The method and principle of sodium silicate solution removal sodium metasilicate

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For different sorts of contaminations, we can embrace various techniques of removal methods. Right here are a number of typical methods and concepts of salt silicate solution.

Precipitation technique

The rainfall approach is a method that utilizes pollutants ions to react with particular chemical reagents to generate challenging precipitation so as to eliminate it from the salt silicate solution. As an example, for steel ions such as iron ions and aluminum ions, alkaline reagents such as sodium hydroxide or potassium hydroxide can be added to create it. The response formula is as follows:

Fe ⁻ + 3oh f → Fe (OH) ↓

Al ⁻ + 3oh a → Al (oh) ↓

For calcium and magnesium ions, carbonate reagents such as salt carbonate or potassium carbonate can be added to create carbonate precipitation. The response equation is as follows:

CA ₃ ² ⁻ + Carbon monoxide c → CACO ₃ ↓

Mg ₃ ² ⁻ + Carbon monoxide m → mgco ₃ ↓

The precipitation technique is simple and the expense is low, yet you need to take note of the quantity and reaction conditions of the debris to guarantee that the impurities ions can be totally precipitated.

Ion exchange approach

The ion exchange approach is to precisely adsorb and exchange the ions in the remedy with an ion exchange resin to remove the method of contaminations ions. Ion exchange resin is a polymer product with an ion exchange function. It can exchange reactions with the ion in the solution, take in pollutants ions to the material, and maintain the valuable ions in salt ions in sodium silicate option in the service.

The ion exchanges are excellent and can eliminate a range of pollutants ions, yet the rate of ion exchange material is higher, and regeneration is needed consistently.

Membrane separation

The membrane layer separation method makes use of the semi-diaphragm to uniquely pass through the various parts in the service so regarding attain the technique of splitting up and removal. Depending on the diameter dimension and splitting up concept of the membrane, the membrane splitting up technique can be separated into numerous kinds, such as microfiltration, ultrafiltration, filtration and turn around osmosis.

For contaminations such as insoluble strong granules and macromolecular raw material in salt silicate service, mini fillets or ultrafiltration membranes can be utilized for eliminating; pollutants ions of some little molecules can be gotten rid of with the filtration or reverse osmosis membrane layer. The membrane splitting up technique has the advantages of straightforward operation, high separation efficiency, and low power usage.

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