GB1265419A - - Google Patents

Info

Publication number
GB1265419A
GB1265419A GB1265419DA GB1265419A GB 1265419 A GB1265419 A GB 1265419A GB 1265419D A GB1265419D A GB 1265419DA GB 1265419 A GB1265419 A GB 1265419A
Authority
GB
United Kingdom
Prior art keywords
acrylic acid
phenothiazine
distilling
heading
aug
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
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 filed Critical
Publication of GB1265419A publication Critical patent/GB1265419A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C51/43—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
    • C07C51/50—Use of additives, e.g. for stabilisation
    • 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
    • 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

Landscapes

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

Abstract

1,265,419. Acrylic acid. BP CHEMICALS Ltd. 13 July, 1970 [22 Aug., 1969], No. 41998/69. Heading C2C. The polymerization of acrylic acid during distillation is minimized by distilling the acrylic acid in the presence of nitrous acid in the gas phase and phenothiazine in the liquid phase.
GB1265419D 1969-08-22 1969-08-22 Expired GB1265419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4199869 1969-08-22

Publications (1)

Publication Number Publication Date
GB1265419A true GB1265419A (en) 1972-03-01

Family

ID=10422366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265419D Expired GB1265419A (en) 1969-08-22 1969-08-22

Country Status (5)

Country Link
BE (1) BE755047A (en)
DE (1) DE2041144A1 (en)
FR (1) FR2056825A5 (en)
GB (1) GB1265419A (en)
NL (1) NL7012289A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620206A1 (en) * 1993-04-15 1994-10-19 Nippon Shokubai Co., Ltd. Method for inhibiting polymerization of (meth)acrylic acid and esters thereof
EP0685447A3 (en) * 1994-06-02 1995-12-20 Nippon Catalytic Chem Ind
US5728872A (en) * 1994-06-27 1998-03-17 Lutz Riemenschneider Stabilized acrylic acid compositions
US10723678B2 (en) 2015-11-12 2020-07-28 Sabic Global Technologies B.V. Methods for using nitric oxide to inhibit popcorn polymerization during butadiene processing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2201275A1 (en) * 1972-09-29 1974-04-26 Nippon Catalytic Chem Ind Distillation of (meth)acrylic monomers - in presence of polymerisation inhibitor in column with perforated plates, and without overflow tube
FR2801306B1 (en) * 1999-11-24 2001-12-28 Atofina PROCESS FOR THE PURIFICATION OF (METH) ACRYLIC MONOMERS BY DISTILLATION

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620206A1 (en) * 1993-04-15 1994-10-19 Nippon Shokubai Co., Ltd. Method for inhibiting polymerization of (meth)acrylic acid and esters thereof
EP0685447A3 (en) * 1994-06-02 1995-12-20 Nippon Catalytic Chem Ind
US5504243A (en) * 1994-06-02 1996-04-02 Nippon Shokubai Co., Ltd. Method for inhibiting polymerization of (meth) acrylic acid and esters thereof
US5728872A (en) * 1994-06-27 1998-03-17 Lutz Riemenschneider Stabilized acrylic acid compositions
US10723678B2 (en) 2015-11-12 2020-07-28 Sabic Global Technologies B.V. Methods for using nitric oxide to inhibit popcorn polymerization during butadiene processing

Also Published As

Publication number Publication date
FR2056825A5 (en) 1971-05-14
DE2041144A1 (en) 1971-04-01
BE755047A (en) 1971-02-19
NL7012289A (en) 1971-02-24

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees