查询词典 leaching

The loss of the diesel soot and smoke Cha Cha PAHs in the leaching rate of the most important factor is the length of brewing time;PAHs were detected in the loop on the small number of PAHs,5 of the ring PAHs were only in the low level of test,and the experiment detected no PAHs, detected no 6 of the ring,regardless of diesel smoke or soot Cha Cha,the concentration of PAHs has the highest concentration of dihydrogen Acenaphthene;On the influence of the number of brewing tea,the total concentration and the leaching rate of PAHs in the soot and smoke Chai tea are lower than on the influence of the brewing time and temperature.

其中影响煤烟茶和柴烟茶中PAHs浸出率的最主要因素都是冲泡时间的长短；检测出的PAHs都集中在环数较少的PAH，5环的PAHs仅在较少的试验水平中检出，无6环的PAHs检出，无论煤烟还是柴烟茶中PAHs的浓度都以二氢苊的最高；在冲泡次数影响下，煤烟茶、柴烟茶中PAHs的总浓度和总浸出率，比在冲泡时间和温度影响下要低。

The utilization ratio of sulfuric acid and the leaching rate of nickel were improved after adopting circular countercurrent leaching.

采用闭路循环浸出，提高了硫酸的利用率和镍的浸出率。

The experiment products met the specification of HG2340-92 in terms of its first class tribasic lead sulfate.The optimum leaching process parameters were as follows:NaCl concentration 5.5mol/L,leaching temperature 100℃,leaching time 120min,CaCl_2 con...

采用此工艺在实验室制得符合HG2340-92标准一级品要求的产品，并确定浸出过程的最佳工艺参数是：NaCl溶液浓度≥5.5mol/L，浸出温度≥100℃，浸出时间120min，CaCl2浓度0.3mol/L，HCl浓度0.15mol/L，液固比8∶1；合成三盐基硫酸铅的最佳工艺条件为：PbSO4∶NaOH=4∶6，液固比≈2∶1，室温反应时间60min，溶液的终点pH8.4~8.8。

The technological processes of raw ore direct acid-leaching,raw ore salt roasting-water leching or acid leaching and raw ore salt roasting-acid pelletizing curing-acid leaching,etc.

原矿加盐焙烧水浸或酸浸；原矿加盐焙烧一拌酸制粒熟化酸浸等工艺过程。

The results show that dynamic leaching of heavy metals increases with decreasing pH values on the whole, but the relativity is not significant. The leaching concentration is negatively correlated with time. The calculation results show that the elements with the largest cumulative leaching amount are Fe, Mn, Zn and As, and those with the smallest amount are Pb, Sn, Hg and Cd. The elements with the highest stage lixiviating rate are Ni, Co, Cr, Mn, Cd and Cu, and that with the lowest rate is Fe. The elements with the highest values of cumulative lixiviating rate and cumulative lixiviating intensity are Cr, Mn, Co, Ni and Zn, and that with the lowest ones is Fe.

结果表明，重金属元素的动态浸出整体随pH值下降而升高，但相关性不明显，浸出浓度与时间整体上呈负相关关系；浸出总量效果较好的元素为Fe、Mn、Zn、As，较差的为Pb、Sn、Hg、Cd，其他元素中等；阶段浸出率较高的元素有Ni、Co、Cr、Mn、Cd、Cu，较低的元素有Fe，Sn、Zn介于中间水平；累积浸出率和累积浸出强度较高的元素有Cr、Mn、Co、Ni、Zn，较低的元素为Fe，Cu、Cd、Sn居于中间水平。

A method of sodium chloride roast/acid leaching of copper/cyanide leaching to raise leaching rates of gold,silver and copper from copper-bearing gold concentrate was proposed.

提出了一个含铜金精矿加氯化钠焙烧—氰化浸出的工艺方法。

Due to the grain size of the gold ore of Long Tou Shan Gold Mine was relatively greater,the existing leaching equipment was unable to meet the leaching time needed,thus resulting in poor gold leaching rate.

龙头山金矿由于矿石中金的粒度较粗，而现有的浸出设备所能达到的浸出时间不能满足要求，致使金的浸出率低。

Result］High concentration of leachates had significant inhibitory effects,but low concentration of leachates had no obvious effects in the initial stage and later stage after treatment.Low concentration of alcohol leaching liquor might had stimulating effects on SOD active.Water leaching liquor had no obvious effects,but higher concentration of alcohol leaching liquor had significant inhibitory effects on root vigor.

结果］在油松针叶水提液和醇提液处理后的初期（10 d）和后期（30 d）的抑制作用仅在高浓度处理；低浓度醇提液对草坪草'抢手股'SOD活性可能有促进作用；水提液对根系活力没有明显的影响，较高浓度的醇提液对根系活力有明显的抑制作用。

With the size minishing, the leaching temperature increases, leaching-time become longer, the increasing of aqueous solution concentration and actively treating of medical stone, leaching performance of elements of medical stone mineral will be improved.

随着矿物颗粒减小、溶出时间延长以及水溶液浓度的增加等，麦饭石矿物中元素的溶出能力将会得到提高。

Comprehensive recovery of gold ; silver ; copper and lead ; oxidation leaching copper in ammonia solution ; leaching lead with nitric acid ; leaching gold and silver with cyanide

中国科学院化工冶金研究所；黄金， GOLD ，编辑部邮箱 1997年 05期综合回收金、银、铜、铅；氧化氨浸脱铜；硝酸脱铅；氰化提取金银

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。