[go: up one dir, main page]

SG85575A1 - Process for purifying acrylic acid - Google Patents

Process for purifying acrylic acid

Info

Publication number
SG85575A1
SG85575A1 SG9604557A SG1996004557A SG85575A1 SG 85575 A1 SG85575 A1 SG 85575A1 SG 9604557 A SG9604557 A SG 9604557A SG 1996004557 A SG1996004557 A SG 1996004557A SG 85575 A1 SG85575 A1 SG 85575A1
Authority
SG
Singapore
Prior art keywords
acrylic acid
purifying acrylic
purifying
acid
acrylic
Prior art date
Application number
SG9604557A
Inventor
Yoshimura Hiroshi
Kawasaki Kyosuke
Moriya Osamu
Original Assignee
Sumitomo Chemical 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
Application filed by Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Publication of SG85575A1 publication Critical patent/SG85575A1/en

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)
SG9604557A 1993-12-24 1994-12-20 Process for purifying acrylic acid SG85575A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SG85575A1 true SG85575A1 (en) 2002-01-15

Family

ID=18190092

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9604557A SG85575A1 (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
AU2002344613A1 (en) 2001-10-30 2003-06-10 Mitsubishi Chemical Corporation Method for purifying (meth)acrylic acid
EP1688407B1 (en) * 2003-11-28 2017-01-25 Mitsubishi Chemical Corporation Method of purifying (meth)acrylic acid

Citations (2)

* 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
GB1346737A (en) * 1972-01-31 1974-02-13 Standard Oil Co Process for purification of acrylic acid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (2)

* 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
GB1346737A (en) * 1972-01-31 1974-02-13 Standard Oil Co Process for purification of acrylic acid

Also Published As

Publication number Publication date
GB9425710D0 (en) 1995-02-22
GB2285046A (en) 1995-06-28
CN1109863A (en) 1995-10-11
CN1117060C (en) 2003-08-06
GB2285046B (en) 1997-12-17

Similar Documents

Publication Publication Date Title
SG93785A1 (en) A method and apparatus for purifying acrylic acid, and acrylic acid purified by the method
PL310887A1 (en) Proncovertin purification method
SG54218A1 (en) 2-keto-3-methyl-4-hydroxy-valeric acid
GB9305175D0 (en) Novel process
HU905046D0 (en) Process for purifying n-phosphono-methyl-glycine
HU9400159D0 (en) Process for producing 2-alkyl-4-fluoromethyl-thiazole-carboxylic acid alkylesters
GB2285046B (en) Process for purifying acrylic acid
HUT73647A (en) Process for refining cycclodextrin
GB9210081D0 (en) Purification process
GB9325468D0 (en) Process for purifying polyols
GB9206667D0 (en) Purification process
IL111183A0 (en) Process for the preparation of 5-fluoroanthranilic acid
HU9204061D0 (en) Purification method
HU912694D0 (en) Process for purifying 4-acet-oxy-styrene
SG30390A1 (en) Process for pure grade acrylic acid
IL106131A0 (en) Granulation process
GB9422903D0 (en) Process for purifying polyols
HU9502630D0 (en) Process to manufacture alkylbenzenesulphonic acid
HU203319B (en) Process for purifying 5-amino-salicylic acid
GB9224659D0 (en) Nox removal process
GB9210926D0 (en) Nox removal process
GB9204276D0 (en) Biological process
HUT71517A (en) Process to prepare (2-benzyloxy-6-nitrophenyl)-acetonitril
ZA923503B (en) Method for purifying TIO2 ore
GB9306065D0 (en) Process for rigid fiams