FR2361940A1 - COAL RECOVERY SYSTEM FROM MINE RESIDUES - Google Patents

COAL RECOVERY SYSTEM FROM MINE RESIDUES

Info

Publication number
FR2361940A1
FR2361940A1 FR7724842A FR7724842A FR2361940A1 FR 2361940 A1 FR2361940 A1 FR 2361940A1 FR 7724842 A FR7724842 A FR 7724842A FR 7724842 A FR7724842 A FR 7724842A FR 2361940 A1 FR2361940 A1 FR 2361940A1
Authority
FR
France
Prior art keywords
water
coal
recovery system
gangue
coal recovery
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.)
Granted
Application number
FR7724842A
Other languages
French (fr)
Other versions
FR2361940B1 (en
Inventor
Thomas Alfred Vivian
James Dennis Deimler
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of FR2361940A1 publication Critical patent/FR2361940A1/en
Application granted granted Critical
Publication of FR2361940B1 publication Critical patent/FR2361940B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/44—Application of particular media therefor
    • B03B5/442—Application of particular media therefor composition of heavy media
    • 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
    • B03B1/04—Conditioning for facilitating separation by altering physical properties of the matter to be treated by additives
    • 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
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/005—General arrangement of separating plant, e.g. flow sheets specially adapted for coal
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D3/00—Differential sedimentation

Landscapes

  • Liquid Carbonaceous Fuels (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Procédé de séparation du charbon et de sa gangue Ce procédé comprend : a. Le mélange d'une suspension aqueuse de gangue et de charbon finement divisé avec un liquide organique qui n'est pas miscible dans l'eau et qui présente une densité plus élevée que celle de l'eau pour permettre une séparation de phase de l'eau et du liquide organique, et; b. La séparation e la gangue avec l'eau et du charbon sous la forme d'une suspension dans le liquide organique. Application à la revalorisation des rejets des mines de charbon.Process for the separation of coal and its gangue This process comprises: a. Mixing an aqueous slurry of finely divided gangue and coal with an organic liquid which is immiscible in water and which has a higher density than that of water to allow phase separation of the water and body fluid, and; b. The separation of gangue with water and charcoal in the form of a suspension in organic liquid. Application to the revaluation of discharges from coal mines.

FR7724842A 1976-08-16 1977-08-12 COAL RECOVERY SYSTEM FROM MINE RESIDUES Granted FR2361940A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71473776A 1976-08-16 1976-08-16
US79301877A 1977-05-02 1977-05-02

Publications (2)

Publication Number Publication Date
FR2361940A1 true FR2361940A1 (en) 1978-03-17
FR2361940B1 FR2361940B1 (en) 1981-12-11

Family

ID=27109204

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724842A Granted FR2361940A1 (en) 1976-08-16 1977-08-12 COAL RECOVERY SYSTEM FROM MINE RESIDUES

Country Status (7)

Country Link
JP (1) JPS5323803A (en)
AU (1) AU511234B2 (en)
CA (1) CA1091622A (en)
DE (1) DE2736801A1 (en)
FR (1) FR2361940A1 (en)
GB (1) GB1584673A (en)
IN (1) IN147345B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001003843A1 (en) * 1999-07-08 2001-01-18 The Governors Of The University Of Alberta Process for treating fine coal particles
US6767465B1 (en) 1999-07-08 2004-07-27 Govenors Of The University Of Alberta Process for treating fine coal particles
CN103657838A (en) * 2013-12-09 2014-03-26 广州有色金属研究院 Method for recovering pyrite from coal gangue
CN106607183B (en) * 2017-02-09 2019-11-08 中国矿业大学 A kind of modular high-density coal measures oil shale process for upgrading and upgrading system
EP3412754B1 (en) * 2017-06-08 2020-08-05 L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude Fine coal charge for a fixed bed pressure gasifier
JP7215199B2 (en) * 2018-02-06 2023-01-31 日本製鉄株式会社 Separation method, hydrophilic particle recovery method, and hydrophobic particle recovery method
CN114247554A (en) * 2021-12-03 2022-03-29 内蒙古科技大学 Method for selecting valuable minerals in coal gangue
CN117309926B (en) * 2023-11-28 2024-02-02 中国矿业大学(北京) Method for improving coal gangue identification accuracy by using active micro-nano bubble water

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686592A (en) * 1949-11-18 1954-08-17 Hugo S Miller Process for separating minerals
DE974151C (en) * 1951-03-20 1960-09-29 Bergwerksverband Ges Mit Besch Process for the extraction of high quality fuels from raw material containing hard coal or lignite

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2151578A (en) * 1937-08-27 1939-03-21 Du Pont Method of and apparatus for isolating minerals
US3608717A (en) * 1969-07-01 1971-09-28 Brown & Williamson Tobacco Method and apparatus for the liquid separation of a mixture of materials
DE2346742C3 (en) * 1972-12-29 1979-02-01 Texaco Development Corp., New York, N.Y. (V.St.A.) Process for removing carbon particles from an aqueous dispersion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686592A (en) * 1949-11-18 1954-08-17 Hugo S Miller Process for separating minerals
DE974151C (en) * 1951-03-20 1960-09-29 Bergwerksverband Ges Mit Besch Process for the extraction of high quality fuels from raw material containing hard coal or lignite

Also Published As

Publication number Publication date
JPS5323803A (en) 1978-03-04
CA1091622A (en) 1980-12-16
AU511234B2 (en) 1980-08-07
FR2361940B1 (en) 1981-12-11
GB1584673A (en) 1981-02-18
DE2736801A1 (en) 1978-02-23
AU2788477A (en) 1979-02-22
IN147345B (en) 1980-02-09

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Legal Events

Date Code Title Description
ST Notification of lapse