The results show that smelting reduction and direct alloying by chromium ore in the converter are feasible, and externally applied reducing agent is indispensable;
结果表明：转炉内用铬矿熔融还原直接合金化是可行的，且必须外加还原剂；
Other important African export commodities are iron ore and timber, followed by manganese, cobalt, copper and chromium.
其他重要的非洲出口商品是铁矿石和木材，其次还有锰、钴、铜和铬。
It has oil, gold, chromium, iron ore and a host of other minerals.
拥有石油、黄金、铬、铁矿石和大量的其他矿产。
Established a method determining the content of trace elements copper, zinc, manganese, lead, chromium, calcium, nickel of haematitum and red ore by FAAS.
建立火焰原子吸收光谱法用于测定矿物药赭石和红矿中微量元素钙、铜、锌、锰、镍、铬、铅的含量的方法。
By using chromium containing sludge as sinter ore, not only chromium pollution of environment was solved, but also resources of Fe and Cr in the sludge were recovered.
将含铬污泥配入烧结原料进行烧结不仅消除了铬污染，而且还可以回收其中的铁、铬资源。
The invention discloses a method for preparing the chromium-iron alloy directly by adopting the chromium iron powdered ore.
本发明公开了一种利用铬铁矿粉直接制备铬铁合金的方法。
The invention discloses a method for preparing the chromium-iron alloy directly by adopting the chromium iron powdered ore.
本发明公开了一种利用铬铁矿粉直接制备铬铁合金的方法。
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