硅酸化

A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced.

本文介绍了以氟硅酸钠、纯碱为原料生产晶体氟化钠的工艺，并对操作条件作了详细的说明。

The process of preparating potassium fluosilicate from the mother liquor of magnessium fluoride has been studied.

研究了以氟化镁母液为原料制取氟硅酸钾的工艺过程，通过试验获得了最佳工艺条件。

Phosphate fertilizer production;fluorinated gas;comprehensive utilization;barium fluosilicate;barium fluoride

中图分类号：TQ124.31；132.35 文献标识码：A 文章编号：1006-4990(2009)02-0041-02磷肥生产；含氟气体；综合利用；氟硅酸钡；氟化钡

However, the gelation tune was decreased with the increase of water amount and increased with the increase of ethanol amount.

在类似"两步法"中，通过同时使用的氢氟酸和氨水，凝胶化时间更短，其最佳条件是无水乙醇和水与正硅酸四乙酯的体积比各自是4和0.6，同时加入氢氟酸和氨水的体积比为1：1时，获得的比表面积最大。

The influence factors such as molar ratio of hexyl alcohol to propionic acid,amount of catalyst, and reaction time on the yield of hexyl propionate were discussed.

以钨硅酸为催化剂，通过丙酸和己醇反应合成了丙酸己酯，探讨了醇酸物质的量比、催化剂用量及反应时间对酯化率的影响。

The title complex has been synthesized by the reaction of silicotungstic acid , 1,10-phenanthroline monohydrate and cupric acetate.

以钨硅酸为催化剂，通过丁酸和异丁醇反应合成了丁酸异丁酯，探讨醇酸物质的量比、催化剂用量及反应时间对酯化率的影响。

It is considered that more content of bicalcium in sinter can intensify sinter powdering at low temperature.

认为烧结矿中硅酸二钙含量较高会加剧烧结矿低温粉化。

Mica is a kind of slice state and high conformation silicic acid mineral, which is novel industrialization filling compound.

云母是一种高形态化的薄片状硅酸铝矿物，是新型的工业化填料。

The dispersion mechanism of the dispersants was analyzed by testing the Zeta potential of the dispersion phase in the dispersion medium. It was shown that Ⅰ and Ⅱ raised obviously the absolute values of surface Zeta potential of titania particles, and NK-1 formed good solvate layers of the particles so that the nano-titania particles were stably dispersed in the water solns.

通过测定分散相在分散递质中的Zeta电位，分析了分散剂的分散机理，说明六偏磷酸钠和硅酸钠可显著提高整理液中二氧化钛颗粒表面Zeta电位的绝对值，NK-1在纳米二氧化钛颗粒表面形成良好的溶剂化层，使纳米二氧化钛颗粒在水溶液中获得优良的分散稳定性。

A patent for fluorosilicic acid production by adsorption of silicon tetrafluoride with pressure water is described in the production of wet-process phosphoric acid or phosphate fertilizer.

介绍一种在湿法磷酸或磷肥生产过程中用水吸收四氟化硅制备氟硅酸的专利技术。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。