Solvent pretreatment of feed coal for briquetting

Details Solvent pretreatment of feed coal for briquetting Solvent pretreatment of feed coal for briquetting

1979-04-26

1980-11-25

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 10E, C10L 508

Patent

active

042356032

ABSTRACT:
Solvent pretreating coal fines prior to briquetting to provide coal briquettes which have no added binder and which will withstand weathering conditions better than binder containing briquettes. The solvents are generally described as organic Lewis base solvents which are capable of electron donor action, and include among others, acetone, methyl ethyl ketone, and ethylene diamine.

REFERENCES:
patent: 1413666 (1922-04-01), Laucks
patent: 2652318 (1953-09-01), McKee
patent: 2652354 (1953-09-01), Dryden et al.
patent: 2838386 (1958-06-01), Mason
patent: 3317289 (1967-05-01), Braun et al.
patent: 4033852 (1977-07-01), Horowitz et al.
Solvent Extraction of Some Australian Coals, J. F. Cudmore, Mechanical & Chem. Eng. Transactions, Nov. 1968, pp. 173-180.
Briquette Binders: A Reappraisal, Waters and Clendenin, Proceedings of 12th Biennial Conf., 1971, pp. 144-155.

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