SE401172B - Forfarande for krackning av polyeten eller polypropen till monomer genom inblandning av en krackningsgas av sadan temperatur att polymeren upphettas till 800 a 1050Ÿc under en uppehallstid av 10 a 100 millisekunder - Google Patents

Forfarande for krackning av polyeten eller polypropen till monomer genom inblandning av en krackningsgas av sadan temperatur att polymeren upphettas till 800 a 1050Ÿc under en uppehallstid av 10 a 100 millisekunder

Info

Publication number
SE401172B
SE401172B SE7509269A SE7509269A SE401172B SE 401172 B SE401172 B SE 401172B SE 7509269 A SE7509269 A SE 7509269A SE 7509269 A SE7509269 A SE 7509269A SE 401172 B SE401172 B SE 401172B
Authority
SE
Sweden
Prior art keywords
cracking
monomes
polyet
polypropene
milliseconds
Prior art date
Application number
SE7509269A
Other languages
English (en)
Swedish (sv)
Other versions
SE7509269L (sv
Inventor
C W Albright
Ii G E Keller
Original Assignee
Union Carbide Corp
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
Priority claimed from US05/498,990 external-priority patent/US3985820A/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of SE7509269L publication Critical patent/SE7509269L/xx
Publication of SE401172B publication Critical patent/SE401172B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/22—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene
    • 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
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00058—Temperature measurement
    • 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
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00065—Pressure measurement
    • 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
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00069—Flow rate measurement
    • 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
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00072—Mathematical modelling
    • 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
    • B01J2219/00157—Controlling the temperature by means of a burner
    • 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
    • B01J2219/00168—Controlling or regulating processes controlling the viscosity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Coke Industry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
SE7509269A 1974-08-20 1975-08-19 Forfarande for krackning av polyeten eller polypropen till monomer genom inblandning av en krackningsgas av sadan temperatur att polymeren upphettas till 800 a 1050Ÿc under en uppehallstid av 10 a 100 millisekunder SE401172B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/498,990 US3985820A (en) 1973-05-14 1974-08-20 Cracking process

Publications (2)

Publication Number Publication Date
SE7509269L SE7509269L (sv) 1976-02-23
SE401172B true SE401172B (sv) 1978-04-24

Family

ID=23983340

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7509269A SE401172B (sv) 1974-08-20 1975-08-19 Forfarande for krackning av polyeten eller polypropen till monomer genom inblandning av en krackningsgas av sadan temperatur att polymeren upphettas till 800 a 1050Ÿc under en uppehallstid av 10 a 100 millisekunder

Country Status (11)

Country Link
JP (1) JPS56411B2 (xx)
AU (1) AU8403375A (xx)
BE (1) BE832539A (xx)
BR (1) BR7505278A (xx)
CA (1) CA1055531A (xx)
DE (1) DE2536808A1 (xx)
FR (1) FR2282415A1 (xx)
GB (1) GB1489662A (xx)
IT (1) IT1041857B (xx)
NL (1) NL7509844A (xx)
SE (1) SE401172B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050643U (xx) * 1973-09-06 1975-05-17
US5481052A (en) * 1992-04-22 1996-01-02 Bp Chemicals Limited Polymer cracking

Also Published As

Publication number Publication date
SE7509269L (sv) 1976-02-23
DE2536808A1 (de) 1976-03-04
AU8403375A (en) 1977-02-24
JPS56411B2 (xx) 1981-01-08
FR2282415A1 (fr) 1976-03-19
IT1041857B (it) 1980-01-10
BR7505278A (pt) 1976-08-03
JPS5143701A (xx) 1976-04-14
CA1055531A (en) 1979-05-29
NL7509844A (nl) 1976-02-24
GB1489662A (en) 1977-10-26
BE832539A (fr) 1976-02-19

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