FR572797A - Improvement in the purification and preparation of crude tars by the use of calcium cyanamide, and applications of the by-products resulting from the treatment - Google Patents

Improvement in the purification and preparation of crude tars by the use of calcium cyanamide, and applications of the by-products resulting from the treatment

Info

Publication number
FR572797A
FR572797A FR572797DA FR572797A FR 572797 A FR572797 A FR 572797A FR 572797D A FR572797D A FR 572797DA FR 572797 A FR572797 A FR 572797A
Authority
FR
France
Prior art keywords
purification
improvement
applications
preparation
treatment
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
Other languages
French (fr)
Inventor
Pierre-Louis Coulbeaux
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 filed Critical
Application granted granted Critical
Publication of FR572797A publication Critical patent/FR572797A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/20—Refining by chemical means inorganic or organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
FR572797D 1923-05-04 1923-05-04 Improvement in the purification and preparation of crude tars by the use of calcium cyanamide, and applications of the by-products resulting from the treatment Expired FR572797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR572797T 1923-05-04

Publications (1)

Publication Number Publication Date
FR572797A true FR572797A (en) 1924-06-12

Family

ID=8951502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR572797D Expired FR572797A (en) 1923-05-04 1923-05-04 Improvement in the purification and preparation of crude tars by the use of calcium cyanamide, and applications of the by-products resulting from the treatment

Country Status (1)

Country Link
FR (1) FR572797A (en)

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