Calcium iodate as feed additive was prepared in this paper.With the medium of hydrochloric acid, iodine was oxidated by potassium chlorate, and then neutralized with calcium hydroxide.

• 用碘为原料，在盐酸介质中经氯酸钾氧化后，用氢氧化钙中和制得饲料级磺酸钙。