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REFINING OF PACIFIC NORTHWEST KAOLINS BY AIR FLOTATION *
Author(s) -
Wilson Hewitt,
Cunliffe Jack A.
Publication year - 1933
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1933.tb19212.x
Subject(s) - quartz , mica , grinding , pneumatics , refining (metallurgy) , mineralogy , materials science , metallurgy , geology , engineering , mechanical engineering
ABSTRACT Preliminary tests were made of various types of grinding and pneumatic systems to separate the kaolin, mica, and quartz components of kaolin rock in comparison with water‐washing tests. It was found best to remove the coarse quartz and mica as completely as possible in the grinding compartment and to use pneumatics for the separation of the finest particles. Pulverization of kaolin rock increased the quartz and mica content of the purified kaolin even with the best methods of pneumatic separation.