I would like to ask about the use of calcium powder in potassium sulfate production
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In the Mannheim process for producing potassium sulfate, what are the quality requirements for the calcium powder used? Are there any requirements regarding the calcium carbonate content? Is there a requirement concerning the particle size of calcium carbonate? Thank you
It is to neutralize excess free acid; there are no specific requirements – as long as it can undergo a neutralization reaction with trace amounts of free acid, depending on the needs of the enterprise itself
For the calcium carbonate containing free acids from Hubei Zhongnong Zhongjia Zhonghe, there are no specific quality requirements either; ordinary calcium carbonate powder available on the market should be sufficient to meet the process requirements