PRE-TREATMENT METHOD FOR UTILIZATION OF COAL POND ASH - NATIONAL INSTITUTE OF ENVIRONMENTAL RES

Title:

PRE-TREATMENT METHOD FOR UTILIZATION OF COAL POND ASH

Document Type and Number:

WIPO Patent Application WO/2023/158010

Kind Code:

A1

Abstract:

The present invention relates to a pre-treatment method for the utilization of pond coal ash (coal ash buried in landfills near coal-fired power plants) and, more specifically, to a pre-treatment method for coal pond ash, by which the coal ash can be utilized with high usability through simple separation processes such as screening, float-sink, floatation, grinding, and magnetic separation.

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Inventors:

UM NAMIL (KR)
KANG YOUNG YEUL (KR)
YOON CHEOL WOO (KR)
HONG SOO YEON (KR)
CHO NA HYEON (KR)
KIM MIN-JUNG (KR)
CHOI JA-HYUNG (KR)
JEON TAE WAN (KR)

Application Number:

PCT/KR2022/003144

Publication Date:

August 24, 2023

Filing Date:

March 07, 2022

Export Citation:

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Assignee:

NATIONAL INSTITUTE OF ENVIRONMENTAL RES (KR)

International Classes:

B09B3/30; B03B5/30; B03B9/06; B03C1/00; B07B1/46

Domestic Patent References:

WO2020186241A1

2020-09-17

Foreign References:

KR101565906B1	2015-11-05
KR101024540B1	2011-03-31
KR101243094B1	2013-03-13
KR20140001269A	2014-01-07

Attorney, Agent or Firm:

LEE, Cheo Young et al. (KR)

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