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Xintai Group: Let’s talk about how to use calcium aluminate powder.

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Company News

2022-08-15

Calcium aluminate powder reacts with hydrochloric acid to produce polyaluminum chloride in a single step. Before starting production, first add water to the reaction tank and turn on the agitator. Then, add sulfuric acid in a quantified manner and dilute the solution to the specified concentration. Afterward, gradually add the calcium aluminate powder to initiate the reaction. During the reaction, the temperature inside the tank will gradually rise. When the temperature exceeds 11°C, add water appropriately to moderate the reaction and prevent it from becoming too vigorous and overflowing the tank. Add water in small amounts frequently to maintain the optimal reaction temperature. Once the calcium aluminate powder has been completely added and the reaction has continued for two hours, use pH test paper to verify that the pH has risen above 3. At this point, dilute the mixture with water to achieve a specific gravity of 1.25–1.26. The clear supernatant liquid obtained after settling in the sedimentation tank is the liquid product. Alternatively, the liquid can be dried in a dryer to obtain solid polyaluminum chloride.

Calcium aluminate powder reacts with hydrochloric acid to produce polyaluminum chloride in a single step. Before starting production, first add water to the reaction tank and turn on the agitator. Then, add sulfuric acid in a quantified manner and dilute the solution to the specified concentration. Afterward, gradually add the calcium aluminate powder to initiate the reaction. During the reaction, the temperature inside the tank will gradually rise. When the temperature exceeds 11°C, add water appropriately to moderate the reaction and prevent it from becoming too vigorous and overflowing the tank. Add water in small amounts frequently to maintain the required reaction temperature. Once the calcium aluminate powder has been completely added and the reaction has continued for two hours, use pH test paper to verify that the pH has exceeded 3. At this point, dilute the solution with water to achieve a specific gravity of 1.25–1.26. The clear supernatant liquid obtained after settling in the sedimentation tank is the liquid product. Alternatively, the liquid can be dried in a dryer to obtain solid polyaluminum chloride.

Calcium aluminate powder is primarily used in the production of aluminum salt products such as polyaluminum chloride, aluminum sulfate, and calcium aluminate. It can also be used to adjust the alkalinity level and serves as a refractory and insulating material.

Xintai Group: Storage, Handling, and Transportation of Calcium Aluminate Powder

Since calcium aluminate powder undergoes a chemical change upon contact with gases, it must be stored and transported in a dry, well-ventilated environment, protected from water and moisture. If the powder has already clumped together, it needs to be processed before use.

Xintai Group: A Brief Discussion on the Advantages, Applications, and Standardized Use of Calcium Aluminate Powder

Calcium aluminate powder is primarily used in the production of aluminum salts such as polyaluminum chloride, aluminum sulfate, and sodium aluminate. It can be employed to adjust the basicity level and is also suitable for use in refractory and thermal insulation materials. Calcium aluminate powder appears as a grayish-white powder. Its main components are a mixture of dicalcium aluminate (CaO·2Al₂O₃) and monocalcium aluminate (CaO·Al₂O₃). It is slightly soluble in water, and its aqueous solution exhibits alkaline properties with a pH value of approximately 11. The powder is packaged in plastic woven bags, each bag having a net weight of 50 kg. During transportation and storage, it must be kept dry, protected from moisture, and shielded from water. If the powder clumps upon contact with water, it should be properly treated before further use. Calcium aluminate powder exhibits extremely high reactivity with strong inorganic bases and can initiate reactions even at room temperature. Moreover, it releases significant heat and heats up rapidly. The leaching rate of aluminum oxide can exceed 90%. When used as a raw material for the production of liquid or solid polyaluminum chloride, it optimizes the manufacturing process, reduces costs, and enhances product quality.

Calcium aluminate powder reacts with hydrochloric acid to produce polyaluminum chloride in a single step. Before use, first add water to the reaction tank and turn on the agitator. Then, add sulfuric acid quantitatively, and after diluting the solution to the specified concentration, gradually add the calcium aluminate powder to initiate the reaction. During the reaction, the temperature inside the tank will gradually rise. When the temperature exceeds 110°C, add water appropriately to moderate the reaction and prevent it from becoming too vigorous and overflowing the tank. Add water in small increments and frequently to maintain the required reaction temperature. After adding all the calcium aluminate powder, allow the reaction to proceed for another two hours. Once the pH test indicates a value above 3, you can add water to dilute the solution to a specific gravity of 1.25–1.26. The clear supernatant liquid obtained after transferring the mixture to a sedimentation tank is the liquid product. Alternatively, the liquid can be dried in a dryer to obtain solid polyaluminum chloride.

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