Method for preparing cauliflower-like calcium sulfite microparticles

The invention relates to a method for preparing cauliflower-like calcium sulfite microparticles. The method comprises the steps of separately preparing a calcium chloride solution of finite concentration and a sodium sulfite solution of finite concentration from calcium chloride and sodium sulfite which serve as raw materials by using water, carrying out filtrating by using filtration membranes, collecting filtrates, adding a certain volume of citric acid into the calcium chloride solution, adjusting the pH of the calcium chloride solution to 10 by using a sodium hydroxide solution, slowly adding the sodium sulfite solution into the calcium chloride solution while carrying out stirring, finally, filtrating produced calcium sulfite precipitates, carrying out centrifuging, carrying out washing with secondary distilled water and anhydrous ethanol alternately, and carrying out drying at the temperature of 60 DEG C, thereby obtaining cauliflower-like calcium sulfite. According to the method, the morphology of the