Organic high molecular composite flocculant and preparation method thereof
A technology of organic macromolecule and composite flocculant, applied in dewatering/drying/concentrating sludge treatment and other directions, can solve the problems of waste of chemicals and complex treatment process, and achieve the effects of sufficient sources, reasonable preparation and low cost
Examples
Embodiment 1
[0035] Into the 4-ton reactor, the required amount of tap water was added sequentially as a dispersant, and the stirring speed was 65 rpm. Add 16 kg of oxidized starch, add 80 kg of polydimethyldiallyl ammonium chloride (content 40%, intrinsic viscosity 80mL / g), add polyacrylamide (powder solid, ion degree 70% , molecular weight 6 million) 32 kg. The interval between feeding each raw material is 7 minutes, the feeding rate of polyacrylamide is 5Kg / min, and the polyacrylamide is dispersed into the reactor with a high-pressure water gun at the same time. After adding water to the calibrated volume, stir. The total compounding time is 1.5 hours. The compounding temperature in the reactor is 10°C. The polyacrylamide particles are uniformly dispersed and swelled into small micelles of 0.5-2cm until the molecular weight of the liquid reaches 6 million. Reaching 80%, that is, a liquid organic polymer composite flocculant with an effective content of 2% in dry weight of raw materials...
Embodiment 2
[0038] Into the 4-ton reactor, the required amount of tap water was sequentially added as a dispersant, and the stirring speed was 50 rpm. Add 10 kg of phosphate starch, add 54.5 kg of polydimethyldiallyl ammonium chloride (35% content, intrinsic viscosity 100mL / g), and add polyacrylamide A (powder solid, ionic 30%, molecular weight 12 million) 128 kg, add polyacrylamide B (powder solid, ionicity 80%, molecular weight 5 million) 32 kg. The interval between feeding each raw material is 10 minutes, the feeding rate of polyacrylamide is 8Kg / min, and the polyacrylamide is dispersed into the reactor with a high-pressure water gun at the same time. After adding water to the calibrated volume, stir. The total compounding time is 3 hours. The compounding temperature in the reactor is 50°C. The polyacrylamide particles are uniformly dispersed and swelled into small micelles of 0.5-2cm until the molecular weight of the liquid reaches 10 million. Reaching 50%, that is, a liquid organic ...
Embodiment 3
[0041] Into the 4-ton reactor, add the required amount of tap water as a dispersant in sequence, and the stirring speed is 80 rpm. Add 18 kg of cross-linked starch, add 3.6 kg of polydimethyldiallyl ammonium chloride (55% content, intrinsic viscosity 130mL / g), and add polyacrylamide A (powder solid, ionic 40%, molecular weight 10 million) 10 kg, add polyacrylamide B (powder solid, ionicity 60%, molecular weight 8 million) 10 kg. The interval between feeding each raw material is 5 minutes, the feeding rate of polyacrylamide is 3Kg / min, and the polyacrylamide is dispersed into the reactor with a high-pressure water gun at the same time. After adding water to the calibrated volume, stir. The total compounding time is 0.5 hours. The compounding temperature in the reactor is 20°C. The polyacrylamide particles are uniformly dispersed and swelled into small micelles of 0.5-2cm until the molecular weight of the liquid reaches 4 million. Reaching 40%, that is, a liquid organic polymer...
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Abstract
Description
Claims
Application Information
- IPC
- C02F11/14; C08F126/02
- Inventors
- 王刚; 赵一玲