copperas

Experimental Study on Preparation of Ultrafine Fe(ⅲ) Oxide from By-product Copperas in Titanium White Pigment Production

硅灰石质白色颜料的研制钛白粉副产品绿矾制备超细氧化铁实验研究

The result showed that the basic waste water containing Cr6+ could be treated directly by adding copperas. The treated waste water meets the discharge standard.

结果表明，含Cr6＋碱性废水中加入七水硫酸亚铁直接处理，处理后的废水可达排放标准。

A new way for comprehensive utilization of copperas was put forward. Reduced iron powder was obtained by converting copperas to ferrous carbonate with ( NH_4)_2CO_3, followed by reduction roasting with anthracite as reducer and CaCO_3 as additive.

提出了一种新的绿矾综合利用的途径，即绿矾经碳酸盐转化，然后采用无烟煤作还原剂，CaCO3为添加剂，进行高温还原焙烧制取还原铁粉。

The major ore mineral in the Shijuli copper deposit is chalcopyrite, copperas stone and so on.

石居里铜矿床矿石中主要矿石矿物由黄铜矿及黄铁矿等组成.

In the research process, fly ash samples were taken from an ordinarily operating incineration plant firstly stabilized with copperas and than solidified by cement.

论文以深圳某焚烧厂的飞灰为研究对象，研究过程中首先采用绿矾对飞灰进行化学稳定化，随后将稳定化后的飞灰进行水泥固化。

Production of ferrous powder by oxidative roast of copperas, a byproduct of titanium pigment was introduced, and optimum process for the transformation of sulfur to sulfur trioxide was studied. Preparation of ( NH_4)_2SO_4 and Red Fe_2O_3 from Side Product of Making TiO_2 Powder

介绍了以硫酸法钛白粉副产物绿矾为原料，氧化焙烧生产铁红粉，并研究了氧化反应中硫转化为三氧化硫的适宜工艺条件。钛白粉副产物硫酸亚铁生产硫酸铵和氧化铁红的研究

The application of chlorinated copperas

氯化硫酸亚铁混凝剂的应用