查询词典 leaching sulfide

To a certain extent, the oxidation of sulfide and releasing of heavy metals were controlled by the chemical characteristics of hydrological environment. This process gave rise to the formation of the metastable secondary metal-bearing minerals on the surface of sulfide in the sediment.

河流水体环境化学性质影响了沉积物中硫化物氧化作用的氧化速率，导致硫化物表面亚稳定的次生富重金属矿物相的形成，对水体质量的自净有一定的作用。

Laba garlic, the formation of green pigment and red onion with a certain degree of similarity, diallyl sulfide and propylene oxide exists at the same time, Green took place, there is Propylene oxide sulfide, there is no oxidation of allyl sulfur objects when changes occur red.

腊八蒜绿色素的形成与洋葱红变具有一定的相似性，烯丙基与丙烯基硫氧化物同时存在时，就发生绿变，存在丙烯基硫氧化物，不存在烯丙基硫氧化物时，就发生红变。

Zinc sulfide nanoparticles with different sizes were synthesized by a unique precipitate dissolution method using zinc alkyl xanthate and sodium sulfide as zinc and sulfur sources, respectively. The samples synthesized were characterized by low temperature nitrogen adsorption and desorption, Transmission Electron Microscope, powder X-ray Diffraction and Fourier Transform Infrared Spectroscopy techniques.

以烷基黄原酸锌和硫化钠分别为锌源和硫源，采用烷基黄原酸锌沉淀溶解法制备了粒度可调、粒径分布比较窄的面心硫化锌纳米粒子，利用比表面积测定、透射电镜、粉末X射线衍射、傅里叶转换红外光谱等方法对合成的硫化锌纳米粒子进行了表征。

Shihu gold deposit in Hebei Province, belonging to pyrite sulfide type,is characterized by multistage mineralization,but the main stage of mineralization is almost coincident with the mass separation of sulfideThe sulfur in sulfide and mineralizing hydrothermal solution is derived from anatectic granitic magma.

河北省石湖金矿属于黄铁矿硫化物型金矿，具有多期次成矿的特点。但金的主要成矿阶段与硫化物的大量析出阶段在时间上基本一致。硫化物及成矿热液中的硫来自深熔花岗质岩浆。从微观结构和晶体学理论上对金的赋存机理进行了讨论。

The optimum conditions of leaching, sulfide precipitation and fluorination precipitation were determined.

确定浸出工艺条件、硫化沉淀和氟化沉淀工艺条件。

Arsenic trioxide was prepared by leaching arsenic sulfide slag in NaOH solution, oxidating with air and reducing with sulfur dioxide.

摘 要：硫化砷渣经氢氧化钠溶液浸出、空气氧化脱硫和SO2还原制备得到As2O3。

Remove water chlorine, hydrogen sulfide, heavy metals and microorganisms, has bactericidal inhibitory effect at the same time, Adjusting the pH of water, the human body balanced leaching of trace elements and minerals required, far infrared technology, will macromolecules Mission water cut into small molecules of water activity.

除去水中的氯、硫化氢、重金属和微生物，具有杀菌抑菌作用，同时，调节PH值，均衡溶滤出人体所需的微量元素和矿物质，远红外线技术，将大分子团水切割成小分子团活性水。

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 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。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。