Can calcium citrate be made from calcium carbonate

The production method of calcium citrate is mainly through the chemical reaction of citric acid and calcium carbonate. The specific production process is to mix calcium carbonate and citric acid according to a certain ratio, add an appropriate amount of water and stir evenly, then heat the mixture to 60~80°C, stir and react for 2~3 hours. Next, the reaction solution is filtered to obtain a filtrate and a precipitate, and the precipitate is washed and dried to finally obtain a calcium citrate product. Calcium citrate is widely used in the fields of food, medicine and chemical industry. For example, in the pharmaceutical industry, it can be used to prepare calcium supplement drugs, anticoagulant drugs, etc.