查询词典 phosphorite

The residual Pb2+ can be removed by phosphorite to avoid bringing new pollution.(3) It is feasible to produce yellow chrome by using the leachate of chrome slag.

由铬渣中提取的六价铬的方法和试验的影响条件，通过研究证明了利用铬渣淋滤液制取铬黄颜料的可行性。

By the end of 1998, minerals that had been discovered, confirmed and explored included: cyanite, silex ,quartz,xanthoconite, others that need proving up and exploring included: mica, phosphorite, diamond, rutile, crude oil, kalium ore, etc.

至1998年底，发现、探明并已开发利用的矿种有：蓝晶石、硅石、石英砂、黄砂，有待探明和开发利用的矿种有云母、磷矿石、金刚石、金红石、石油、钾矿石等。

Mineralogically, the phosphorite is mainly consist of carbonate fluorapatite.

矿石的结构类型丰富多样，主要为颗粒结构磷块岩和叠层石磷块岩。

Resources and utilization of phosphorite in the United States, Japan and China were introduced, and the idea for the development of phosphorite with ecological process was put forward.

分析了美国、日本、中国的磷资源及利用情况，提出了用"生态工艺学"利用磷矿资源的观点。

It was verified that the particle size of more than 90% of the acidic phosphorite powder was less than 4.227 μm, and more than 90% of activated phosphorite powder was less than 220 nm.

采用扫描电镜观察、X－射线衍射分析、激光粒度测试，证明了90%的酸化磷矿粉粒径为4.227 μm，90%的活化磷矿粉粒径达到220 nm。

REE geochemistry of apatite in phosphorite were studied firstly by detail chemical separation of apatite from other minerals in phosphorite.

利用化学分离的方法对磷块岩中磷灰石的稀土元素地球化学做了详细的研究。

As the main base of phosphorite mine in Guizhou Province,the exploitation scope expanding of Wengfu phosphorite mine has had a great impact on the ecological environment.

由于贵州省磷矿具有埋藏浅、易开采、质量高的特点，其磷矿主要采用露天开采的方式，对磷矿山生态环境的破坏程度极大。

The function mechanism among the minerals and floatation drugs had been studied with the way of IR and academic calculation, which pointed out that absorption of G-4 on the surface of phosphorite belonged to physical and chemical types, but the chemical one was in the highest flight. Absorption of amine collector named GE-609 on the surface of quartz belonged to electrostatic and physical type. Distilled water could hardly wash the GE-609 down from the surface of quartz. Leading component of S-721 was the concentrated compound of naphthol sulfonic acid and formaldehyde. The compound had a stronger affinity to the Mg~(2+) on surface of dolomite than the Ca2+ on surface of phosphorite, which is the essential reason in the separation of phosphorite and dolomite. The leading components of soluble glass in function were HSiO3 hydronium and F^SiC^ colloid granule.

通过红外光谱测定以及理论计算的方法研究了选矿药剂与矿物间的作用机理，研究表明：脂肪酸捕收剂G-4对胶磷矿的捕收作用是以化学吸附为主、化学吸附与物理吸附共同作用的结果；胺类阳离子捕收剂GE-609在石英表面的吸附属于静电物理吸附，但很难用水洗的方法使GE-609从石英表面脱附；S-721主要成分为萘酚磺酸与甲醛的缩合物，萘酚磺酸与甲醛的缩合物对白云石表面Mg~(2+)的吸附明显强于对胶磷矿表面Ca~(2+)的吸附，这是胶磷矿与白云石分离的根本原因；水玻璃溶液中对石英起抑制作用的主要组分是HSiO_3~-和H_2SiO_3胶粒，水玻璃除对石英起抑制作用外，对矿浆还具有一定的分散作用。

Sequential leaching experiments indicate fluorine in carbonate rock, phosphorite and Mo-Ni ore layer occurs principally in dissolvable forms: water-soluble, associated with carbonate or phosphorite, so fluorine in which rocks have high chemical mobility at surface conditions. Fluorine in siliceous rock, black shale and carbonaceous slate mainly occurs in undissolvable forms, which are inert at surface conditions.

氟在碳酸盐岩、磷块岩、钼、镍等多元素富集层及部分硅质岩中主要以水溶态、碳酸盐结合态等易溶形式存在，其在自然条件下的化学活动性强；而氟在碳质板岩、黑色页岩及大部分硅质岩中主要存在于难溶矿物中，其化学活动性较弱。

The Baideng phosphorite deposit is of shallow-sea facies; while the Qinglongshao phosphorite belongs to continental facies.

白登磷矿是我国重要的浅海相磷块岩矿床，而青龙哨磷矿是我国重要的陆相磷块岩矿床。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。