| 1. | Many iron minerals are only slightly magnetic .
不少铁矿物只有微弱的磁性。 |
| 2. | Application of selective magnetic coating technique recovering fine iron minerals from quartz corundum
回收石英刚玉中的细粒铁矿物 |
| 3. | Abstract : the reasonable processing technology for recovering iron minerals from tailings of low intensity magnetic separation was studied . techno - economic evaluation shows that spiral separation - belt magnetic separation flowsheet is optimal one
文摘:分析了回收半氧化铁矿石弱磁选尾矿中的铁矿物的工艺流程，通过技术经济的比较，提出了合理的选别工艺，达到了回收铁矿物的目的。 |
| 4. | The colloid adhered the surface of jadeite , formed limonite after dehydrating and crystal . then the secondary color came into being owing to the limonite subsidence . the iron ion which are needed for the secondary color mainly came from outside
对于硬玉所占比例比较大的翡翠，翡翠次生色形成所需的铁主要来自于外界，对于含有富铁矿物的硬玉，既有自身析出的铁，又有来自外界的铁。 |
| 5. | Whereas the rocks in the ancient heavily cratered terrains were basaltic , the younger rocks of the northern lowlands resembled a more highly evolved type of lava called andesite : they contained more glass , more silica - rich minerals and fewer iron - bearing minerals
古老、充满坑洞的地区，岩石属于玄武岩，但北方低地较年轻的岩石却类似一种更高度演化、称为安山岩的熔岩：它们含有较多玻璃质、较多富矽矿物、以及较少含铁矿物。 |
| 6. | Influences of ph values , ferrous minerals ( reduced iron powder or magnetite ) , bentonite , concentration of cations and anion ( fe3 + , fe2 + and co32 - ) on the distribution coefficient , kd , were studied . the sorption mechanism of 99tc on granite was discussed by the desorption method of adding h2o2 into desorption solvent . based on the diffusion coefficient measured and the solution of the diffusion equation , the distance of tc diffusion after ten thousand years was predicted
本文分别在大气和低氧条件下，研究了tc在花岗岩上的吸附和扩散，包括溶液的ph 、含铁矿物(还原铁粉、 fe3o4 ) 、膨润土、阴阳离子的浓度( co32 - 、 fe3 + 、 fe2 + )对tc在花岗岩(石英、黑云母)上吸附kd值的影响；在解吸剂中加入h2o2 ，对tc进行解吸，探讨了其吸附的机理；将扩散系数代入扩散方程的解析解，预测了10000年后， tc扩散的距离。 |
| 7. | An iron - containing material with an iron grade of over 20 % can be recovered from magnetic separation tailings of liuling iron mine by gravity method . this material can be used instead of partial clayey material to produce portland cement so as to reduce the mine tailings discharge amount to 43 . 52 % , to raise the iron recovery from 70 . 89 % to 84 . 62 % and to reduce the iron ore powder consumption in raw cement mixture and the energy consumption of raw material grinding
用重选法从刘岭铁矿磁选尾矿中回收铁矿物，可获得铁品位大于20 %的含铁物料，用此物料代替部分粘土质原料生产硅酸盐水泥，使矿山尾矿排放量减少至43 . 52 % ，铁的回收率由70 . 89 %提高到84 . 62 % ，并且减少了水泥生料配料中铁矿粉的用量，降低了生料粉磨能耗。 |
| 8. | Abstract : an iron - containing material with an iron grade of over 20 % can be recovered from magnetic separation tailings of liuling iron mine by gravity method . this material can be used instead of partial clayey material to produce portland cement so as to reduce the mine tailings discharge amount to 43 . 52 % , to raise the iron recovery from 70 . 89 % to 84 . 62 % and to reduce the iron ore powder consumption in raw cement mixture and the energy consumption of raw material grinding
文摘:用重选法从刘岭铁矿磁选尾矿中回收铁矿物，可获得铁品位大于20 %的含铁物料，用此物料代替部分粘土质原料生产硅酸盐水泥，使矿山尾矿排放量减少至43 . 52 % ，铁的回收率由70 . 89 %提高到84 . 62 % ，并且减少了水泥生料配料中铁矿粉的用量，降低了生料粉磨能耗。 |
