介绍了以硫铁矿烧渣为原料，采用湿法硫酸盐氧化法制备氧化铁黄的工艺过程。
The technological process for the preparation of iron yellow from iron sulfide slag by sulfate oxidation method is described.
本文采用黄原酸盐法测定了代森锰锌及ND—901混剂中代森锰锌的含量。
In this paper, the quantitive analysis of mancozeb and mancozeb in ND-901 was carried out by a xanthogenate method.
脂铅铀矿一种由桔红到黄灰色的多种铀氧化物、硅酸盐和盐的混和物，在铀矿物的自然。
An orange-red to grayish yellow mixture of several uranium oxides, silicates, and salts occurring naturally in the oxidation and hydration of uraninite.
研究了淀粉基黄原酸盐的合成新工艺，通过正交试验选定了最佳工艺条件。
A new technology for synthesis of starch xanthate was studied, the optimum process conditions were selected via orthogonal tests.
该系列表面活性剂是以黄腐植酸盐或黑腐植酸盐为主体，在主体分子结构中引入了适当亲油基或亲水基而制成的。
The fulvic acid or humic acid is the body, in which some proper lipophilic group or hydrophilic group has been inducted, of the series of humate surfactants .
矿化富集与含金玉髓状石英细脉或细网脉、黄铁一白铁矿脉和碳酸盐脉的发育程度密切相关。
The enrichment of mineralization is closely related to gold-bearing quartz veins, pyrite veins and carbonate veins.
在低温中湿变黄条件下烤后烟叶物理性状较好，烟碱、总氮、淀粉、硝酸盐和亚硝酸盐含量含量较低；
The physical properties of cured tobacco leaf was best under low temperature and middle humidity yellowing condition, every index was within the range of the suitable one;
在低温中湿变黄条件下烤后烟叶物理性状较好，烟碱、总氮、淀粉、硝酸盐和亚硝酸盐含量含量较低；
The physical properties of cured tobacco leaf was best under low temperature and middle humidity yellowing condition, every index was within the range of the suitable one;
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