Some improvement was taken on the basis of the traditional process in this paper.Iron was removed with the jarosite process and ferric hydroxid;
本文在传统工艺的基础上对其中的一些阶段提出了
，
铁阶段采用针铁矿法和氢氧
铁联合两
法来铁；
物Some improvement was taken on the basis of the traditional process in this paper.Iron was removed with the jarosite process and ferric hydroxid;
本文在传统工艺的基础上对其中的一些阶段提出了，铁阶段采用针铁矿法和氢氧铁联合两法来铁；
Metal hydroxides like aluminium trihydroxide (ATH) or magnesium dihydroxide (MDH) are commonly used halogen-free flame retardants in polyolefins.
金属氧物如氢氧铝（ATH）或氢氧
（MDH）
常用的无卤阻燃体系。
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