Chapter 3. Chinese Refractory-Grade Bauxite and Other Refractory Raw Materials from China

  1. William Smothers
  1. Lawrence R. Lebauer

Published Online: 28 MAR 2008

DOI: 10.1002/9780470318812.ch3

Proceedings of the Raw Materials for Refractories Conference: Ceramic Engineering and Science Proceedings, Volume 4, Issue 1/2

Proceedings of the Raw Materials for Refractories Conference: Ceramic Engineering and Science Proceedings, Volume 4, Issue 1/2

How to Cite

Lebauer, L. R. (1983) Chinese Refractory-Grade Bauxite and Other Refractory Raw Materials from China, in Proceedings of the Raw Materials for Refractories Conference: Ceramic Engineering and Science Proceedings, Volume 4, Issue 1/2 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470318812.ch3

Author Information

  1. Cometals, Inc. 1 Penn Plaza, New York, NY 10001

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1983

ISBN Information

Print ISBN: 9780470374009

Online ISBN: 9780470318812

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Keywords:

  • infrastructure;
  • carboniferous;
  • amorphous;
  • aluminum;
  • magnesite

Summary

The People's Republic of China is rich in refractory raw-material resources. Refractory bauxite is mined in at least four provinces with proven reserves of ≈ 1 billion tonnes (≈ 1.1 billion tons), <50% of which contains <85% Al2O3 on a calcined basis. Bauxite occurs in massive beds >7.6 m (>25.0ft) thick and is detrital in origin. Present production is conservatively estimated at ≈1.5 million tonnes/yr (≈1.7 milliontons/yr) of all qualities of bauxite, with ≈750000 tonnes representing 85% Al2O3 on a calcined basis. Low iron-content MgO is also mined in several provinces, but far and away the largest deposit occurs in Liaoning Province in the northeast section of China. This deposit ranks with the largest in the world and has proven reserves of >3 billion tonnes (>3.3 billion tons), with the limits still undefined. At least 50% of this total contains <95% MgO on a calcined basis. The MgO occurs in steeply dipping beds in which the base limit has not been determined although it has been drilled to a total of >300 m (<980ft). Present production of dead-bumed MgO from three open-pit mines on this deposit is conservatively estimated 750000 tonnes/yr (830000 tons/yr). Natural flake graphite is mined in four provinces, with proven reserves of >10 million tonnes (>11 million tons). At least 50% of the graphite has a carbon content of >80%. The graphite occurs in thick beds and is flotation beneflciated. In addition to the above, China has reserves of refractory FeCr2O4 which has future potential. However, production is presently limited due to a lack of infrastructure and remoteness of the location of the deposits. Large amounts of calcined flint clay, fire clay, and dolomite are also produced in China, primarily for internal consumption.