Recently, many customers have been asking a question. Regarding polyaluminium chloride, is the higher the basicity, the better the product quality? In fact, the result is just the opposite! Today, Henan Xinhuan will explain it to you!
First of all, let's understand what is the basicity of polyaluminium chloride? The basic component that causes the changeable form of polyaluminium chloride is OH ions. The indicator for measuring OH ions in polyaluminium chloride is called basicity (). The basicity is usually defined as the equivalent percentage of OH and Al in the polyaluminium chloride molecule (〔OH〕/〔Al〕×100(%)). Polyaluminium chloride can be understood as a hydrolysis product between the normal salt AlCl3 and the alkali Al(OH)3. Generally, the basicity of polyaluminium chloride is in the range of 16.7% to 83.3%, and the basicity of the Japanese standard is 45% to 65%.
1. The three major indicators of polyaluminium chloride, aluminum content, basicity, and water-insoluble matter, basicity is an important indicator and a reference indicator for manufacturers. Basicity is one of the most important quality indicators of polyaluminium chloride products.
2. For solid polyaluminium chloride, the basicity is a very important indicator. Generally, the basicity of polyaluminium chloride is between 40 and 95 (basicity is adjustable).
3. Improving the basicity of polyaluminium chloride products can greatly improve the economic benefits of production and use. When the basicity increases from 65% to 92%, the cost of production materials can be reduced by 20% and the cost of use can be reduced by 40%.
As for the price of polyaluminium chloride, the lower the basicity, the higher the relative production process, the higher the price, and the less the amount used. The spray-dried polyaluminium chloride with a lower basicity is mainly made by reacting calcium powder and hydrochloric acid. Different polyaluminium chlorides have different basicities due to different production processes and raw materials.
We conclude that the basicity in polyaluminium chloride products is one of the most important quality indicators and an important factor that directly affects the use effect. Based on the basicity value of the liquid, Henan Xinhuan recommends a standard value of 45% to 95% for the basicity indicator of solid polyaluminium chloride, considering the increase in basicity during drying. For polyaluminium chloride, the basicity directly affects the effect of its use, and it should not be too high or too low. The spray-dried polyaluminium chloride that can adjust the basicity is mainly made by reacting calcium powder and hydrochloric acid. Different polyaluminium chlorides have different basicities due to different production processes and materials.
Polyaluminium chloride is a new, high-efficiency inorganic polymer coagulant currently used in the world. It mainly destabilizes, aggregates, flocculates, coagulates and precipitates fine suspended particles and colloidal particles in water through the mechanisms of compression double layer, adsorption neutralization, adsorption bridging, and sediment capture to achieve purification and treatment effects. It is widely used in water plants, power plants, industrial water purification and wastewater treatment. The performance of polyaluminium chloride is better than that of traditional low-molecular inorganic salts such as aluminum sulfate and ferrous sulfate. It also has the advantages of small dosage, large alum floc, good COD removal, chromaticity and suspended solids performance. The raw materials are bauxite or aluminum ash by-product of aluminum plant, industrial hydrochloric acid or waste hydrochloric acid, and polyaluminium chloride. The product quality meets the standard of GB15892-20009.
The main products of flocculant manufacturer Xinhuan Water Treatment are:
White polyaluminium chloride (food grade), drinking grade polyaluminium chloride, industrial grade polyaluminium chloride, anionic polyacrylamide, cationic polyacrylamide, nonionic polyacrylamide, petroleum recycling polyacrylamide, oil recovery polyacrylamide, polyacrylamide, polymer flocculant polymer flocculation coagulant, polymeric ferrous sulphate, polyferric aluminium chloride and other water treatment chemicals. Welcome customers to write to us to negotiate business! Tel/WhatsApp：+8619003830067 Email：joanna@xhwtm.com Contact:Joanna
