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)
  • Coke Industry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (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 (enrdf_load_stackoverflow)
AU (1) AU8403375A (enrdf_load_stackoverflow)
BE (1) BE832539A (enrdf_load_stackoverflow)
BR (1) BR7505278A (enrdf_load_stackoverflow)
CA (1) CA1055531A (enrdf_load_stackoverflow)
DE (1) DE2536808A1 (enrdf_load_stackoverflow)
FR (1) FR2282415A1 (enrdf_load_stackoverflow)
GB (1) GB1489662A (enrdf_load_stackoverflow)
IT (1) IT1041857B (enrdf_load_stackoverflow)
NL (1) NL7509844A (enrdf_load_stackoverflow)
SE (1) SE401172B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050643U (enrdf_load_stackoverflow) * 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
JPS5143701A (enrdf_load_stackoverflow) 1976-04-14
AU8403375A (en) 1977-02-24
BR7505278A (pt) 1976-08-03
NL7509844A (nl) 1976-02-24
FR2282415A1 (fr) 1976-03-19
GB1489662A (en) 1977-10-26
DE2536808A1 (de) 1976-03-04
CA1055531A (en) 1979-05-29
BE832539A (fr) 1976-02-19
IT1041857B (it) 1980-01-10
SE7509269L (sv) 1976-02-23
JPS56411B2 (enrdf_load_stackoverflow) 1981-01-08

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