苯丙酮酸钠盐结晶过程  

CRYSTALLIZATION PROCESS OF PHENYLPYRUVIC ACID SODIUM SALT

作　　者：范伟平[1] 吴月[1] 欧阳平凯[1] 朱建良[1] 

机构地区：[1]南京化工大学生物工程与科学系,南京210009

出　　处：《化工学报》1998年第1期87-91,共5页CIESC Journal

基　　金："九五"国家科委重点攻关项目

摘　　要：The mixing-precipitation process for producing phenylpyruvic acid sodium salt(PPNa) by neutralization of phenylpyruic acid(PPA) with aqueous sodium hydroxide in a semi-batch stirred tank was studied.The effects of mixing characteristics and chemical characteristics on the precipitation process were investigated experimentally.It was found that the crystals growth rate and morphology obviously changed due to ripening.Crystal redissolution agglomeration and solvent inclusion also changed the purity of PPNa product considerably.The mixing-precipitation process for producing phenylpyruvic acid sodium salt(PPNa) by neutralization of phenylpyruic acid(PPA) with aqueous sodium hydroxide in a semi-batch stirred tank was studied.The effects of mixing characteristics and chemical characteristics on the precipitation process were investigated experimentally.It was found that the crystals growth rate and morphology obviously changed due to ripening.Crystal redissolution agglomeration and solvent inclusion also changed the purity of PPNa product considerably.

关 键 词：半连续反应器 PPNa 结晶 苯丙酮酸钠 

分 类 号：TQ131.12[化学工程—无机化工]