当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2015年
2期
237-239
,共3页
牡蛎壳%乳酸钙%影响因素%正交实验
牡蠣殼%乳痠鈣%影響因素%正交實驗
모려각%유산개%영향인소%정교실험
Oysters shells%Calcium lactate%Influencing factor%Orthogonal design
用废弃的牡蛎壳生产食品级乳酸钙，是一种变废为宝的方法。通过单因素和正交实验分析探讨了壳粉粒径、壳酸比、水壳比、反应时间对乳酸钙产品收率的作用规律和影响大小，并借助正交实验对其工艺条件进行了系统优化。结果表明，壳酸比、水壳比和反应时间这3个关键因素对该反应的影响最为显著，生产乳酸钙的最适宜条件为：壳酸比为1.1，水壳比为15，反应时间为150 min，此条件下的乳酸钙收率可达98.28%。
用廢棄的牡蠣殼生產食品級乳痠鈣，是一種變廢為寶的方法。通過單因素和正交實驗分析探討瞭殼粉粒徑、殼痠比、水殼比、反應時間對乳痠鈣產品收率的作用規律和影響大小，併藉助正交實驗對其工藝條件進行瞭繫統優化。結果錶明，殼痠比、水殼比和反應時間這3箇關鍵因素對該反應的影響最為顯著，生產乳痠鈣的最適宜條件為：殼痠比為1.1，水殼比為15，反應時間為150 min，此條件下的乳痠鈣收率可達98.28%。
용폐기적모려각생산식품급유산개，시일충변폐위보적방법。통과단인소화정교실험분석탐토료각분립경、각산비、수각비、반응시간대유산개산품수솔적작용규률화영향대소，병차조정교실험대기공예조건진행료계통우화。결과표명，각산비、수각비화반응시간저3개관건인소대해반응적영향최위현저，생산유산개적최괄의조건위：각산비위1.1，수각비위15，반응시간위150 min，차조건하적유산개수솔가체98.28%。
It’s a very efficient approach to produce food grade calcium lactate from wasted oysters shells by direct method. Single factor experiments and variance analysis of main factors were adopted to explore the action law and influence level of particle size of shell powder, shell-acid ratio, water-shell ratio and reaction time on the content and yield of products. The process condition was systemically optimized in virtue of multi-target orthogonal design. The experimental results show that the reaction can be prominently affected by three key factors including shell-acid ratio, water-shell ratio and reaction time. The optimum production conditions are as follows: shell-acid ratio 1.1, water-shell ratio 15 and reaction time 140 min. Under above conditions, the yield of calcium lactate products can reach to 98.28%.
