What is polyaluminium chloride production?

PolyAluminium Chloride production is one of the most exigent process for glass-lined equipement due to its high corrosive and abrasive effect. That's why, the experience and the qualification of De Dietrich Process Systems allow to meet qualitatively those process requirements.

How to produce high basicity polyaluminum chloride and aluminum chlorohydrate?

This invention relates to a process to produce high basicity polyaluminum chloride and aluminum chlorohydrate by electrodialysis. Polyaluminum chloride (PAC) is the name given to the family of compounds defined by the formula: Where 0 < n ≤ 3m and where m ≥ 1. The degree of neutralization (i.e., the OH to A1 ratio) is known as the basicity.

What is polyaluminum chloride used for?

Polyaluminum chlorides are used in diverse applications including catalysts, water treatment and antiperspirants. Each of these applications relies on the neutralization of PAC to form insoluble aluminum hydroxide.

What is the basicity of polyaluminum chloride?

Polyaluminum chloride (PAC) is the name given to the family of compounds defined by the formula: Where 0 < n ≤ 3m and where m ≥ 1. The degree of neutralization (i.e., the OH to A1 ratio) is known as the basicity. In the case of polyaluminum chlorides the basicity is defined by the formula n/3m.

What is Pac synthesis?

The PAC synthesis occurs under high pressure and high temperature. PolyAluminium Chloride is the product of the batch reaction between solid Aluminium Hydroxide (AL (OH) 3) and liquid Hydrochloric acid (HCI).

How does polyaluminum chloride affect the performance of electrodialysis?

Polyaluminum chloride solutions form macromolecules and this attribute adversely influences the performance of electrodialysis. The propensity of PAC solutions to form macromolecules increases as the basicity increases and or as the concentration of the PAC solution increases.