Calcium oxide compound with high purity
This invention is about calcium oxide. The invention relates more particularly to obtaining the calcium oxide with high purity and on the implementation.
1. A production method of a calcium oxide compound with high purity, comprising:
I. washing and drying a natural calcium oxide source,
II. vibratory ball mill grinding the natural calcium oxide source, and
III. calcinating the natural calcium oxide source in a rotary kiln using platinum as a catalyst and nitrogen to form an inert atmosphere at 700-1200° C. for 1-3 hours forming the calcium oxide compound with high purity.
2. A production method of a calcium oxide compound with high purity, comprising:
I. washing and drying a natural calcium oxide source,
II. vibratory ball mill grinding of the natural calcium oxide source,
III. calcinating the natural calcium oxide source in a rotary kiln using platinum as a catalyst nitrogen to form an inert atmosphere at 1000-1400° C. for 1.5-2.5 hours forming the calcium oxide compound with high purity.
3. The production method of the calcium oxide compound with high purity as in claim 2 , wherein the step III is conducted at 1150-1250° C. for 1 hour 45 minutes-2 hours 15 minutes.
4. The production method of the calcium oxide compound with high purity as in claim 3 , wherein the step III is conducted at 1200° C. for 2 hours.