矾

The study indicates that full propagation of Thiobacillus ferrooxidans in the solution is beneficial to the formation of jarosite.

利用X-射线衍射仪、扫描电子显微镜和能谱分析仪等技术对两种实验获得的黄钾铁矾进行定性分析和形貌观察。

When ferric iron concentration was high enough in the solution, jarosite was produced.

当溶液中Fe3+浓度达到一定程度的时候形成黄钾铁矾沉淀，而溶液的pH值会先变大后变小，维持在2.0～2.5之间。

The preparation of Ni-Zn ferrite from sodium jarosite residue was studied.

摘 要：对黄钠铁矾渣制备复合镍锌铁氧体进行研究。

The results show that when the mass ratio of sodium jarosite residue to anthracite is 5∶1, reduction roast lasts at 800℃for 0.5 h, leaching is carried out at 70℃for 40 min by 0. 5 mol/L H2SO4 with liquid-solid ratio of 7∶1, 93% of both iron and nickel can be leached out.

研究结果表明：当黄钠铁矾渣与无烟煤按质量比为5∶1均匀混合，在800℃还原焙烧0.5 h，焙烧渣用0.5 mol/L硫酸溶液按液固比7∶1在70℃浸出40 min时，渣中93%的铁和镍进入浸出液中。

After detail analysis of current several iron removal methods, it was proved that the jarosite could not only be used for iron deep purification, but also release the accumulation of sulfate, which was due to the oxidation of pyrite.

在对现行诸多除铁方案进行分析后，指出了黄钠铁矾法不仅可以从锰结核浸出氯化物溶液中深度净化除铁，而且可以同时除去黄铁矿氧化生成的大部分硫酸根，这样无疑避免了硫酸根在氯化物体系中的积累。

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.

摘 要：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。

Aiming at some defects and shortages existing in conventional deferrization processes,such as jarosite,goethite and spray processes,in zinc hydrometallurgy process and using new movements abroad for reference,the study on new technology for removing iron by phosphate has been carried out and satisfactory results have been achieved.

针对湿法炼锌过程中，常规的铁矾法、喷淋法等除铁工艺存在渣量大、周期长、能耗高以及渣二次污染等缺陷和不足，并借鉴国外除铁新动向，进行了磷酸盐除铁法的试验研究，获得了较满意的结果。

Continuous culture of immobilized Acidithiobacillus ferrooxidans can be used to remove H2S and SO2. In order to reduce the negative effect of jarosite which formed during the oxidation of Fe(superscript 2+) by immobilized cells, the changing of initial pH and the ingredient in 9K medium were tried.

该固定化细胞的连续培养技术可以用于处理H2S、SO2，为了减少固定化细胞培养过程中带来许多不利效应的黄铁矾沉淀[NH4Fe3(SO4)26]，采取了改变初始pH值和目前普遍采用的9K培养基中的(NH4)2SO4浓度，K2HPO4浓度三种方法。

NASA's principal investigator for the rover mission, Steve Squyres, and his colleagues report in the journal Science that the sedimentary rocks analyzed by Opportunity contain sulfate salts and a mineral called jarosite - harsh chemicals that are also found in briny water here on Earth.

此次漫游者任务的主要航天局调查员 Steve Squyres 和他的同伴在《科学日志》上发表道，"机遇号"分析的水成岩物质含有硫酸盐的成分以及一种叫做黄钾铁矾的矿物，这种化学物质具有很强刺激性，在地球的咸海水中也有这种物质。

Continuous culture of immobilized Acidithiobacillus ferrooxidans can be used to remove H2S and SO2. In order to reduce the negative effect of jarosite which formed during the oxidation of Fe2+ by immobilized cells, the changing of initial pH and the ingredient in 9K medium were tried.

该固定化细胞的连续培养技术可以用于处理H2S、SO2，为了减少减少固定化细胞培养过程中带来许多不利效应的黄铁矾沉淀 NH4Fe3(SO426），采取了改变初始pH值和目前普遍采用的9K培养基中的(NH4)2SO4浓度，K2HPO4浓度三种方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。