sulfides

Transition Metal Sulfides Hydrogenation Catalysts: Active Phase Structure and Mechanism of the Catalytic Reaction

过渡金属硫化物催化剂催化加氢作用机理

The mineralization of silver at the late stage of formation of sulfides, i. e.

银形成于硫化物成矿后期的硫锑铅矿─方铅矿─ 黄铜矿 ─银黝铜矿阶段.

It's from sulfides, like from silver coins.

这是硫化物, 像银币表面上的那样.

The Xitan gold deposit is of a quartz vein-type with little sulfides.

西滩金矿属少硫化物石英脉型金矿.

Carbon steel -- Very good mechanical properties; good resistance to stress corrosion and sulfides.

碳钢 -- 具有很好的机械特性; 良好的抗金属超应力腐蚀的能力和抗硫化物腐蚀的能力.

Mass-Independent Sulfur Isotope Fractionation Effect in Archean Stratiform Sulfides from Xintai Area, Shandong Province

山东新泰太古代层状硫化物中的硫同位素非质量分馏效应

These sulfides can cause illness, however at levels about a thousand times greater than that.

这些硫化物具有致病性, 但前提是,把可乐中含有的残留量乘上一千倍.

The silver in ores occurs mainly as independent silver minerals sulfides or in crack disulfide.

银主要以独立银矿物的形式存在于各种硫化物矿物边缘及矿物裂障中.

Molybdenum occurs as colloidal sulfides with carbon, sulfur and clay, and forms molybdenite through thermal metamorphism.

钼主要与碳、硫、粘土一起呈钼硫化物胶状集合体，经热接触变质作用后形成辉钼矿；

Analytical Method for Determination of Methyl Mercaptan and Other Sulfides in Atmosphere

大气中甲硫醇等有机硫化物的分析方法研究

In contrast, transition-metal sulfides are less reactive and susceptible to poisoning and can show higher selectivity.

相反, 过渡金属硫化物作为催化剂反应活性低、不容易中毒显示了很高的选择性.

The soluble sulfides are unstable, while the stable sulfides are unsolvable.

可溶的硫化物都不稳定, 稳定的硫化物都不可溶.

Rare earth sulfides have important applications in the fields of environmental-friendly pigments, thermoelectric materials and ceramics owing to their diverse structures and unique physical and chemical properties.

稀土硫化物由于它的结构多样性和独特的物理化学性质，现己在环保颜料、热电材料和陶瓷等领域得到应用。

Interest in transition-metal sulfides arises from their significance in industrial catalysis and biology.

过渡金属硫化物在工业催化和生物和上的重要性引起了广泛的研究兴趣.

The main points of chemical composition and cleanness control were listed and the terminal point control as well as low nitrogen control technology of EAF was developed. It was found that there existed nano-scale sulfides, oxides, nitrides and carbides in HSLC steel.

提出了HSLC钢的成分控制要点，开发了电炉终点碳控制和低氧控制技术，发现了低碳钢中存在纳米硫化物、氧化纳、氮化物和碳化物。

Organic and organic sulfides as old as history, Thiocarbonyl a class of compounds are very important organic compounds, can be synthesized a variety of important organic synthetic intermediates in organic synthesis plays an extremely important role.

有机硫化物的历史同有机化学一样古老，硫代羰基化合物是一类非常重要的有机化合物，可以合成多种重要的有机合成中间体，在有机合成中发挥着极其重要的作用。

In the absence of any metals and additives, A atom-economic method for synthesis of bromo-substituted alkynyl sulfides from alkynyl bromides and tetrahydrothiophene has been developed under mild reaction conditions.

发现了在无任何金属催化剂及添加剂的条件下，利用炔溴与四氢噻吩反应有效合成溴取代的炔硫醚的方法。

An obvious mass-independent sulfur isotope fractionation was first observed in Archean stratiform sulfides from Xintai area, Shandong Province.

笔者首次在山东新泰地区新太古代层状硫化物中观测到了明显的硫同位素非质量分馏效应。

O_s isotopic compositions of seafloor massive sulfides from the Jade hydrothermal field in the Okinawa Trough

冲绳海槽Jade热液区海底块状硫化物的Os同位素组成

Through the solid-liquid separation to achieve the purpose of removing heavy metals, sludge bioleaching mainly used Thiobacillus to oxidize the sludge of insoluble metal sulfides to metal sulfate stripping directly or indirectly.

污泥生物淋滤法主要利用硫杆菌属将污泥中难溶性金属硫化物直接或间接氧化成金属硫酸盐溶出，通过固液分离达到去除重金属的目的。

Sulfur often combines into sulfides or sulfates.

硫磺,往往结合成硫化物或硫酸盐.

Enantiomer Separation of Glycerin Sulfides and Glycerin Selenides with a Chiral Stationary Phase of Cellulose Derivative

衍生化纤维素手性固定相分离硫代和硒代甘油醚对映异构体

The extraction behavior of dialkyl ( aryl ) Sulfides may be controlled by polar and steric substituents effects.

二烃基 ( 基 ) 醚的萃取行为受极性和空间取代基效应的控制.

The precious metal minerals exist mainly in serpentines and account for 46.67%. The precious metal minerals existing in chalcopyrite account for 25.03%. Other carrier minerals are nickel sulfides, pyrite, and magnetite etc.

贵金属矿物主要分布在蛇纹石中，占46.67%，有25.03%的贵金属矿物分布在黄铜矿中，其他载体矿物有镍硫化物、黄铁矿和磁铁矿等。

Its presentational feature is development of structure and enrichment of granule xenomorphic sulfides.

其表象特征为构造发育,细粒他形硫化物富集.

The sulfides ( mainly benzothiophenes) in FCC gas oil has been oxidized to sulfones with H2O2-tri fluoroacetic acid and power ultrasound was used in the process.

采用H2O2-三氟乙酸作为氧化剂将盘锦催化裂化柴油中的硫化物（主要为苯并噻吩类）氧化成相应的砜，同时又用功率超声作用于该过程。

Catalysis: Development of chirometallopor-phyrins as enantioselective oxidation catalysts of alkenes and sulfides.

催化作用: 开发新型手性金属催化烯类及硫醚类之对映选择性氧化.

The adsorbing agents such as molecular sieves, metal oxides, active carbons, etc sulfides removal are presented.

介绍了分子筛类 、 金属氧化物类 、 活性炭类等脱硫吸附剂.

The industrial enrichment of Cu-Ni sulfide needs a relatively stable structure environment, and the long-time movement of structures makes ore magma invade into the shallow crust, gives rise to better crystallization, gravity differentiation and liquation of sulfides and silicates, and further forms ores.

硫化铜镍工业富集需要相对稳定的构造环境，构造长期活动，使得含矿岩浆能够上侵到地壳浅部并发生良好的结晶重力分异作用和硫化物硅酸盐熔离作用，并进而富集成矿。

The structure, properties, and applications of transition metal sulfides IF nano-materials , i.

系统的介绍无机类富勒烯金属硫化物纳米管、纳米洋葱及其 纳米 复合物的结构 、 性质和应用.