| abstract |
The invention relates to a coal water slurry dispersing agent, in particular to a novel coal water slurry dispersing agent and a preparation method thereof. The preparation raw materials comprise, by weight, 5-50 parts of distillation-rectification residues, 600 parts of water 400-. According to the invention, the dinaphthol distillation-rectification waste residue is used for modifying the coal water slurry dispersing agent, 2-naphthol, 1-naphthol and the like in the residue are used for replacing part of phenol, sodium naphthalenesulfonate in the distillation residue is used, and active groups such as sodium naphthalenesulfonate formaldehyde polymer and high-boiling point organic matter are introduced by grafting and act on coal particles, so that the coal water slurry dispersing agent and lignin can act on the coal water slurry independently to play a good dispersing role under the mutual synergistic effect, and the adaptability and stability of the product can be greatly improved compared with the single use of the product. Meanwhile, the dinaphthol distillation residues are used for modifying the coal water slurry dispersing agent, so that resource waste and environmental pollution caused by direct treatment of the residues are avoided. |