developed ore
4.On the basis of analysis of the problems present in the technology of the traditional uranium hydrometallurgy and the limitations of thin layer leaching process (TLL), a new leaching system--acid--curing and ferric sulphate--trickle leaching (AFL) process (NGJ in Chinese) has developed for extraction of uranium from the coarse ore.
6.Researchers have developed Researchers have developed a novel bulk flotation technological process(BFP),that is, bencficiating mineral particles according to their flotation velocity using a As-4 collector-frother,and centralized to separate again using AT-4,AT-5 as modificrs. An excellent metallurgical performance has been obtained when the new process is employed to beneficiate the poor ore.
8.Through cooperation between BHP Iron Ore Company and Lynx Engineering Company,not only a gondola car which improves combustion efficiency and applies new materials is developed,but also a new maintenance method is applied. As a result,the purchase and maintenance cost in the whole operation period is reduced greatly.
9.FINMET~?is a fluidized - bed direct - reduction process which is based on the use of non - agglomerated iron - ore fines as the feedstock and natural gas for the generation of reducing gas. Jointly developed by FIOR de Venezuela (now called Brifer)and VOEST - ALPINE Indus-trieanlagenbau GmbH and Co(VAI)of Austria,this process features a number of decisive advantages in comparison with conventional pellet - based direct - reduction technologies.
