This invention discloses a method for producing metal hydroxide-alginate particles without complicated procedures such as grinding. Metal hydroxide-alginate particles with uniform particle size can be produced by this invention. The method comprises: forming alginate salt droplets from an alginate salt solution by using an injection device, dropping the alginate salt droplets into a metal chloride solution to form metal ion-alginate particles, and putting the metal ion-alginate particles into a sodium hydroxide solution to form metal hydroxide-alginate particles.一種金屬氫氧化物-海藻酸微粒的製備方法,其無須進行研磨等複雜步驟,即可以製得粒徑均一之金屬氫氧化物-海藻酸微粒者。本發明之金屬氫氧化物-海藻酸微粒的製備方法包含:將一海藻酸鹽溶液經一注射裝置形成一海藻酸鹽微液滴;將該海藻酸鹽微液滴滴入一金屬氯化物溶液中,以形成一金屬離子-海藻酸微粒;續將該金屬離子-海藻酸微粒置於一氫氧化鈉溶液中,以形成一金屬氫氧化物-海藻酸微粒。
