Abstract
The present invention relates to a method for forming calcium sulfate dihydrate from desulfurized limestone byproducts, wherein desulfurized limestone byproducts having complex constituents react with sulfate ions or sulfite ions and variations in pH value are strictly controlled during the reaction process to cause all essential constituents in the desulfurized limestone byproducts such as calcium sulfate, calcium oxide, calcium carbonate and calcium hydroxide to eventually form into calcium sulfate dihydrate.The method has the advantages of not time-consuming and high product purity, thereby solving the environmental problem caused by the desulfurized limestone biproducts having complex constituents which are hard to handle.
| Translated title of the contribution | Method for forming calcium sulfate dihydrate from desulfurized limestone byproducts |
|---|---|
| Original language | Chinese (Traditional) |
| IPC | C01F 11/46(2006.01) |
| State | Published - 16 01 2015 |
Bibliographical note
公開公告號: 2.01502072E8Announcement ID: 2.01502072E8