Calcium aluminate powder: Introduction of calcium aluminate powder
2021-11-19
Calcium aluminate powder (raw material of water purifier) is mainly composed of CaO, AL2O3 and Fe2O3, which has strong activity. The one-step method of producing water purifier by acid dissolution can save a lot of manpower and electricity, and reduce the cost to a large extent, and has the advantages of simple process equipment and easy to master. It is the ideal raw material for the production of alkali aluminum chloride and polyaluminium chloride.
Calcium aluminate powder is an off-white powder. The main component is a mixture of calcium dibasic aluminate (CaO-2A1203) and calcium aluminate (CaO-A1203), slightly soluble in water, the aqueous solution is alkaline, PH value is about 11. The reaction activity of calcium aluminate powder with inorganic strong acid is very high, and it can be started to occur at room temperature. It can be used as raw material to produce liquid or solid polymeric aluminum chloride, which can simplify the process, reduce the cost and improve the quality of products.
When producing, first add water to the reaction pool, turn on the stirring slurry. Then add hydrochloric acid quantitatively, dilute to the required concentration, and then slowly add calcium aluminate powder for reaction.
During the reaction process, the temperature in the pool will gradually increase. When it exceeds 110℃. Can be restrained by adding water in appropriate amount. So that the reaction is not intense and overflow pool. Add water in small amounts several times. Maintain the normal required temperature. After adding calcium aluminate powder, then react for 2 hours, and when the PH test paper is greater than 3, you can add water to dilute to a density of 1.25-1.26, put the material to the settling pool after settling well, the upper clear liquid is the liquid product, also can be dried by the dryer to get solid polymeric aluminum chloride products.
Calcium aluminate powder is mainly used to produce aluminum chloride, aluminum sulfate, sodium aluminate and other aluminum salt products. It can also be used for the adjustment of alkalinity and refractory materials.
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