The method and principle of sodium silicate solution removal natrium silicate

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For various kinds of pollutants, we can take on various methods of elimination methods. Here are a number of typical approaches and concepts of sodium silicate solution.

Precipitation method

The precipitation method is an approach that makes use of impurities ions to respond with certain chemical reagents to produce hard precipitation so as to remove it from the sodium silicate solution. For example, for metal ions such as iron ions and aluminum ions, alkaline reagents such as sodium hydroxide or potassium hydroxide can be contributed to develop it. The response formula is as complies with:

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 included in create carbonate rainfall. The reaction equation is as adheres to:

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

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

The rainfall approach is easy and the expense is low, yet you require to take notice of the quantity and response conditions of the debris to guarantee that the contaminations ions can be totally precipitated.

Ion exchange method

The ion exchange technique is to selectively adsorb and trade the ions in the remedy with an ion exchange material to eliminate the technique of pollutants ions. Ion exchange resin is a polymer product with an ion exchange feature. It can exchange reactions with the ion in the solution, absorb impurities ions to the resin, and keep the helpful ions in salt ions in sodium silicate option in the solution.

The ion exchanges are excellent and can remove a selection of pollutants ions, yet the cost of ion exchange material is greater, and regeneration is required consistently.

Membrane layer splitting up

The membrane layer separation technique uses the semi-diaphragm to selectively pass through the various components in the remedy so as to achieve the method of separation and removal. Depending upon the diameter size and separation principle of the membrane layer, the membrane splitting up technique can be divided right into a number of kinds, such as microfiltration, ultrafiltration, filtration and turn around osmosis.

For impurities such as insoluble strong granules and macromolecular raw material in salt silicate solution, mini fillets or ultrafiltration membrane layers can be used for getting rid of; contaminations ions of some small particles can be eliminated with the filtering or turn around osmosis membrane. The membrane layer splitting up technique has the benefits of basic operation, high splitting up effectiveness, and low power consumption.

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