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Question:

What is lime activity?

What is lime activity?

Answer:

The average activity of lime can generally be more than 300ml/4N-HCl, can significantly shorten the time of the initial slag of converter steelmaking, reduce the consumption of lime per ton, and the previous P removal is very favorable.
The microstructure of lime activity includes volume density, porosity, specific surface area and grain size of CaO minerals. The smaller the crystal size, the greater the specific surface area, and the higher the porosity, the higher the lime activity and the stronger the chemical reaction ability.
The degree of activity of lime depends on its microstructure, and the microstructure of lime is closely related to calcination temperature and calcination time.
The activity of lime is availability oflimeAn index characterizing the rate of hydration reaction of hydrated lime, i.e., the amount of 4mol / L hydrochloric acid consumed by Ca (OH) 2 produced by neutralization of lime during a sufficient period of time.

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