综述了还原芳香族硝基化合物制备芳胺的主要方法，包括催化加氢法、金属还原法、水合肼还原法、电化学还原法等。
Four preparation methods for aromatic amine were reviewed in the paper: reduction of metals, catalytic hydrogenation reduction, hydration hydrazine reduction and electro-chemical reduction.
研究了电解还原法和金属腐蚀电偶法对煤和黄铁矿表面改性的机理。
The modification mechanism of coal and coal-pyrite surface was studied after treatment with electrolysis reduction and metal corrosion interaction.
用氯化物氢还原法从废料中回收高熔点金属和合金具有良好未前景。
Hydrogen reduction of chlorides is a perspective recovery process for refractory metal and alloy scraps.
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