Use of chelating agents in the conversion of coal to low mineral

Details Use of chelating agents in the conversion of coal to low mineral Use of chelating agents in the conversion of coal to low mineral

1980-02-11

1981-12-22

Davis, Curtis R.

Mineral oils: processes and products

Phenolic or toxic oils

208289, 208290, 208291, C10G 100, C10G 2900, C10G 2112, C10G 2116

Patent

active

043069592

ABSTRACT:
An improvement in the production of low mineral content fuel by coal liquefaction processes which yield as a primary product a mixture of liquid and solids a part of which are suspended in the liquid whereby the separation of the suspended solids is facilitated by the addition of an effective amount of a suitable chelating agent to the mixture. The chelating agent is optionally added as a solution of the chelating agent in a suitable solvent and desirably is present in an amount from about 100 to about 150% of the stoichiometric amount required to react with the suspended solids in the mixture.

REFERENCES:
patent: 2523549 (1950-09-01), Axe
patent: 2568583 (1951-09-01), Granes
patent: 3164546 (1965-01-01), Millikan et al.
patent: 3617530 (1971-11-01), Rieve et al.

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