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Xintai Group: Let’s talk about the key characteristics of calcium aluminate powder.
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2022-08-18
Calcium aluminate powder is a raw material for water treatment agents and possesses strong reactivity. It has a wide range of applications. According to manufacturers of calcium aluminate powder, this powder is primarily used in the production of polyaluminum chloride and can also serve as a refractory and thermal insulation material. The production process for calcium aluminate can be carried out using a rotary kiln for calcium aluminate powder cement.
Xintai Group: Let’s talk about the key characteristics of calcium aluminate powder.
Calcium aluminate powder is a raw material for water treatment agents and possesses strong reactivity. It has a wide range of applications. According to manufacturers of calcium aluminate powder, this powder is primarily used in the production of polyaluminum chloride and can also serve as a refractory and thermal insulation material. The production process for calcium aluminate can be carried out using a rotary kiln for calcium aluminate powder cement.
The production process of calcium aluminate requires that the rotary kiln used for calcium aluminate powder cement reach the necessary conditions.
The calcium aluminate cement rotary kiln consists of components such as cylinder sections, supporting equipment, support equipment with stop wheels, a transmission system, movable supports, a kiln tail sealing device, and ignition equipment. This cement rotary kiln boasts advantages including a compact structure, reliable operation, and easy control during the processing procedure.
The kiln shell is made of thick steel plates approximately 40 mm thick, with the peripheral area of the tire ring being thicker still due to the extremely heavy load it bears. Inside the kiln shell, there’s a layer of insulating bricks about 200 mm thick. During operation, because of the continuous high temperatures and the associated heavy loads, the kiln shell tends to deform into an elliptical shape. This deformation puts significant stress on the kiln bricks, thereby shortening their service life.
The area at the kiln tail, approximately one meter long, is conical in shape, allowing the feed material from the preheater’s feeding chamber to enter the kiln relatively smoothly.
Xintai Group: The key characteristics of calcium aluminate powder are as follows:
1. It generates low heat, has a high sodium bisulfate content and a low calcium hydroxide content, enabling the production of solid polyaluminum chloride with a sodium bisulfate content exceeding 30%.
2. Acid consumption is reduced, and costs have dropped significantly, overcoming the challenge that calcium aluminate cannot directly produce sodium bisulfate products with a concentration exceeding 30%.
Calcium aluminate powder has a uniform composition, a low melting point, and a faster melting rate, which can shorten smelting time. It contains no fluorine, does not corrode furnace materials or steel ladles, and features a high-density structure that is non-hygroscopic, making it ideal for storage and transportation. Due to its stable phase composition and rapid slag formation, it reduces the impact of smelting dust on the environment and ensures a stable refining process. Moreover, it contains minimal residues such as oxides, nitrogen, and carbon, which helps improve the quality of steel products.
How can we precisely determine the aluminum content in calcium aluminate powder?
Calcium aluminate powder is primarily used as a raw material in the production of aluminum sulfate, polyaluminum chloride, and crystalline aluminum. It serves as a substitute for aluminum hydroxide powder and, when manufactured via an acid-soluble process, becomes an excellent resource-saving alternative for water treatment agents. It boasts the advantages of low cost and high aluminum content.
Xintai Group: A Method for Measuring Aluminum Content in Calcium Aluminate Powder
1. Use a balance to accurately weigh the quality of calcium aluminate powder.
2. Thoroughly dissolve calcium aluminate in water.
3. Add sulfuric acid dropwise to the aqueous solution. (Initially, a white precipitate will form; subsequently, the white precipitate will gradually dissolve.) Stop adding acid when you observe that the white precipitate has begun to fade.
4. Add an excess of sodium hydroxide to the above mixture. (The phenomenon is that the white precipitate gradually increases in amount.) Stop adding sodium hydroxide when you observe that the white precipitate no longer rises and has reached a steady state.
5. Filter the solution, collect the precipitate, wash it thoroughly, and accurately weigh its mass. [The precipitate is Al(OH)3.] 6. Based on the known data, calculate the mass of Al and determine its mass concentration.
Although this approach has a bit of inconvenience, the feasibility analysis firmly confirms that it is still viable.
Xintai Group: Thank you all for watching. See you next time!
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