利用鸡蛋壳制备葡萄糖酸钙的研究

Study on Preparation of Calcium Gluconate from Egg Shells

以鸡蛋壳为钙源,制备葡萄糖酸钙,考察了原料配比、反应物浓度、反应温度、时间等因素对产物产量的影响。结果表明,在反应温度60℃、反应时间60min、葡萄糖酸浓度为0.75mol/L、葡萄糖酸溶液与水合物Ca(OH)2作用时,以等当量作用,产率最高。产品收率可达95%以上。

It is reported the result of using egg shells as calcium source to produce calcium gluconate.The fluence on yield by proportion of materials,concentration of reactant,time of reaction and temperature are discussed. The results show that calcium gluconate can be prepared at 60 ℃ for 60 rain with other conditions of Ca（OH）2-C6H12O7 mole ratio of 2.0 and Gluconic Acid concentration of 0.75 mol/L and the yield of calcium gluconate is more than 95%.