摘要
以丙酸和氧化锌为原料,去离子水为溶剂,在微波辐射下一步合成食品添加剂丙酸锌,并对其合成工艺条件进行了研究,同时利用红外光谱、元素分析、EDTA配位法对目标产物进行了结构表征。考察了反应温度、反应时间、配料比n丙酸:n氧化锌、去离子水量、辐射功率对丙酸锌产率的影响,在单因素实验的基础上运用Box-Behnken中心组合设计原理和响应曲面分析法优化得到的工艺条件为:反应温度80℃、配料比2.23∶1、反应时间12.31min、去离子水量约为4倍丙酸体积、辐射功率300W,丙酸锌产率可达93.70%。该方法具有合成工艺简单、反应时间短、产物产率高等特点。
With the water as the solvent,zinc propionate was synthesized from propionic acid and zinc oxide as the raw material under microwave irradiation,and the processing condition during the synthesis was studied, and the product was tested by IR spectra,Elemental Analysis and EDTA coordination method. The effects of reaction temperature,feed ratio,reaction time,deionized water,adding amount of microwave irradiation power on the yield of the Zinc propionate were investigated. The process condition was optimized by using the Box-Behnken center combination design principle and response surface methodology on the basis of single factor experiment,and the optimization results were showed that reaction temperature was 80℃,feed ratio was 2.23：1, reaction time was 12.31min,deionized water added about 4 times as propionic acid volume, microwave irradiation power was 300W,and the yield of the product could reach 93.70%. The method has various advantages,such as simple process,short time and high yield.
出处
《食品工业科技》
CAS
CSCD
北大核心
2013年第8期301-304,321,共5页
Science and Technology of Food Industry
基金
"绿色催化与反应工程"湖南省高等学校重点实验室开放课题(2009LC002)
关键词
丙酸锌
食品添加剂
微波辐射
响应曲面法
工艺条件
zinc propionate
the food additive
microwave irradiation
response surface methodology
process conditions
作者简介
陈晓宁（1986-），女，硕士研究生，研究方向：精细化学品合成。
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