过磷酸钙混合期添加鸡粪的工艺优化  

Optimal production technology of SSP loaded with livestock manure at mixing time

作　　者：化全县[1,2] 陈静[1] 古力素木.玉素甫 汤建伟[1] 张磊[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001 [2]哈密职业技术学校,新疆哈密839000

出　　处：《磷肥与复肥》2014年第1期19-22,共4页Phosphate & Compound Fertilizer

基　　金：全国大学生创新创业训练计划资助项目(121045930)

摘　　要：为了提高磷肥利用率研究了于混合期加入鸡粪制备改性过磷酸钙的工艺。实验结果表明,影响改性过磷酸的钙磷转化率的因素大小顺序为硫酸质量分数、鸡粪用量、鸡粪细度、硫酸用量、硫酸初始温度,其最佳工艺组合为鸡粪细度0.25 mm、100 g磷矿粉鸡粪用量10 g、硫酸初始温度90℃、硫酸用量为理论值的135%、硫酸质量分数70%,实验因素的变化对磷转化率无显著性影响。SSP loaded with chicken manure （SSPCM） at mixing time is prepared for the purpose of increasing phosphorus efficiency. Results show that the factor order influencing phosphate conversion rate of SSPCM is sulfur acid concentration, addition dosage of chicken manure, fineness of chicken manure, consumption and initial temperature of sulfur acid solution. The optimal condition combinations are fineness of chicken manure 0.25 mm, addition dosage of chicken manure 10 g for 100 g phosphate rock, initial temperature of sulfur acid solution 90 ℃, sulfur acid consumption sulfur acid concentration 70%. The factors have no significant influence SSPCM. 135% （theoretical quantity） and on phosphate conversion rate of

关 键 词：过磷酸钙 养殖固废 鸡粪 酸解 混合期添加 

分 类 号：TQ442.1[化学工程—化学肥料工业]