Potassium-feldspar is a main resource of potash fertilizer. 鉀長(cháng)石分解制鉀肥是鉀肥制造的一條重要途徑。
Experiments on iron removal from potash feldspar ore from Yuanmou area by using maguetic separation have been carried out. 介紹采用全磁選工藝，對云南元謀縣丙令鄉鉀長(cháng)石礦石進(jìn)行了除鐵試驗研究。
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