Andalusite is an aluminum silicate mineral, and sillimanite, kyanite collectively aquamarine group mineral, chemical composition Al2 [SiO4] O, and andalusite containing AI2O3 62.92%, having a specific gravity of 3.13 SIO2 37.08% -3.16g/cm3 Distribution range: The use of Chinese andalusite started late. From 78 years onwards, prospecting, evaluation and exploration of high-alumina mineral resources such as andalusite were carried out. The industrial requirements for it were changed according to the conditions of use. According to the ore-seeking effect of andalusite in recent years, China's mineral resources are very rich, which is conducive to the geological conditions for the formation of such minerals. Liaoning, Jilin, Qinghai, Gansu, Shaanxi, Shandong, Henan, Xinjiang, Fujian, Hubei, Sichuan, Beijing and other provinces and cities have found. In many areas, the content of andalusite minerals is high, and the mineral composition is simple, and the storage is mostly above the medium. Industrial indicators: classification of ore source ore: 1. The grade grade is 5%; the grade I product is ≥8%, and the grade II product is 5 to 8%. 2, the thickness of the pickable and the thickness of the stone removed are 1 meter. Concentrate quality standards: Main use: In view of the physicochemical properties of andalusite, it is one of the known high-quality refractories. It addition to the raw material for smelting industry refractory advanced technical ceramics industry, but also the smelting of high strength lightweight alloy silica alumina, metal fibers, and the production of oriented with supersonic aircraft and spacecraft. According to reports, foreign countries still use mullite to gasify coal and make radomes. Crafts and decorations can also be made by some of the crystals that are well crystallized and bright in color. Its application field is still expanding. Mineral processing technology : In the country, the exploration work of andalusite began in 1978, and the exploration work of the andalusite beneficiation laboratory was carried out successively, generally using magnetic separation-flotation; re-election-flotation, flotation-magnetic separation, magnetic separation- - Re-election - a joint sorting process such as flotation. Floating magnetic combined weight of andalusite production process is the most common beneficiation methods, are generally finely ground in advance by high intensity magnetic separation of iron removal, reselection (shaking, etc.) titanium desliming removal, flotation off mica and quartz, In the flotation process, reverse flotation de-mica is often used, and positive flotation is used to remove quartz. Re-election and magnetic separation are mainly for the purpose of removing muddy impurities and magnetic iron-titanium and biotite in the ore, and the effect of flotation is the main one. For the carbon-containing andalusite, some decarburization and de-sludge are required. And then flotation of andalusite. The flotation is mainly adjusted with sulfuric acid, using sodium petroleum sulfonate, dodecylamine, hydroxamic acid, sodium lignosulfonate, calcium lignosulfonate, salicylic acid, chlorinated paraffin soap, potassium ethoxide sulfonate, etc., alone or in combination. As a collector of andalusite. In short, the ore beneficiation method basically combines the three major types of ore dressing methods in re-election, flotation and magnetic separation in beneficiation. In practical applications, it is necessary to flexibly use these mineral processing methods according to different ore properties to determine one. Kind or several combinations are used in different orders. Gallon Container Printing Machine Container Printing Machine,Screen Printing Equipment,Plastic Container Printing Machine,Food Container Printing Machine GIG (DONGGUAN) CO., LTD , https://www.tubeprinter.com