BE768827A - Procede de fabrication a haute pression de polyethylene ayant de bonnesperformances optiques - Google Patents

Procede de fabrication a haute pression de polyethylene ayant de bonnesperformances optiques

Info

Publication number
BE768827A
BE768827A BE768827A BE768827A BE768827A BE 768827 A BE768827 A BE 768827A BE 768827 A BE768827 A BE 768827A BE 768827 A BE768827 A BE 768827A BE 768827 A BE768827 A BE 768827A
Authority
BE
Belgium
Prior art keywords
polyethylene
high pressure
manufacturing process
optical performance
good optical
Prior art date
Application number
BE768827A
Other languages
English (en)
Original Assignee
Snam Progetti
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 Snam Progetti filed Critical Snam Progetti
Publication of BE768827A publication Critical patent/BE768827A/fr

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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • 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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00094—Jackets
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00105—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling
    • B01J2219/00108—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling involving reactant vapours

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
BE768827A 1970-06-23 1971-06-22 Procede de fabrication a haute pression de polyethylene ayant de bonnesperformances optiques BE768827A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2639370 1970-06-23

Publications (1)

Publication Number Publication Date
BE768827A true BE768827A (fr) 1971-11-03

Family

ID=11219388

Family Applications (1)

Application Number Title Priority Date Filing Date
BE768827A BE768827A (fr) 1970-06-23 1971-06-22 Procede de fabrication a haute pression de polyethylene ayant de bonnesperformances optiques

Country Status (12)

Country Link
BE (1) BE768827A (fr)
BG (1) BG25100A3 (fr)
CS (1) CS172353B2 (fr)
DE (1) DE2131145C3 (fr)
FR (1) FR2099267A5 (fr)
GB (1) GB1338280A (fr)
HU (1) HU164125B (fr)
LU (1) LU63396A1 (fr)
NL (1) NL165183C (fr)
PL (1) PL81822B1 (fr)
RO (1) RO61959A (fr)
SU (1) SU428611A3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2313399A1 (fr) * 1975-06-03 1976-12-31 Charbonnages Ste Chimique Procede de polymerisation et de copolymerisation de l'ethylene utilisant un dispositif d'injection de gaz
DE2946954C2 (de) * 1979-11-21 1984-03-15 EC Erdölchemie GmbH, 5000 Köln Verfahren zur Stabilisierung von Hochdruckpolyethylen
DE3844180A1 (de) * 1988-12-29 1990-07-05 Hoechst Ag Verfahren zur abtrennung fluechtiger bestandteile aus durch hochdruckpolymerisation erhaltenen reaktionsgemischen
EP0447177B1 (fr) 1990-03-16 1996-07-03 Mobil Oil Corporation Procédé de préparation de copolymères d'éthylène linéaire de basse densité
US5521010A (en) * 1994-03-25 1996-05-28 The Furukawa Electric Co., Ltd. Polyethylene for an insulation layer of a power cable and a crosslinked polyethylene insulated power cable using the same
WO2007018871A1 (fr) * 2005-08-05 2007-02-15 Exxonmobil Chemical Patents Inc. Procede et appareil de fabrication de polymeres et copolymeres d'ethylene
GB0522706D0 (en) * 2005-11-07 2005-12-14 Exxonmobil Chem Patents Inc An apparatus and method for the production of polyethylene and ethylene compolyers
GB0609973D0 (en) 2006-05-19 2006-06-28 Exxonmobil Chem Patents Inc An apparatus for the production of polyethylene and ethylene copolymers
WO2010071653A1 (fr) * 2008-12-18 2010-06-24 Exxonmobil Chemical Patents Inc. Procédé de polymérisation à haute pression
US20120240960A1 (en) 2009-12-22 2012-09-27 Philip Henri Cornelissen Separation Vessels For Use In Polymerization Processes And Methods For Cleaning Same
RU2682328C1 (ru) * 2015-11-18 2019-03-19 Базелл Полиолефин Гмбх Процесс полимеризации со стадией частичного отключения
KR102007502B1 (ko) 2016-09-19 2019-08-05 주식회사 엘지화학 에틸렌 및 비닐계 공단량체의 회수 방법
CN111100233B (zh) * 2018-10-25 2023-07-25 中国石油化工股份有限公司 一种用于重包装膜的高压聚乙烯的合成方法
CN111808220A (zh) * 2020-07-06 2020-10-23 天津全和诚科技有限责任公司 一种聚乙烯功能新材料的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306889A (en) * 1963-05-15 1967-02-28 Koppers Co Inc Ethylene polymerization
US3372154A (en) * 1965-04-09 1968-03-05 Union Carbide Corp Ethylene polymer powders and process therefor
US3509115A (en) * 1968-12-11 1970-04-28 Nat Distillers Chem Corp Process of preparing ethylene-vinyl acetate copolymers

Also Published As

Publication number Publication date
CS172353B2 (fr) 1976-12-29
SU428611A3 (ru) 1974-05-15
HU164125B (fr) 1973-12-28
DE2131145B2 (de) 1973-07-26
GB1338280A (en) 1973-11-21
BG25100A3 (en) 1978-07-12
DE2131145C3 (de) 1982-01-14
RO61959A (fr) 1977-11-15
LU63396A1 (fr) 1971-09-22
DE2131145A1 (de) 1971-12-30
PL81822B1 (fr) 1975-10-31
FR2099267A5 (fr) 1972-03-10
NL165183B (nl) 1980-10-15
NL7108630A (fr) 1971-12-27
NL165183C (nl) 1981-03-16

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SNAM PROGETTI S.P.A.

Effective date: 19850622