BR8807173A - Composicao e processo para prevencao de incrustacoes em reator - Google Patents

Composicao e processo para prevencao de incrustacoes em reator

Info

Publication number
BR8807173A
BR8807173A BR888807173A BR8807173A BR8807173A BR 8807173 A BR8807173 A BR 8807173A BR 888807173 A BR888807173 A BR 888807173A BR 8807173 A BR8807173 A BR 8807173A BR 8807173 A BR8807173 A BR 8807173A
Authority
BR
Brazil
Prior art keywords
composition
formaldehyde
phenothiazine
reactor
solvent
Prior art date
Application number
BR888807173A
Other languages
English (en)
Inventor
Paul O Hong
Raymond C Dewald
Original Assignee
Occidental Chem Co
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 US07/079,315 external-priority patent/US4855424A/en
Application filed by Occidental Chem Co filed Critical Occidental Chem Co
Publication of BR8807173A publication Critical patent/BR8807173A/pt

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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D279/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms
    • C07D279/10—1,4-Thiazines; Hydrogenated 1,4-thiazines
    • C07D279/14—1,4-Thiazines; Hydrogenated 1,4-thiazines condensed with carbocyclic rings or ring systems
    • C07D279/18—[b, e]-condensed with two six-membered rings
    • C07D279/20—[b, e]-condensed with two six-membered rings with hydrogen atoms directly attached to the ring nitrogen atom
    • 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
    • C08F2/005—Scale prevention in a polymerisation reactor or its auxiliary parts by addition of a scale inhibitor to the polymerisation medium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Materials For Medical Uses (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Polymerisation Methods In General (AREA)
  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicinal Preparation (AREA)
  • Polyurethanes Or Polyureas (AREA)
BR888807173A 1987-07-30 1988-07-26 Composicao e processo para prevencao de incrustacoes em reator BR8807173A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/079,315 US4855424A (en) 1987-07-30 1987-07-30 Phenothiazine derivatives
US07/213,743 US4853446A (en) 1987-07-30 1988-06-30 Phenothiazine composition for use in reactor scale prevention
PCT/US1988/002462 WO1989000993A1 (en) 1987-07-30 1988-07-26 Phenothiazine dimers and oligomers, process for preparing and use in reactor scale prevention

Publications (1)

Publication Number Publication Date
BR8807173A true BR8807173A (pt) 1989-10-03

Family

ID=26761858

Family Applications (1)

Application Number Title Priority Date Filing Date
BR888807173A BR8807173A (pt) 1987-07-30 1988-07-26 Composicao e processo para prevencao de incrustacoes em reator

Country Status (13)

Country Link
US (1) US4853446A (pt)
EP (1) EP0332666B1 (pt)
JP (1) JP2680394B2 (pt)
KR (1) KR960007168B1 (pt)
CN (2) CN1022627C (pt)
AT (1) ATE129705T1 (pt)
AU (1) AU618552B2 (pt)
BR (1) BR8807173A (pt)
CA (1) CA1307262C (pt)
DE (1) DE3854647T2 (pt)
HU (1) HU207725B (pt)
NO (1) NO177497C (pt)
WO (1) WO1989000993A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243000A (en) * 1987-07-30 1993-09-07 Occidental Chemical Corporation Process for making polyvinyl chloride using phenothiazine oligomer
US5298578A (en) * 1987-07-30 1994-03-29 Occidental Chemical Corporation Use of phenothiazine derivatives to inhibit scale build up during polymerization of vinyl chloride
AU6715990A (en) * 1989-04-27 1991-05-31 Occidental Chemical Corporation Polymerization reactor scale prevention
US5155148A (en) * 1989-09-25 1992-10-13 The Goodyear Tire & Rubber Company Ester derivatives from p-hydroxydiphenylamine
US6174986B1 (en) 1996-12-20 2001-01-16 Mitsui Chemicals, Inc. Polymerization of vinyl chloride
EP1915384B1 (en) 2005-08-19 2012-01-11 Dow Corning Toray Co., Ltd. A method of manufacturing an organic silicon compound that contains a methacryloxy group or an acryloxy group
JP5247997B2 (ja) * 2005-08-19 2013-07-24 東レ・ダウコーニング株式会社 メタクリロキシ基またはアクリロキシ基含有有機ケイ素化合物の製造方法
EP2581421A1 (en) * 2011-10-12 2013-04-17 Ineos Europe AG Additive
JP6772103B2 (ja) * 2017-04-12 2020-10-21 横河電機株式会社 重合抑制システム及び重合抑制方法
CN106986957A (zh) * 2017-05-04 2017-07-28 宜宾天原集团股份有限公司 本体法聚氯乙烯防粘釜生产方法
KR20210006634A (ko) 2019-07-09 2021-01-19 에스케이이노베이션 주식회사 윤활 조성물 및 이를 이용한 공중합체의 제조 방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US455834A (en) * 1891-07-14 Oliver swedberg and edward swedberg
US3565834A (en) * 1964-10-09 1971-02-23 Basf Ag Production of polyamide moldings
JPS54141896A (en) * 1978-04-26 1979-11-05 Fuji Photo Film Co Ltd Photoconductive polymeric material
DE3111513A1 (de) * 1981-03-24 1982-10-21 Bayer Ag, 5090 Leverkusen Neue stabilisatoren
DE3127750A1 (de) * 1981-07-14 1983-02-03 Bayer Ag, 5090 Leverkusen Stabilisatorhaltige reaktivkomponenten fuer pu-schaumstoffe, neue stabilisatoren und ein verfahren zur herstellung der stabilisatoren
US4529500A (en) * 1984-08-10 1985-07-16 Atlantic Richfield Method for minimizing fouling of heat exchanger

