Method for producing sodium chromite
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United States of America Patent
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Oct 27, 2015
Grant Date -
Nov 7, 2013
app pub date -
Sep 26, 2011
filing date -
Feb 4, 2011
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Abstract
According to this production method, the water content of a mixture of a chromium oxide (Cr2O3) powder and a sodium carbonate (Na2CO3) powder is brought to 1000 ppm or less, and the mixture is heated in an inert gas atmosphere at a calcination temperature (850 DEG C.) where the sodium carbonate and the chromium oxide undergo a calcination reaction. Sodium chromite is thereby obtained.
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