查询词典 pyrite

Native sulphur is the main source of sulphur for the sulphuric acid industry, followed by sour gas (natural gas containing hydrogen sulphide) and pyrite.

天然的硫是硫酸工业的主要来源，其次是酸气和黄铁矿。

Utilization status, existing major problems and development trend in future for sulphur resources in our country are introduced. The paper also puts forward to take pyrite resource as main raw material for producing sulphur acid, and developing large size suchniques needs to be imported, but a single series can be designed in home based on actual condition.

介绍了我国硫资源利用现状、存在的主要问题、硫资源利用的发展趋势，提出今后硫资源利用应以稳步发展硫铁矿制酸为主，并向装置大型化方向发展，但规模局限於20万~5万t/a，且关键部分要技术引进，并结合实际，适时进行单系列国产大型化设计，真正发挥硫资源利用的综合效益。

In this study,an electron microprobe analyzer was used to map the spatial distribution of "invisible" gold and submicron to micron size visible gold particles in arsenian pyrite in a high grade ore sample from the Shuiyindong Carlin-type gold deposit, Guizhou ,China.

采用电子探针背散射电子图像、波谱和能谱分析技术，对贵州水银洞卡林型金矿床原生富矿石中的含砷黄铁矿Au、As等元素含量及其分布规律进行了系统研究。

Their characters include (1) the particular configuration of the MT structures;(2) the obvious interface with rich organic matter and pyrite between the MT ribbon cracks and the host rock;(3) the host rocks are characterized by nonstromatolitic micrite limestones with few liminites;(4) the special macroscopic fossils of algae which were simultaneously developed with the MT structures.

这些特征包括：(1)臼齿状构造特别的形态学特征，(2)由微亮晶所充填的臼齿状裂缝具有明显的边界（以富集残余有机质和黄铁矿为特点），(3)臼齿状构造的宿主岩石是不发育叠层石和纹理化构造的隐晶质泥晶灰岩，(4)与臼齿状构造常常共生的极为特别的宏观藻类化石等。

Mineral compositions of phosphate concretions mainly contain apatite, quartz, calcite, barite, pyrite and organic matter, etc.

磷结核的矿物组成主要有磷灰石、石英并含有方解石、白云石、重晶石、黄铁矿有机质等。

Amorphous or crystalline concretions of pyrite and marc marcasite of variable shape and size have been found in some coal seams in the Permian-Carboniferous Yuemengou Coal Series in Taiyuan, Shanxi.

在太原西山石炭—二迭纪月门沟煤系的某些煤层中，发现有不同形状和大小的硫化铁矿物结核。这种结核有非晶质和结晶质的。

The results indicated that the metal values Mn、Cu、Ni、Co contained in nodules could be extracted effectively in dilute chloric acid solution with the addition of pyrite as reductant, which exists widely in the nature.

结果证实稀盐酸中采用自然界广泛存在的黄铁矿作还原剂可以有效地浸取锰结核中的有价金属Mn、Cu、Ni、Co，黄铁矿中的硫最终将氧化生成硫酸根。

The depressing ability of the macromolecule organic depressants can be improved by the increase of their D.S.. The high D.S. CPVA and CPEG show strong depressing ability to calcite, while CPEG indicates strong depressing ability to diaspore, and HPAM to pyrite.The depressing mechanism of organic depressants was confirmed by the measurements of zeta potential, contact angles, adsorption capacity and IR spectrum.

利用动电位、接触角、吸附量和红外光谱等测试方法和手段，探讨了抑制剂的作用机理：苯氧乙酸类小分子抑制剂与方解石之间可发生较强的化学作用，可以选择性地吸附在方解石表面，使捕收剂发生解吸或阻止捕收剂在矿物表面的吸附而使矿物受到抑制；大分子抑制剂则主要是依靠亲固基吸附在矿物表面，再利用其长链的强亲水性而使矿物受到抑制。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。