GB9425710D0 - Process for purifying acrylic acid - Google Patents

Process for purifying acrylic acid

Info

Publication number
GB9425710D0
GB9425710D0 GBGB9425710.2A GB9425710A GB9425710D0 GB 9425710 D0 GB9425710 D0 GB 9425710D0 GB 9425710 A GB9425710 A GB 9425710A GB 9425710 D0 GB9425710 D0 GB 9425710D0
Authority
GB
United Kingdom
Prior art keywords
acrylic acid
purifying acrylic
purifying
acid
acrylic
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.)
Granted
Application number
GBGB9425710.2A
Other versions
GB2285046B (en
GB2285046A (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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of GB9425710D0 publication Critical patent/GB9425710D0/en
Publication of GB2285046A publication Critical patent/GB2285046A/en
Application granted granted Critical
Publication of GB2285046B publication Critical patent/GB2285046B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB9425710A 1993-12-24 1994-12-20 Process for purifying acrylic acid Expired - Fee Related GB2285046B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32664493 1993-12-24

Publications (3)

Publication Number Publication Date
GB9425710D0 true GB9425710D0 (en) 1995-02-22
GB2285046A GB2285046A (en) 1995-06-28
GB2285046B GB2285046B (en) 1997-12-17

Family

ID=18190092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9425710A Expired - Fee Related GB2285046B (en) 1993-12-24 1994-12-20 Process for purifying acrylic acid

Country Status (3)

Country Link
CN (1) CN1117060C (en)
GB (1) GB2285046B (en)
SG (1) SG85575A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9819600D0 (en) * 1998-09-08 1998-11-04 Marks A H & Co Ltd Chemical compositions
JP4361995B2 (en) 1999-12-22 2009-11-11 株式会社日本触媒 Acrylic acid purification method
US6927268B2 (en) * 2000-06-21 2005-08-09 Nippon Shokubai Co., Ltd. Production process for water-absorbent resin
DE10064641A1 (en) * 2000-12-22 2002-06-27 Basf Ag Production of acrylic acid by catalytic gas-phase oxidation of propene or acrolein involves fractional condensation or rectification with addition of phenothiazine and phenolic stabilizers at the column head
CN1267397C (en) 2001-10-30 2006-08-02 三菱化学株式会社 Method for purifying (meth)acrylic acid
BRPI0416962A8 (en) * 2003-11-28 2017-12-19 Mitsubishi Chem Corp ACRYLIC ACID (MET) PURIFICATION METHOD

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725208A (en) * 1971-08-20 1973-04-03 Nippon Kayaku Kk Process for purification of acrylic acid from aldehydes by distillation with a reagent
CA962698A (en) * 1972-01-31 1975-02-11 The Standard Oil Company Process for purification of acrylic acid
JPS4930312A (en) * 1972-07-17 1974-03-18
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

Also Published As

Publication number Publication date
GB2285046B (en) 1997-12-17
CN1109863A (en) 1995-10-11
SG85575A1 (en) 2002-01-15
CN1117060C (en) 2003-08-06
GB2285046A (en) 1995-06-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20071220