Fe^(2+)对硫铁矿烧渣制取硫酸钾晶体影响的研究  

Study of Effect of Fe^(2+) on Potassium Sulfate Crystals from Pyrite Slag

作　　者：李旭[1] 陈吉春[1] 张仲伟[1] 

机构地区：[1]武汉理工大学资环学院,430070

出　　处：《化肥工业》2005年第1期33-35,共3页Chemical Fertilizer Industry

摘　　要：着重分析了硫铁矿烧渣制取硫酸钾工艺流程中Fe2+对硫酸钾的产量、结晶速率、产品纯度以及晶习 等方面的影响,结果发现:Fe2+的存在会使K2SO4晶体的产量增加,但会降低其生长速率;Fe2+会使K2SO4晶体 的纯度降低以及晶体形状发生变化。因此,寻找一种有效的添加剂,使其能够在提高K2SO4晶体产量的同时又 不影响K2SO4的纯度及晶体形状,应是该生产工艺的研究方向。A special effort is made to analyze the effect of Fe 2+ on the yield, crystallization rate, product purity and crystal habit of potassium sulfate in the process of manufacture of potassium sulfate from pyrite slag. The results show that the existence of Fe 2+ will lead to an increase in the yield of K 2SO 4 crystals, but will slow down the growth rate of the crystals; Fe 2+ will lower the purity of the cryrtals and cause the shape of the crystals to change. Therefore, the direction for the study of this process should be to find an effective additive, which will raise the yield of the crystals without affecting the purity of K 2SO 4 and the shape of the crystals.

关 键 词：硫酸钾 制取 晶习 产品纯度 结晶速率 硫铁矿烧渣 降低 产量 体形 生长速率 

分 类 号：TQ131.13[化学工程—无机化工]