CH473844A - Dispositif de régulation d'une unité de polymérisation de l'éthylène sous pression dans un réacteur tubulaire - Google Patents
Dispositif de régulation d'une unité de polymérisation de l'éthylène sous pression dans un réacteur tubulaireInfo
- Publication number
- CH473844A CH473844A CH661966A CH661966A CH473844A CH 473844 A CH473844 A CH 473844A CH 661966 A CH661966 A CH 661966A CH 661966 A CH661966 A CH 661966A CH 473844 A CH473844 A CH 473844A
- Authority
- CH
- Switzerland
- Prior art keywords
- counter
- expansion valve
- time
- valve
- opening
- Prior art date
Links
- 238000006116 polymerization reaction Methods 0.000 title claims description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims description 7
- 239000005977 Ethylene Substances 0.000 title claims description 7
- 230000001105 regulatory effect Effects 0.000 title claims description 5
- 230000005284 excitation Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 claims 1
- 239000000047 product Substances 0.000 description 8
- -1 for example Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- 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)
- Physical Or Chemical Processes And Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR16073A FR1449681A (fr) | 1965-05-06 | 1965-05-06 | Perfectionnement au procédé de polymérisation de l'éthylène sous haute pression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH473844A true CH473844A (fr) | 1969-06-15 |
Family
ID=8578157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH661966A CH473844A (fr) | 1965-05-06 | 1966-05-06 | Dispositif de régulation d'une unité de polymérisation de l'éthylène sous pression dans un réacteur tubulaire |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT270201B (en:Method) |
| CH (1) | CH473844A (en:Method) |
| ES (1) | ES326424A1 (en:Method) |
| FI (1) | FI46167C (en:Method) |
-
1966
- 1966-05-03 AT AT415966A patent/AT270201B/de active
- 1966-05-04 FI FI661173A patent/FI46167C/fi active
- 1966-05-06 CH CH661966A patent/CH473844A/fr not_active IP Right Cessation
- 1966-05-06 ES ES0326424A patent/ES326424A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES326424A1 (es) | 1967-03-01 |
| FI46167C (fi) | 1973-01-10 |
| FI46167B (en:Method) | 1972-10-02 |
| AT270201B (de) | 1969-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0042190B1 (fr) | Procédé pour la détermination de la nature moyenne du matériau constitutif du linge dans une machine à laver le linge et machine à laver pour la mise en oeuvre dudit procédé | |
| US5277065A (en) | Detector with ringdown frequency matching | |
| FR2501365A1 (fr) | Dispositif de correction d'un volume de gaz mesure | |
| EP1196346A1 (fr) | Procede de remplissage d'un recipient | |
| FR2694507A1 (fr) | Procédé de dosage d'un fluide ayant au moins deux constituants. | |
| FR2597598A1 (fr) | Dispositif de mesure de forces | |
| FR2628835A1 (en:Method) | ||
| FR2651296A1 (fr) | Commande de vanne. | |
| FR2632743A1 (fr) | Circuit de detection de temperature pour un dispositif de panification automatique et procede de commande pour un tel dispositif | |
| CH473844A (fr) | Dispositif de régulation d'une unité de polymérisation de l'éthylène sous pression dans un réacteur tubulaire | |
| FR2488080A1 (fr) | Dispositif de commande a modification de taux d'utilisation de signaux | |
| JPH07501138A (ja) | 時間ゲート超音波センサおよび測定方法 | |
| FR2461977A1 (fr) | Dispositif pour controler et regler le niveau d'eau dans la cuve d'une machine a laver le linge | |
| FR2488624A1 (fr) | Procede de reglage du niveau de l'eau dans une machine a laver le linge a tambour | |
| FR2647546A1 (fr) | Methode de controle de l'ultrafiltration du sang dans un rein artificiel et dispositif pour sa mise en oeuvr | |
| NO162897B (no) | Slipe- eller poleringstallerken. | |
| FR2924706A1 (fr) | Installation de distribution de carburant renfermant un dispsositif de recuperation de vapeurs ainsi que procede mis en oeuvre lors de l'utilisation de cette installation. | |
| FR2521970A1 (fr) | Procede de commande des dispositifs de remplissage d'une machine de remplissage de recipients, et circuit pour la mise en oeuvre de ce procede | |
| SU468095A1 (ru) | Автоматический дозатор жидкости | |
| EP1240482B1 (fr) | Procede et dispositif de conversion d'une grandeur physique mesure par un appareil de mesure | |
| WO2017068267A1 (fr) | Dispositif de contrôle de la consommation d'eau d'un distributeur d'eau | |
| EP0995100A1 (fr) | Procede pour determiner la masse volumique d'un gaz | |
| SU246419A1 (ru) | Способ автоматического регулирования процесса полимеризации | |
| EP0019572A1 (fr) | Procédé et dispositifs pour manutentionner des matériaux divisés | |
| FR2646937A1 (fr) | Procede et systeme de dosage automatique d'un additif dans un hydrocarbure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |