FR2414958A2 - PROCESS FOR IMPROVING THE YIELD OF CHARCOAL EXTRACTED IN A DEEP MINE SUBJECT TO CONCENTRATION BY FLOTATION - Google Patents

PROCESS FOR IMPROVING THE YIELD OF CHARCOAL EXTRACTED IN A DEEP MINE SUBJECT TO CONCENTRATION BY FLOTATION

Info

Publication number
FR2414958A2
FR2414958A2 FR7833423A FR7833423A FR2414958A2 FR 2414958 A2 FR2414958 A2 FR 2414958A2 FR 7833423 A FR7833423 A FR 7833423A FR 7833423 A FR7833423 A FR 7833423A FR 2414958 A2 FR2414958 A2 FR 2414958A2
Authority
FR
France
Prior art keywords
yield
flotation
improving
subject
concentration
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
FR7833423A
Other languages
French (fr)
Other versions
FR2414958B2 (en
Inventor
Robert E Finch
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 FR2414958A2 publication Critical patent/FR2414958A2/en
Application granted granted Critical
Publication of FR2414958B2 publication Critical patent/FR2414958B2/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
    • 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

Abstract

L'invention concerne un procédé et un agent de traitement permettant d'augmenter le rendement en charbon extrait en mine profonde, les particules de charbon étant concentrées par flottation par moussage Le procédé consiste à utiliser comme promoteur ou adjuvant de moussage environ 25 à 750 g de latex de polyacrylate de sodium par tonne de charbon sec (8,5 à 250 g de polyacrylate de sodium sec par tonne de charbon sec), le polyacrylate de sodium ayant un poids moléculaire moyen d'environ 100 000 à 1 000 000 et de préférence de 1 000 000 ou plus. L'émulsion de latex contient en outre des additifs classiques.Disclosed is a method and a treatment agent for increasing the yield of coal mined in a deep mine, the coal particles being concentrated by foam flotation. The method comprises using as a promoter or a foaming aid about 25 to 750 g sodium polyacrylate latex per tonne of dry charcoal (8.5-250 g of dry sodium polyacrylate per tonne of dry charcoal), the sodium polyacrylate having an average molecular weight of about 100,000 to 1,000,000 and preferably 1,000,000 or more. The latex emulsion further contains conventional additives.

FR7833423A 1978-01-19 1978-11-27 PROCESS FOR IMPROVING THE YIELD OF CHARCOAL EXTRACTED IN A DEEP MINE SUBJECT TO CONCENTRATION BY FLOTATION Granted FR2414958A2 (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
FR2414958A2 true FR2414958A2 (en) 1979-08-17
FR2414958B2 FR2414958B2 (en) 1981-12-31

Family

ID=25355647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7833423A Granted FR2414958A2 (en) 1978-01-19 1978-11-27 PROCESS FOR IMPROVING THE YIELD OF CHARCOAL EXTRACTED IN A DEEP MINE SUBJECT TO CONCENTRATION BY 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)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA80388B (en) * 1979-01-25 1981-08-26 Dow Chemical Co Alkanolamine-tall oil fatty acid condensate conditioner for flotation of coal
US4756823A (en) * 1985-03-08 1988-07-12 Carbo Fleet Chemical Co., Ltd. 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

Citations (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
FR1252870A (en) * 1960-01-29 1961-02-03 United States Borax Chem Process of removing clay from sylvinite
US3079331A (en) * 1959-08-27 1963-02-26 American Cyanamid Co Process of recovering coal fines
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

Patent Citations (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

Also Published As

Publication number Publication date
ES475446A2 (en) 1980-01-16
CA1112378A (en) 1981-11-10
FR2414958B2 (en) 1981-12-31
AU507430B2 (en) 1980-02-14
GR70023B (en) 1982-07-23
GB2012621A (en) 1979-08-01
AU4177178A (en) 1979-08-23
DE2850988A1 (en) 1979-07-19
ZA786278B (en) 1979-10-31
GB2012621B (en) 1982-06-16
MX154137A (en) 1987-05-26

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