Surface chemical control of ultra-fine coal to improve dewatering

J. G. Groppo; B. K. Parekh

doi:10.1080/07349349608905261

Surface chemical control of ultra-fine coal to improve dewatering

J. G. Groppo
, B. K. Parekh

Producción científica: Article › revisión exhaustiva

9 Citas (Scopus)

Resumen

Lowering of filter cake moisture of ultra-fine (d₃₀ ≈ 25 μm) coal to a 20 percent level using the conventional vacuum filtration could be achieved using a combination of metal ions and surfactants. Pretreating coal slurry with about 0.2 Kg/ton of a surfactant and 50 ppm of copper or 10 ppm of aluminum ions provided filter cake containing 22.8 percent moisture. The towering of moisture is explained due to formation of hydrophobic micro-aggregates which facilitates dewatering.

Idioma original	English
Páginas (desde-hasta)	103-116
Número de páginas	14
Publicación	Coal Preparation
Volumen	17
N.º	1-2
DOI	https://doi.org/10.1080/07349349608905261
Estado	Published - 1996

Nota bibliográfica

Funding Information:
Financial support for the study was provided by Illinois Department of Energy through the Illinois Coal Development Board and the Illinois Clean Coal Institute and the United States Department of Energy.

Financiación

Financial support for the study was provided by Illinois Department of Energy through the Illinois Coal Development Board and the Illinois Clean Coal Institute and the United States Department of Energy.

Financiadores
Illinois Coal Development Board
Illinois Department of Energy
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory
Illinois Clean Coal Institute

ASJC Scopus subject areas

Fuel Technology
Geotechnical Engineering and Engineering Geology

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title = "Surface chemical control of ultra-fine coal to improve dewatering",

abstract = "Lowering of filter cake moisture of ultra-fine (d30 ≈ 25 μm) coal to a 20 percent level using the conventional vacuum filtration could be achieved using a combination of metal ions and surfactants. Pretreating coal slurry with about 0.2 Kg/ton of a surfactant and 50 ppm of copper or 10 ppm of aluminum ions provided filter cake containing 22.8 percent moisture. The towering of moisture is explained due to formation of hydrophobic micro-aggregates which facilitates dewatering.",

keywords = "Flocculation, Metal ions, Micro-aggregates, Surfactants, Vacuum filtration",

author = "Groppo, \{J. G.\} and Parekh, \{B. K.\}",

note = "Funding Information: Financial support for the study was provided by Illinois Department of Energy through the Illinois Coal Development Board and the Illinois Clean Coal Institute and the United States Department of Energy.",

year = "1996",

doi = "10.1080/07349349608905261",

language = "English",

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TY - JOUR

T1 - Surface chemical control of ultra-fine coal to improve dewatering

AU - Groppo, J. G.

AU - Parekh, B. K.

N1 - Funding Information: Financial support for the study was provided by Illinois Department of Energy through the Illinois Coal Development Board and the Illinois Clean Coal Institute and the United States Department of Energy.

PY - 1996

Y1 - 1996

N2 - Lowering of filter cake moisture of ultra-fine (d30 ≈ 25 μm) coal to a 20 percent level using the conventional vacuum filtration could be achieved using a combination of metal ions and surfactants. Pretreating coal slurry with about 0.2 Kg/ton of a surfactant and 50 ppm of copper or 10 ppm of aluminum ions provided filter cake containing 22.8 percent moisture. The towering of moisture is explained due to formation of hydrophobic micro-aggregates which facilitates dewatering.

AB - Lowering of filter cake moisture of ultra-fine (d30 ≈ 25 μm) coal to a 20 percent level using the conventional vacuum filtration could be achieved using a combination of metal ions and surfactants. Pretreating coal slurry with about 0.2 Kg/ton of a surfactant and 50 ppm of copper or 10 ppm of aluminum ions provided filter cake containing 22.8 percent moisture. The towering of moisture is explained due to formation of hydrophobic micro-aggregates which facilitates dewatering.

KW - Flocculation

KW - Metal ions

KW - Micro-aggregates

KW - Surfactants

KW - Vacuum filtration

UR - https://www.scopus.com/pages/publications/0030409431

UR - https://www.scopus.com/pages/publications/0030409431#tab=citedBy

U2 - 10.1080/07349349608905261

DO - 10.1080/07349349608905261

M3 - Article

AN - SCOPUS:0030409431

SN - 0734-9343

VL - 17

SP - 103

EP - 116

JO - Coal Preparation

JF - Coal Preparation

IS - 1-2

ER -

Surface chemical control of ultra-fine coal to improve dewatering

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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