摘要
传统的柠檬酸三钠生产工艺存在生产成本高、造成环境污染等缺点。研究了柠檬酸三钠绿色生产工艺中的影响因素。通过一系列实验研究,确定了最佳工艺条件:柠檬酸钙投料结束时,反应液的pH达到10·0以上;碳酸钠溶液的浓度为20%;反应时间为30min;反应温度为80℃。在最佳工艺条件下,柠檬酸钙的转化率达到99·7%,柠檬酸三钠的产率达到98·6%。与传统工艺相比,新工艺遵循发展循环经济的指导方针,既达到了节能减排与清洁生产的目的,同时又降低了生产成本。
The traditional production process for sodium citrate has some shortcomings,such as high production costs and resulting in environmental pollution,etc.Some factors affecting green technology for sodium citrate production were studied.Through a series of experimental studies the optimum conditions were determined in the end.The pH value of reaction solution was more than 10.0 when feeding calcium citrate ended.The appropriate concentration of sodium carbonate was 20%.Suitable reaction time was 30min.Suitable reaction temperature was 80℃.The percentage conversion of calcium citrate was up to 99.7% and the yield percentage of sodium citrate was up to 98.6% under the optimum reaction conditions.Compared with the traditional process,the new technology not only realize the energy saving and clean production,but also cut down the production cost under the guidance of the policy for the development of circular economy.
出处
《食品工业科技》
CAS
CSCD
北大核心
2010年第12期300-302,305,共4页
Science and Technology of Food Industry
关键词
食品添加剂
柠檬酸三钠
柠檬酸钙
碳酸钠
绿色生产工艺
food additive
sodium citrate
calcium citrate
sodium carbonate
green production technology
