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This paper studies the use of of desulphurization slag and molybdenum tailings and other industrial waste as a raw material to prepare ceramics. Using X-ray diffraction analysis, thermogravimetric - differential thermal analysis, X-fluorescent element analysis test means desulfurization slag, molybdenum tailings and artificial stone Feifen chemical composition of the raw materials, mineral composition, thermal performance, production products related performance tests, and study how to prevent the shedding of SO2, the following research: (1) molybdenite main tailings quartz containing feldspar, mica and molybdenum and other trace components . Can be part or all of the to replace feldspar Gang sand material for the production of ceramic products. 30% molybdenum tailings and other clay raw materials and other ingredients, the firing the calcined temperature range 1h 1050 ℃ ~ 1100 ℃ sintered watts can produce first-class products. The indicators are in line with the relevant requirements of GB/T21149-2007 \(2) in 35% red mud, 35% Wong, 30% Gang sand formulations based on, mixed with 6% mainly calcium sulfite desulfurization slag producing sintered tile, oxidizing atmosphere, the firing temperature from 1100 ℃ reduced to 1050 ℃, holding time shortened from 2h to 1h, the products SO2 Yat-put rate reduced from greater than 90% to about 56%. (3) the use of desulfurization the slag preparation of ceramic tile, mixed with calcium waste powder raise blank Ca / S ratio ≥ 3, can significantly reduce SO2 shedding rate. When the the desulfurization slag dosage of 6%, 10% calcium waste powder dosage, ceramics Ca CaSO4 and CaAl2Si2O8 forms exist, no free lime, will not affect the quality of ceramic products. SO2 in the process of firing ceramic tile shedding rate from 56% to about 45%. (4) the ceramics surface Shi calcium glaze, closed blank surface pores and absorb SO2, desulfurization efficiency with increased calcium content in the glaze has been improved in the glaze layer fixed sulfur CaSO4 and glass phase form, glaze products combine good. In addition, the use of molybdenum tailings replace Gang sand, can increase the blank K, Na content, thus improving the products in the glass phase, help to reduce SO2 shedding rate. (5) use of the the desulfurization slag firing ceramics doped calcium waste powder, molybdenum tailings replace Gang sand, technical measures as well as the surface of the glazing, firing temperature of 1050 ° C in oxidizing atmosphere under control, holding time 1h, can will eventually the SO2 shedding rate dropped to about 25%. (6) The comprehensive utilization of molybdenum tailings desulfurization slag and calcium waste powder production sintering watts, molybdenum tailings amount of 30%, the desulphurization slag content is 6%, calcium scrap powder content is 10%, and the surface of the glazing , 1050 ℃ calcined 1h resulting products flexural strength compared with the the unused waste residue sample increased 1.7MPa to achieve 10.7MPa; water absorption decreased from 6.5% to 5.3%. Other indicators meet GB/T21149-2007 \Comprehensive utilization of molybdenum tailings desulphurization slag and calcareous waste powder complex doped produce the performance qualified sintering watts, not only turning waste into treasure, with the significance of sustainable development, has opened up a new way for class comprehensive utilization of industrial residues .
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