Method for recovering valuable elements from precombustion coal-based materials

Honaker, Rick; Zhang, Wencai

Title: Method for recovering valuable elements from precombustion coal-based materials

Patent · Tue Nov 21 00:00:00 EST 2023

OSTI ID:2293898

Honaker, Rick; Zhang, Wencai

A method for recovering valuable elements from pre-combustion coal-based materials includes the steps of grinding the materials to a predetermined size, roasting the ground materials at a temperature of 600° C.-700° C. for a predetermined residence time needed for mineral decomposition, submerging the roasted, ground materials in a solution of lixiviant, filtering the lixiviant solution to separate residual solids from a pregnant leach solution including the valuable elements and recovering and concentrating the valuable elements from the pregnant leach solution.

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Research Organization:: Univ. of Kentucky, Lexington, KY (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FE0031525

Assignee:: University of Kentucky Research Foundation (Lexington, KY)

Patent Number(s):: 11,821,054

Application Number:: 16/832,157

OSTI ID:: 2293898

Resource Relation:: Patent File Date: 03/27/2020

Country of Publication:: United States

Language:: English

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