硫化物的

The stability of alkaline earth sulfides can be improved by two methods, one is by coating with fluoride or oxides, and another is by forming of complex sulfides with Ga.

可通过两种方法改善碱土硫化物的稳定性，其一是通过用氟化物或氧化物的包覆，另一是通过与Ga生成的复合硫化物。

PART 3 : DETERMINATION OF HYDROGEN SULFIDE, MERCAPTAN SULFUR AND CARBONYL SULFIDE SULFUR BY POTENTIOMETRY.

硫化物的测定。第3部分：用电位计对碳酰基硫化物和硫醇，硫化氢的测定

Isotherms of benzothiophene on the activated carbon were separately measured at different temperature, and then the variation of the adsorption of benzothiophene on the activated carbon was discussed with the help of the hard and soft acid and base principle.

结果表明，活性炭表面负载Ag^＋、Ni^2＋、Cu^2＋或Zn^2＋离子，可提高活性炭吸附苯并噻吩硫化物的能力，而活性炭表面负载Fe^3＋或Co^3＋离子，反而降低了活性炭吸附苯并噻吩硫化物的能力，这主要是活性炭表面的酸碱性质发生变化。

The mineralization can be divided into two periods: the early mineralization including layered,layer parallel veined and brecciated ores,and the late mineralization including veinlets and veined ores.

矿床矿石硫化物硫同位素分析表明，早期矿化与晚期矿化具有不同的硫同位素特征：早期矿化硫化物的δ34S值(平均-4.31‰)明显小于晚期矿化硫化物的δ34S值(平均值为-1.83‰)。

It wasfound that the surface structures of the composite microspheres could be altered to acertain extent by simply varying the rate of deposition reaction. It had been confirmedthat the proposed method can also be used for the preparation of other meatal sulfide-polymer composite microspheres, such as ZnS-P(NIPAM-co-20%MAA).

实验结果表明，与模板微球相比，复合微球呈现出较为粗旷、清晰的表面结构，且通过控制硫化物的沉积反应速度可以在一定范围内调控金属硫化物-高分子复合微球的表面形貌。

The type and concentration of thiophenic sulfur in gasoline and diesel fuel were determined separately by gas chromatography with a sulfur chemiluminescence detector.With activated carbon and 30％aqueous solution of H2O2 as catalyst and oxidant respectively, the experimental studies of oxidative desulfurization of gasoline and diesel were carried out.

采用气相色谱-硫化学发光检测器分析了汽油和柴油中噻吩类硫化物的分布及浓度；以活性炭作为催化剂，以30％过氧化氢溶液为氧化剂，在甲酸存在条件下考察了汽油和柴油中噻吩类硫化物催化氧化脱除的选择性，讨论了硫化物中硫原子电子密度对硫化物氧化选择性的影响。

In range of 300℃～900℃, all the transition metal oxide catalysts could get high ammonia conversion, during the initial stages of the reaction, the SO〓 conversion is relatively low since the catalysts have not been sulfureted, but it increases gradually and attain constant with rising temperature and time continuance,〓 is better than other catalysts in reactivity and elemental sulfur selectivity; XRD indicates that, in the SO〓-SCR process, stable transition metal sulfide is generated which is very important to SO〓 reduction and transition metal sulfide probably is the active phase of catalyst, further the reduction of SO〓 by H〓 to H〓S is the limiting step of all process, then the activity is somewhat related to its lattice oxygen yet not so notable; XPS indicates that little sulfur on surface exists as S〓 in sulfate, showing that TiO〓 could restrain the generation of sulfate.

对于过渡金属氧化物催化剂的研究发现，在300℃～900℃范围内，不同的催化剂均可获得很高的NH〓转化率，反应初期由于催化剂还未硫化，所以SO〓的转化率较低，随着温度升高和反应时间的延续，SO〓的转化率逐渐升高并达到了稳定值；七种过渡金属氧化物中，以〓对于NH〓还原SO〓反应的活性和选择性最好；XRD结果表明在NH〓-SO〓反应后生成了稳定的硫化物相，硫化物对SO〓的还原过程具有重要作用，催化剂的活性相可能是过渡金属硫化物，而且在硫化物催化剂上进行的H〓还原SO〓生成H〓S的反应是整个过程的速率控制步骤，所以催化剂的活性与其自身的晶格氧的氧化还原能力有一定的联系，但关系不明显；XPS结果表明催化剂表面的硫大部分以过渡金属硫化物的形式存在，只生成少量的S〓，说明TiO〓催化剂能够较好的抑制硫酸盐的生成。

Along with the increasing distance from the main ore-controlling structures, or from the deeper to shallow parts of an ore body, the species and content of metallic sulphides seem to increase.

随远离主干断裂或由矿体的深部到浅部，金属硫化物的种类和含量呈升高的趋势，往往由少硫化物蚀变岩型向多金属硫化物石英脉型转化，矿脉中的上部矿体或同一矿体的上部，金属硫化物的种类和含量较高，这种变化规律和矿脉的地球化学特点是吻合的。

Shihu gold deposit in Hebei Province, belonging to pyrite sulfide type,is characterized by multistage mineralization,but the main stage of mineralization is almost coincident with the mass separation of sulfideThe sulfur in sulfide and mineralizing hydrothermal solution is derived from anatectic granitic magma.

河北省石湖金矿属于黄铁矿硫化物型金矿，具有多期次成矿的特点。但金的主要成矿阶段与硫化物的大量析出阶段在时间上基本一致。硫化物及成矿热液中的硫来自深熔花岗质岩浆。从微观结构和晶体学理论上对金的赋存机理进行了讨论。

The results show that the oxidation efficiency of sulphide can be reached to 91.2%by using WO3/α-Fe2O3/W as heterogeneous photocatalyst, with quantity of catalyst =0.300g/50ml, pH=8～8.1, starting concentration of sodium sulphide=19.00～21.00mg/l, illumination time=7h.

试验结果表明：采用WO3/α-Fe2O3/W为复相光催化剂，当其用量为0.300g、pH=8.0～8.1、硫化物的浓度为19.00～21.00mg/l时，光照7h硫化物的氧化率达到91.2%。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。