FR2361429A1 - Procede de production de polyethylene haute pression, utilisant deux ou plusieurs reacteurs autoclaves comprenant deux zones de reaction, relies en serie - Google Patents
Procede de production de polyethylene haute pression, utilisant deux ou plusieurs reacteurs autoclaves comprenant deux zones de reaction, relies en serieInfo
- Publication number
- FR2361429A1 FR2361429A1 FR7724876A FR7724876A FR2361429A1 FR 2361429 A1 FR2361429 A1 FR 2361429A1 FR 7724876 A FR7724876 A FR 7724876A FR 7724876 A FR7724876 A FR 7724876A FR 2361429 A1 FR2361429 A1 FR 2361429A1
- Authority
- FR
- France
- Prior art keywords
- series
- high pressure
- reaction zone
- autoclaval
- linked
- 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.)
- Granted
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
- B01J19/245—Stationary reactors without moving elements inside placed in series
-
- 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
- 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
- B01J2219/00103—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor in a heat exchanger separate from the reactor
-
- 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
- B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
-
- 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
- B01J2219/00162—Controlling or regulating processes controlling the pressure
-
- 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
- B01J2219/00164—Controlling or regulating processes controlling the flow
- B01J2219/00166—Controlling or regulating processes controlling the flow controlling the residence time inside the reactor vessel
-
- 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
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
L'invention concerne un procédé de polymérisation sous pression élevée de l'éthylène. Dans un mode de réalisation, on utilise au moins deux réacteurs autoclaves 1 et 2 reliés en série par une conduite comportant un échangeur de chaleur 10. Une proportion substantielle de l'éthylène est introduite dans la zone de réaction supérieure 3 du réacteur 1 où il est polymérisé en présence d'un agent d'amorçage approprié. Le produit de réaction passe ensuite dans la zone de reaction inférieure 4 puis dans l'échangeur de chaleur 10 où il est refroidi avant d'être introduit dans la zone de réaction inférieure 6 du réacteur 2. La portion restante de la charge d'éthylène est introduite dans la zone de réaction supérieure du réacteur 2. On obtient en utilisant un tel dispositif un meilleur rendement en polyéthylène ayant de meilleures propriétés optiques et une meilleure aptitude à la mise en oeuvre.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9716276A JPS5322582A (en) | 1976-08-13 | 1976-08-13 | Production of polyethylene |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2361429A1 true FR2361429A1 (fr) | 1978-03-10 |
FR2361429B1 FR2361429B1 (fr) | 1981-11-06 |
Family
ID=14184864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7724876A Granted FR2361429A1 (fr) | 1976-08-13 | 1977-08-12 | Procede de production de polyethylene haute pression, utilisant deux ou plusieurs reacteurs autoclaves comprenant deux zones de reaction, relies en serie |
Country Status (11)
Country | Link |
---|---|
US (1) | US4123600A (fr) |
JP (1) | JPS5322582A (fr) |
BR (1) | BR7705320A (fr) |
CA (1) | CA1074499A (fr) |
DE (1) | DE2736477C3 (fr) |
FR (1) | FR2361429A1 (fr) |
GB (1) | GB1544032A (fr) |
HU (1) | HU179795B (fr) |
MX (1) | MX4776E (fr) |
NL (1) | NL184736C (fr) |
SU (1) | SU738514A3 (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2814650C2 (de) * | 1978-04-05 | 1984-02-02 | EC Erdölchemie GmbH, 5000 Köln | Herstellung von Homo-oder Copolymeren des Äthylens nach dem Hochdruckverfahren in Rührautoklaven mit praktisch vollständiger Rückvermischung |
US4282339A (en) * | 1978-10-02 | 1981-08-04 | National Distillers And Chemical Corp. | Dual reactor process and apparatus for polymerizing ethylene |
US4229416A (en) * | 1978-10-02 | 1980-10-21 | National Distillers And Chemical Corporation | Dual reactor apparatus for polymerizing ethylene |
JPS5938961B2 (ja) * | 1978-12-26 | 1984-09-20 | 住友化学工業株式会社 | ポリエチレンの改良された製造法 |
US4607086A (en) * | 1979-04-05 | 1986-08-19 | E. I. Du Pont De Nemours And Company | Continuous process for the manufacture of low-density polyethylene in stirred autoclaves |
JPS5996108A (ja) * | 1982-11-25 | 1984-06-02 | Showa Denko Kk | 高圧ポリエチレンの製造方法 |
US4979987A (en) * | 1988-07-19 | 1990-12-25 | First Miss Gold, Inc. | Precious metals recovery from refractory carbonate ores |
