查询词典 leaching

In order to solving the problem on scarcity of backup resources of the depleted mines in Lujing uranium ore-field and using the existing sub-profitable type of geological reserves, it is suggested that the high grade of profitable type of deposits should be explored around the exhausting mines so that the production of the mines could be profitable by the pithead heap leaching mining method with arrangement groups of both sub-profitable and profitable type of ores.

为了解决鹿井铀矿田危机矿山后备资源短缺问题，完全盘活已有的次经济型地质资源，建议在该危机矿山周边地区寻找品位较富的经济型矿床，通过次经济的与经济的矿石贫富搭配，采用坑口堆浸法工艺，确保矿山生产赢利。

The invention of long poncho hat blocked rainwater leaching in the face for easy observation.

本发明长帽檐雨披挡住了淋在脸上的雨水，便于了望。

The molten salt leaching method to extract potassium from potash feldspar is studied in this paper.

研究采用熔盐浸取法从钾长石中提取钾的工艺，分别选用不同阴离子的钙盐，比较出选择不同助熔剂时其阴离子对钾长石中钾溶出率的影响，确定了最佳助熔剂为CaC l2。

The leaching mechanism of niobium from a refractory niobium-tantalum ore by concentrated potassium hydroxide was studied.

实验研究了难分解铌钽矿在高浓度氢氧化钾溶液中浸出过程的机理。

In this method, the row material is manganous sulfate, which is preparing from leaching solution of pyrolusite.

论文讨论了软锰矿浸出液的净化除杂问题，选择了水解沉淀法除去浸出液中的铁、铝。

The leaching process was researched to produce manganese sulfate from pyrite and pyrolusite, When the reaction was proceeded under the conditions: temp.

本文试验研究了用软锰矿和硫铁矿湿法生产硫酸锰的生产工艺。当反应温度大于95℃。

Some cellulose was used as reductant to reduce pyrolusite of low grade, and manganese sulfate was obtained by leaching the reaction product with sulphuric acid.

用纤维素作还原剂还原低含量软锰矿，再用硫酸浸取制备了硫酸锰。

Time 2.5h, ratio of raw material 1:0.71:0.68 (pyrolusite: pyrite: sulfuric acid)and when pH was controlled about 5.4, the leaching out rate of manganese can get to 90％, Through purification and calcium depositing, the quality of the products was conform to GB1662-82, Experiments(100kg grade)were carried out.

时间2.5小时，原料配比为1：0，71：0.68，最终pH值控制在5.4左右，锰浸出率在90％以上。溶液经净化、沉钙，产品质量符合GB1622-86标准。100公斤级扩大试验验证了小试验，结果可靠，产品质量稳定。

Zinc metallurgy is developing rapidly in china and has been the biggest county with zinc metallurgy production. Now the pyrometallurgy in zinc metallurgy techniques was being washed out because of more power consumption and serious pollution. Zinc hydrometallurgy is get zinc from zinc ore concentrate, which contains roasting-leaching-purify-electrolytic deposit in sequence.

我国锌冶金发展迅速，已经发展成为全球最大的锌生产国，但现有的锌冶金生产工艺中火法冶金存在能耗大，污染严重，逐渐被淘汰，而湿法炼锌是将锌精矿经焙烧-浸出-净化-电积获得金属锌。

The results showed that lower concentrations of ethanol-water, higher temperature, longer time, larger cottonseed-meal/solvent ratio comduce to increasing raffinose leaching yield.

结果表明，低浓度的乙醇水溶液、较高的温度、较长的浸出时间、较大的料液比有利于棉籽糖的浸出。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。