浮选

By systemic studies in the lab, the optimal technical and operational conditions had been determined as follows: the dosage of duodenary amine of 100 g/t. the pressure of circulating pulp of 0.045 MPa, the concentration of pulp of 43%, the floatation time of 7-8 min.

通过在实验室浮选柱系统上的试验，优化确定了如下工艺和操作参数：十二胺药剂用量100g/t，循环矿浆压力0.045 MPa，矿桨浓度43%，浮选时间7~8 min。

It has many virtues,such as small volume, large capacity, small cut size and high floatation speed.

它具有体积小、处理能力大、有效浮选粒度下限小以及浮选速度快等优点。

The paper gives a detail analysis on some factors affecting on size of flotation bubble such as property of mineral water mixture, bubble generation mode and device and frother etc.

文章从浮选矿浆性质、发泡方式及装置、起泡剂等方面，对浮选气泡大小的影响因素进行了详细分析。

Among several neutral oils, transformer oil shows the best agglomeration effect. For the complex tailings, in which over 90% of molybdenum distributed in the range of -0.038 mm, the optimal dosage of transformer oil and frother was about 12 kg/t and 0.5 kg/t respectively, and the least agitation time and rate should above 3 min and 400 r/min, respectively.

结果表明，在众多中性油中，变压器油表现出了较好的油团聚浮选效果，对于钼金属分布率高于90%的-0.038mm粒级的浮选尾矿，其合适用量需达到12kg/t左右，与之配合的起泡剂用量在0.5kg/t左右，油团聚时间及搅拌强度分别需达到3min和400r/min以上。

Among them,the major transformations what against the sulfur flotation include: concentrating of zinc tailings,adding acid,non-featured operations,using 11# oil as frother ,the remodelling of flotator,etc.

其中，针对硫浮选进行的改造主要有锌尾浓缩、加酸、无精选作业、起泡剂11#油的应用以及浮选机改型等等，取得了显著的效果。

The statistically designed experiment studied the effects of six factors,i.e.,grainsize,mode of the generation of airbubbles,pH value of the pulp,acid treat-ment,quantity of the frother used,andtemperature of the pulp.

本文尝试用统计分析的方法，综合研究了影响黑钨矿浮选的六个主要工艺因素：(1)粒度；(2)浮选气泡产生方式；(3)矿浆pH值；(4)起泡剂用量；(5)矿物是否预先经酸处理；(6)矿浆温度。

RB_3 frother ; Flotation of lead-zinc sulphide ; Pyrite flotation.

RB＿3起泡剂；硫化铅锌矿浮选；黄铁矿浮选

Through thermodynamic calculation and electrochemical analysis of multiple redox reactions on the minerals of galena, sphalerite and pyrite in different system, it could be found that pulp chemical environment in which hydrophobe of collectorless flotation produced was beneficial to reduce collector dosage in existing flotation system; electrochemical analysis on sphalerite had been engaged; and pulp chemical environment of OPF for lead-zinc-iron sulfide minerals and relevant selective measure for collector and modifer were established.

通过对方铅矿、闪锌矿、黄铁矿在水体系、调整剂体系、捕收剂体系中由局部电池造成的多种氧化—还原反应的热力学分析和电化学测试，补充和完善了铅锌铁硫化矿浮选电化学理论。提出了矿物表面无捕收剂疏水体生成的矿浆化学环境有利于降低现有浮选体系中捕收剂用量的观点；成功地进行了闪锌矿的电

This paper studied the fundamental flotation behavior s of the jamesonite and marmatite and the mechanism and the model of NaCN in the Pb-Zn separation.

研究了脆硫铅锑矿与铁闪锌矿两种矿物的基本浮选行为以及铅锌浮选分离中NaCN的作用机理和模型。

This paper studied the fundamental flotation behaviors of the jamesonite and marmatite and the mechanism and the model of NaCN in the Pb-Zn separation.

研究了脆硫铅锑矿与铁闪锌矿两种矿物的基本浮选行为以及铅锌浮选分离中NaCN的作用机理和模型。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。