查询词典 uranium oxide

It uses FactSage software to simulate thermodynamics state of the mass change of calcium oxide and sodium oxide in shen mu coal and calculates reactive degree. It can instruct the study of slagging of boiler .

利用FactSage软件对神木煤模拟灰中钙含量变化和硅含量变化进行了热力学平衡状态模拟，计算其反应的程度及其各个温度点的反应物相。

To December 31, 1997 ended, the company has an annual production capacity 10,000 tons of production capacity of antimony series products, has developed a catalytic antimony trioxide, antimony sodium, five antimony oxide, antimony oxide dust and other 14 kinds of antimony new products, become the country's antimony industry the most complete variety of enterprises, is the second largest - producer of antimony products.

至1997年12月31日止，公司已形成年产10000吨锑系列产品的生产能力，先后开发出催化型三氧化二锑、锑酸钠、五氧化二锑、无尘氧化锑等十四种锑系新产品，成为全国锑行业品种最为齐备的企业，是全国第二大-锑品生产企业。

Water containing a variety of minerals and organic substances, lime, sodium carbonate and silica, aluminum oxide, sodium oxide, sulfur, sodium and other minerals.

水内含 多种矿物质和有机物质，有石灰、碳酸钠、二氧化硅、三氧化二铝、氧化钠、硫磺、硫酸钠等多种矿物质。

Firstly, the waste sodium was formed into sodium oxide by burning, and the sodium oxide residue was treated by atomized water. Then, the residue was formed into solution by water flow. Finally, it was neutralized by acid.

首先，将废钠燃烧生成钠的氧化物；再用水雾初步处理钠的燃烧产物；然后，用水喷淋的方法将全部燃烧产物转化成水溶液；最后，用酸中和成中性溶液。

The best technology parameters are studied in the production of precipitated silicon dioxide,light magne sium oxide and by-products of sodium sulfate and iron oxide red from the asbestos tailings in a wet method.

探讨了以石棉尾矿为原料，采用湿法生产沉淀二氧化硅和轻质氧化镁，副产硫酸钠、氧化铁红等化工原料的最佳工艺参数，充分利用了陕西省的矿产资源，解决了石棉尾矿的环境污染问题。

The major products of the company are superfine particles of all levels of or surface activated powders, such as aluminum hydroxide, high temperature aluminum oxide products, and low sodium aluminum oxide.

本公司现主要产品由各级超细微粒或表面活化微粉。如氢氧化铝、高温氧化铝系列品种、低钠氧化铝。

It is found that the increase in the diameter of oxide which grows during solidification is larger when the size of oxide before solidification and cooling rate during solidi...

此外，可以根据冷却速率和凝固后氧化物的直径判断氧化物是凝固前形成的一次氧化物还是凝固过程中产生的二次氧化物。

The results showed that hydrogen peroxide, silanols species and TiO〓 didn't have solvolysis activity of propylene oxide. While framework Al, coordinatively unsaturated Ti〓 ions as Lewis acid sites in the framework, Ti-OH and the five member ring active titanium species formed by TS-1, hydrogen peroxide and solvent can catalyze the solvolysis of propylene oxide.

研究结果表明：原料双氧水和TS-1沸石上的SiOH和TiO〓对环氧丙烷溶剂解反应无催化活性；而下列物种对环氧丙烷溶剂解反应具有催化活性：TS-1中的骨架铝，沸石骨架中配位不饱和的Ti〓形成的L酸中心，TS-1水解产生的钛羟基和由TS-1，双氧水和溶剂相互作用所生成的五元环中间活性钛物种。

Being combining with products distribution in styrene oxidation, we propose the styrene epoxidation carry out with Ti metallacyclo intermediates, And at the same time Ti-ZSM-5 have properties both catalytic epoxidation and acid-catalysis, namely the skeletal Ti can catalyze styrene epoxidation to styrene oxide and the skeletal Ti and Al can provide Lewis acid site to cause the rearrangement of styrene oxide to phenylacetaldehyde rapidly, the solvolysis to glycols and the cleavage of C=C double bond. Ti-ZSM-5 can also provide Bronsted acid site simultaneously, which is also catalytic center for the solvolysis to glycols.

同时结合Ti-ZSM-5催化选择性氧化苯乙烯反应的产物分布结果，提出苯乙烯环氧化反应可能是通过金属有机环机理进行；Ti-ZSM-5同时具有催化环氧化和酸催化两种功能，其骨架钛可催化苯乙烯环氧化生成环氧苯乙烷，而骨架钛和骨架铝等可提供Lewis酸位使环氧苯乙烷迅速发生重排生成苯乙醛从而使其成为反应的主要产物，同时还可发生加成以及碳碳键的裂解等副反应：Ti-ZSM-5也提供Bronsted酸位，它也是生成加成产物的活性中心。

The results show that the fractography is woody structure, there is a great deal ferric oxide in the hair seam, its matrix is composed by the ferrite, the pearlite and a little of sorbite and troostite, the grain size is 9～10 levels primarily, there are obvious zone structure and inclusions, which are silicate, sulfide and a little of oxide.

结果表明：弯裂带钢的断口呈木纹状，发纹处存在大量氧化铁，其基体主要由铁素体和珠光体组成，有少量索氏体及屈氏体，晶粒度以9～10级为主，有较为明显的带状组织，夹杂物为硅酸盐、硫化物及少量氧化物。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。