| 摘要 |
The invention discloses a nano iron phosphate micro chemical preparation method and nano iron phosphate. The method comprises the following steps of: S1, respectively dissolving soluble iron salt and phosphate into deionized water according to a ratio that Fe: P=1:(0.8-1.2), wherein the concentrations of solutions are both 0.1-1mol/L, and the final volume parts of an iron salt solution and a phosphate solution are the same; S2, weighing and dissolving a surfactant which can theoretically generate 1wt.%-10wt.% of iron phosphate into the iron salt solution; S3, dropwise adding ammonia water into the phosphate solution, and regulating the pH to be 8-10; S4, regulating the rotation speed of a mechanical pump to be 10-300 rounds/minute, simultaneously adding the same flow of the iron salt solution and the phosphate solution into a microreactor of a micro chemical system to react for 10-60 minutes, and thus obtaining a turbid liquid; and S5, filtering and separating the turbid liquid, washing and drying at 70-90 DEG C so as to obtain spherical nano iron phosphate. The method can be used for preparing the nano iron phosphate with regular shape, good dispersibility, uniform size distribution and high reactivity. |
