浮选

Key words: collophanite; mineral beneficiation; flotation; adoption of low grade thermal energy in sulfuric acid plant; reducing steam consumption

胶磷矿；选矿；浮选；硫酸低位热能利用；降低蒸汽消耗

To the collophanite of certain region, Liaoning Province, the content of P_2O_5 was 19.50% and MgO was 6.87%. Using MG as collector to reversely float dolomite, its concentrate can be upgraded to 24.68%(P_2O_5), and the P_2O_5 grade of concentrate of sodium oleate as collector was only 21%. Simultaneity, the recovery of P_2O_5 of concentrate was 83.20%; the tailing contained P_2O_5 only 10%, it obviously declined compareing with sodium oleate.

对于辽宁某地胶磷矿(原矿含P_2O_5 19.50％，MgO 6.87％)，使用MG药剂及单一反浮选工艺，可获得P_2O_5品位24.68％的精矿，较传统的油酸钠提高约3个品位，磷回收率83.20％，而尾矿P_2O_5品位仅为10％左右，比油酸钠等的尾矿P_2O_5有明显下降。

The photochemical degradation of four typical fatty amine flotation collectors, decyl propyl ether amine, dodecyl propyl ether amine, laurylamine, and stearylamine, in water was studied.

对水体中脂肪胺阳离子浮选捕收剂（癸烷基丙基醚胺、十二烷基丙基醚胺、十二胺和十八胺）的降解方法与效果进行了研究。

This paper drawed lessons from the advanced techniques(Fenton oxidation, photocatalytic oxidation, photochemistry oxidation and microorganism-decomposing method)in water processing to study the degradation effect and regulation of the typical fatty amine flotation collectors in water body, which mainly aimed at decyl propyl ether amide, dodecyl propyl ether amide, laurylamine and stearamine.

本文借鉴水处理中的先进技术（Fenton试剂氧化法、光催化氧化法、光化学氧化法和生物法）来研究水体中典型脂肪胺浮选捕收剂的降解效果与规律，主要针对癸烷基丙基醚胺、十二烷基丙基醚胺、十二胺和十八胺。

Cation group has the capability of charge neutrality and this would make oily wastewater demulsify and remove oil easily. Hydrophobic group would improve hydrophobic-oleophilic nature of the oil granule. Simultaneously, wetting reversed agent would change wetting performance of oil granule, enhance conglutination capability between air bubble and oil granule. And Frother would form bigger foam layer on the water, so it could prevnt granule with air bubble from rolling downward.Using the hydrophobic polymeric flocculant as one of ingredients for flotation agent formula, the flotation agent has good treatment effect.

浮选剂配方中的疏水性高分子絮凝剂分子链上带有的阳离子基团起到电中和作用，使含油污水易于破乳除油，而疏水基团能增强颗粒的疏水性能；润湿反转剂能改变颗粒的润湿性，增强气泡与颗粒的粘附能力；起泡剂在水面能形成强度较大的泡沫层，起阻止带气絮粒向下翻动的作用。

The method can reduce greatly the job amount of fine milling, the ore milling cost and power consumption and raise alumina recovery rate, and is economically beneficial compared with available foam floating desiliconization technology.

本发明的方法，大大降低了细磨作业量，降低了磨矿费用和能耗，有效地提高了氧化铝回收率，与已有的泡沫浮选脱硅技术相比，经济效益显著。

Flotation reagent ; desulphuration and deashing ; selectivity ; coal pyrite

浮选药剂；脱硫降灰；选择性；煤系黄铁矿

So some researches on the microbial pretreatment and floatation desulphurization in coal are carried out.

为此，我们借助燃煤微生物预处理与浮选相结合的工艺来进行脱除煤中黄铁矿硫的研究。

Finally, three practicable means to control the potential of mineral particles regularly and electrochemically have been put forward.

最后，研究了电化学调控浮选存在的主要困难，提出三种解决的方案。

The difficulty to control the potential of the mineral particles electrochemically is discussed and practicable measures to break down the technical barrier are proposed.

本文提出的测定电极过程热效应和接触角的新方法不仅适用于浮选电化学，还适合于研究其它的各类电极过程。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。