How to improve the purity of aluminium sulfate

The main use of aluminium sulfate is as a flocculant in water treatment to purify water, and there are corresponding provisions on its purity in water treatment. However, in many cases, the purity of the products produced by the manufacturer may not meet the standards of use. If products that do not meet the standards are used, then the effect of water purification may not meet the expected needs. Therefore, how to improve the purity of the product is a very important issue.
1. A clean production environment and a standardised production process are conducive to improving the purity of finished products and can help products meet the requirements of use.
2. The sulphuric acid that needs to be used in the production of raw materials should not use ore acid or other by-product sulphuric acid, as this has a significant impact on the purity of aluminium sulfate.
3. It is necessary to ensure that the product is not mixed with impurities during transportation, production, and processing. In particular, avoid the use of iron equipment in production and transportation, as iron equipment can produce impurities such as iron filings under acid corrosion, which will also affect the purity of the products produced later. It is recommended to choose stainless steel or other anti-corrosion equipment whenever possible.
4. It is essential to choose the right raw materials, which is very important for improving the purity of the product. It is generally recommended that manufacturers use aluminium hydroxide as raw materials and adopt the production process of the sintering method to ensure its purity and whiteness.