2,3,3,3-四氟丙烯(也称HFO-1234yf)是具有潜力的低碳制冷剂,主要用于汽车空调制冷剂的替代.提供了一种工艺路线短、设备投资小、转化率和选择性高的合成2,3,3,3-四氟丙烯的方法,并进行了相应的研究.

Phosphorite is usually associated with a lot of fluorine resource,considering the current situation that there is a relatively insufficient supply in fluorine resource,it is conducive to meeting the requirement of fluorine resource in fluoride industry by taking fully advantage of the associated fluorine resource associated in phosphorite.In this paper,the author analysis the level of fluorine reserves contained in phosphorite,the distribution of phosphorite,the technology progress achieved in using phosphorite-associated fluorine resource to produce hydrogen fluoride,the utilization of fluorine resource in China and related industry policy,at last,it pinpoint the advice existed during the utilization of fluorine resource.

1,1,1,3,3 - pentafluoropropane is a better potential ozone depleting substance alternative with good performance, which has been used as coals （foam blowing agents） ,cleaning agents ,refrigerants ,heat transfer medi- um and aerosol propellants, and therefore it has good developing prospects . This article is regarding to systematic exposition of several pathways which solely or jointly, synthesis of 1,1,1,3,3 - pentafluoropropane phase method and liquid -phase method. In this regard, Its bright future and synthesis processes more detail . , including gas - are discussed in