| abstract |
A long-acting water-coal-slurry stabilizer is prepared from the following raw materials in parts by weight: 16-32 parts of modified attapulgite, 2-4 parts of galacturonic acid, 3-5 parts of 1,2-benzisothiazolin-3-one, 8-12 parts of sodium lignin sulfonate, 2.5-3 parts of water-soluble polysaccharide, 20-30 parts of water, 12-16 parts of mercaptoacetic acid 2-ethylhexyl acrylate, 3-6 parts of diallydimethylammonium chloride-acrylamide polymer, 6-9 parts of xanthan gum, 4-8 parts of sodium polyacrylate, 4-6 parts of modified cellulose, 3-7 parts of carboxyethyl cellulose, and 3-6 parts of polyethyleneglycol. The long-acting water-coal-slurry stabilizer has the beneficial effects that the long-acting water-coal-slurry stabilizer cannot produce sand sedimentation and has excellent dispersing effect, water-coal-slurry can be wetted fully, viscosity is reduced effectively, thermal stability is good, the stabilizer is easy to store, and acting time is long. |