亜鉛鉱の硫酸化ばい焼の基礎的研究
1989 年 105 巻 8 号 p. 639-644
詳細
1989 年 105 巻 8 号 p. 639-644
In this investigation, zinc sulfide has been sulfation roasted in the closed reactor where the materials involved in the reaction are conserved and the reacting gas is being circulated. In this closed reacting system, the atmosphere for zinc sulfate formation is being gradually produced as shown in phase stability diagram calculated by thermodynamic analysis coupled with material conservation in the system. The zinc sulfate formation has been shown to take place in the following sequence: ZnS→ZnS→ZnO·2ZnSO4→ZnSO4, which is in agreement with thermodynamic prediction. However, it has been discussed and could not been clarified whether the formation of these intermediate compounds take place within the particle or not.
