High efficiency flacculant for carbon black containing heavy oil gasifying waste liquid and its prepn and application
A flocculant and carbon black technology, which is applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, natural water treatment, etc., can solve the problems of unreachable water SS, unstable operation, high treatment cost, etc., and occupy an area The effects of area reduction, low operating cost, and project investment reduction
Examples
Embodiment 1
[0031] Select the relative molecular mass at 3.0×10 7 ~8.0×10 7 Between 1000 parts of polyacrylamide monomer and 8914 parts of water, prepare a monomer solution with a certain concentration, add 5 parts of EDTA-2Na, 1 part of ammonium persulfate, 15 parts of phosphoric acid and other initiators, after filling nitrogen and driving oxygen, React at a temperature of 10-40°C for 0.5-1.0h. When the reactant is viscous, add 15 parts of formaldehyde and 50 parts of acetaldehyde to the viscous liquid, and then add H 3 PO 4 25 parts, acid-catalyzed at 40-65°C for 6-8 hours, the rubber blocks were granulated, dried, and crushed to obtain a relative molecular mass of 3.2×10 7 ~8.1×10 7 The N-diphosphonoethyl-methacrylamide product (codenamed NPP).
[0032] Weigh 2.5 grams of NPP and 0.2 grams of PAS to make a 0.25% NPP solution, add 10ml to each liter of carbon black slurry; after adding NPP, stir rapidly for 2 to 5 minutes to fully mix NPP and wastewater, and then slowly Stir for 3...
Embodiment 2
[0034] Select the relative molecular mass at 3.0×10 7 ~8.0×10 7 Between 750 parts of polyacrylamide monomer and 9127 parts of water, a monomer solution with a certain concentration was prepared, and 15 parts of EDTA-2Na, 3 parts of ammonium persulfate, 25 parts of phosphoric acid and other initiators were added, and after filling nitrogen to drive oxygen, React at a temperature of 10-40°C for 0.5-1.0h. When the reactant is viscous, add 35 parts of formaldehyde and 35 parts of acetaldehyde to the viscous liquid, and then add H 3 PO 4 25 parts, acid-catalyzed at 40-65°C for 6-8 hours; the rubber block was granulated, dried, and crushed to obtain a relative molecular mass of 3.2×10 7 ~8.1×10 7 The N-diphosphonoethyl-methacrylamide product (codenamed NPP).
[0035] Weigh 2.5 grams of NPP and 0.2 grams of PAS, stir, and make a 0.25% NPP solution, add 20ml to each liter of carbon black slurry, first stir rapidly for 2-5 minutes, and then stir slowly for 3-5 minutes to make the f...
Embodiment 3
[0037] Select the relative molecular mass at 3.0×10 7 ~8.0×10 7 Between 500 parts of polyacrylamide monomer and 9355 parts of water, a monomer solution with a certain concentration was prepared, and 25 parts of EDTA-2Na, 5 parts of ammonium persulfate, 40 parts of phosphoric acid and other initiators were added, and after filling nitrogen to drive oxygen, React at a temperature of 10-40°C for 0.5-1.0h. When the reactant is thick, add 50 parts of formaldehyde and 15 parts of acetaldehyde to the viscous liquid, and then add H 3 PO 4 10 parts, acid-catalyzed at 40-65°C for 6-8 hours; the rubber block was granulated, dried, and crushed to obtain a relative molecular mass of 3.2×10 7 ~8.1×10 7 The N-diphosphonoethyl-methacrylamide product (codenamed NPP).
[0038] Weigh 2.5 grams of NPP and 0.2 grams of PAS to make a 0.25% NPP solution, add 40ml to each liter of carbon black slurry, first stir rapidly for 2-5 minutes, then slowly stir for 3-5 minutes to make the flocs larger ....
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Abstract
Description
Claims
Application Information
- IPC
- C02F1/52; C02F103/34
- Inventors
- 吉京甲; 李泽权