Hydrophobic cation polymeric flocculant and preparation method and application thereof
A polymer flocculant and cation technology, which is used in dewatering/drying/concentrating sludge treatment, etc., can solve the problems such as the inability to effectively improve the dewatering rate of the sediment, the difficulty in drying the dredged sediment quickly, and the poor hydrophobicity. , to achieve the effect of wide range of use, good flocculation effect and strong hydrophobicity
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[0022] Example 1:
[0023] Add acrylamide, methacryloxyethyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, urea, and deionized water into a four-necked flask, stir and increase the temperature and add octadecyl vinyl Ether, add the initiator (a mixture of ammonium persulfate and sodium bisulfite with a mass ratio of 2:1) after vigorous stirring, and react for 4 hours to prepare a hydrophobic cationic polymer flocculant. The reacted acrylamide and methyl The total amount of acryloxyethyl trimethyl ammonium chloride and octadecyl vinyl ether is recorded as the total monomer content. The acrylamide content accounts for 89.5 mol% of the total monomer content. The content of methyl ammonium chloride accounts for 10 mol% of the total monomers, the content of cetyl trimethyl ammonium bromide accounts for 6 wt% of the total monomers, and the urea content accounts for 2 wt% of the total monomers. The weight ratio to deionized water is 20:80, the octadecyl vinyl ether con...
Example Embodiment
[0030] Example 2:
[0031] Add acrylamide, methacryloyloxyethyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, urea, and deionized water into a four-neck flask, stir and heat up and add octadecyl acrylate, strong After stirring, add an initiator (a mixture of ammonium persulfate and sodium bisulfite with a mass ratio of 2:1), and react for 4 hours to prepare a hydrophobic cationic polymer flocculant. The reacted acrylamide and methacryloyloxy The total amount of ethyl trimethyl ammonium chloride and octadecyl vinyl ether is recorded as the total monomer amount, in which the acrylamide content accounts for 86.5 mol% of the total monomer amount, and the methacryloxyethyl trimethyl chloride The ammonium content accounts for 10mol% of the total monomers, the cetyltrimethylammonium bromide content accounts for 6wt% of the total monomers, and the urea content accounts for 2wt% of the total monomers. The total monomer content and deionization The weight ratio of water i...
Example Embodiment
[0038] Example 3:
[0039] Add acrylamide, methacryloxyethyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, urea, and deionized water into a four-necked flask, stir and heat up and add octadecyl acrylate. After stirring, add an initiator (a mixture of ammonium persulfate and sodium bisulfite with a mass ratio of 2:1), and react for 4 hours to prepare a hydrophobic cationic polymer flocculant. The reacted acrylamide and methacryloyloxy The total amount of ethyl trimethyl ammonium chloride and octadecyl vinyl ether is recorded as the total monomer content, in which the acrylamide content accounts for 56.5 mol% of the total monomer content, and methacryloxyethyl trimethyl chloride The ammonium content accounts for 40mol% of the total monomers, the cetyltrimethylammonium bromide content accounts for 6wt% of the total monomers, and the urea content accounts for 2wt% of the total monomers. The total monomer content and deionization The weight ratio of water is 20:80, t...
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