Dendrimer and sodium polyepoxysuccinate composite scale inhibitor for inhibiting silica scale deposition in water
A technology of sodium polyepoxysuccinate and composite antiscalant, which is applied in the fields of descaling and water softening, chemical instruments and methods, water/sludge/sewage treatment, etc., and can solve the poor effect of silicon dioxide scale and silicon inhibition and other problems, to achieve the effect of reducing the total concentration of chemicals used, good effect, and high-efficiency silica scale deposition
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Embodiment 1
[0043] Embodiment 1: This embodiment is the preparation of the composite antiscalant of PAMAM-0G and PESA
[0044] Preparation process: 150 g of PAMAM-0G methanol solution with an effective content of 20% was evaporated to remove methanol with a vacuum rotary evaporator at a temperature of less than 50° C. to obtain about 30 g of viscous PAMAM-0G. Then add 25g of polyepoxysuccinate sodium (PESA) with a solid content of 40% and 45g of deionized water, and stir evenly to obtain 100.00 g of a composite silicon and scale inhibitor with a solid content of 40%. In the prepared composite silicon scale inhibitor, the effective concentration of PAMAM-0G is 30%, and the effective concentration of sodium polyepoxysuccinate is 10%.
[0045] The compound antiscalant prepared above was subjected to the performance test of static silica scale inhibition. After the experiment, the solution was clear and transparent without white flocculent deposits. The soluble silica content is shown in Tabl...
Embodiment 2
[0046] Embodiment 2: This embodiment is the composite antiscalant preparation of PAMAM-0G and PESA
[0047]Preparation process: 137.5 g of PAMAM-0G methanol solution with an effective content of 20% was evaporated to remove methanol with a vacuum rotary evaporator at a temperature of less than 50° C. to obtain about 27.5 g of viscous PAMAM-0G. Then add 31.25g of polyepoxysuccinate sodium (PESA) with a solid content of 40% and 41.25 g of deionized water, and stir evenly to obtain 100.00 g of a composite silicon and scale inhibitor with a solid content of 40%. In the prepared composite silicon scale inhibitor, the effective concentration of PAMAM-0G is 27.5%, and the effective concentration of sodium polyepoxysuccinate is 12.5%.
[0048] The compound antiscalant prepared above was subjected to the performance test of static silica scale inhibition. After the experiment, the solution was clear and transparent without white flocculent deposits. The soluble silica content is shown ...
Embodiment 3
[0049] Embodiment 3: This embodiment is the composite scale inhibitor preparation of PAMAM-0G and PESA
[0050] Preparation process: 125g of PAMAM-0G methanol solution with an effective content of 20% was evaporated to remove methanol at a temperature of less than 50°C with a vacuum rotary evaporator to obtain about 25g of viscous PAMAM-0G. Then add 37.5 g of polyepoxysodium sodium epoxysuccinate (PESA) with a solid content of 40% and 37.5 g of deionized water, and stir evenly to obtain 100.00 g of the required composite silicon and scale inhibitor with a solid content of 40%. In the prepared composite silicon scale inhibitor, the effective concentration of PAMAM-0G is 25%, and the effective concentration of sodium polyepoxysuccinate is 15%.
[0051] The compound antiscalant prepared above was subjected to the performance test of static silica scale inhibition. After the experiment, the solution was clear and transparent without white flocculent deposits. The soluble silica co...
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