铋的

The deposition rates of bismuth and antimony are 85.6% and 98%, respectively.

在整个优化工艺条件下，锑的回收率为82%，铋的回收率为96%。

This method had certain practical value in the separation and enrichment of trace bismuth.

该方法在微量铋的分离和富集中有一定的实用价值。

Because the bismuth product structure is simple, so developing the bismuthic deep process product is necessary.

但是铋产品结构比较单一，进一步发展铋的产品深加工很有必要。

The second step was the synthesis of bismuth sulfide by boiling of bismuth octanoate and sulfur in decane during 2.5 hours.

第二个踏步是在 2.5个钟点期间藉着癸烷的铋和硫的沸流硫化铋的合成。

Bismuth-contained conjugate compounds with low solubility in most of solvents might act as drugs to enter into the body before the efficacy, it is hard for the residual bismuth element to interpenetrate into body tissue, and most are metabolized easily out of the body, as a result, bismuth-contained compounds have a broad applications in medication in the future.

铋的配合物在大多数溶剂中溶解度很小，作为药物进入人体以后，发挥了药效，剩余的铋元素不容易渗入人体组织，大部分很容易代谢出来，因而铋的化合物在医药上有广泛的应用前景。

A radioactive metallic_element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding ''.

一种放射性金属元素，类似碲和铋，见于铀矿，但能通过用中子轰击铋的核反应制造。

Photocatalytic activities of bismuth oxyhalide compounds are improved by doping and modifications. By designing of the crystal structures and energy band gaps, highly efficient photocatalysts of bismuth oxyhalide compounds can be obtained.

借助于掺杂改性，卤氧化铋的光催化性能得到进一步改善；通过晶体结构和能带结构的设计合成可以得到高活性的卤氧化铋化合物光催化剂。

By designing of the crystal structures and energy band gaps, highly efficient photocatalysts of?bismuth?oxyhalide?compounds?series?can be obtained . Finally the trend of lated research is prospected.

借助于掺杂改性，卤氧化铋的光催化性能得到进一步改善；通过晶体结构和能带结构的设计合成可以得到高活性的卤氧化铋化合物光催化剂。

A preparation method of the visible-light photocatalyst Bi2WO6 nano-powder is characterized by comprising the steps as follows:(1) the selection of raw materials;(2) bismuth nitrate Bi(NO33 question mark 5H2O is added into a citric acid solution to obtain the citric acid solution containing white sediment;(3) EDTA is added into ammonia water which is then added dropwise with the citric acid solution containing the Bi(NO3)3 question mark 5H2O so to obtain a solution of bismuth;(4) the solution of bismuth is added with (NH4)6W7O24 question mark 6H2O solution to form a precursor solution which is then stirred, dried, coked, cooled and ground to obtain decarburized powder;(5) the decarburized powder is roasted for 2h to 4h under 450 DEG C to 550 DEG C to obtain the visible-light photocatalyst Bi2WO6 nano-powder.

可见光催化剂Bi 2 WO 6 纳米粉体的制备方法，其特征在于它包括如下步骤：1原料的选取；2将Bi(NO 3 ) 3 5H 2 O加到柠檬酸溶液中，得到含有白色沉淀的柠檬酸溶液；3将乙二胺四乙酸加到氨水中，并缓慢滴加入含有Bi(NO 3 ) 3 5H 2 O的柠檬酸溶液中，得铋的溶液；4将(NH 4 ) 6 W 7 O 24 6H 2 O溶液加入上述铋的溶液中，组成前驱液；搅拌，干燥，焦化，冷却后，研磨，得去碳的粉体；5将去碳的粉体在450～550℃下焙烧2～4h后，得到可见光催化剂Bi 2 WO 6 纳米粉体。

The influences of temperature, current density and additives on bismuth removal from crude antimony were discussed.

摘 要：针对粗锑精炼过程中锑铋难以分离的技术难点，采用H2SO4-NH4F-SbF3电解液体系进行高铋粗锑电解精炼除铋，考察温度、电流密度及添加剂对除铋的影响。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。