Chemical and physical properties of fluorine and its safety, storage and shipment, preparation process are introduced, some valuable derivatives of fluorine and their applications are also discussed.

Introduced the characteristic of fluorine,offered the way how to select the metal and non metal which have corrosion resistant and oxidation resistant to fluorine,and introduced the toxicity and the safety datas of fluorine to human body.

In order to control and keep watch on the fluorine purity, the gas chromatography with series parallel connection of nine columns with two tubs is developed.

Results will be outlined pointing out to what extent the application of gas phase fluorination is suitable for a surface modification of textile materials.

Dry cleaning process for fume gas with F treatment;

New approach of fluorinated tail gas treatment in SSP production;

Harnesing technique and project practice of tantalum-niobium mine soluting waste gas of HF;