 Apparatus for preparing homo or copolymers of ethylene.

Country Status (1)

Country Link
NL (1) NL162667C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352578A1 (en) * 1976-05-29 1977-12-23 Stamicarbon PROTECTION PLANT FOR REACTORS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352578A1 (en) * 1976-05-29 1977-12-23 Stamicarbon PROTECTION PLANT FOR REACTORS

Also Published As

Publication number Publication date
NL162667C (en) 1980-06-16

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Legal Events

Date Code Title Description
SNR Assignments of patents or rights arising from examined patent applications
V1 Lapsed because of non-payment of the annual fee