BE778869A - Procede de distillation d'un acide insature - Google Patents

Procede de distillation d'un acide insature

Info

Publication number
BE778869A
BE778869A BE778869A BE778869A BE778869A BE 778869 A BE778869 A BE 778869A BE 778869 A BE778869 A BE 778869A BE 778869 A BE778869 A BE 778869A BE 778869 A BE778869 A BE 778869A
Authority
BE
Belgium
Prior art keywords
insature
distillation
acid
emi
insature acid
Prior art date
Application number
BE778869A
Other languages
English (en)
Original Assignee
Rohm & Haas
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 Rohm & Haas filed Critical Rohm & Haas
Publication of BE778869A publication Critical patent/BE778869A/fr

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
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • C08F2/40—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation using retarding agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/50—Use of additives, e.g. for stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Description


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Claims (1)

  1. <EMI ID=22.1>
BE778869A 1969-06-24 1972-02-02 Procede de distillation d'un acide insature BE778869A (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP44049887A JPS506449B1 (fr) 1969-06-24 1969-06-24
US00215902A US3794567A (en) 1969-06-24 1972-01-06 Stabilization of unsaturated acids by distillation with a combined polymerization inhibitor
CA132,670A CA975708A (en) 1969-06-24 1972-01-18 Stabilization of acrylic acid or methacrylic acid during distillation
DE19722202980 DE2202980A1 (de) 1969-06-24 1972-01-21 Verfahren zur destillation einer polymerisierbaren ungesaettigten saeure
FR7203299A FR2170804A1 (en) 1969-06-24 1972-02-01 Unsatd acid distillation - using hydroquinone monomethyl ether benzoquinone and oxygen-contg gas as polymn inhibitors
GB746072A GB1380832A (en) 1969-06-24 1972-02-17 Distillation and stabilization of acrylic or methacrylic acid
NL7202470A NL7202470A (en) 1969-06-24 1972-02-24 Unsatd acid distillation - using hydroquinone monomethyl ether benzoquinone and oxygen-contg gas as polymn inhibitors

Publications (1)

Publication Number Publication Date
BE778869A true BE778869A (fr) 1972-08-02

Family

ID=4092095

Family Applications (1)

Application Number Title Priority Date Filing Date
BE778869A BE778869A (fr) 1969-06-24 1972-02-02 Procede de distillation d'un acide insature

Country Status (8)

Country Link
US (1) US3794567A (fr)
JP (1) JPS506449B1 (fr)
BE (1) BE778869A (fr)
CA (1) CA975708A (fr)
DE (1) DE2202980A1 (fr)
FR (1) FR2170804A1 (fr)
GB (1) GB1380832A (fr)
NL (1) NL7202470A (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021310A (en) * 1972-12-22 1977-05-03 Nippon Shokubai Kagaku Kogyo Co., Ltd. Method for inhibiting the polymerization of acrylic acid or its esters
US3960671A (en) * 1974-06-17 1976-06-01 Rohm And Haas Company Quinones as corrosion inhibitor in distilling alkanoic acids
US4061545A (en) * 1976-02-19 1977-12-06 Cosden Technology, Inc. Polymerization inhibitor for vinyl aromatic compounds
US4144137A (en) * 1976-12-13 1979-03-13 Rohm And Haas Company Method for removal of polymerization inhibitor
US4260821A (en) * 1979-03-15 1981-04-07 Halcon Research And Development Corp. Minimizing polymerization during recovery of methacrylic acid
JPS5713986U (fr) * 1980-06-26 1982-01-25
US4529500A (en) * 1984-08-10 1985-07-16 Atlantic Richfield Method for minimizing fouling of heat exchanger
ATE49588T1 (de) * 1984-10-10 1990-02-15 Amoco Corp Verfahren zur reinigung von methacrylsaeure.
US4780555A (en) * 1988-01-04 1988-10-25 Dow Corning Corporation Method for preparing and stabilizing acryl-functional halosilanes
CA2070551C (fr) * 1991-07-12 2003-04-01 Anthony V. Grossi Inhibiteurs de polymerisation pour acides acryliques et acrylates-esters
US5322960A (en) * 1993-04-15 1994-06-21 Nippon Shokubai Co., Ltd. Method for inhibiting polymerization of (meth) acrylic acid and esters thereof
MY121525A (en) * 1999-03-11 2006-01-28 Nippon Catalytic Chem Ind Shell-and tube heat exchanger and method for inhibiting polymerization in the shell-and-tube heat exchanger
JP3787261B2 (ja) 1999-04-16 2006-06-21 株式会社日本触媒 易重合性化合物の重合防止方法
DE10064642A1 (de) * 2000-12-22 2002-06-27 Basf Ag Verfahren zur Herstellung von (Meth)acrylsäure
DE102009058058A1 (de) 2009-12-14 2011-06-16 Basf Se Verfahren zur Polymerisationsinhibierung von (Meth)acrylsäure und/oder Meth)acrylsäureestern
EP2970520B1 (fr) 2013-03-15 2016-12-07 Bausch & Lomb Incorporated Procédé et appareil pour retarder la polymérisation

Also Published As

Publication number Publication date
US3794567A (en) 1974-02-26
JPS506449B1 (fr) 1975-03-14
NL7202470A (en) 1973-08-28
DE2202980A1 (de) 1973-07-26
FR2170804A1 (en) 1973-09-21
FR2170804B1 (fr) 1976-07-23
CA975708A (en) 1975-10-07
GB1380832A (en) 1975-01-15

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