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Investigation of a separation process involving liquid-water-coal systems

Journal Article:

Abstract

A liquid-liquid-solid separation procedure wherein a water-oil-coal-mineral matter slurry is allowed to come to equilibrium through mechanical agitation has for many years been applied to the separation of coal from mineral matter. The product is a black cottage cheese-like mass of agglomerated coal particles and oil suspended in the excess water which supports the dispersed mineral matter particles. A liquid bridge model which was proposed by earlier investigators is reviewed critically and used to estimate the free energy per unit area of the separation of coals of different ranks. Observations of the kinetics of the process suggest that the simple liquid bridge model is insufficient, probably due to the heterogeneous surfaces of the coal. An alternative model is proposed. 14 references.
Publication Date:
Jan 01, 1987
Product Type:
Journal Article
Reference Number:
EDB-87-091815
Resource Relation:
Journal Name: Colloids Surf.; (Netherlands); Journal Volume: 22:1
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; AGGLOMERATION; DEASHING; COAL PREPARATION; MATHEMATICAL MODELS; BINDING ENERGY; COAL RANK; HETEROGENEOUS EFFECTS; KINETICS; LIQUIDS; MINERALS; OILS; SEDIMENTATION; SEPARATION PROCESSES; SLURRIES; SOLIDS; WATER; CARBONACEOUS MATERIALS; DISPERSIONS; ENERGY; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUELS; HYDROGEN COMPOUNDS; MATERIALS; MIXTURES; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; SUSPENSIONS; 010300* - Coal, Lignite, & Peat- Preparation- (1987-)
OSTI ID:
6832589
Research Organizations:
Otisca Industries Ltd., Syracuse, NY
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: COSUD
Submitting Site:
CLA
Size:
Pages: 37-50
Announcement Date:

Journal Article:

Citation Formats

Keller, Jr, D V, and Burry, W. Investigation of a separation process involving liquid-water-coal systems. Netherlands: N. p., 1987. Web.
Keller, Jr, D V, & Burry, W. Investigation of a separation process involving liquid-water-coal systems. Netherlands.
Keller, Jr, D V, and Burry, W. 1987. "Investigation of a separation process involving liquid-water-coal systems." Netherlands.
@misc{etde_6832589,
title = {Investigation of a separation process involving liquid-water-coal systems}
author = {Keller, Jr, D V, and Burry, W}
abstractNote = {A liquid-liquid-solid separation procedure wherein a water-oil-coal-mineral matter slurry is allowed to come to equilibrium through mechanical agitation has for many years been applied to the separation of coal from mineral matter. The product is a black cottage cheese-like mass of agglomerated coal particles and oil suspended in the excess water which supports the dispersed mineral matter particles. A liquid bridge model which was proposed by earlier investigators is reviewed critically and used to estimate the free energy per unit area of the separation of coals of different ranks. Observations of the kinetics of the process suggest that the simple liquid bridge model is insufficient, probably due to the heterogeneous surfaces of the coal. An alternative model is proposed. 14 references.}
journal = {Colloids Surf.; (Netherlands)}
volume = {22:1}
journal type = {AC}
place = {Netherlands}
year = {1987}
month = {Jan}
}