DE1520777A1 - Process for the polymerization of ethylene under high pressure - Google Patents

Process for the polymerization of ethylene under high pressure

Info

Publication number
DE1520777A1
DE1520777A1 DE19621520777 DE1520777A DE1520777A1 DE 1520777 A1 DE1520777 A1 DE 1520777A1 DE 19621520777 DE19621520777 DE 19621520777 DE 1520777 A DE1520777 A DE 1520777A DE 1520777 A1 DE1520777 A1 DE 1520777A1
Authority
DE
Germany
Prior art keywords
pulse
reaction
pressure
time
reaction vessel
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.)
Pending
Application number
DE19621520777
Other languages
German (de)
Inventor
Davis Robert S
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.)
Halcon International Inc
Original Assignee
Halcon International Inc
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 Halcon International Inc filed Critical Halcon International Inc
Publication of DE1520777A1 publication Critical patent/DE1520777A1/en
Pending 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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymerisation Methods In General (AREA)

Claims (8)

Pa tent an s ρ r ü c h ePatent to s ρ r ü c h e ΛΛ Verfahren zur Polymerisation von Äthylen unter hohem Druck in einem langgestreckten Reaktionsgefäß, worin das Reaktionsgeinisch wenigstens einmal alle 2 Minuten wiederkehrenden Strömungsimpulsen unterworfen wird in der Weise, daß jedem Impuls eine Erhöhung der linearen Geschwindigkeit des Gemischs durch das Reaktionsgefäß auf wenigstens das Doppelte folgt, dadurch gekennzeichnet, daß man die Zeit zwischen den Impulsen entsprechend dem dem Verlegungsgrad entsprechenden Faktor des vorhergehenden Impulses so einstellt, daß, wenn dieser faktor für den vorhergehenden Impuls geringer ist als der für den davorliegenden Impuls, die Zeit bis zum nächsten Impuls verlängert wird, und umgekehr ΛΛ A process for the polymerization of ethylene under high pressure in an elongated reaction vessel, in which the reaction mixture is subjected to repetitive flow pulses at least once every 2 minutes in such a way that each pulse is followed by an increase in the linear velocity of the mixture through the reaction vessel to at least double, thereby characterized in that the time between the pulses is set according to the factor of the previous pulse corresponding to the degree of displacement so that if this factor for the previous pulse is less than that for the previous pulse, the time to the next pulse is lengthened, and vice versa 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man den Strömungsimpuls durch weites Öffnen des Auslaßendes des Reaktionsgefäßes gegen einen Bereich niedrigen Drucks erzielt und die Zeit bis zum nächsten Impuls entsprechend dem Integral der Einlaßdruck-Zeit-Funktion beim vorhergehenden Impuls einstellt.2. The method according to claim 1, characterized in that that the flow impulse by wide opening of the outlet end of the reaction vessel against a region of low pressure and the time to the next pulse accordingly the integral of the inlet pressure-time function previous impulse. Vom Dsutir.hen Patentamt ohne jede
Gewähr \. : W. > V ". - -t von
UiiUri-r; >, · - ■ . U ■ ;- .: .dien
Wiedergabe π>ύ.ι g.\,.,-.. "t s'-.-id,From the Dsutir.hen patent office without any
Guarantee \. : W. > V ". - -t of
UiiUri-r; >, · - ■. U ■ ; -.: .Dien
Playback π> ύ.ι g. \,., - .. "t s' -.- id, v 009826/1947 BADv 009826/1947 BAD 3# Verfahren naöh Anspruch 2, dadurch gekennzeicnaet, daß man einen Druckabfall von 5 bis 25 # des Reaktionsdrucks anwendet. 3 # method according to claim 2, characterized thereby, that one uses a pressure drop of 5 to 25 # of the reaction pressure. 4. Verfahren nach Anspruch 3» dadurch gekennzeichnet, daß man einen Reaktionsdruck von wenigstens 1400 atü (20 000 psig) anwendet.4. The method according to claim 3 »characterized in that that a reaction pressure of at least 1400 atmospheres (20,000 psig) is used. 5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß man eine Reaktionstemperatur im Bereich von 2000G bis kurz vor der Temperatur anwendet j wobei sich das Reaktionsgemisch explosiv zersetzt.5. The method according to claim 4, characterized in that a reaction temperature in the range from 200 0 G to just before the temperature is applied j wherein the reaction mixture decomposes explosively. 6. Verfahren nach Anspruch 5» dadurch gekennzeichnet, daß man weniger als 200 Teile/Million Sauerstoff als Katalysator im Reaktionsgemisch verwendet.6. The method according to claim 5 »characterized in that that less than 200 parts / million oxygen is used as a catalyst in the reaction mixture. 7. Verfahren nach Anspruch 6, dadurch gekennzeichnet,7. The method according to claim 6, characterized in that 11—1 daß man eine Impulsfrequenz von j- biSgw see anwendet·11-1 that a pulse frequency of j- bisgw see is used 8. Abänderung des Verfahrens nach Anspruch 2, dadurch ge- > kennzeichnet, daß man die Zeit bis zum nächsten Impuls entsprechend dem Druckabfall innerhalb des Reaktionsgefäßes einstellt. 8. Modification of the method according to claim 2, characterized in that> indicates that the time until the next pulse is set according to the pressure drop within the reaction vessel. Vom Ti-r-·Ir :·βη Ta'an^üit ->hne jede
Gcvr'i' - . -■ ■ ■' = '' '. '?; vonFrom the Ti-r- Ir : βη Ta'an ^ üit -> hne each
Gcvr'i '-. - ■ ■ ■ '='''.'?; from i,.,-..... :.X009826/"1.9 47 ''i,., -.....: .X009826 / "1.9 47 ''
DE19621520777 1961-08-11 1962-08-11 Process for the polymerization of ethylene under high pressure Pending DE1520777A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13081161A 1961-08-11 1961-08-11

