Chapter 15. Using Surface Area to Solve an Inappropriate Mixing Problem

  1. William M. Carty
  1. Nikolas Ninos and
  2. William M. Carty

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294673.ch15

Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 22, Issue 2

Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 22, Issue 2

How to Cite

Ninos, N. and Carty, W. M. (2008) Using Surface Area to Solve an Inappropriate Mixing Problem, in Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 22, Issue 2 (ed W. M. Carty), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294673.ch15

Author Information

  1. Buffalo China, Inc., Buffalo, New York

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2001

ISBN Information

Print ISBN: 9780470375723

Online ISBN: 9780470294673

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Keywords:

  • surface area;
  • nepheline syenite;
  • quartz flour;
  • raw materials;
  • buffalo

Summary

Sometimes, in spite of best intentions and established protocols, accidents occur. In this case, 50 000 lb (one truckload) of nepheline syenite was inappropriately added to a raw material silo containing 120 000 lb of quartz flour. Once this occurred, there were two options:dump the silo or figure out how to use the material. The immediate response was to dump the silo, however, that created a new problem: what to do with 170 000 lb of undesirable material. Knowing how to use the material required knowledge of the ratio of nepheline syenite to quartz, which was constantly changing due to funnel flow within the storage silo. Since the density of nepheline syenite and quartz is nearly identical, density was not a viable route to solving the problem. Data obtained from previous raw material testing provided a sufficient baseline to predict the ratio of nepheline syenite to quartz using surface area measurements. The ratios were independently verified through button-type melting tests.