BG33298A3 - Method for fighting the settling of homo- and copolymers of vinylchloride - Google Patents

Method for fighting the settling of homo- and copolymers of vinylchloride

Info

Publication number
BG33298A3
BG33298A3 BG033920A BG3392076A BG33298A3 BG 33298 A3 BG33298 A3 BG 33298A3 BG 033920 A BG033920 A BG 033920A BG 3392076 A BG3392076 A BG 3392076A BG 33298 A3 BG33298 A3 BG 33298A3
Authority
BG
Bulgaria
Prior art keywords
percent
washing
vinylchloride
fighting
homo
Prior art date
Application number
BG033920A
Other languages
Bulgarian (bg)
Inventor
Dionigi Baldini
Francesco Carlin
Giancarlo Montanari
Enzo Bandini
Original Assignee
Неизвестен
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 Неизвестен filed Critical Неизвестен
Publication of BG33298A3 publication Critical patent/BG33298A3/en

Links

Classifications

    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0073—Sealings
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0066—Stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • 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
    • C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F14/02—Monomers containing chlorine
    • C08F14/04—Monomers containing two carbon atoms
    • C08F14/06—Vinyl chloride
    • 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
    • B01J2219/00162—Controlling or regulating processes controlling the pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Метод за борба с налепообразуванията от хомои съполимери на винилхлорид чрез промиване на реак ционната маса с вода по време на суспензионната полимеризация и евентуално допълнително механично почистване на реактора с водна струя след завършване на реакцията, характеризиращ се с това, че промиването на реакционната маса започва при степен на превръщане на мономера от 15 до 20 процента и завършва при достигане степен на превръщане от 40 до 65 процента като се провежда с вода под налягане от 10 до 100 кg/см2 и дебит над 1000 л/час, а допълнителното механично почистване се осъществява с водна струя под налягане от 100 до 300 кг/ см2. Патентните претенции са формулирани в 1 точкаA method for combating scale formations from homocopolymers of vinyl chloride by washing the reaction mass with water during the suspension polymerization and possibly additional mechanical cleaning of the reactor with a water jet after completion of the reaction, characterized in that the washing of the reaction mass starts at a monomer conversion rate of 15 to 20 percent and ends when a conversion rate of 40 to 65 percent is reached, being carried out with water under a pressure of 10 to 100 kg/cm2 and a flow rate of more than 1000 l/hour, and the additional mechanical cleaning is carried out with a water jet under pressure from 100 to 300 kg/cm2. The patent claims are formulated in 1 point

BG033920A 1975-08-08 1976-08-04 Method for fighting the settling of homo- and copolymers of vinylchloride BG33298A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT26219/75A IT1044367B (en) 1975-08-08 1975-08-08 PROCEDURE FOR THE REMOVAL OF STAINS FROM PARTS IN CONTACT WITH THE GASEOUS PHASE IN SUSPENSION VINYL CHLORIDE POLYMERIZERS

Publications (1)

Publication Number Publication Date
BG33298A3 true BG33298A3 (en) 1983-01-14

Family

ID=11218967

Family Applications (1)

Application Number Title Priority Date Filing Date
BG033920A BG33298A3 (en) 1975-08-08 1976-08-04 Method for fighting the settling of homo- and copolymers of vinylchloride

Country Status (31)

Country Link
JP (1) JPS5237990A (en)
AR (1) AR211275A1 (en)
AT (1) AT351256B (en)
AU (1) AU506993B2 (en)
BE (1) BE844978A (en)
BG (1) BG33298A3 (en)
CA (1) CA1083750A (en)
CH (1) CH608507A5 (en)
CS (1) CS209874B2 (en)
DD (1) DD126262A5 (en)
DE (1) DE2635487C3 (en)
DK (1) DK147423C (en)
EG (1) EG12260A (en)
ES (1) ES450917A1 (en)
FR (1) FR2320314A1 (en)
GB (1) GB1519359A (en)
IE (1) IE44309B1 (en)
IL (1) IL50152A (en)
IN (2) IN144224B (en)
IT (1) IT1044367B (en)
LU (1) LU75552A1 (en)
MX (1) MX3261E (en)
NL (1) NL164869C (en)
NO (1) NO147030C (en)
PH (1) PH13287A (en)
PT (1) PT65447B (en)
RO (1) RO72240A (en)
SE (1) SE429554B (en)
TR (1) TR19096A (en)
YU (1) YU39217B (en)
ZA (1) ZA764470B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058652A (en) * 1976-02-10 1977-11-15 Exxon Research & Engineering Co. Autorefrigeration process and apparatus
DE3637060C2 (en) * 1986-10-31 1999-02-04 Wacker Chemie Gmbh Device for spraying or injecting liquid into a container and its use
DE60016112T2 (en) * 1999-08-27 2005-11-03 Rohm And Haas Co. Process for the purification of reactors
EP1471077A3 (en) * 1999-08-27 2005-02-02 Rohm And Haas Company Process for cleaning reactors
KR102075855B1 (en) * 2010-12-14 2020-02-10 사솔 테크날러지 (프로프라이어터리) 리미티드 Cleaning of process equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2239942C3 (en) * 1972-08-14 1988-02-11 Wacker-Chemie GmbH, 8000 München Process for the polymerization of vinyl chloride

Also Published As

Publication number Publication date
IN144965B (en) 1978-10-05
IE44309L (en) 1977-02-08
PH13287A (en) 1980-03-04
FR2320314A1 (en) 1977-03-04
PT65447B (en) 1978-02-10
IL50152A0 (en) 1976-09-30
IE44309B1 (en) 1981-10-21
ATA585376A (en) 1978-12-15
EG12260A (en) 1978-12-31
DE2635487B2 (en) 1980-02-14
DK355276A (en) 1977-02-09
DE2635487C3 (en) 1985-07-18
NL164869C (en) 1981-02-16
AU506993B2 (en) 1980-01-31
IL50152A (en) 1979-11-30
NL7608848A (en) 1977-02-10
AR211275A1 (en) 1977-11-15
DK147423B (en) 1984-07-30
JPS5237990A (en) 1977-03-24
ES450917A1 (en) 1977-08-16
YU39217B (en) 1984-08-31
IN144224B (en) 1978-04-08
LU75552A1 (en) 1977-03-25
IT1044367B (en) 1980-03-20
NO762717L (en) 1977-02-09
MX3261E (en) 1980-08-12
AT351256B (en) 1979-07-10
DK147423C (en) 1985-02-18
TR19096A (en) 1978-05-16
PT65447A (en) 1976-09-01
YU192376A (en) 1982-05-31
DE2635487A1 (en) 1977-06-30
NL164869B (en) 1980-09-15
CS209874B2 (en) 1981-12-31
FR2320314B1 (en) 1979-08-17
GB1519359A (en) 1978-07-26
CH608507A5 (en) 1979-01-15
NO147030C (en) 1984-09-07
DD126262A5 (en) 1977-07-06
SE7608867L (en) 1977-02-09
SE429554B (en) 1983-09-12
CA1083750A (en) 1980-08-12
ZA764470B (en) 1977-07-27
RO72240A (en) 1981-11-04
AU1641176A (en) 1978-02-02
BE844978A (en) 1977-02-07
NO147030B (en) 1982-10-11

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