Manufacturer of alumina on the comprehensive utilization of bayer process red mud - Appropriate chemical industry
in recent years, the alumina in more and more domestic demand, China's alumina factory in efforts to achieve sustainable development, the positive solving the problem of bauxite supply and demand contradiction in some areas at the same time, also must carry on the reasonable recovery and utilization of red mud.
at present, the factory is generally used in bayer process of alumina production process, the red mud of bayer process production process contains a lot of metal and nonmetal elements, it is very valuable and abundant secondary resources, especially in the aluminum increasingly scarce today, recovery of these metals, that is, to some extent, realize the sustainable development of resources, and has the very good economic and environmental benefits.
bayer process red mud used in the production of building materials is a good direction, and alumina factory has made some research achievements, but because of the red mud in the production of sintered brick clay is difficult to control, and sintering range is relatively narrow and difficult to control temperature and other characteristics, so the bayer process red mud used in the study of building materials also need further.
because of bayer process red mud particles is fine, so you can consider as a filler material to use directly, can be used in gels and pore, make cement gel more dense.
alumina factory also consider bayer process red mud used in the processing of waste gas, gas can be used to deal with pollution. Red mud treatment of gas dry method and wet method, two kinds of the rate of desulfurization is objective.
alumina factory also in the study with bayer process red mud to deal with waste water, red mud particles small, specific surface area is big, can be a lot of metal ions adsorption, even also has certain adsorption to radioactive elements.