CH470336A - Process for the purification of impure terephthalic acid - Google Patents

Process for the purification of impure terephthalic acid

Info

Publication number
CH470336A
CH470336A CH1731565A CH1731565A CH470336A CH 470336 A CH470336 A CH 470336A CH 1731565 A CH1731565 A CH 1731565A CH 1731565 A CH1731565 A CH 1731565A CH 470336 A CH470336 A CH 470336A
Authority
CH
Switzerland
Prior art keywords
purification
terephthalic acid
impure terephthalic
impure
acid
Prior art date
Application number
CH1731565A
Other languages
German (de)
Inventor
Sewall Jr Bryant Howard
Original Assignee
Mobil Oil Corp
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 Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of CH470336A publication Critical patent/CH470336A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
CH1731565A 1964-12-15 1965-12-15 Process for the purification of impure terephthalic acid CH470336A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41848264A 1964-12-15 1964-12-15

Publications (1)

Publication Number Publication Date
CH470336A true CH470336A (en) 1969-03-31

Family

ID=23658285

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1731565A CH470336A (en) 1964-12-15 1965-12-15 Process for the purification of impure terephthalic acid

Country Status (5)

Country Link
BE (1) BE673809A (en)
CH (1) CH470336A (en)
DE (1) DE1493132C3 (en)
FR (1) FR1497466A (en)
GB (1) GB1078660A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109646987B (en) * 2019-01-10 2024-03-26 合肥百思智能装备有限公司 Continuous feeding and discharging high-vacuum organic micromolecule purifying special equipment

Also Published As

Publication number Publication date
FR1497466A (en) 1967-10-13
DE1493132A1 (en) 1969-05-14
DE1493132B2 (en) 1973-05-17
BE673809A (en) 1966-06-15
GB1078660A (en) 1967-08-09
DE1493132C3 (en) 1973-12-13

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Legal Events

Date Code Title Description
PL Patent ceased