How to prepare high concentration polyaluminum chloride?

A novel membrane distillation concentration method was used to prepare high concentration polyaluminum chloride (PACl) with high content of Al b or Al c. 2.52 mol/L PACl 1 with 88% Al b and 2.38 mol/L PACl 2 with 61% Al c were successfully prepared.

What is a polyaluminium chloride preparation method?

The invention relates to a polyaluminium chloride preparation method, which belongs to the chemical field. The polyaluminium chloride comprises the following components by weight: 100-120 parts of bauxite, 150-180 parts of 20-30% of hydrochloric acid, 60-80 parts of calcium aluminate and 20-30 parts of calcium carbonate.

How to prepare poly Aluminium chloride?

1. a preparation method for poly aluminium chloride, is characterized in that, by weight, comprises hydrochloric acid 150-180 part, calcium aluminate 60-80 part, calcium carbonate 20-30 part of bauxitic clay 100-120 part, 25-30%, comprises the following steps: (1), by bauxitic clay calcination 0.5-2h at 1200-1500 ℃, pulverize;

How Bauxite is used to prepare polyaluminium chloride?

According to the invention, bauxite is taken as a raw material to prepare polyaluminium chloride, the cost is low, and the prepared polyaluminium chloride has high degree polymerization and good adsorption effect. The invention belongs to chemical field, be specifically related to a kind of preparation method of poly aluminium chloride.

Why is polyaluminum chloride a good coagulant for water treatment?

Polyaluminum chloride (PAC) is highly effective coagulant for water treatment over conventional coagulants because of low dosage requirement, shorter flocculation time, smaller amount of sludge, high efficiency and low aluminum residual in treated water .

Does pH affect the performance of polyaluminum chloride (PAC)?

The performance of PAC was dependent on pH. The synthesized PΑC was efficient coagulant for water treatment. The present work was aimed to synthesis of polyaluminum chloride (PAC) using calcium oxide as a basification agent and optimization of process parameters on the yield of medium polymer species in PAC.