Publications (1)

Publication Number Publication Date
DE1520777A1 true DE1520777A1 (en) 1970-06-25

Family

ID=22446453

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19621520777 Pending DE1520777A1 (en) 1961-08-11 1962-08-11 Process for the polymerization of ethylene under high pressure

Country Status (7)

Country Link
BE (1) BE620878A (en)
CH (1) CH414170A (en)
DE (1) DE1520777A1 (en)
ES (1) ES279997A1 (en)
GB (1) GB1000308A (en)
LU (1) LU42168A1 (en)
NL (1) NL281956A (en)

Also Published As

Publication number Publication date
ES279997A1 (en) 1963-01-16
NL281956A (en)
BE620878A (en)
CH414170A (en) 1966-05-31
GB1000308A (en) 1965-08-04
LU42168A1 (en) 1964-02-03

Similar Documents

Publication Publication Date Title
DE2237373C3 (en) Process for the production of predominantly straight-chain aldehydes
DE2149670A1 (en) Process for the production of acrylonitrile
DE1520777A1 (en) Process for the polymerization of ethylene under high pressure
GB1128090A (en) Process for producing crystalline polyolefins
CH453316A (en) Process for the production of hydroxylamine by catalytic hydrogenation of nitrogen oxide and apparatus for carrying out this process
EP0226942A3 (en) Process for the production of unsaturated aliphatic carboxylic acid anhydrides
DE2713577C2 (en) Process for the preparation of homo- and copolymers of C? 2? - to C? 6? -? -Monoolefins
DE1020183B (en) Process for polymerizing unsaturated polyesters
DE849843C (en) Process for the production of highly stable emulsions
CH243960A (en) Process for the production of vinyl esters.
DE965240C (en) Process for the preparation of bicyclic methane derivatives
DE1919919C3 (en) Process for the production of a copolymer from maleic anhydride and a sterically unhindered conjugated diene
DE959589C (en) Accelerator for cold-curing, benzoyl peroxide-catalyzed casting resin mixtures made from unsaturated polyesters and monomeric polymerizable compounds
DE1004380B (en) Process for the polymerization of olefinic compounds
DE717951C (en) Process for the production of acetaldehyde from gases containing acetylene
DE2328605A1 (en) RDUCTION OF ZEARALENON
DE1198067B (en) Process for the polymerization of olefinically unsaturated compounds
DE1942302A1 (en) Caprolactam prepn from cyclohexane and - nitric oxide
DE1268625B (en) Stabilization of diketene against polymerization
DE1720390A1 (en) Process for the production of polymers
CH415607A (en) Process for the production of octafluorocyclobutane
DE1229071B (en) Process for the production of vinyl ethyl sulfone
DE865898C (en) Device for the production of aldehydes
DE340987C (en) Process for the extraction of argon
DE1620941A1 (en) Process for the production of polyethylene

Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971