GB536713A - Improved method for coal dressing - Google Patents

Improved method for coal dressing

Info

Publication number
GB536713A
GB536713A GB663840A GB663840A GB536713A GB 536713 A GB536713 A GB 536713A GB 663840 A GB663840 A GB 663840A GB 663840 A GB663840 A GB 663840A GB 536713 A GB536713 A GB 536713A
Authority
GB
United Kingdom
Prior art keywords
acid
coal
fluoric
water
heated
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
GB663840A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB663840A priority Critical patent/GB536713A/en
Publication of GB536713A publication Critical patent/GB536713A/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
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/02—Treating solid fuels to improve their combustion by chemical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Inert Electrodes (AREA)

Abstract

536,713. Preparing fuel; materials for making coke. BIESEL, P. April 12, 1940, No. 6638. [Classes 50 and 55 (ii)] A pure coal suitable after coking for electrodes is obtained by treating dressed finely granulated coal of low ash content (e.g. 1 per cent.) with a solution of boiling dilute inorganic acid for example one part each of hydro-fluoric acid and hydrochloric acid and three hundred parts of water. Alternatively with the same proportion of water one part each of fluoric and nitric acids may be used. 100 kilos of coal require 150 litres of the dilute acid, the process being carried out in acid proof tanks, and the liquid being heated and agitated by injecting super-heated steam through a perforated coiled pipe. The treated coal is subsequently washed free from acid.
GB663840A 1940-04-12 1940-04-12 Improved method for coal dressing Expired GB536713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB663840A GB536713A (en) 1940-04-12 1940-04-12 Improved method for coal dressing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB663840A GB536713A (en) 1940-04-12 1940-04-12 Improved method for coal dressing

Publications (1)

Publication Number Publication Date
GB536713A true GB536713A (en) 1941-05-23

Family

ID=9818098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB663840A Expired GB536713A (en) 1940-04-12 1940-04-12 Improved method for coal dressing

Country Status (1)

Country Link
GB (1) GB536713A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4169812A (en) * 1978-03-07 1979-10-02 Fmc Corporation Regeneration of scale-coated activated carbon with acid wash
US4297108A (en) * 1978-05-10 1981-10-27 Polymer Research Corp. Of America Desulfurization of coal
EP2377912A1 (en) * 2010-04-19 2011-10-19 General Electric Company Heat Integrated Chemical Coal Treating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4169812A (en) * 1978-03-07 1979-10-02 Fmc Corporation Regeneration of scale-coated activated carbon with acid wash
US4297108A (en) * 1978-05-10 1981-10-27 Polymer Research Corp. Of America Desulfurization of coal
EP2377912A1 (en) * 2010-04-19 2011-10-19 General Electric Company Heat Integrated Chemical Coal Treating

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