Abstract
In this experiment, ultrafine iron phosphate micro-powder was prepared by hydrothermal method which used phosphate slag as an iron source. The effects of reaction temperature, surfactants type and amount on its particle size were explored. The samples were characterized by using Malvern Laser Particle Size Analyzer (MS2000), X-Ray Diffractometer (XRD), Scanning Electron Microscope (SEM) and Energy Dispersive X-Ray Spectroscopy (EDX).The results showed that at 160 °C, 1 wt%CTAB, monoclinic iron phosphate micro-powder was obtained with an average particle size about 0.4 μm which also has a good dispersion in aqueous solution.
Highlights
With the improvement of people's living standards, transportation such as cars, ships and airplanes have gradually entered our lives
The effect of hydrothermal temperature on the particle size of iron phosphate was studied under the condition of controlling the Cetyltrimethyl Ammonium Bromide (CTAB) amount to 0.4g and the feed ratio being 4:2:1:1
The X-Ray Diffractometer (XRD) test results show that the prepared iron phosphate belongs to the monoclinic system, which is a regular-sized, flat-surfaced micronsized sheet with a thickness.The thickness thereof is about 200 nm, and the average particle diameter is about 0.4 μm
Summary
With the improvement of people's living standards, transportation such as cars, ships and airplanes have gradually entered our lives. The requirements for people incorrosion resistance and service life of their metal parts have become highest than ever before[1]. In order to prevent the metal surface being corroded and improve its wear resistance, phosphating technology has been widely used in the steel industry [2]. Along with the phosphating process, the production of phosphate slag will be inevitable[6,7,8]. The production of phosphate slag reduces the quality of the workpiece, and affects the phosphating process, and if it is directly discharged, it will cause serious pollution to the soil, water and air[9,10,11,12,13]. The treatment and disposal of phosphate slag has become one of the hotspots of research in recent years
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