The invention discloses water-absorbing resin
dry glue powder and application thereof in demulsification of oil-water
emulsion. The
dry glue powder is prepared from the following raw materials in percentage by weight: 10-40% of
acrylic acid, 5-20% of
sodium hydroxide, 0.5-8% of N-methylolacrylamide, 0.5-5% of
ammonium peroxydisulfate, 0.5-2% of
sodium sulfite and the balance being water; all the raw materials, except
acrylic acid, are prepared into a water solution, a
sodium hydroxide water solution reacts with
acrylic acid, the
neutralization degree is controlled to be 60-85%, then the solution of N-methylolacrylamide,
ammonium peroxydisulfate and
sodium sulfite is added to react at the temperature of 50-80 DEG C to produce hydrogel; and the hydrogel is
cut into small pieces and dried ina
drying oven, and the dried hydrogel pieces are smashed into the water-absorbing resin
dry glue powder. The water-absorbing resin dry glue powder is added in
emulsion and can spontaneously absorb water to expand through mechanical stirring so as to dehydrate the
emulsion and realize demulsification. The water-absorbing resin dry glue powder is simple to prepare and easy for industrial production;
dehydration and demulsification operations are convenient to implement and have low
equipment requirement; and a water-absorbing material has high
dehydration capability and is easy to separate and recycle, and can be recycled.