氟化

So it has made the great progress. The method studied in this research from o-Dichlorobenzene is a ideal route to synthesize 2,4- dichlorofluorobenzene, which has temperate condition easy to control,safe process,low cost and good quality of products; The method of Phase transfer catalysis fluorination without solvent is better than present technology in presence of DMSO as solvent in many aspects; In a word,it is worth being promoted by the domestic correlative factories.

本课题所研究的以邻二氯苯为原料的2，4-二氯氟苯合成路线反应条件温和，工艺容易控制，生产安全，而且产品质量好，是比较理想的合成路线；以季胺盐为催化剂的无溶剂相转移催化氟化法与溶剂法相比具有明显的优势；通过实验确定的工艺条件对工业化生产有重要的指导意义，可提高以邻二氯苯为原料的工艺路线的市场竞争力。

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。

The influence of excess anhydrous hydrogen fluoride, the amount of oleum and its trickling rate, t...

在此过程中，本文研究了无水氟化氢过量百分率、发烟硫酸用量及滴加速度、六氟磷酸的加热时间、加热温度以及冷凝介质等因素对五氟化磷产率和纯度的影响。

The influence of excess anhydrous hydrogen fluoride, the amount of oleum and its trickling rate, the time...

在此过程中，本文研究了无水氟化氢过量百分率、发烟硫酸用量及滴加速度、六氟磷酸的加热时间、加热温度以及冷凝介质等因素对五氟化磷产率和纯度的影响。

And reacting the phosphorous pentafluoride with the lithium chloride in a hydrogen fluoride to prepare the lithium hexafluoro phosphate.

b使氟化磷与氯化锂在氟化氢中发生反应，制备六氟磷酸锂。

The influence of excess anhydrous hydrogen fluoride, the amount of oleum and its trickling rate, the time and temperature of heating hexafluorophosphoric acid, and refrigerants on the yield and the content of phosphorus pentafluoride was studied.

在此过程中，本文研究了无水氟化氢过量百分率、发烟硫酸用量及滴加速度、六氟磷酸的加热时间、加热温度以及冷凝介质等因素对五氟化磷产率和纯度的影响。

Group I was the control ,and other four groups ,groupⅡ,Ⅲ,Ⅳ,Ⅴ were fed the diets containing 500,1 000,1 500,2 000 mg/kg of fluorineass odium fluoride, respectively, for 150 days.

第1组为对照组，第2，3，4，5组在日粮中添加不同水平的氟化钠，使日粮中氟含量分别为500，1 000，1 500，2 000 mg/kg，实验期150 d。

Optimal conditions for crystallizing have been investigated on a laboratory scale pellet reactor initially seeded with phosphorite.

在流化床诱导结晶法除氟研究中，确定了以磷灰石为结晶核的氟化钙结晶过程中的最佳工艺参数。

Group I was the control ,and other four groups ,groupⅡ,Ⅲ,Ⅳ,Ⅴ were fed the diets containing 500,1 000,1 500,2 000 mg/kg of fluorine as sodium fluoride, respectively, for 150 days.

第 1组为对照组，第 2 ，3，4，5组在日粮中添加不同水平的氟化钠，使日粮中氟含量分别为 5 0 0 ，10 0 0 ，15 0 0 ，2 0 0 0 mg/kg，实验期 15 0 d。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。