GB221999A - Improvements in manufacturing pure anthracene and pure carbazol - Google Patents

Improvements in manufacturing pure anthracene and pure carbazol

Info

Publication number
GB221999A
GB221999A GB29313/23A GB2931323A GB221999A GB 221999 A GB221999 A GB 221999A GB 29313/23 A GB29313/23 A GB 29313/23A GB 2931323 A GB2931323 A GB 2931323A GB 221999 A GB221999 A GB 221999A
Authority
GB
United Kingdom
Prior art keywords
anthracene
pure
distillation
carbazol
carbazole
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
GB29313/23A
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.)
Chem Fab Vorm Hell & Stamer
Original Assignee
Chem Fab Vorm Hell & Stamer
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 Chem Fab Vorm Hell & Stamer filed Critical Chem Fab Vorm Hell & Stamer
Priority to GB29313/23A priority Critical patent/GB221999A/en
Publication of GB221999A publication Critical patent/GB221999A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/14833—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with metals or their inorganic compounds
    • C07C7/1485—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with metals or their inorganic compounds oxides; hydroxides; salts
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00—Systems containing at least three condensed rings
    • C07C2603/02—Ortho- or ortho- and peri-condensed systems
    • C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
    • C07C2603/24—Anthracenes; Hydrogenated anthracenes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Indole Compounds (AREA)

Abstract

The process of the parent Specification for purifying anthracene by distillation with petroleum hydrocarbons of boiling point 260 DEG C. to 315 DEG C. is modified by carrying out the distillation in the presence of caustic potash, so that the anthracene crystallizes from the distillate, and the carbazole may be obtained by boiling the residue in the still with water and drying the precipitated carbazole. In examples, powdered potash is added to a hot mixture of crude anthracene and gas oil and the whole heated under a reflux to 250 DEG C. The reflux is then disconnected and the distillation carried out either at ordinary pressures or in vacuo. The anthracene is obtained in a "fluffy" condition especially suitable for the manufacture of anthraquinone.
GB29313/23A 1923-11-20 1923-11-20 Improvements in manufacturing pure anthracene and pure carbazol Expired GB221999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29313/23A GB221999A (en) 1923-11-20 1923-11-20 Improvements in manufacturing pure anthracene and pure carbazol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29313/23A GB221999A (en) 1923-11-20 1923-11-20 Improvements in manufacturing pure anthracene and pure carbazol

Publications (1)

Publication Number Publication Date
GB221999A true GB221999A (en) 1924-09-25

Family

ID=10289556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29313/23A Expired GB221999A (en) 1923-11-20 1923-11-20 Improvements in manufacturing pure anthracene and pure carbazol

Country Status (1)

Country Link
GB (1) GB221999A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025304A (en) * 1960-03-07 1962-03-13 United States Steel Corp Method of recovering useful compounds from anthracene oil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025304A (en) * 1960-03-07 1962-03-13 United States Steel Corp Method of recovering useful compounds from anthracene oil

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