3 results about "Sulfur tetrafluoride" patented technology

The invention belongs to the field of synthesis of molybdenum dioxide dichloride, and particularly relates to a synthesis method of molybdenum dioxide dichloride. Comprising the following steps: S1, pretreating a molybdenite raw material; s2, the pretreated molybdenite raw material is placed in a reactor, chlorine trifluoride, oxygen, fluorine mixed gas and inert gas are introduced into the reactor and react with the pretreated molybdenite raw material at the reaction temperature of 20-50 DEG C, and a crude product of dichloromolybdenum dioxide and a crude product of sulfur tetrafluoride are generated; and collecting a dichloromolybdenum dioxide crude product from the bottom of the reactor. The raw ore molybdenite is used as the molybdenum raw material, the cost of the synthesis process is reduced, the process route is simple, and the reaction conditions are milder; in addition, the byproduct sulfur tetrafluoride in the invention is a product with high added value.

The utility model provides a kind of device of multistage rectification purification sulfur tetrafluoride, can realize rectification purification of sulfur hexafluoride while rectification purification sulfur tetrafluoride, the device further includes heavy component column, the upper middle part of heavy component column is equipped with secondary feed inlet, its bottom is equipped with secondary liquid outlet, its upper part is equipped with secondary gas outlet, secondary condenser is installed on the upper part of heavy component column, main liquid outlet is communicated with secondary feed inlet by intermediate pipe, material pump is equipped on intermediate pipe, heater is installed on intermediate pipe between material pump and heavy component column, main gas outlet is communicated with sulfur tetrafluoride storage tank by main collecting pipe, secondary gas outlet is communicated with sulfur hexafluoride storage tank by secondary collecting pipe, secondary liquid outlet is communicated with residual liquid tank by residual liquid collecting pipe, improve economic value, using gaseous material precooling treatment, can improve the promotion efficiency of sulfur tetrafluoride.