FR2378087A1 - Prepn. of coal for magnetic impurity sepn. - by treating with metal cpd. and reducing gas - Google Patents

Prepn. of coal for magnetic impurity sepn. - by treating with metal cpd. and reducing gas

Info

Publication number
FR2378087A1
FR2378087A1 FR7802255A FR7802255A FR2378087A1 FR 2378087 A1 FR2378087 A1 FR 2378087A1 FR 7802255 A FR7802255 A FR 7802255A FR 7802255 A FR7802255 A FR 7802255A FR 2378087 A1 FR2378087 A1 FR 2378087A1
Authority
FR
France
Prior art keywords
coal
prepn
sepn
treating
reducing gas
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.)
Withdrawn
Application number
FR7802255A
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.)
Hazen Research Inc
Original Assignee
Hazen Research Inc
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 US05/761,307 external-priority patent/US4120665A/en
Priority claimed from US05/767,659 external-priority patent/US4098584A/en
Application filed by Hazen Research Inc filed Critical Hazen Research Inc
Publication of FR2378087A1 publication Critical patent/FR2378087A1/en
Withdrawn legal-status Critical Current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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants
    • 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
    • C10L9/10—Treating solid fuels to improve their combustion by using additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Treatment of coal to facilitate magnetic removal of impurities (pyrites and/or ash-forming minerals) comprises contacting the coal simultaneously with (a) a metal cpd. capable of increasing the magnetic susceptibility of the impurities and (b) H2 or CO. Unlike the analogous process carried out in the absence of H2 or CO the present process is applicable to all types of coal.
FR7802255A 1977-01-21 1978-01-23 Prepn. of coal for magnetic impurity sepn. - by treating with metal cpd. and reducing gas Withdrawn FR2378087A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/761,307 US4120665A (en) 1977-01-21 1977-01-21 Process for improving coal
US05/767,659 US4098584A (en) 1977-02-10 1977-02-10 Removal of impurities from coal

Publications (1)

Publication Number Publication Date
FR2378087A1 true FR2378087A1 (en) 1978-08-18

Family

ID=27116964

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802255A Withdrawn FR2378087A1 (en) 1977-01-21 1978-01-23 Prepn. of coal for magnetic impurity sepn. - by treating with metal cpd. and reducing gas

Country Status (9)

Country Link
DD (1) DD140707A5 (en)
DE (1) DE2802482A1 (en)
DK (2) DK31278A (en)
ES (1) ES466215A1 (en)
FR (1) FR2378087A1 (en)
IT (1) IT1092971B (en)
NL (1) NL7800727A (en)
PL (1) PL204136A1 (en)
SE (1) SE7800685L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295345A1 (en) * 1987-06-18 1988-12-21 Massachusetts Institute Of Technology A method and apparatus for desulfurization of coal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295345A1 (en) * 1987-06-18 1988-12-21 Massachusetts Institute Of Technology A method and apparatus for desulfurization of coal

Also Published As

Publication number Publication date
SE7800685L (en) 1978-07-22
DK31278A (en) 1978-07-22
DE2802482A1 (en) 1978-07-27
NL7800727A (en) 1978-07-25
PL204136A1 (en) 1978-11-06
DD140707A5 (en) 1980-03-26
IT7819484A0 (en) 1978-01-20
ES466215A1 (en) 1978-10-01
IT1092971B (en) 1985-07-12
DK31178A (en) 1978-07-22

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Legal Events

Date Code Title Description
ST Notification of lapse