GB903853A - Improvements in or relating to coal treatment - Google Patents

Improvements in or relating to coal treatment

Info

Publication number
GB903853A
GB903853A GB3127359A GB3127359A GB903853A GB 903853 A GB903853 A GB 903853A GB 3127359 A GB3127359 A GB 3127359A GB 3127359 A GB3127359 A GB 3127359A GB 903853 A GB903853 A GB 903853A
Authority
GB
United Kingdom
Prior art keywords
coal
mixing
treatment
wet
oil
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
GB3127359A
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB903853A publication Critical patent/GB903853A/en
Expired 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
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation

Landscapes

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

Abstract

Coal is treated by a method which comprises intimately mixing a dry or only surface-wet raw coal fraction containing fines and/or smalls with not more than 10% by weight of oil or other non-aqueous reagent, whereby the particles of such coal are rendered hydrophobic, mixing the thus-treated coal with water and charging it into a coal-treatment machine from which the coal is recovered. The hydrophobication causes the fine particles to agglomerate, or to adhere to larger particles, when the mixing with water takes place. Preferably the mixing with oil is carried out at an elevated temperature which may be provided by direct steam. The treatment can be improved by providing, before the actual washing process, a wet intermediate treatment of the pretreated coal in mixers, on wet screens or in a purification drum. Examples are given of the treatment of fines of various compositions.
GB3127359A 1958-09-30 1959-09-14 Improvements in or relating to coal treatment Expired GB903853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB50547A DE1120993B (en) 1958-09-30 1958-09-30 Process for processing fine and ultra-fine coals

Publications (1)

Publication Number Publication Date
GB903853A true GB903853A (en) 1962-08-22

Family

ID=6969236

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3127359A Expired GB903853A (en) 1958-09-30 1959-09-14 Improvements in or relating to coal treatment

Country Status (3)

Country Link
BE (1) BE583144A (en)
DE (1) DE1120993B (en)
GB (1) GB903853A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162966A (en) * 1976-06-16 1979-07-31 Nalco Chemical Company Flotation of deep mined coal with water-in-oil emulsions of sodium polyacrylate
US4222862A (en) * 1978-10-06 1980-09-16 Nalco Chemical Company Flotation of oxidized coal with a latex emulsion of sodium polyacrylate used as a promoter
US4389306A (en) * 1980-10-08 1983-06-21 Hitachi Shipbuilding & Engineering Co., Ltd. Process for removing ash from coal
US4456528A (en) * 1980-11-18 1984-06-26 Hitachi, Ltd. Process for removing ash from coal
GB2143155A (en) * 1983-06-27 1985-02-06 Conoco Inc A method of separating fine coal particles from refuse

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE827332C (en) * 1949-09-12 1952-01-10 Eugene Marie Burstlein Method and device for the direct screening of moist, grainy materials

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162966A (en) * 1976-06-16 1979-07-31 Nalco Chemical Company Flotation of deep mined coal with water-in-oil emulsions of sodium polyacrylate
US4222862A (en) * 1978-10-06 1980-09-16 Nalco Chemical Company Flotation of oxidized coal with a latex emulsion of sodium polyacrylate used as a promoter
US4389306A (en) * 1980-10-08 1983-06-21 Hitachi Shipbuilding & Engineering Co., Ltd. Process for removing ash from coal
US4456528A (en) * 1980-11-18 1984-06-26 Hitachi, Ltd. Process for removing ash from coal
GB2143155A (en) * 1983-06-27 1985-02-06 Conoco Inc A method of separating fine coal particles from refuse

Also Published As

Publication number Publication date
BE583144A (en) 1960-01-18
DE1120993B (en) 1962-01-04

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