查询词典 leaching

For usual acid"s leaching out efficiency is low for Gallium in fly ash, we did some analysis on fly ash which drew out or not through X-ray, electron probe, and scan electron microscopy chlorhydric acid .And those analysis gave us rational explain that the low leaching out efficiency for Gallium from fly ash with chlorhydric acid"s draw out juice.

针对常规酸对粉煤灰中镓浸出率偏低这一现象，我们通过X-射线、电子探针和扫描电镜对盐酸浸出反应前后粉煤灰的分析，对盐酸浸出粉煤灰中镓的浸出率低作出了合理的解释。

Using the 1:1 chlorhydric acid and fly ash that has been incinerated react 8h by whisking sometimes . The cioncentraction of the draw out juice of Gallium is 10.9ug/g, The leaching out efficiency is percent of 35.2. The Galliums content and its leaching out efficiency is changed a little in the fly ash pass incinerating.

用1：1的盐酸在60℃下与焚烧后的粉煤灰间歇搅拌反应8h，浸出粉煤灰中镓浸出液中浓度为10.9μg/g，浸出率为35.2％；焚烧后不同粒级粉煤灰中镓的含量和浸出率没有明显的不同。

The effects of temperature, dialogite-to-sulfuric acid ratio, and solid-to-liquid ratio on leaching of dialogite by sulfuric acid were researched in the leaching experiment of ores from Hubei.

通过对湖北矿的浸取试验研究，讨论了温度、矿酸比、固液比对菱锰矿硫酸浸取的影响，优化了浸取条件，并确定温度对浸取的影响最为显著，使浸取率可以达到99。

In our studies,sludges composting was used as object, fluoranthene was on behalf of PAHs,and methods included dynamic sampling,room analysis,sludges' composting,leaching of soil column,and room culture were employed. The main contents include:the concentration and the distribution of PAHs in municipal sludges in Jiangsu Province,effects of composting on the concentration of PAHs in municipal sludges,the physicochemical properties of water dissolved organic matters in sludges before and after composting,effects of sludges composting and DOM on the desorption-leaching and eco-toxicity of FLT in polluted soil,and primary investigation of mechanism on same phenomena.

本论文以污泥堆肥为原料，以荧蒽(fluoranthene，FLT)为PAH的代表，采用动态取样、室内分析、污泥堆肥、土柱淋滤和室内培养等方法，系统研究了江苏城市污泥中PAHs的含量以及分布模式；堆肥对污泥中PAHs含量的影响；污泥堆肥前后水溶性有机物的理化性质特征变化；污泥堆肥对污染土壤中FLT解吸-淋滤、以及生态毒性的影响，并对有关现象进行了机理探讨。

The leaching investigation disclosed that the palladium leaching was caused by the interaction of iodobenzene with the metal Pd(0) on supported catalyst.

研究表明，Heck反应中钯的沥取是由碘苯与催化剂中Pd(0)相互作用所致。

The method comprises the steps that the molybdenum bearing spent catalyst is roasted and comminuted, then the molybdenum bearing spent catalyst is leach and filter by adopting alkaline solution bearing ammonia, ammonium bicarbonate and oxyful, and the secondary roasting and leaching are performed to the solids after filtration, the twice leaching solution is acidified and the aluminum is precipitated out, then is acidified continuously to precipitate out the molybdenum in the form of molybdic acid, the molybdic acid is dissolved by using ammonia water further, the pH value is adjusted again to obtain ammonium molybdate deposition, and the ammonium molybdate product is obtained after dryness.

将含钼废催化剂进行焙烧、粉碎，然后采用含氨、碳酸氢铵和双氧水的碱性溶液浸取并过滤，过滤后的固体物进行二次焙烧和浸取，两次浸取液酸化沉淀出铝，然后继续酸化将钼以钼酸形式沉淀出来，钼酸进一步用氨水溶解，再次调节pH值获得钼酸铵沉淀，干燥后得到钼酸铵产品。

The results show that all aluminum anodizing sludges were slightly neutral to acidic and mainly consist of more than 50% Al2O3; the similar total contents of Cu, Pb, Zn, Ni, Cd, and Cr in the 7 samples were found, namely, the concentrations of Pb, Cd were relatively lower, but that of Cu, Zn, Ni, and Cr were higher; the leaching tests indicate that all the samples were classed as nonhazardous wastes; but each of metals in the sample shows very different leaching behavior, possibly depending on their total contents and the final pH of leachates.

结果表明，铝型材污泥属于中性偏酸性物质，主要由Al2O3组成，含量在50%以上。各试样中Cu、Pb、Zn、Ni、Cd及Cr的总含量的分布趋势基本是一致的，其中Pb、Cd的含量较低，Cu、Zn、Ni及 Cr的含量较高。浸出毒性试验表明铝型材污泥属于非危险废物，但污泥中各重金属的浸出特性又各自不同，可能主要与它们在试样中的总含量和浸出液的最终pH值有关。

The precent development,including development of new leaching processes and equipment and soon,in bacteria leaching of uranium and gold ores at home and abroad are described in this paper.

阐述了目前国内外微生物浸出技术在铀、金矿石中的最新进展，包括浸出新工艺的研究、浸出设备的研制等，并提出了建

The principle and producing situation of three production methods of titanium concentrates—— Reduction smelting produces titaniferous slag,Acid leaching and Reductive leaching produce synthetic rutile are depicted;According to different production methods of titanium concentrates,the differences are summarize.

简述了工业上制备富钛料常用的几种方法--电炉熔炼法生产钛渣、盐酸浸出法、硫酸浸出法、还原锈蚀法生产人造金红石的原理、国内外生产状况。

The major phase of both slags produced from air and CO/CO2 conditions were SiO2 and Fe2O3, which have much benefit to the encapsulation of heavy metals. The leaching concentration of zinc in CO/CO2 reducing condition is an order less than that in air oxidizing condition due to the higher vapored heavy metals in CO/CO2 reducing condition compared to that in air oxidizing condition. Furthermore, the leaching rate of heavy metals in both CO/CO2 and air conditions are almost the same.

在熔渣特性改变方面，空气气体与CO/CO2还原气氛下所得之熔渣除外观上不同外，两种熔渣之XRD之图谱因熔渣之结晶程度不良，仅可鉴定出SiO2及Fe2O3两种晶相，因而熔渣中之SiO2及Fe2O3可视为较为稳定之晶体结构，故在还原气氛熔融时，对熔渣中重金属之匣限化仍具有正面助益。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