▎ 摘　　要

NOVELTY - Magnetic expanded absorptive composite material comprises 20-40 pts. wt. absorbent resin, 8-15 pts. wt. wood cotton-based activated carbon fiber, 8-15 pts. wt. carbon nano-tube, 8-15 pts. wt. graphene oxide, 5-10 pts. wt. metal organic framework material, 20-30 pts. wt. oxyferrite type magnetic solution, 15-25 pts. wt. magnetic powder, 3-8 pts. wt. active ingredient, 1-3 pts. wt. sodium dodecyl benzene sulfonate sulfonate and 20-30 pts. wt. solvent. USE - Magnetic expansion of absorptive composite material in acidic and alkaline solution (claimed). ADVANTAGE - The magnetic expansion of absorptive composite material is easy to process in simple manner, has good stability, high swelling degree and popularize value and large specific surface area. It has strong absorption capacity and applicability, and does not generate secondary pollution in water. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing magnetic expanded absorptive composite material, which involves: (A) mixing absorbent resin, metal organic framework material, active ingredient and sodium dodecyl benzene sulfonate sulfonate at 90-110 degrees C and reacting for 1-0.5 hours; (B) stirring reaction mixture with rotating speed of 110-180 revolutions/minute to obtain first mixture; (C) adding cotton wood based of specific active carbon fiber, graphene oxide, carbon nano tube and magnetic powder in solvent of specific gravity and oscillating for 1-3 hours; (D) precipitating, filtering and putting reaction mixture; (E) drying reaction mixture in vacuum drying box at 60-90 degrees C for 0.6-1.2 hours to obtain second mixture; (F) mixing first and second mixture and adding ferrite type magnetic solution; (G) reacting reaction mixture for 2-5 hours; (H) grinding reaction mixture and adding ethanol solution; (I) allowing reaction mixture to stand for 1-2 hours to obtain solid substance; (J) washing solid substance with water and drying at 60-90 degrees C for 0.6 -1.2 hours to obtain solid mixture; and (K) grinding solid mixture to fine powder having grain diameter of 10-100 nanometer, where fine powder is desired product.