DE3562627D1 - Method for the beneficiation of low rank coal and products obtained thereby - Google Patents

Method for the beneficiation of low rank coal and products obtained thereby

Info

Publication number
DE3562627D1
DE3562627D1 DE8585113452T DE3562627T DE3562627D1 DE 3562627 D1 DE3562627 D1 DE 3562627D1 DE 8585113452 T DE8585113452 T DE 8585113452T DE 3562627 T DE3562627 T DE 3562627T DE 3562627 D1 DE3562627 D1 DE 3562627D1
Authority
DE
Germany
Prior art keywords
coal
water
tar
esp
beneficiated
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
DE8585113452T
Other languages
German (de)
Inventor
Phillip E Mcgarry
David E Herman
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.)
Standard Oil Co
Original Assignee
Standard Oil 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 Standard Oil Co filed Critical Standard Oil Co
Application granted granted Critical
Publication of DE3562627D1 publication Critical patent/DE3562627D1/en
Expired 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
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
    • C10L1/322—Coal-oil suspensions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Abstract

Low rank coal (I) is beneficiated by (a) mixing with a surface treating mixt. (II) comprising water, a polymerisable monomer (M), a polymerisation catalyst (C) and a coal-derived oil (L); and (b) recovering beneficiated coal. Pref. (I) is bituminous, sub-bituminous coal, lignite or peat and it is pulverised in water to form a slurry of coal:water wt. ratio e.g. 1:3. (M) is an unsatd. acid, e.g. oleic acid, or ester thereof in an amt. 0.02-0.1 wt.% based on I; esp. corn oil; (C) is a peroxide or azo cpd., 10-200 ppm based on (I); it may be employed with an initiator, e.g. a copper salt; hydrogen peroxide+copper nitrate is esp. suitable. (L) is crude coal tar, tar acids, tar bases, naphtha, creosote and/or pitch, 2-3 wt.% based on (I). A further liq. carrier, e.g. a fuel oil, may be present in (II) at 0.5-5 wt.% based on (I). Conditioning agent (dispersants, surfactants or wetting agents) may also be present, e.g. sodium carbonate and/or sodium pyrophosphate.
DE8585113452T 1985-10-23 1985-10-23 Method for the beneficiation of low rank coal and products obtained thereby Expired DE3562627D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85113452A EP0219569B1 (en) 1985-10-23 1985-10-23 Method for the beneficiation of low rank coal and products obtained thereby

Publications (1)

Publication Number Publication Date
DE3562627D1 true DE3562627D1 (en) 1988-06-16

Family

ID=8193844

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585113452T Expired DE3562627D1 (en) 1985-10-23 1985-10-23 Method for the beneficiation of low rank coal and products obtained thereby

Country Status (3)

Country Link
EP (1) EP0219569B1 (en)
AT (1) ATE34180T1 (en)
DE (1) DE3562627D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705533A (en) * 1986-04-04 1987-11-10 Simmons John J Utilization of low rank coal and peat
US20240264074A1 (en) * 2021-05-20 2024-08-08 The University Of Queensland Rapid measurement of coal oxidation
CN115121375B (en) * 2022-08-11 2023-04-07 中南大学 Coal gasification fine slag-middling coal combined grinding dissociation and flotation recovery method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB448299A (en) * 1934-05-31 1936-06-05 Francis Sales Woidwich Process for preventing oxidation and other losses in coals and the like and more especially in bituminous coals
GB2068410A (en) * 1980-01-22 1981-08-12 Gulf & Western Industries Benefication of coal by polymer coating the particles thereof
AU551441B2 (en) * 1981-01-29 1986-05-01 Standard Oil Company, The Coal-aqueous (oil) mixtures

Also Published As

Publication number Publication date
EP0219569B1 (en) 1988-05-11
EP0219569A1 (en) 1987-04-29
ATE34180T1 (en) 1988-05-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee