The methods of removal such impurities as al and Ca include chlorination and oxidation refining process industrially.
工业上去除杂质元素的方法主要有氯化精炼法和氧化精炼法。
Steel and iron manufacturers also extensively use oxygen or oxygen-enriched air to affect chemical refining and heating associated with carbon removal and other oxidation reactions.
钢铁制造商还广泛使用氧或富氧空气来影响同除碳和其它氧化反应相联系的化学精炼和加热。
The experimental results showed that the oxidation alkaline residue could be used for refining the diesel oil instead of fresh alkaline.
试验结果表明，气分氧化碱渣可以替代新鲜碱用于常二线、常三线柴油的碱洗工艺。
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