ES468509A1 - Un procedimiento para eliminar sustancialmente la acumula- cion de polimeros sobre las superficies internas de una va- sija de reaccion de polimerizacion - Google Patents

Un procedimiento para eliminar sustancialmente la acumula- cion de polimeros sobre las superficies internas de una va- sija de reaccion de polimerizacion

Info

Publication number
ES468509A1
ES468509A1 ES468509A ES468509A ES468509A1 ES 468509 A1 ES468509 A1 ES 468509A1 ES 468509 A ES468509 A ES 468509A ES 468509 A ES468509 A ES 468509A ES 468509 A1 ES468509 A1 ES 468509A1
Authority
ES
Spain
Prior art keywords
reaction vessel
olefinic polymerization
internally coated
coated reaction
inner surfaces
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.)
Expired
Application number
ES468509A
Other languages
English (en)
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.)
Goodrich Corp
Original Assignee
BF Goodrich 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
Application filed by BF Goodrich Corp filed Critical BF Goodrich Corp
Publication of ES468509A1 publication Critical patent/ES468509A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/002—Scale prevention in a polymerisation reactor or its auxiliary parts
    • C08F2/004—Scale prevention in a polymerisation reactor or its auxiliary parts by a prior coating on the reactor walls
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S422/00—Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
    • Y10S422/901—Polymer dissolver

Landscapes

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

Abstract

Un procedimiento para eliminar sustancialmente la acumulación de polímeros sobre las superficies internas de una vasija de reacción de polimerización, caracterizado porque comprende: a) disolver en agua desmineralizada un tanino seleccionado entre el grupo formado por taninos hidrolizables , taninos condensados, tanatos amónicos, y taninos complejados con iones metálicos, de modo que la concentración de tanino o de tanato esté comprendida entre aproximadamente 0,03 % y aproximadamente 5,0% en peso de agua, a una temperatura comprendida entre 5 y 100ºC agitando durante la disolución adicionando, si se desea, cantidades controladas de agua corriente para introducir iones calcio y magnesio Y7o de cloruro de aluminio para introducir iones aluminio, para obtener una solución de recubrimiento cuyo pH debe estar mantenido entre 3,0 y 7 que, opcionalmente puede contener un antioxidante; b) adsorber la solución procedente de la etapa anterior sobre las paredes de la vasija de reacción mediante rociado de dicho solución sobre las superficies internas del reactor a través de boquillas rociadoras para formar una película de revestimiento de alrededor de 20 Amstrongs o menos; c) si se desea, enjuagar las superficies recubiertas procedentes de la etapa anterior con agua corriente; d) cargar el reactor con los reactivos deseados para llevar a cabo la reacción de polimerización.
ES468509A 1977-06-20 1978-04-03 Un procedimiento para eliminar sustancialmente la acumula- cion de polimeros sobre las superficies internas de una va- sija de reaccion de polimerizacion Expired ES468509A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/807,957 US4105840A (en) 1977-06-20 1977-06-20 Internally coated reaction vessel for use in olefinic polymerization

Publications (1)

Publication Number Publication Date
ES468509A1 true ES468509A1 (es) 1979-11-01

Family

ID=25197521

Family Applications (1)

Application Number Title Priority Date Filing Date
ES468509A Expired ES468509A1 (es) 1977-06-20 1978-04-03 Un procedimiento para eliminar sustancialmente la acumula- cion de polimeros sobre las superficies internas de una va- sija de reaccion de polimerizacion

Country Status (21)

