查询词典 sulfide

At present,the rate laws and reaction mechanisms of pyrite oxidation,pyrite and chalcopyrite formation,uraninite and magnetite dissolution in aqueous solutions are mainly studied,and it is discovered that (1)oxidation rate of pyrite controlled by surface reaction assume fractional dependence on Fe3+ and O2 molalities in acid solutions;(2)Pyrite cannot nucleate directly from solutions below 300 ℃,it can only form initially through sulfidation of a FeS precursor. The rate equation of reaction between FeS and H2S to form pyrite is of the second order;(3)Chalcopyrite is formed by reactions of pyrrhotite or pyrite with Cu2+,the former proceeds via a series of mediate metastable phases of Cu-Fe sulfide,whereas the rate equation of the latter is apparently of the first order which is controlled by surface reaction;(4)The nonlinear behavior of magnetite dissolution at acid pH can be represented by a shrinking core model coupling with surface reaction and diffusion transport.

目前主要研究了水溶液中黄铁矿氧化、黄铁矿和黄铜矿形成、晶质铀矿和磁铁矿溶解的速率定律和反应机理，发现：(1)酸性溶液中黄铁矿的氧化速率对Fe3+和O2浓度呈分数依赖并受表面反应的控制；(2)低于300 ℃时黄铁矿不能从溶液中直接成核，而需初始地通过FeS先驱物的硫化生成，FeS与H2S反应形成黄铁矿的速率方程为二级；(3)磁黄铁矿或黄铁矿与Cu2+反应均可形成黄铜矿，前者经历了一系列准稳的Cu-Fe硫化物的中间物，后者的速率方程为表观一级并受表面反应的控制；(4)酸性pH时磁铁矿的非线性溶解行为可采用表面反应扩散输运耦合的收缩核模型来描述。

The company has from the day, the United States, Britain, France and other countries and the Taiwan region, including the introduction of K5Mark5 mixer, vacuum vulcanizer, ozone aging me, MTS dynamic and static stiffness device, measurement test system, sulfide Miriam, three-dimensional machining center, PRO / E and CAD / CAM systems, processing, testing equipment, the assembly level and production capacity ranks the forefront of the domestic industry to reach international advanced level.

公司先后从日、美、英、法等国家和台湾地区引进了包括K5Mark5密炼机、真空硫化机、臭氧老化箱、MTS动静刚度仪、度量试验系统、硫化仪、三维加工中心、PRO/E及CAD/CAM系统在内的加工、检测设备，其装配水平和生产能力均居国内同行业前列，达到国际先进水平。

Production equipment: Taiwan Fuyuan middle of a rubber injection machine; Canton producing 55 liters a mixer; 35 liters a mixer; 9 inch -16 inch open Lian Machine 6; 200T flat panel computer automatically sulfide Machine 20; 50T-100T Flat Panel vulcanizer 15; pre-extrusion molding machine, one Taiwan.

生产设备：台湾富源产橡胶注射机一台；广州产55升密炼机一台；35升密炼机一台；9寸-16寸开炼机6台；200T电脑自动平板硫化机20台；50T-100T平板硫化机15台；预成型挤出机一台。

ZnO green phosphors with hexagonal wurtzite were prepared by thermal oxidization of zinc sulfide and zinc chloride.

摘 要：在氯化锌存在下，通过硫化锌的热氧化制备具有六方纤维锌矿结构的氧化锌绿色荧光粉；研究煅烧温度对荧光粉的激发光谱和发射光谱的影响并测定了荧光粉中硫、氯元素含量。

During the technology of Zincite produced by direct process from the Zinc Sulfide mineral concentrate in high elevation area,the characteristic of the impurities,distribution was different from that of the technology under usual condition.

根据硫化锌精矿在高原地区用直接法生产氧化锌的工艺中，杂质元素走向与正常状况下不同的特点，文章研究了该工艺的不同操作参数对产品质量的影响。

The waste water of acentric sedimentation contains sulfide concentration which is approximately 0;COD amounts to from 3, 000 to 5, 000 mg/L, lightening the burden on contamination treatment.

母液中硫化物近似为0mg／L，COD含量降为3000～5000mg／L，大大减轻了后续处理的负担。

A toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable gray metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores.

有毒的非金属元素，有多种同素异形体，稳定且有金属特性的灰色同素异形体用于光电池，其在亮处的导电性比在暗处好，见于硫化物矿石中。

Stringered sulfide inclusions severely and anisotropically affected the caustic SCC of 16MnR steel.

沿轧向分布的条状MnS夹杂使16MnR钢横向抗碱脆性能明显低于其纵向抗碱脆性能。

Aiming at the shortcoming of sodium sulfantimonate preparation process,a new preparation process was designed which adopted sodium sulfide to leach sodium sulfantimonate from sodium antimonate.

针对目前硫代锑酸钠制备工艺的不足，设计出用硫化钠浸出锑酸钠制备硫代锑酸钠的新工艺。

According to the theoretical study, new hydrometallurgical processes for treating auriferous sulfide concentrate were developed.

在理论研究的基础上，以黄金洞金精矿和万年银金矿这两种典型难处理高砷硫化矿为原料，进行湿法新工艺探索。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。