查询词典 leached

The results showed that the decompound ratio of molybdenum disulfide and ratio of sulfur fixation could reach 99.5% and 92% respectively when the reactant ratio n(MnO_2)/n(MoS_2) was 3, reaction temperature was 450℃ and 550℃, reaction time was all 2h, and air flow was 15-20ml/min. The calcine were leached by sulfuric acid when the temperature was 30℃, and the leaching ratio of molybdenum and manganese could reach 99% and 92% respectively.

结果表明，将辉钼矿(MoS_2)和二氧化锰(MnO_2)按摩尔比1：3的比例混合均匀，在管式炉中依次在温度为450℃和550℃下分别焙烧2小时，鼓风量为15-20ml/min，此条件下MoS_2的分解率可达99.5%以上，固硫率可以达92%。

Once the gold-bearing rocks were brought to the surface, the rocks were crushed, and the gold was separated out, or leached out, typically by using arsenic or mercury (another source of environmental contamination).

这主要通过顺着含有金子的石英的纹路进行挖掘和爆破，一旦这些含有金子的矿石裸露出来，它们就会被碾碎，流水冲刷之下，金子就会被分离出来，也有人利用砷和水银(这是环境污染的另一来源)将金子过滤出来。

The results show that when the mass ratio of sodium jarosite residue to anthracite is 5∶1, reduction roast lasts at 800℃for 0.5 h, leaching is carried out at 70℃for 40 min by 0. 5 mol/L H2SO4 with liquid-solid ratio of 7∶1, 93% of both iron and nickel can be leached out.

研究结果表明：当黄钠铁矾渣与无烟煤按质量比为5∶1均匀混合，在800℃还原焙烧0.5 h，焙烧渣用0.5 mol/L硫酸溶液按液固比7∶1在70℃浸出40 min时，渣中93%的铁和镍进入浸出液中。

The results show that when the mass ratio of sodium jarosite residue to anthracite is 5:1, reduction roast lasts at 800℃ for 0.5 h, leaching is carried out at 70℃ for 40 mm by 0.5 mol/L H2SO4 with liquid-solid ratio of 7:1, 93% of both iron and nickel can be leached out.

研究结果表明：当黄钠铁矶渣与无烟煤按质量比为5：1均匀混合，在800℃还原焙烧0.5h，焙烧渣用0.5mol/L硫酸溶液按液固比7：1在70℃浸出40min时，渣中93%的铁和镍进入浸出液中。

The results show that the decomposition rate of ammonium jarosite can reach 98.03% under the following optimum conditions, which are m m=0.381 41, temperature 60 ℃, liquid-solid ratio 21, reaction time 2 h. During the alkaline decomposition, the impurity elements, such as Zn, In, Cu, Cd, Pb, Sb, Sn and Ag are left in the residue, while As is leached into the pregnant solution as AsO43 with leaching rate of 83.36%.

结果表明：在 m m=0.381 41、温度60 ℃、液固比21、反应时间2 h的最优条件下，铁矾渣的分解率达到98.03%，而原料中的杂质金属，如Sn、Sb、Zn、In、Cu、Cd、Pb和Ag等绝大部分留在分解渣中，As则以AsO43的形态大部分进入溶液，浸出率达到83.36%。

The results indicated that when initial NO3--N was not leached, soil initial NO3--N and mineral N extracted by CaCl2 before aerobic incubation were closely related with raygrass nitrogen uptake, the correlation coefficients were 0.856 and 0.862, respectively, both reached at 1% significant level. When initial NO3--N was leached, it was no good relationship between mineralizable N extracted by aerobic incubation, soil initial mineral N and mineralizable N extracted by aerobic incubation, N0 and soil initial mineral N and N0 with raygrass nitrogrn uptake, the correlation coefficients were 0.410, 0.553, 0.492 and 0.419, respectively, indicating that the poor effects of mineralizable N on reflecting soil N capacity were influenced and disturbed by initial nitrate.

以包括土壤起始NO3--N盆栽试验植物吸氮量为参比，通气培养前CaCl2所淋洗起始NO3--N和起始矿质氮与5期黑麦草地上部氮素累积量密切相关，相关系数分别为0.856和0.862，达1%显著水平；与此相反，通气培养30周所矿化氮素、土壤起始矿质氮+通气培养30周矿化氮素、氮素矿化势(N0)及N0+起始矿质氮与5期黑麦草地上部氮素累积量间无显著相关关系，相关系数分别仅为0.410、0.553、0.492和0.419。

The process of three-step countercurrentleaching is presented, in the first leaching step Fe as leading impurity inthe matte is leached priorly, Co and Ni are enriched in the residue of thefirst step and then are leached in the second leaching step with a lowconcentration acid, the residue from the second step containing hardleaching Fe, Co and Ni are leached with a high concentration sulfuricacid in the third step, and Cu stays in the final resude, the leachate of thethird leaching step is diluted and divided into two parts as the leachantsto the first and second leaching step.

在此基础上，提出了三段逆流选择性浸出技术：即第一段用低酸优先浸出钴冰铜中杂质铁，将钴镍富集到第一段的浸出渣中，第二段再用低酸浸出渣中部分钴镍，第三段用高酸浸出第二段渣中难浸的钴镍铁，将铜留在最终的浸出渣中，第三段浸出液经稀释，分流，分别返回至第一段，第二段作低酸浸出介质。

The effective concentration of added Ni causing 50% inhibition（EC50）ranged from 11 to 932mg·kg-1 in leached soils which were leached using artificial rain water, and from 7 to 2055mg·kg-1 in unleached soils for the tomato test, respectively, and the ratios of maximum to minimum of EC50 for leached soils and unleached soils were 85 and 294. Soil pH was the main factor controlling the toxicity of Ni in these soils.

在供试淋洗（使用模拟的人工雨水滤洗定量的土壤样品）和非淋洗土壤中，Ni对西红柿生物量50%抑制的毒性阈值（EC50）范围分别从11mg·kg-1到932mg·kg-1和从7mg·kg-1到2055mg·kg-1，其最大值和最小值比例分别达到了85和294倍。

Brief description is given to the test on the technology for comprehensively recovering gold and silver from tellurium-bearing slag: Tellurium-bearing slag is ground and leached with water to produce crud tellurium dioxide which is then purified through ion precipitation and complexing purification process; leaching reside is leached with chloride to produce copper and bismuth, bismuth oxychloride is recovered through neutralization and hydrolysis and sponge copper is recovered through cementation; gold and silver in the remaining residue can be recycled to the gold and silver smelting system for recovery.

文摘：简述了碲渣综合回收金银等的工艺试验：碲渣经磨矿水浸碲产出粗二氧化碲，用离子沉淀和络合净化法提纯；浸碲渣用氯盐浸出铜铋，中和水解回收氯氧铋，置换回收海绵铜；残留渣中的金银可返回金银冶炼系统回收。

A large amount of nitrogenous fertilizer that is not absorbed by crops or evaporated into the air is easily leached transport and accumulated in the shallow vadose zone. The accumulated nitrogen is released again and leached down into subsoils and groundwater, causing pollution. The process is mainly affected by climate, soil structure and microorganism transformation, etc.

田间施肥后，未挥发和被作物吸收的剩余N素易淋失运移，引起在浅层包气带土壤中的蓄积，且又易再释放进入下层土或地下水中形成污染，并主要受气候、土质结构、微生物作用等的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。