查询词典 leaching

The leaching rate of alumina is over 88%, and the alkali leaching filter liquor can be used to prepare aluminum hydroxide and alumina.

氧化铝的溶出率大于88%，碱浸滤液为高苛性比铝酸钠溶液，可用于制取氢氧化铝和氧化铝产品。

Based on analysis on the dosage of sodium cyanide and research on its leaching mechanism in gold concentrate leaching,a new technique that the mixture of ammonium carbonate and ammonium hydroxide can reduce the dosage of sodium cyanide is put forward.

通过对氰化浸出过程氰化钠消耗情况分析，在进一步研究金精矿氰化浸出机理的基础上，提出了采用碳酸铵、氢氧化铵混合试剂降低氰化钠用量的新工艺。

5 kinds of paddy soil treatments were studied, then each microorganism biocoenosis was extracted or bacterial strain was dissociated. Artificial synthesis ferric oxide was considered only electron acceptor, which inoculated soil leaching liquor or bacterial strain with reduction function in mineral salt culture system under anaerobic constant temperature condition. After different temperature treatments towards leaching liquor, temperature was controlled and AQDS added into culture system in order to discuss the effect of temperature and AQDS on ferric oxide microorganism reduction process.

采用5种水稻土为供试材料，分别提取微生物群落或分离铁还原菌株；以人工合成氧化铁作为惟－电子受体，在无机盐培养体系中接种土壤浸提液或具有铁还原功能的菌株，厌氧恒温培养；通过对接种液的不同温度处理(40， 50， 60， 70℃)、对培养温度的控制（30和50℃）以及向体系中添加AQDS，探讨温度及AQDS对氧化铁微生物还原过程的影响。

The needed potential for the oxidative dissolving of chalcocite increases gradually with the decrease of Cu/S ratio in this mineral during leaching of chalcocite. When chalcocite changes fully into covellite the needed potential for leaching to produce element sulfur and Cu〓 maintains unchangeable. The mixed culture of thiobacillus ferrooxidans was separated from a acid mine drainage, During culturation of bacteria there is following relation between the potential of solution and the ratio of /, E=0.64+0.0791g {/}.

绘制了Cu-S-H〓O系和Cu-S-Cl-H〓O系的电位-pH图，计算分析后得出在含Cl〓体系中浸铜时不会形成固态CuCl的结论；在辉铜矿氧化溶解时，固相的铜硫比逐渐降低，溶解所需的电位逐渐升高，到完全转化为铜蓝时，其氧化溶解产生元素硫和Cu〓所需的电位不再升高。

The latter is controlling step in BEGL. The leaching of MnO2 in this system is dependent on the leaching of chalcopyrite.

MnO2的浸出在本研究的系统中是被动的，如果黄铜矿的浸出还能进行，MnO2的浸出就能持续。

Leaching test and reaction thermodynamic analysis were made of the enhancement of the dump leaching of chalcopyrite by pyrite.

进行了黄铜矿排土场中黄铁矿促进黄铜矿浸出的反应热力学分析及浸出试验。

The later is controlling step in BEGL The leaching of MnO2 in this system is dependent on the leaching of chalcopyrite. If the reaction of chalcopyrite can be performed, the reaction of MnO2 will continue.

MnO2的浸出在本研究的系统中是被动的，如果黄铜矿的浸出还能进行，MnO2的浸出就能持续。

By using competitive adsorption of activated carbom to remove unfavorable influence of carbon in carbonaceous gold concentrate on leaching process, the leaching rate of gold concentrate can be improved to 88% as compared with 10%by direct cyanidation.

本文论述了利用活性炭竞争吸附作用，消除含炭金精矿中炭在浸出过程中的影响，使金精矿的浸出率可由直接氰化的10％提高到88％。

The experimental reseach of gold leaching of hot-press acid leaching residues by ammmoniacal cyanide process and the effects of various operation condition on gold extraction have been investigated in this paper.

对氨氰法浸取含铜热压酸浸渣进行了工艺试验研究，详细地考查了各操作条件对金银浸出率的影响。

Under the same pressure gradient, the seepage velocity of leaching solution well increases with the intensity of positive electric field, and decreases with the negative electric field. The seepage diffusibility of leaching solution and its wetting ability to fractured rock mass can be enhanced or weakened by the electric field.

在同等压力梯度下，受地电场作用的裂隙岩块中溶浸液渗流速度随正向电场强度增加明显增大，随反向电场强度增加明显减小；地电场能够强化或者减弱裂隙岩块中溶浸液的渗流扩散能力和溶浸液对岩块的润湿作用。

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