Method for removing boron ions in electronic-grade isopropanol

The invention belongs to the field of electronic chemicals, and discloses a method for removing boron ions in electronic-grade isopropanol. The method comprises the following steps: (1) sequentially introducing a polyhydroxy compound and isopropanol into a reactor, then adjusting the pH value in the reactor to 7-12 and the temperature to 25-100 DEG C, and reacting for 0.5-6 hours; and (2) after the reaction is finished, enabling the solution in the reactor to enter a temporary storage device, carrying out heat exchange on the solution in the temporary storage device through a heat exchanger, pumping the solution into a membrane module, and carrying out 50-DEG C constant-temperature filtration to obtain the boron-removed electronic-grade isopropanol. According to the method, boron ions in isopropanol are removed by adopting a method of combining polyhydroxy compound complexation and membrane filtration, the selectivity of raw materials is wide, the separation effect is good, automation is easy, the cost is gre