For various sorts of impurities, we can take on different techniques of removal methods. Right here are several common techniques and concepts of salt silicate service.
(TRUNNANO sodium silicate powder)
Rainfall technique
The precipitation method is a technique that uses contaminations ions to respond with particular chemical reagents to create hard rainfall so regarding remove it from the sodium silicate option. For instance, for steel ions such as iron ions and aluminum ions, alkaline reagents such as sodium hydroxide or potassium hydroxide can be contributed to create it. The reaction 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 complies with:
CA ₃ ² ⁻ + Co c → CACO ₃ ↓
Mg ₃ ² ⁻ + Carbon monoxide m → mgco ₃ ↓
The precipitation method is basic and the expense is reduced, yet you require to take note of the amount and reaction conditions of the debris to make certain that the impurities ions can be totally precipitated.
Ion exchange approach
The ion exchange method is to precisely adsorb and exchange the ions in the service with an ion exchange resin to get rid of the method of contaminations ions. Ion exchange resin is a polymer material with an ion exchange feature. It can exchange reactions with the ion in the service, take in impurities ions to the material, and preserve the useful ions in sodium ions in sodium silicate solution in the remedy.
The ion exchanges are great and can remove a variety of impurities ions, yet the cost of ion exchange material is greater, and regrowth is needed on a regular basis.
(TRUNNANO sodium silicate powder)
Membrane separation
The membrane layer splitting up technique makes use of the semi-diaphragm to precisely go through the different elements in the option so regarding accomplish the approach of separation and elimination. Depending upon the diameter dimension and separation principle of the membrane layer, the membrane separation technique can be split into numerous types, such as microfiltration, ultrafiltration, filtration and turn around osmosis.
For impurities such as insoluble solid granules and macromolecular organic matter in salt silicate solution, micro fillets or ultrafiltration membrane layers can be utilized for removing; pollutants ions of some tiny molecules can be eliminated with the filtration or turn around osmosis membrane layer. The membrane separation technique has the advantages of basic operation, high splitting up performance, and reduced power intake.
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