FIELD: process engineering.
SUBSTANCE: invention relates to production of pellets from zinc oxide mix by forming, particularly, to its intermediate step, i.e. sintering. Sintering is performed in muffle kiln in air in two steps: pre-sintering intended for decreasing the content of impurities at 500-600°C for 2-3 hours, sintering proper to impart required physical properties to pellets at 1050-1100°C for 1-2 hours.
EFFECT: preset physical parameters and chemical purity.
2 ex
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Authors
Dates
2013-06-10—Published
2011-07-08—Filed