GB1121588A - Improvements in or relating to the production of phthalic anhydride - Google Patents

Improvements in or relating to the production of phthalic anhydride

Info

Publication number
GB1121588A
GB1121588A GB18079/66A GB1807966A GB1121588A GB 1121588 A GB1121588 A GB 1121588A GB 18079/66 A GB18079/66 A GB 18079/66A GB 1807966 A GB1807966 A GB 1807966A GB 1121588 A GB1121588 A GB 1121588A
Authority
GB
United Kingdom
Prior art keywords
product
column
phthalic anhydride
starting material
anhydride
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
GB18079/66A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB1121588A publication Critical patent/GB1121588A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Furan Compounds (AREA)
GB18079/66A 1965-05-04 1966-04-25 Improvements in or relating to the production of phthalic anhydride Expired GB1121588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM65101A DE1295540B (de) 1965-05-04 1965-05-04 Verfahren zur Herstellung von reinstem Phthalsaeureanhydrid

Publications (1)

Publication Number Publication Date
GB1121588A true GB1121588A (en) 1968-07-31

Family

ID=7311331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18079/66A Expired GB1121588A (en) 1965-05-04 1966-04-25 Improvements in or relating to the production of phthalic anhydride

Country Status (7)

Country Link
US (1) US3380896A (US08092553-20120110-C00004.png)
JP (1) JPS548664B1 (US08092553-20120110-C00004.png)
BE (1) BE680473A (US08092553-20120110-C00004.png)
CS (1) CS150931B2 (US08092553-20120110-C00004.png)
DE (1) DE1295540B (US08092553-20120110-C00004.png)
GB (1) GB1121588A (US08092553-20120110-C00004.png)
NL (1) NL6602053A (US08092553-20120110-C00004.png)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1668398C3 (de) * 1967-07-07 1979-07-05 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur Gewinnung von reinen Phthalsäureanhydrid
DE1768059C2 (de) * 1968-03-27 1975-08-28 Davy Powergas Gmbh, 5000 Koeln Verfahren zur Gewinnung von vorgereinigtem Phthalsäureanhydrid
GB1225607A (US08092553-20120110-C00004.png) * 1968-08-02 1971-03-17
JPS5845435B2 (ja) * 1977-05-06 1983-10-08 新日鐵化学株式会社 無水フタル酸蒸留残渣の処理方法
DE3133310C2 (de) * 1980-12-17 1984-06-28 Davy McKee AG, 6000 Frankfurt Verfahren zur kontinuierlichen Abtrennung schwerflüchtiger Bestandteile von einem durch Naphthalin-Oxidation hergestellten Roh-Phthalsäureanhydrid
US5508443A (en) * 1994-05-12 1996-04-16 Exxon Chemical Patents Inc. Liquid phthalic anhydride recovery process
US5730844A (en) * 1996-11-29 1998-03-24 Exxon Chemical Patents Inc. Liquid phthalic anhydride recovery process using a rectification tower with benzoic acid control
US5718808A (en) * 1996-11-29 1998-02-17 Exxon Chemical Patents Inc. Solvent assisted process for recovery of phthalic anhydride in the liquid phase by distillation
US5869700A (en) * 1997-02-21 1999-02-09 Exxon Chemical Patents Inc. Method for recovering phthalic anhydride/maleic anhydride mixtures by distillation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670325A (en) * 1951-07-14 1954-02-23 American Cyanamid Co Distillation purification of phthalic anhydride
US2786805A (en) * 1954-03-01 1957-03-26 California Research Corp Process of purification of phthalic anhydride
DE1181691B (de) * 1958-05-30 1964-11-19 Imp Exp Chemischer Anlagen Verfahren zur kontinuierlichen Destillation von Phthalsaeureanhydrid
US3011955A (en) * 1959-06-04 1961-12-05 Scient Design Co Purification of phthalic anhydride
DE1097427B (de) * 1959-08-14 1961-01-19 Basf Ag Verfahren zur Gewinnung von reinem Phthalsaeureanhydrid aus dem bei der Oxydation von Naphthalin erhaltenen Rohprodukt
DE1167810B (de) * 1960-11-12 1964-04-16 Basf Ag Verfahren zur Gewinnung von reinem Phthalsaeureanhydrid
US3135669A (en) * 1961-10-16 1964-06-02 Badger Co Purification of maleic anhydride by flash vaporization and two stage fractional distillation

Also Published As

Publication number Publication date
BE680473A (US08092553-20120110-C00004.png) 1966-10-17
CS150931B2 (US08092553-20120110-C00004.png) 1973-09-17
JPS548664B1 (US08092553-20120110-C00004.png) 1979-04-17
NL6602053A (US08092553-20120110-C00004.png) 1966-11-07
US3380896A (en) 1968-04-30
DE1295540B (de) 1969-05-22

Similar Documents

Publication Publication Date Title
GB1121588A (en) Improvements in or relating to the production of phthalic anhydride
GB1023446A (en) Production of epoxy-alcohols by the decomposition of hydroperoxides
ES429625A1 (es) Procedimiento para la hidrogenacion y la desodorizacion si-multaneas de grasas yno de aceites.
AR201783A1 (es) Proceso para la produccion de anhidrido maleico por oxidacion catalica del butano en fase vapor
ES417790A1 (es) Procedimiento para la recuperacion de ester dimetilico de acido tereftalico.
GB1010057A (en) Process for the preparation of cyclic ethers
GB1231127A (US08092553-20120110-C00004.png)
GB1066148A (en) Purification of pyromellitic dianhydride
ES395783A1 (es) Un procedimiento para la obtencion de anhidrido maleico pu-ro.
GB1208478A (en) Process for producing pure phthalic anhydride
ES428247A1 (es) Procedimiento para la purificacion de mezclas de acidos grasos o de sus esteres.
GB1327184A (en) Continuous production of diketene
GB1177516A (en) Method of Preparing epsilon-Caprolactone and Derivatives thereof Free of Explosive Peroxides
ES424289A3 (es) Un procedimiento para la produccion de anhidrido ftalico purificado.
GB1342953A (en) Process for the production of cyclopentadiene from dicyclopeni dadiene
GB992203A (en) Improvements in and relating to the production of terephthalic acid
GB1026909A (en) A method of separating pure phthalic anhydrine from an oxidised ú´-xylene reaction product
GB897210A (en) Improvements in the recovery of pure phthalic anhydride from the crude product obtained in the oxidation of naphthalene
GB1028489A (en) Process for the purification of benzoic acid
GB1225607A (US08092553-20120110-C00004.png)
Cocker et al. A novel reaction of carene
GB1226208A (US08092553-20120110-C00004.png)
GB1347539A (en) Method for the production of alicyclic ketenes and products obtained thereby
ES340196A1 (es) Procedimiento para la purificacion de anhidrido ftalico bruto.
GB1045625A (en) Process for the production of perchlorinated or highly chlorinated 4-alkyl-1,3-dioxolane-2-ones