JPS5379982A - Process for recovering atactic polypropylene - Google Patents

Process for recovering atactic polypropylene

Info

Publication number
JPS5379982A
JPS5379982A JP15505076A JP15505076A JPS5379982A JP S5379982 A JPS5379982 A JP S5379982A JP 15505076 A JP15505076 A JP 15505076A JP 15505076 A JP15505076 A JP 15505076A JP S5379982 A JPS5379982 A JP S5379982A
Authority
JP
Japan
Prior art keywords
atactic polypropylene
recovering
polypropylene
atactiv
gushed
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
Application number
JP15505076A
Other languages
Japanese (ja)
Other versions
JPS5914485B2 (en
Inventor
Tetsunosuke Shiomura
Takeo Ooka
Takashi Kobayashi
Hideo Sadotomo
Kazuo Hagiwara
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals 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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of JPS5379982A publication Critical patent/JPS5379982A/en
Publication of JPS5914485B2 publication Critical patent/JPS5914485B2/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00Post-polymerisation treatments
    • C08F6/06Treatment of polymer solutions
    • C08F6/12Separation of polymers from solutions

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)

Abstract

PURPOSE: A solution containing atactic polypropylene and polymerization solvent is passed through a double-pipe heater at a specified fluid speed and then gushed into a separation zone kept under low pressure, thereby atactiv polypropylene is easily recovered.
COPYRIGHT: (C)1978,JPO&Japio
JP15505076A 1978-06-22 1976-12-24 Recovery method of atactic polypropylene Expired JPS5914485B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7818744A FR2429230A1 (en) 1978-06-22 1978-06-22 Recovery of atactic polypropylene after propylene polymerisation - by passage of soln. through heated tube

Publications (2)

Publication Number Publication Date
JPS5379982A true JPS5379982A (en) 1978-07-14
JPS5914485B2 JPS5914485B2 (en) 1984-04-04

Family

ID=9209868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15505076A Expired JPS5914485B2 (en) 1978-06-22 1976-12-24 Recovery method of atactic polypropylene

Country Status (5)

Country Link
JP (1) JPS5914485B2 (en)
AT (1) AT355301B (en)
BE (1) BE868380A (en)
FR (1) FR2429230A1 (en)
NL (1) NL177921C (en)

Also Published As

Publication number Publication date
NL177921B (en) 1985-07-16
AT355301B (en) 1980-02-25
FR2429230B1 (en) 1985-02-15
NL7806230A (en) 1979-12-11
ATA454678A (en) 1979-07-15
NL177921C (en) 1985-12-16
BE868380A (en) 1978-10-16
JPS5914485B2 (en) 1984-04-04
FR2429230A1 (en) 1980-01-18

Similar Documents

Publication Publication Date Title
JPS5424643A (en) Method and apparatus for liquid developing
JPS5379982A (en) Process for recovering atactic polypropylene
BE847226A (en) METHOD AND DEVICE FOR THE PRODUCTION OF ETHYLENE FROM ETHANE,
JPS5236605A (en) Process for recovery of unreacted vinyl chloride
JPS5221297A (en) Recovering method of antimony pentachloride from used catalyst contain ing antimony
JPS5247579A (en) Continuous separation method of mixed liquid
ES461073A1 (en) Removing monomer from vinyl chloride polymer slurry
DE3274989D1 (en) Process for removing impurities from polyalkyleneoxy coloring agents
JPS5247572A (en) Method of recovering solvent vapor
JPS5241972A (en) Solid-liquid separation by filtration
JPS5232175A (en) Pneumatic filtration process and device therefor
JPS51141956A (en) Method for detecting a product of vaccum slide fastener
JPS524480A (en) Membrane separating process
JPS51128834A (en) Sludge treatment method
JPS541284A (en) Method of separating gas
JPS5238670A (en) Drying method and apparatus of p.v.a. collected from waste fluid
JPS51148684A (en) Process for removal of oxygen
JPS5219183A (en) Electrodialysis process
JPS52109604A (en) Centering method
JPS52129163A (en) Method of separating and withdrawing film bags
JPS5226658A (en) Slolid-liquid separating device
JPS52155854A (en) Process and apparatus for separating muddy water in muddy water excavation
JPS5359180A (en) Shifting controlling apparatus
JPS52102896A (en) Separative recovery of catalysts in alkylation
JPS528664A (en) Device for treating a waste fluid containing oil