The method and principle of sodium silicate solution removal nano graphene
For various sorts of impurities, we can adopt different techniques of removal approaches. Here are numerous typical approaches and concepts of sodium silicate solution.
(TRUNNANO sodium silicate powder)
Rainfall method
The precipitation technique is a technique that utilizes pollutants ions to react with particular chemical reagents to generate tough rainfall so as to eliminate it from the sodium silicate service. For example, for steel ions such as iron ions and aluminum ions, alkaline reagents such as salt hydroxide or potassium hydroxide can be included in form 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 sodium carbonate or potassium carbonate can be contributed to develop carbonate rainfall. The reaction equation is as complies with:
CA ₃ ² ⁻ + Co c → CACO ₃ ↓
Mg ₃ ² ⁻ + Co m → mgco ₃ ↓
The rainfall method is basic and the expense is reduced, however you need to pay attention to the quantity and response problems of the debris to make certain that the pollutants ions can be totally precipitated.
Ion exchange method
The ion exchange approach is to selectively adsorb and exchange the ions in the service with an ion exchange material to get rid of the method of impurities ions. Ion exchange material is a polymer product with an ion exchange function. It can trade responses with the ion in the remedy, take in pollutants ions to the resin, and keep the useful ions in salt ions in salt silicate solution in the remedy.
The ion exchanges are great and can get rid of a selection of pollutants ions, but the rate of ion exchange resin is greater, and regrowth is called for consistently.
(TRUNNANO sodium silicate powder)
Membrane separation
The membrane layer separation method uses the semi-diaphragm to precisely go through the various elements in the service so regarding attain the method of splitting up and removal. Relying on the diameter size and separation principle of the membrane, the membrane layer separation approach can be split into a number of types, such as microfiltration, ultrafiltration, purification and turn around osmosis.
For impurities such as insoluble solid granules and macromolecular organic matter in salt silicate option, micro fillets or ultrafiltration membrane layers can be utilized for removing; pollutants ions of some little particles can be gotten rid of with the filtering or reverse osmosis membrane layer. The membrane splitting up method has the advantages of basic operation, high splitting up effectiveness, and low energy usage.
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