Use of chelating agents in the conversion of coal to low-mineral content fuel

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.

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Description
Patent History
Patent number: T978004
Type: Grant
Filed: Apr 24, 1978
Date of Patent: Jan 2, 1979
Inventor: William G. Gibson (New Eagle, PA)
Application Number: 5/899,623
Classifications
Current U.S. Class: 208/8
International Classification: C10G 100;