Advances in preparation

Journal Article · Mon Nov 01 04:00:00 EST 1982 · World Coal; (United States)

OSTI ID:6077508

Zimmerman, R E

The general economic recession appears to have a moderating influence on new plant construction in the USA and Europe, although in other parts of the world construction of new plants is continuing at a fairly rapid pace. However many plants in the USA are being modified and research in coal preparation continues at a high level. Advances in coal preparation are discussed. Jigs are compared with dense media processes and the problem of large percentages of fines is dealt with. It has been discovered that a substantial amount of a plant's coal losses can be attributed to improper froth flotation. Consequently froth flotation techniques are being investigated and substantial improvements are reported. A froth flotation process for cleaning high pyrite content coals is described. Other methods for coal cleaning are considered including bulk oil flotation, hydrocyclones, dense media cyclones, and magnetic and electrostatic separation. Brief mention is given to coal handling, dewatering, and water clarification.

• OSTI ID: 6077508
• Journal Information: World Coal; (United States), Journal Name: World Coal; (United States) Vol. 8:6; ISSN WOCOD
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
CARBONACEOUS MATERIALS
CHALCOGENIDES
CLEANING
COAL
COAL FINES
COAL PREPARATION
COAL PREPARATION PLANTS
COMPARATIVE EVALUATIONS
CONCENTRATORS
CYCLONE SEPARATORS
ELECTROSTATIC SEPARATION
ENERGY SOURCES
EQUIPMENT
FLOTATION
FOAM SEPARATION
FOSSIL FUELS
FUELS
HEAVY MEDIA SEPARATION
INDUSTRIAL PLANTS
INERTIAL SEPARATORS
IRON COMPOUNDS
IRON SULFIDES
JIGS
LOSSES
MAGNETIC SEPARATORS
MATERIALS
MINERALS
MODIFICATIONS
NORTH AMERICA
OPTIMIZATION
POLLUTION CONTROL EQUIPMENT
PYRITE
REMOVAL
RESEARCH PROGRAMS
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TECHNOLOGY UTILIZATION
TRANSITION ELEMENT COMPOUNDS
USA
WATER REMOVAL