JPS5710608A - Preparation of olefin polymer or copolymer using plural reactors - Google Patents

Preparation of olefin polymer or copolymer using plural reactors

Info

Publication number
JPS5710608A
JPS5710608A JP8563880A JP8563880A JPS5710608A JP S5710608 A JPS5710608 A JP S5710608A JP 8563880 A JP8563880 A JP 8563880A JP 8563880 A JP8563880 A JP 8563880A JP S5710608 A JPS5710608 A JP S5710608A
Authority
JP
Japan
Prior art keywords
olefin
stage
reactor
polymer
copolymer
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
JP8563880A
Other languages
Japanese (ja)
Inventor
Seiji Suzuki
Kentaro Mashita
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP8563880A priority Critical patent/JPS5710608A/en
Publication of JPS5710608A publication Critical patent/JPS5710608A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prepare a polymer having broad molecular weight distribution and giving a film with little fish-eye, by the multi-stage polymerization of an olefin in the presence of a specific Ziegler catalyst using a plurarity of reactors.
CONSTITUTION: An olefin monomer (e.g. ethylene) is polymerized in the first-stage tubular reactor 1 (pref. the inner diameter is 0.004W0.5m and the length of the tube is 50W3,000m) at 30W120°C using a Ziegler catalyst capable of producing 5,000W 1,000,000g/g-catalyst.hour of olefin polymer or copolymer, while precipitating the produced olefin (co)polymer continuously from the reaction liquid and keeping the flow velocity of the slurry in the tube at 2W20m/sec. The polyolefin obtained from the first-stage reactor is further polymerized in the second-stage stirred tank reactor 2 at about 50W300°C controlling the hydrogen concentration in the gaseous phase of the upper part of the reactor.
COPYRIGHT: (C)1982,JPO&Japio
JP8563880A 1980-06-23 1980-06-23 Preparation of olefin polymer or copolymer using plural reactors Pending JPS5710608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8563880A JPS5710608A (en) 1980-06-23 1980-06-23 Preparation of olefin polymer or copolymer using plural reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8563880A JPS5710608A (en) 1980-06-23 1980-06-23 Preparation of olefin polymer or copolymer using plural reactors

Publications (1)

Publication Number Publication Date
JPS5710608A true JPS5710608A (en) 1982-01-20

Family

ID=13864365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8563880A Pending JPS5710608A (en) 1980-06-23 1980-06-23 Preparation of olefin polymer or copolymer using plural reactors

Country Status (1)

Country Link
JP (1) JPS5710608A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI770627B (en) * 2019-10-04 2022-07-11 印度商蒂魯瑪萊化工有限公司 Production of malic acid using tubular and stirred tank reactors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI770627B (en) * 2019-10-04 2022-07-11 印度商蒂魯瑪萊化工有限公司 Production of malic acid using tubular and stirred tank reactors
US11597693B2 (en) 2019-10-04 2023-03-07 Thirumalai Chemicals Limited Production of malic acid using tubular and stirred tank reactors

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