Country Link
US (2) US4105840A (es)
JP (1) JPS548689A (es)
AU (1) AU517005B2 (es)
BE (1) BE866616A (es)
BR (1) BR7802238A (es)
CA (1) CA1115899A (es)
DE (1) DE2826682A1 (es)
DK (1) DK275778A (es)
ES (1) ES468509A1 (es)
FR (1) FR2395281A1 (es)
GB (1) GB2000161B (es)
GR (1) GR64221B (es)
IT (1) IT7821883A0 (es)
NL (1) NL7802872A (es)
NO (1) NO781018L (es)
NZ (1) NZ186587A (es)
PH (1) PH13420A (es)
PT (1) PT67850B (es)
SE (1) SE7804315L (es)
TR (1) TR20079A (es)
ZA (1) ZA781266B (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182809A (en) * 1978-09-05 1980-01-08 The B. F. Goodrich Company Inversion polymerization process for producing vinyl resins using a dual layer coating
AU526104B2 (en) * 1978-09-08 1982-12-16 Geon Company, The Polymerization of vinyl chloride
US4200712A (en) * 1978-10-23 1980-04-29 The B. F. Goodrich Company Coating polymerization reactors with oligomer coatings derived from reaction products of substituted phenols
JPS55155001A (en) * 1979-05-21 1980-12-03 Shin Etsu Chem Co Ltd Polymerization of vinyl monomer
US4263421A (en) * 1979-09-14 1981-04-21 The B. F. Goodrich Company Process for coating reactors using organic compound vapor application
US4267291A (en) * 1979-09-14 1981-05-12 The B. F. Goodrich Company Process for coating reactors using organic compound vapor application
JPS5817208B2 (ja) * 1980-03-10 1983-04-05 呉羽化学工業株式会社 ハロゲン化エチレンの懸濁重合法
DE3045229C2 (de) * 1980-12-01 1982-12-02 Deutsche Texaco Ag, 2000 Hamburg Verfahren zur Herstellung von Vinylcyclohexen
US4421620A (en) * 1982-02-11 1983-12-20 Ppg Industries, Inc. Novel process for pretreating and coating metallic substrates electrophoretically
US4435529A (en) 1982-02-11 1984-03-06 Ppg Industries, Inc. Tannin-epoxy reaction products and compositions thereof
US4420591A (en) * 1982-04-05 1983-12-13 Air Products And Chemicals, Inc. Method for reducing wall fouling in vinyl chloride polymerization
FR2527102A1 (fr) * 1982-05-19 1983-11-25 Chloe Chemie Procede de traitement d'un reacteur de polymerisation
JPH0615566B2 (ja) * 1989-02-02 1994-03-02 信越化学工業株式会社 重合体スケールの付着防止方法
JPH0617369B2 (ja) * 1989-03-02 1994-03-09 信越化学工業株式会社 重合体スケールの付着防止方法
JPH0615567B2 (ja) * 1989-05-02 1994-03-02 信越化学工業株式会社 重合体スケールの付着防止方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1220557A (en) * 1916-06-22 1917-03-27 Daniel C Reynolds Process for obtaining bark extracts.
US2753371A (en) * 1949-12-22 1956-07-03 Gen Foods Corp Treatment of tannin extracts
US2947764A (en) * 1955-11-10 1960-08-02 Grenco Inc Method of producing, separating and recovering reaction products from bark
US3931131A (en) * 1973-12-18 1976-01-06 Kureha Kagaku Kogyo Kabushiki Kaisha Process and apparatus for suspension polymerization
JPS5113881A (en) * 1974-07-24 1976-02-03 Kanegafuchi Chemical Ind Enkabiniruno jugohoho

Also Published As

Publication number Publication date
GR64221B (en) 1980-02-12
IT7821883A0 (it) 1978-03-31
NO781018L (no) 1978-12-21
SE7804315L (sv) 1978-12-21
GB2000161A (en) 1979-01-04
NZ186587A (en) 1980-02-21
US4105840A (en) 1978-08-08
BR7802238A (pt) 1979-01-16
ZA781266B (en) 1979-02-28
TR20079A (tr) 1980-07-07
AU517005B2 (en) 1981-07-02
PT67850B (en) 1979-09-28
DK275778A (da) 1978-12-21
AU3375178A (en) 1979-09-06
PH13420A (en) 1980-04-23
DE2826682A1 (de) 1979-01-04
US4144307A (en) 1979-03-13
GB2000161B (en) 1982-01-27
NL7802872A (nl) 1978-12-22
BE866616A (fr) 1978-09-01
FR2395281A1 (fr) 1979-01-19
PT67850A (en) 1978-04-01
JPS548689A (en) 1979-01-23
CA1115899A (en) 1982-01-05

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