Transactions of the INDIAN CERAMIC SOCIETY Vol. 22 1963
Study of Andhra Pradesh Clays, Part 11-Defferential
Thermal Analysis of Clay fractions
A. V. RAJESWARA RAO and ABDE All
Pages : 131-136
DOI : 10.1080/0371750X.1963.10855466
Abstract
Five samples of clays from K.amthana, Shekapur, Pachgaon, Srirangpur and
Chintriyal were fractionated· by gravitational sedimentation and centrifugation
methods to concentrate the clay mineral c.omponents, and the various fractions
obtained were subjected to DT A. Shekapur clay. containing large quantities of
impurities could be improved considerably by fractionation. The fraction below 2
microns (over 40% of the clay) is mainly kaolinite, free from non-clay minerals
and burns white. Most of the quartz present (over 20%) was separ:ated and the
presence of illite was de~ec~ed only in finer fractions of Pachgaon and Chintriyal
clays. Kamthana and Srirangpur clays showed little improvement.
