锑

In the paper, some factors influencing the effect of reduction including the anodic material, the cathodal material, the area ratio of cathode to anode and the kind of electrolyte have been investigated and screened out. The result showed that under the same reduction conditions, the reduction of Cr6+ has better effect to use lead-antimony alloy as anode, iron plate as cathode, which area ratio is 7:1 and potassium sulphate as electrolyte.

本文首先对影响电解还原效果的阳极材料、阴极材料、阴阳极面积比和支持电解质加入的种类等因素进行了研究筛选，结果表明：在同样电解还原条件下，实验中阳极采用铅-锑合金，阴极采用铁板，阴阳极面积比取7∶1，支持电解质取为硫酸钾时，具有较好的Cr~(6+)还原效果；同时在采用铅-锑合金作阳极的条件下，通过正交实验，对影响直接在碱性介质中电解还原低浓度含铬废水的其他因素进行了研究，即研究了在电化学还原过程中，Cr~(6+)的初始浓度、极板间距、支持电解质的加入量、搅拌情况等因素对还原效果的影响程度，确定出了主要的影响因素。

Using 60% high concentrated Sb2O5/H2O colloid as a raw material, a method for preparation of flame retardant Sb2O5 hexamethylene ketone colloid was studied.

胶态Sb2O5是锑深加工产品，具有优良的阻燃性能，是锑系阻燃剂中最好的一个品种，也是近年来日、美系阻燃剂中发展较快的一个品种[1～2]。

Direct separation of lead and antimony from jamesonite by oxidizing volatilization roasting, with addition of one kind of catalyst; in addition, it discusses separately the factors that affect lead and antimony separation results under such process.

本试验研究了一种新工艺，通过加入一种催化剂，对脆硫铅锑矿进行氧化挥发焙烧，实现铅锑的一步分离；同时，对该工艺下影响脆硫铅锑矿铅锑分离效果的因素也分别进行了讨论。

When the potential increased to about 0.75V, there is obvious oxidation peak. The test results show that there are PbD2 and SbOD formed on the surface of jamesonite.

在乙硫氮存在时，从0.35V开始乙硫氮与脆硫锑铅矿相互作用明显，电位增加到0.75V附近存在明显的氧化峰，试验结果表明在脆硫锑铅矿表面有PbD2、SbOD形成产生。

The results show that jamesonite and pyrrhotite have good floatability in the pH range of 2-10 and marmatite has good floatability in the acid and it is difficult to separate these minerals. In the pH range of 6-8, the separation of jamesonite and pyrrhotite, marmatite is possible when using mercaptoacetic acid and mercaptoethanol as depressants. In case of the presence of Cu2+ ion, however, it is difficult to separate the three minerals. Infrared spectrum demonstrates that there are a number of function groups such as —SH,—COOH,—OH in the molecular structure of depressant.

结果表明：用丁黄药作捕收剂，脆硫锑铅矿和磁黄铁矿在pH 2~10范围内都有良好的可浮性，铁闪锌矿在酸性条件下可浮性好，三者分离困难；在pH 6~8之间，采用巯基乙酸和巯基乙醇作抑制剂，脆硫锑铅矿与磁黄铁矿和铁闪锌矿的分离是可能的；但铜离子存在时， 3种矿物之间的选择性分离是难以实现的。

Electrochemical behaviors on the surface of jamesonite in an acidic solution of pH4.0 buffer solution containing diethyl dithiocarbamate were investigated by the methods of cyclic voltammetry and AC impedance.The changes of the reactions,electrochemical adsorption,passivation action,electrochemical impedance and interfacial capacitance on jamesonite were discussed under the different conditions of electrode potentials.

用循环伏安和交流阻抗法，研究了脆硫锑铅矿在含乙硫氮的pH 4.0缓冲溶液中的表面电化学行为，讨论了在不同电位下脆硫锑铅矿表面的反应、电化学吸附、钝化作用、电化学阻抗、微分电容的变化。

No tetracthyl thiuram (TETD or D2) molecule formed by oxidation on the surface. At the potential from -0.25 V on, the chemical adsorption of jamesonite occurred. In the presence of diethyldithiocarbamate, the interaction between jamesonite and diethyldithiocarbamate became obvious from 0.35 V on.

采用循环伏安电位扫描研究方法，研究了乙硫氮在脆硫锑铅矿表面的电化学作用机理，在其表面没有氧化形成四乙基二硫化秋兰姆（TETD或D2）分子；电极电位从－0.25V左右开始就在脆硫锑铅矿产生了化学吸附。

When the temperature of a substrate is 250 DEG to 650 DEG C, the proportion of antimony doping to ZnO is controlled by adjusting the carrier gas flow rate of antimony metallorganic and zinc metallorganic to grow p type ZnO.

在衬底温度为250℃～650℃时，通过调节锑的金属有机物与锌的金属有机物源的载气流量来控制锑掺入ZnO的比例进行p型ZnO的生长。

The method is characterized in: with antimony metallorganic as the doping source of p type ZnO, antimony doping p type ZnO film is prepared by metal organic chemical vapor deposition.

其特征是采用锑的金属有机物做为p型ZnO的掺杂源，利用金属有机物化学气相沉积方法制备锑掺杂p型ZnO薄膜。

It is demonstrated that at the temperature of 40°C, the Sb_2O_3 nanorods with different lengths (2~50μm) and diameters (20~1000 nm) would axially self-assemble into multisegmented coaxial nanowires by an oriented attachment assisted end-to-end self-assembly process.

研究表明，在40摄氏度下，不同长度的(2至50微米)和直径(20至000纳米)的三氧化二锑纳米棒，通过&头碰头&的&定向接触&的自组装过程，沿轴向自组装成三氧化二锑多段同轴纳米线。

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。