介绍了由低纯度仲辛醇催化加氢制备高纯度仲辛醇的工艺。
A process for preparation of high purity sec-octyl alcohol from low purity product by catalytic hydrogenation is introduced.
协议草案要求伊朗用80%的自行生产的低纯度的铀从法国和俄罗斯换取高浓缩的核燃料。
It calls for Iran to trade about 80 percent of its domestically produced low-grade uranium for more highly enriched nuclear fuel from France and Russia.
阐述了使用低纯度对二甲苯（PX）对PTA装置氧化残渣系统工艺参数、技术指标的影响。
The effect of low-purity PX on the process parameters and technical index of residue oxidation system of PTA plant was described.
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