تنگستن، وضعیت فعلی و چشم انداز آینده

There are ۴ million tones of tungsten reserves in the world, which with considering the present amount of tungsten uses; it will be adequate for next ۱۰۰ years. It is not explored any tungsten reserve in Iran. About ۴۳ thousands tons of pure Tungsten are produced in the world every year, which one percent anniversary increasing in produce is anticipated. The amount of the ore and concentrate of tungsten world trade is about ۵ thousands tons every year. The amount of the import of tungsten products are about ۱۵۰ thousands tons which increasing about ۱۴ percent per year. The main question is about the importance of exploration of the probably tungsten deposits when some relation industries like steel are expanding. In this paper it is tried to answer to above mention question with attention to present trends in tungsten trade.

کلید واژه ها: سایر موارد