Raw materials affect not only the final product quality but also the final product cost Iron ore is the main raw material for steel production and plays a key role in the development of steel industry The present iron ore resource and production scenario in main iron ore producing countries in the world is summarized
In view of the continuously increasing iron & steel production and the increasingly shorter iron ore resource faced by Bao Steel, it is proposed to adopt the handling principles including scientific treatment of the relationship between transformation and construction of the self-owned resource base, diversified operation, effective utilization of the in-region and outside-region iron ore resources and setting up foreign iron ore resource supply bases.
In view of the acualities of the iron ore resources of Tang Steels mines and its future development, it is proposed that full utilization should be made of its underdeveloped iron ore resource in the east of Hebei Province by rational exploitation and possessing certain strategic reserve so as to ensure Tang Steel's demand on iron ore in its future development, which is of some guidance significance.
By comprehensive chemical analysis of samples taken from 520 heats for three steel grades(steel Q235,20,rail steel)which were collected from eight plants,the content of residual trace elements brought by iron ores into steels is given It shows that by using local iron ore resources some trace elements in those iron ores are brougth into steels and make them particular with local characteristics
And before that, the relative theory and solution steps are expatiated in this paper. Concequently, the initial optimization model of ironstone resource utilization in CISC is put forward on the basis of original system.
Thirdly , on the base of the Eleventh Five development strategy planning, this thesis analyse the resource structure request about the import ironstone , the effect aroused by the ball-ironstone project about 5 million ton/year in the building in e state of Hubei province about WISCO purchasing ironstone from Australia ,South Africa Brazil .
On the basis of the analysis of resources and transportation status of iron ore in the global and China, we analyze the internal and external environment for China's iron and steel industry by five power models and SWOT, it confirms that its necessary and important for China's iron and steel industry using imported iron ore.
AbstractThis paper briefly summarised thedistribution of weak magnetism iron ores inChina and other regions of the world, thetypes and physical and chemical propertiesof the main industrial minerals and gangueminerals in these ores , and the ore types ofthese resources. This paper also pointed outthe basic charactaristics of these iron ores inthe future and the effects of these ore char-acteristics on the separation.
The issue of rational utilization of high-silica as well as high-alumina iron ore resources in the southern regions of our China was discussed based on the analysis of characteristics the both kinds of iron ores and their use at home and abroad.