The stability of the red pigment in litchi shell, which was extracted by acidic solution leaching from litchi shell, was studied.
以荔枝壳为原料，在酸性条件下浸提荔枝壳红色素，并对其稳定性进行了研究。
The technology of underground solution leaching-solvent extraction-electrowinning has been used successfully in Zhongtiaoshan Nonferrous Metals Company, which is first time in China.
地下溶浸— 萃取—电积技术在中条山有色金属公司成功的应用，在国内尚属首次。
The ferric sulphate solution was used for trickling the acid-cured uranium ore and the residual leaching reaction incomplete in TLL process can be improved in this process.
该法采用硫酸高铁溶液淋滤熟化矿石，完成了薄层浸出法所不能完成的残余浸出反应。
Remove of iron from sulfuric acid leaching solution of ferrochromium alloy by goethite is researched.
研究了用针铁矿法从铬铁合金硫酸浸出溶液中除铁并回收铬。
After experiment, liquid leaching rate is 70.67%. The experiment results show that solution distribution uniformity of spray sprinkling is fine, and the uranium ore leaching character is good.
浸出结果：采用雾化布液的液计浸出率70.67%，试验数据表明雾化布液均匀性好，某铀矿石浸出性能较好。
The effect of reducing agent, temperature and time on leaching of strontium are investigated, and the method for purification of strontium chloride solution is also studied.
分析了还原剂、温度和时间对锶浸出率的影响，研究了氯化锶溶液中脱除杂质的方法和效果。
The results show that the chlorine ion can't change the potential of the solution, but can improve the leaching rate of the chalcopyrite and restrain the wrap of sulfur.
结果表明，氯离子的加入并不能改变溶液体系电位，但对解决硫包裹具有显著作用，可以大大提高黄铜矿浸出速度。
The seepage law of leaching solution has a very important influence on the leaching rate and velocity for the dump leaching technology.
溶液渗流规律对堆浸技术的浸出率、浸出速率具有很重要的影响。
Test results showed that use of ammoniacal solution pretreatment can effectively remove copper, and thus alleviating negative effect of copper on leaching of gold.
结果表明：采用含氨溶液预处理除铜，有效地排除了铜对氰化浸金的影响。
The polysulfide solution is one of non cyanidation systems of gold leaching in which polysulfide ions are the main effective components.
多硫化物溶液是一种非氰化浸金体系，其中的有效成份是多硫根离子。
Compared with conventional heap leaching, bioleaching period and acid amount are reduced, oxidant and leaching agent are saved, and uranium concentration in leaching solution is increased.
与常规堆浸工艺相比较，细菌堆浸新工艺具有浸出周期短，酸用量低，节省氧化剂，降低浸出剂用量，浸出液平均铀浓度高等优点。
A new process of producing electrolytic copper powder from anti-extracting bacterial leaching solution from copper ore of Ziji Mount Gold-Copper Mine was developed.
研究了直接利用紫金山金铜矿的铜矿细菌浸出反萃含铜溶液生产电解铜粉的新型工艺。
Processing conditions of effectively separating indium from the leaching solution of a smelting antimony slag were researched.
研究了从冶炼锑渣浸出液中有效地分离铟与锑、铁的工艺条件；
Precipitation process of the goethite from hot acid leaching solution of zinc concentrate roast dust was investigated.
研究了从锌焙烧烟尘常压热酸浸出液中沉淀针铁矿的过程。
The leaching solution was centrifugalized, and then distilled by headspace analytical method.
浸提液离心后采用静态顶空技术处理。
The basic seepage equation of leaching solution is provided based on the hypothesis seepage flow instead of the true one.
采用假想渗流代替实际渗流，推导了溶液渗流的基本方程。
According to control requirements of uranium leaching solution process, the paper discusses the completion of automation for uranium hydrometallurgy process by using SCADA and PLC.
根据铀浸出液处理过程控制的要求，本文论述了如何用监控组态软件结合PLC可编程序控制器完成对铀水冶的自动控制。
Jarosite process was selected for iron removal due to the characteristics of the solution originated from the reduction leaching of manganese nodules by pyrite in chloride system.
针对酸性氯化物中黄铁矿还原浸出锰结核的溶液成分特点，选择黄钠铁矾法进行了沉淀分离铁的研究。
Study is made on the process for recovering ni and co from the ni and co containing solution prepared from low grade manganese oxide ore by reductive roasting and sulfuric acid leaching.
研究了从低品位氧化锰矿经还原焙烧、硫酸浸出得到的含钴镍原料液中回收钴镍的工艺。
The new process has advantages of high zinc leaching rate, short flowsheet, leaching at normal temperature and pressure and no waste solution, suggesting a wide application field and good prospect.
新工艺锌浸出率高，流程短，可在常温常压下浸出，无废液，具有较广阔的应用前景。
Because of selective leaching of cadmium, Ni, co and Fe ion concentrations in cadmium-rich leach solution are so low that the electrolytic current density of cadmium can be raised markedly.
由于选择性浸出，镉浸出液中的镍钴铁离子浓度很低，电解回收镉时可以提高电流密度。
The effects of the calcine size, leaching temperature, leaching time and solution-solid ration no the leaching rate of the sodium chromate in the chromium calcine are investigated.
结果表明，在试验的浸出条件下，铬焙砂粒度对铬浸出率的影响不显著，铬浸出率随浸出温度升高、液固比增大和浸出时间延长而增加。
The effects of the calcine size, leaching temperature, leaching time and solution-solid ration no the leaching rate of the sodium chromate in the chromium calcine are investigated.
结果表明，在试验的浸出条件下，铬焙砂粒度对铬浸出率的影响不显著，铬浸出率随浸出温度升高、液固比增大和浸出时间延长而增加。
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