[go: up one dir, main page]

FR1523711A - Phthalic anhydride distillation process - Google Patents

Phthalic anhydride distillation process

Info

Publication number
FR1523711A
FR1523711A FR107019A FR107019A FR1523711A FR 1523711 A FR1523711 A FR 1523711A FR 107019 A FR107019 A FR 107019A FR 107019 A FR107019 A FR 107019A FR 1523711 A FR1523711 A FR 1523711A
Authority
FR
France
Prior art keywords
phthalic anhydride
distillation process
anhydride distillation
phthalic
distillation
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
FR107019A
Other languages
French (fr)
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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
Priority claimed from DE1966B0087234 external-priority patent/DE1266748C2/en
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Priority to FR107019A priority Critical patent/FR1523711A/en
Application granted granted Critical
Publication of FR1523711A publication Critical patent/FR1523711A/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
    • C07C51/54—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)
FR107019A 1966-05-21 1967-05-19 Phthalic anhydride distillation process Expired FR1523711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR107019A FR1523711A (en) 1966-05-21 1967-05-19 Phthalic anhydride distillation process

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1966B0087234 DE1266748C2 (en) 1966-05-21 1966-05-21 Process to prevent encrustation of heating surfaces during the continuous distillation of phthalic anhydride
DE1618136A DE1618136C3 (en) 1966-05-21 1967-04-15 Process for the purification of phthalic anhydride by distillation
FR107019A FR1523711A (en) 1966-05-21 1967-05-19 Phthalic anhydride distillation process

Publications (1)

Publication Number Publication Date
FR1523711A true FR1523711A (en) 1968-05-03

Family

ID=27209358

Family Applications (1)

Application Number Title Priority Date Filing Date
FR107019A Expired FR1523711A (en) 1966-05-21 1967-05-19 Phthalic anhydride distillation process

Country Status (1)

Country Link
FR (1) FR1523711A (en)

Similar Documents

Publication Publication Date Title
FR1515778A (en) Terephthalic acid purification process
CH475285A (en) Process for preparing organotrisiloxanes
CH489456A (en) Process for the preparation of aromatic tricarboxylic acids
AT269850B (en) Process for the continuous distillation of phthalic anhydride
FR95292E (en) Process for the purification of terephthalic acid.
FR1507525A (en) Process for the preparation of 5-nitro- (2) -furfurylidene imino-derivatives
FR1523711A (en) Phthalic anhydride distillation process
FR1496079A (en) Improved esterification process
FR1487936A (en) Process for preparing terephthalic acid
FR1520116A (en) Phthalic anhydride purification process
FR1518386A (en) Process for the preparation of aza-dioxa-bicyclo-alkanes
CH479517A (en) Hydroquinone preparation process
CH488642A (en) A-sinensal preparation process
CH474459A (en) Process for preparing iodofluoroalkanes
FR1447668A (en) Process for preparing phthalic anhydride
FR1522839A (en) Process for the preparation of acetyl-acetic acid polyesters
FR1491074A (en) Advanced terephthalic acid esterification process
FR1507996A (en) Process for the preparation of benzene carboxylic acids
FR1553073A (en) Process for the preparation of an epoxynovolac resin
CH424795A (en) Process for the preparation of new 5-nitro-furans substituted in position 2
FR1302453A (en) Phthalic anhydride purification process
FR1536083A (en) Esterification process
FR1537351A (en) Process for the production of phthalic anhydride
FR1541884A (en) Improved process for the preparation of ethylauramine
FR1544350A (en) Hydroquinone preparation process