By means of distillation - fractional condensation high purity antimony trichloride was made from antimony sulphide ore.
用蒸馏 - 多级冷凝法从锑矿石制取高纯度三氯化锑.
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Primary violarite has comparatively big particle size, and it is considered the easiest flotation copper - nickle - sulphide ore.
紫硫镍铁矿原生粒度较大, 被认为是最易浮选的硫化铜镍矿物.
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In the nature, the nickel mainly exists by sulphide ore and oxide ore.
在自然界中, 镍主要以硫化镍矿和氧化镍矿状态存在.
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