There are many kinds of graphite powder resources in China with rich characteristics, but at present, the ore evaluation of domestic graphite resources is relatively simple. Find out the main natural types of ore, ore grade, main minerals and gangue composition, washability, etc., and evaluate the fine powder quality of ore simply, focusing only on crystal morphology, carbon and sulfur content and scale size. Although there are great differences in characteristics and quality between graphite ore and refined powder in different producing areas, it can’t be distinguished simply from the refined powder identification. The simple grading system has brought about high degree of homogenization of raw materials on the upstream of graphite in various places, which has concealed its practical application value. Here, the editor of Furuite Graphite introduces the demand for graphite powder differentiation in different fields:
This situation has brought very prominent problems: on the one hand, it is very difficult and blind for the downstream industries of graphite powder to choose graphite raw materials suitable for their own product needs, and enterprises need to spend a lot of time to identify and trial produce graphite powder raw materials with the same label but thousands of different properties from major graphite producing areas in China, which wastes a lot of time and energy. Even though it takes time and effort to determine the raw materials, the fluctuation of some core parameters of each batch of raw materials also leads enterprises to constantly revise the source and configuration methods of raw materials. On the other hand, the upstream enterprises of graphite powder lack the knowledge of the demand of downstream enterprises for raw materials, which leads to single product classification and serious homogenization. For example, Alxa League in Inner Mongolia and Jixi in Heilongjiang are both large scale graphite, which are suitable for preparing expandable graphite. However, due to the difference of occurrence state and scale regularity of gangue minerals, their expansion ratios are very different, and the applicable graphite products are different.
Post time: Dec-26-2022