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Clay preparation

  • US 4,251,265 A
  • Filed: 07/27/1979
  • Issued: 02/17/1981
  • Est. Priority Date: 07/27/1979
  • Status: Expired due to Term
First Claim
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1. A process for pelletizing clay containing aluminous ore comprising the steps of:

  • a. crushing the clay to within an appropriate size range;

    b. blending the crushed clay with water to achieve a moisture content of between about 17.5 and about 22 percent by weight water;

    c. pelletizing the clay in a suitable apparatus to provide clay pellets of predetermined size;

    d. surface hardening the pellets; and

    e. drying and calcining the pellets at a temperature within the range of from about 1100°

    to about 1500°

    F.

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