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Use of chelating agents in the conversion of coal to low-mineral content fuel
T978004 Use of chelating agents in the conversion of coal to low-mineral content fuel

Patent Drawings:
Inventor: Gibson
Date Issued: January 2, 1979
Application: 05/899,623
Filed: April 24, 1978
Inventors: Gibson; William G. (New Eagle, PA)
Assignee:
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 208/424; 208/428
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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.
Claim:
Description:
 
 
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