GB2012621A - Concentration of coal by froth flotation - Google Patents

Concentration of coal by froth flotation

Info

Publication number
GB2012621A
GB2012621A GB7843583A GB7843583A GB2012621A GB 2012621 A GB2012621 A GB 2012621A GB 7843583 A GB7843583 A GB 7843583A GB 7843583 A GB7843583 A GB 7843583A GB 2012621 A GB2012621 A GB 2012621A
Authority
GB
United Kingdom
Prior art keywords
coal
water
oil
emulsion
froth flotation
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
GB7843583A
Other versions
GB2012621B (en
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.)
ChampionX LLC
Original Assignee
Nalco 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
Priority claimed from US05/870,559 external-priority patent/US4162966A/en
Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of GB2012621A publication Critical patent/GB2012621A/en
Application granted granted Critical
Publication of GB2012621B publication Critical patent/GB2012621B/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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/016—Macromolecular compounds
    • 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
    • B03D2203/00—Specified materials treated by the flotation agents; Specified applications
    • B03D2203/02—Ores
    • B03D2203/04—Non-sulfide ores
    • B03D2203/08—Coal ores, fly ash or soot

Landscapes

  • Liquid Carbonaceous Fuels (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A method and treating agent for increasing the yield of deep mined coal where the particles in the coal are concentrated by froth flotation. This method consists of utilizing as a promoter an invertible water-in-oil emulsion of sodium polyacrylate (0.017 - 0.5 lb of dry sodium polyacrylate per ton of dry coal), having an average molecular weight of about 100,000 to 1,000,000 and more. The promoter is preferably used with an alcohol-type frother. The emulsion may be utilized neat and self inverts with the assistance of an oil-in-water surfactant (or activator) and the water in the system upon application to form an oil-in-water emulsion, or it may be used as a two-part system with an activator (aqueous) to promote inversion.
GB7843583A 1978-01-19 1978-11-08 Method of increasing the yield of deep mined coal undergoing a concentration treatment of froth flotation Expired GB2012621B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/870,559 US4162966A (en) 1976-06-16 1978-01-19 Flotation of deep mined coal with water-in-oil emulsions of sodium polyacrylate

Publications (2)

Publication Number Publication Date
GB2012621A true GB2012621A (en) 1979-08-01
GB2012621B GB2012621B (en) 1982-06-16

Family

ID=25355647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7843583A Expired GB2012621B (en) 1978-01-19 1978-11-08 Method of increasing the yield of deep mined coal undergoing a concentration treatment of froth flotation

Country Status (9)

Country Link
AU (1) AU507430B2 (en)
CA (1) CA1112378A (en)
DE (1) DE2850988A1 (en)
ES (1) ES475446A2 (en)
FR (1) FR2414958A2 (en)
GB (1) GB2012621B (en)
GR (1) GR70023B (en)
MX (1) MX154137A (en)
ZA (1) ZA786278B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171929A (en) * 1985-03-08 1986-09-10 Cargo Fleet Chemical Co Improvements relating to particle separation
US6959815B2 (en) 2002-01-28 2005-11-01 The Governors Of The University Of Alberta Selective reactive oily bubble carriers in flotation processes and methods of generation and uses thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5599356A (en) * 1979-01-25 1980-07-29 Dow Chemical Co Additive for alkanol amineetolu oil fatty acid coal flotation method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002702B (en) * 1955-12-29 1957-02-21 Basf Ag Process for foam swimming preparation, in particular of hard coal
US3079331A (en) * 1959-08-27 1963-02-26 American Cyanamid Co Process of recovering coal fines
FR1252870A (en) * 1960-01-29 1961-02-03 United States Borax Chem Process of removing clay from sylvinite
FR1519540A (en) * 1966-05-11 1968-04-05 Prod Chim D Auby Soc D Process and products for the flotation of minerals and ores with calcareous and dolomitic gangue, such as oxidized ores, especially copper
AU4720072A (en) * 1971-10-08 1974-04-04 Tci. AUSTRALIAN MINERAL DEVELOPMENT LABORATORIES Ore flotation process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171929A (en) * 1985-03-08 1986-09-10 Cargo Fleet Chemical Co Improvements relating to particle separation
AU591100B2 (en) * 1985-03-08 1989-11-30 Cargo Fleet Chemical Co. Limited Improvements relating to particle separation
US6959815B2 (en) 2002-01-28 2005-11-01 The Governors Of The University Of Alberta Selective reactive oily bubble carriers in flotation processes and methods of generation and uses thereof

Also Published As

Publication number Publication date
FR2414958A2 (en) 1979-08-17
CA1112378A (en) 1981-11-10
MX154137A (en) 1987-05-26
AU507430B2 (en) 1980-02-14
DE2850988A1 (en) 1979-07-19
AU4177178A (en) 1979-08-23
FR2414958B2 (en) 1981-12-31
GR70023B (en) 1982-07-23
ZA786278B (en) 1979-10-31
GB2012621B (en) 1982-06-16
ES475446A2 (en) 1980-01-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961108