DE69826103T3 (de) | 1998-01-12 | 2012-07-12 | Dow Global Technologies Inc. | Äthylenpolymere mittlerer Dichte, Verfahren zur Herstellung dieser Polymere und Verwendung von Carbonyl-haltigen Kettenübertragungsmitteln in diesem Verfahren |
US6407191B1 (en) * | 1998-01-12 | 2002-06-18 | The Dow Chemical Company | Medium density ethylene polymers, a process to prepare these polymers and use of carbonyl group containing chain transfer agents in this process |
US7604783B2 (en) | 2004-12-22 | 2009-10-20 | Placer Dome Technical Services Limited | Reduction of lime consumption when treating refractor gold ores or concentrates |
US8061888B2 (en) | 2006-03-17 | 2011-11-22 | Barrick Gold Corporation | Autoclave with underflow dividers |
US8252254B2 (en) | 2006-06-15 | 2012-08-28 | Barrick Gold Corporation | Process for reduced alkali consumption in the recovery of silver |
EP2239283B1 (fr) * | 2009-11-10 | 2012-01-25 | Basell Polyolefine GmbH | LDPE haute pression pour applications médicales |
BR112013007510B1 (pt) * | 2010-09-30 | 2020-10-20 | Dow Global Technologies Llc | processo de polimerização em alta pressão para formar um polímero a base de etileno, polímero a base de etileno, composição e artigo |
US8653207B1 (en) | 2012-11-30 | 2014-02-18 | Westlake Longview Corporation | Process and apparatus for polymerizing ethylene under ultra-high pressure |
CN110891986B (zh) * | 2017-11-03 | 2023-07-18 | Lg化学株式会社 | 乙烯-乙酸乙烯酯共聚物的制备方法 |
KR102309428B1 (ko) | 2018-11-26 | 2021-10-05 | 주식회사 엘지화학 | 에틸렌 비닐아세테이트 공중합체 및 그 제조방법 |
JP2022156612A (ja) | 2021-03-31 | 2022-10-14 | 住友化学株式会社 | ポリエチレンの製造方法 |
WO2023159034A1 (fr) | 2022-02-21 | 2023-08-24 | Chevron Phillips Chemical Company Lp | Système multi-réacteurs et méthode de production de copolymères de polyéthylène et d'éthylène |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3178404A (en) * | 1959-12-23 | 1965-04-13 | Eastman Kodak Co | Preparation of polyethylene in a two zone reactor employing caprylyl peroxide in the first zone as the catalyst |
SE325130B (fr) * | 1963-11-05 | 1970-06-22 | Monsanto Co | |
BE662436A (fr) * | 1964-04-14 | 1965-08-02 | ||
US3756996A (en) * | 1964-10-02 | 1973-09-04 | Nat Distillers Chem Corp | Process for the production of ethylene polymers |
GB1071305A (en) * | 1965-02-03 | 1967-06-07 | Nat Distillers Chem Corp | Polymerization process |
US3536693A (en) * | 1968-01-31 | 1970-10-27 | Eastman Kodak Co | Process for preparing polyethylene having improved properties |
GB1208120A (en) | 1968-02-01 | 1970-10-07 | Ici Ltd | Ethylene polymerisation |
US3575950A (en) * | 1968-09-26 | 1971-04-20 | Eastman Kodak Co | Process for preparing polyethylene having improved film forming properties |
DE2131445A1 (de) * | 1970-06-24 | 1972-02-03 | Mitsubishi Petrochemical Co | Verfahren zur Herstellung von Hochdruckpolyaethylen |
GB1419012A (en) * | 1973-03-29 | 1975-12-24 | Ici Ltd | Production of polyethylene |
DE2322554A1 (de) * | 1973-05-04 | 1974-11-21 | Sumitomo Chemical Co | Verfahren und vorrichtung zur herstellung von aethylen-polymerisaten |
JPS532585A (en) * | 1976-06-29 | 1978-01-11 | Sumitomo Chem Co Ltd | Preparation of polyethylene |
-
1976
- 1976-08-13 JP JP9716276A patent/JPS5322582A/ja active Granted
-
1977
- 1977-08-04 US US05/821,920 patent/US4123600A/en not_active Expired - Lifetime
- 1977-08-10 NL NLAANVRAGE7708835,A patent/NL184736C/xx not_active IP Right Cessation
- 1977-08-11 BR BR7705320A patent/BR7705320A/pt unknown
- 1977-08-12 MX MX776022U patent/MX4776E/es unknown
- 1977-08-12 DE DE2736477A patent/DE2736477C3/de not_active Expired - Lifetime
- 1977-08-12 CA CA284,608A patent/CA1074499A/fr not_active Expired
- 1977-08-12 HU HU77SU953A patent/HU179795B/hu unknown
- 1977-08-12 FR FR7724876A patent/FR2361429A1/fr active Granted
- 1977-08-12 SU SU772512754A patent/SU738514A3/ru active
- 1977-08-15 GB GB34227/77A patent/GB1544032A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5322582A (en) | 1978-03-02 |
HU179795B (en) | 1982-12-28 |
GB1544032A (en) | 1979-04-11 |
DE2736477C2 (fr) | 1988-02-18 |
DE2736477C3 (de) | 1995-07-13 |
NL7708835A (nl) | 1978-02-15 |
JPS5415905B2 (fr) | 1979-06-18 |
FR2361429B1 (fr) | 1981-11-06 |
CA1074499A (fr) | 1980-03-25 |
DE2736477A1 (de) | 1978-02-16 |
NL184736B (nl) | 1989-05-16 |
SU738514A3 (ru) | 1980-05-30 |
BR7705320A (pt) | 1978-04-04 |
MX4776E (es) | 1982-09-10 |
US4123600A (en) | 1978-10-31 |
NL184736C (nl) | 1989-10-16 |
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