ES340196A1 - Procedimiento para la purificacion de anhidrido ftalico bruto. - Google Patents

Procedimiento para la purificacion de anhidrido ftalico bruto.

Info

Publication number
ES340196A1
ES340196A1 ES340196A ES340196A ES340196A1 ES 340196 A1 ES340196 A1 ES 340196A1 ES 340196 A ES340196 A ES 340196A ES 340196 A ES340196 A ES 340196A ES 340196 A1 ES340196 A1 ES 340196A1
Authority
ES
Spain
Prior art keywords
polyunsaturated
phthalic anhydride
mixture
purification
naphthoquinones
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
ES340196A
Other languages
English (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.)
Sherwin Williams Co
Original Assignee
Sherwin Williams 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 Sherwin Williams Co filed Critical Sherwin Williams Co
Publication of ES340196A1 publication Critical patent/ES340196A1/es
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
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/573—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Furan Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ES340196A 1966-10-06 1967-04-19 Procedimiento para la purificacion de anhidrido ftalico bruto. Expired ES340196A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58467166A 1966-10-06 1966-10-06

Publications (1)

Publication Number Publication Date
ES340196A1 true ES340196A1 (es) 1969-05-16

Family

ID=24338334

Family Applications (1)

Application Number Title Priority Date Filing Date
ES340196A Expired ES340196A1 (es) 1966-10-06 1967-04-19 Procedimiento para la purificacion de anhidrido ftalico bruto.

Country Status (6)

Country Link
US (1) US3462461A (es)
BE (1) BE697832A (es)
DE (1) DE1618874A1 (es)
ES (1) ES340196A1 (es)
GB (1) GB1117839A (es)
NL (1) NL6705737A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008255A (en) * 1973-03-17 1977-02-15 Basf Aktiengesellschaft Recovery of phthalic anhydride
AU564712B2 (en) * 1983-03-16 1987-08-20 Chemische Werke Huls A.G. Method for separating naphthoquinone from phthalic anhydride
DE3502682A1 (de) * 1985-01-26 1986-07-31 Hüls AG, 4370 Marl Verfahren zur entfernung von naphthochinon aus phthalsaeureanhydrid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2033131A (en) * 1931-07-07 1936-03-10 Ellis Foster Co Reaction product and process of making same
US2510852A (en) * 1948-03-19 1950-06-06 Allied Chem & Dye Corp Process for purifying phthalic anhydride

Also Published As

Publication number Publication date
BE697832A (es) 1967-10-02
US3462461A (en) 1969-08-19
NL6705737A (es) 1968-04-08
DE1618874A1 (de) 1972-04-13
GB1117839A (en) 1968-06-26

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