Also Published As

Publication number Publication date
NO177497B (no) 1995-06-19
NO891237L (no) 1989-04-06
CN1079969A (zh) 1993-12-29
KR960007168B1 (ko) 1996-05-29
ATE129705T1 (de) 1995-11-15
AU2257588A (en) 1989-03-01
EP0332666A1 (en) 1989-09-20
CN1022627C (zh) 1993-11-03
JP2680394B2 (ja) 1997-11-19
KR890701573A (ko) 1989-12-21
NO891237D0 (no) 1989-03-21
CA1307262C (en) 1992-09-08
DE3854647T2 (de) 1996-03-21
CN1031228A (zh) 1989-02-22
AU618552B2 (en) 1992-01-02
JPH02500845A (ja) 1990-03-22
EP0332666A4 (en) 1989-05-30
CN1039233C (zh) 1998-07-22
EP0332666B1 (en) 1995-11-02
NO177497C (no) 1995-09-27
US4853446A (en) 1989-08-01
HU207725B (en) 1993-05-28
DE3854647D1 (de) 1995-12-07
WO1989000993A1 (en) 1989-02-09
HUT49866A (en) 1989-11-28

Similar Documents

Publication Publication Date Title
BR8807173A (pt) Composicao e processo para prevencao de incrustacoes em reator
GB2069489A (en) Process for separating ferric iron from chlorinated hydrocarbons
JPS5630449A (en) Polypropylene composition
US4013580A (en) Method of preventing formation of popcorn chloroprene polymer
ES2100864T3 (es) Componentes cataliticos solidos para polimerizacion de alfa-olefinas.
EP0548641B1 (de) Poly(meth)acrylimide
JPS51136625A (en) Process for preparation of titanium double compound
KR830007738A (ko) 아크성아미드계 양이온성 고분자 응릴제의 제조방법
US2280818A (en) Process for the catalytic production of olefin-sulphur dioxide compounds of high molecular weight
US2601659A (en) Nitriles and preparation of the same
ES554896A0 (es) Procedimiento para preparar un componente de metal de transicion para un sistema catalitico de polimerizacion de olefinas.
JPS60226523A (ja) 本質的に無色透明に近い硬質β‐ピネン樹脂の製造方法
US3644317A (en) Process for the polymerization of vinyl chloride
US3903121A (en) Telomers containing 1,3-dioxane, vinyl acetate, chlorine and vinyl alcohol
JPS55108828A (en) Preparation of chlorination product and ethyl benzene
US3126408A (en) Transmission in percent
US2926205A (en) Production of chloroprene
US2545183A (en) Production of polyallyl-type alcohols from polyallyl-type formates
US3068230A (en) Method for removing color-forming bodies from n-alkylmorpholines
DE69005000D1 (de) Verfahren zur Herstellung von Acrylsäurechlorid.
JP2686490B2 (ja) クメンヒドロペルオキシドの精製方法
JPS5513213A (en) 2-(9-beta-d-ribofuranosyl purin-6-yl)-3-aminoacrylonitrile and its preparation
JPS60136539A (ja) ナフタレン誘導体の脱色精製法
DE1595051C (de) Verfahren zur Herstellung von Poly aminsulfonen
US2589871A (en) Purification of vinyl aromatic compounds

Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 30/05/2010