Se is a kind of scarce and scatter element, and it is very low-grade ore in mineral.
硒是一种稀少而又分散的元素，矿石中其品位一般都很低。
He also knows that big mining companies prefer mountains of low-grade ore to small, high-grade mines like his.
而且他也知道那些个大型矿产公司更喜欢那些低地势的矿山，而不是他那又小又高的。
The categories of the bacteria and its leaching mechanism are key factors for the bioleaching of low-grade ore.
微生物种类及其作用机理是浸出低品位矿石的关键所在。
The resources of natural rutile in our country is primary low-grade ore, eclogite-type rutile deposit is characterized as large, thick ore body, easy to exploration and mining.
我国天然金红石资源绝大部分为低品位的原生矿石，榴辉岩型金红石床具有规模大，矿体厚，易于勘探和开采等特点。
Rutile resource is rich in our country, but rutile ore grade is low and the product is poor competitive because of its high production cost.
我国天然金红石资源储量较大，但绝大部分为低品位的原生矿石，所以加工成本高，产品缺乏市场竞争力。
It is effectively on accelerating leaching speed of copper sulfide and increasing leaching rate of copper that bacteria ACTS on low grade copper sulfide ore.
利用细菌的作用对低品位硫化铜矿石进行浸出，能有效地促进硫化铜矿物中铜的浸出，提高铜浸出率。
Heap leaching to low grade gold ore in the Northwest District has been proven a profit making method.
采用堆浸法处理低品位金矿石，在西北各主要产金省已取得了很好的经济效益。
This process is a good example and also a feasible way for other similar mines with same problems of low grade ore and diluted resources to follow.
该流程对我国类似资源贫化型矿山低品位矿石的预选，具有较好的借鉴作用。
Sulfuric acid leaching of low grade zinc oxide ore is studied in this paper.
研究了高硅低品位氧化锌矿的硫酸浸出工艺。
The paper introduces the research of mineral processing test of some low-grade copper oxide ore in Yunnan.
本文主要针对云南某地低品位氧化铜矿样进行了选矿试验研究。
The ore structure of Daling Mine is complex in Jilin Nickel Industry Corporation, it is typical low grade difficulty mining deposit.
吉林镍业公司大岭矿矿岩结构复杂，为典型的低品位难采矿床。
Oxidized copper ore from the Tonglushan copper iron Mine, low in copper grade and abundant in mud and alkali gangue, is difficult to concentrate.
铜绿山铜铁矿氧化铜矿石品位低，泥和碱性脉石含量高，属难选氧化铜矿。
Zijinshan Gold Mine is an extraordinarily large one with huge ore reserve, low grade but much better washability.
紫金山金矿是一个储量大、品位低，但可选性极佳的特大型黄金矿山。
In line with the features of accumulative bauxite ore, it is put forward and proved that it is an economically efficient way to solve the utilization of low grade accumulative bauxite by ore blending.
结合堆积型铝土矿的特点，提出并论证了通过配矿方式解决低品位堆积型铝土矿的利用问题是经济合理的办法。
The Mengxing Pb Zn deposit with low ore grade and deep buried is facing the situation of resources exhausted.
勐兴铅锌矿矿石品位低、埋深大，且面临资源匮竭。
The high purity manganese carbonate is prepared by the process of leaching, removing impurities and crystallizing from Guangxi's low grade manganese ore.
采用广西某地低品位碳酸锰矿为原料，以硫酸浸出、浸出液除杂、碳化结晶工艺制备得到高纯碳酸锰产品。
This thesis will discuss the extractable grade of low grade ore according the production state of Jintingling Mining CO, ltd.
就金亭岭矿业有限公司生产现状，对低品位矿石的可回收品位进行了探讨。
Heap leaching to low grade gold ore in the Northwest District has been proven a profit making method. The paper introduces environment protection practices in several mines.
采用堆浸法处理低品位金矿石，在西北各主要产金省已取得了很好的经济效益。
This article describes in detail different ways of treating low grade Manganese ore.
本文就处理低品位锰矿的各种方法进行叙述。
Reasons for resulting in high gold grade of tail water and low gold adsorption rate in the flow sheet of ore dressing are analysed comprehensively.
综合研究分析了生产中出现的尾液金品位高、金吸附率低的原因。
The oxidized copper ore is low copper grade, complex minerals composition, fine-grained dissemination, high oxidation level, and high content of alkaline gangues.
某铜矿石铜品位低，氧化率高，碱性脉石含量高，嵌布粒度很细，属于典型的难处理氧化铜矿。
The Mn recovery is over 80%, a new process of enriching and recovering Mn from low-grade manganese carbonate ore.
采用该工艺的锰回收率达80%以上，是一种从低品位碳酸锰矿富集回收锰的新工艺。
The ultrafine grained titanium iron ore grade is low, particle size distribution and The Ilmenite ore and gangue titanium and titanium ordinary pyroxene magnetic proportion.
该细粒级钛铁矿品位低、粒度分布不均匀，并且钛铁矿和脉石中的普通辉石磁性和比重相差不大。
The effects of temperature, time, air frequency and different fluxes on the recovery rate of molybdenum for oxidation roasting on low grade molybdenum ore are discussed.
氧化焙烧是解决低品位复杂难选菱铁矿的有效前处理工艺，氧化焙烧参数对焙烧效果影响很大。
Therefore the biological method to treat low-grade copper and nickel sulfide ore is effective and practical.
细菌浸出法处理低品位硫化铜镍矿是行之有效的方法。
It is a new ore dressing process to separate low grade, coarse-size Tin ore by jig, and it is advanced technology.
用跳汰机对低品位锡矿进行粗粒抛废处理是一种选矿新工艺，其技术先进。
A study for leaching of a low grade and difficult to separate copper ore was performed by using ammoniacal pressure leaching method.
用加压氨浸的方法，对某低品位难选离析铜矿进行了浸出研究。
It's a mid scale and its ore belongs to low grade structural altereds tyle, limonite, pyrite are mainly gold carriers.
矿石以低品位构造蚀变岩型为主，褐铁矿、铁矿是主要的载金矿物。
Study is made on the process for recovering ni and co from the ni and co containing solution prepared from low grade manganese oxide ore by reductive roasting and sulfuric acid leaching.
研究了从低品位氧化锰矿经还原焙烧、硫酸浸出得到的含钴镍原料液中回收钴镍的工艺。
Study is made on the process for recovering ni and co from the ni and co containing solution prepared from low grade manganese oxide ore by reductive roasting and sulfuric acid leaching.
研究了从低品位氧化锰矿经还原焙烧、硫酸浸出得到的含钴镍原料液中回收钴镍的工艺。
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