液体型锌硼体系水溶肥料稳定性初探  

Initial Exploration of Stability of Liquid-Form Zinc-Boron System Water-Soluble Fertilizer

作　　者：蒋伟[1,2] 韩效钊[1,2] 陆亚玲[1,2] 陈敏[1,2] 徐超[1,2] 孔祥云[3,2] 

机构地区：[1]合肥工业大学化学工程学院,230009 [2]合肥工业大学金地肥业技术研发中心,230009 [3]安徽金地肥业有限责任公司,舒城231300

出　　处：《化肥工业》2011年第4期23-25,共3页Chemical Fertilizer Industry

基　　金：农业科技成果转化资金(2008GB23600459)

摘　　要：开展了液体型锌硼体系水溶肥料稳定性的研究,考察了反应物配比、pH、温度和静置时间对体系稳定性的影响。试验结果表明:硼砂含量增加至一定程度,体系出现沉淀,且随着pH提高,沉淀量增加。当pH≤5时,沉淀物为H3BO3;当pH=6时,沉淀物为Zn(OH)2和Zn(HSO4)2。在pH=3时,常温和50℃静置过程中均会发生化学反应而生成水不溶物Zn[B3O3(OH)5].H2O;但一定时间后,体系都能达到稳定状态。A study is carried out of the stability of a liquid-form zinc-boron system water-soluble fertilizer, and an investigation of the effect of the reactant proportioning, pH, temperature and static storage time on the stability of the system. The experimental results show that when the borax content increases to a certain extent, precipitation appears in the system, and precipitation increases with the increase in the pH. At pH ≤5 the precipitate is H3BO3, at pH =6, Zn（OH）2 and Zn（HSO4）2 settle down. At pH = 3, norml temperature or 50℃ chemical reaction occurs on standing to give waterinsoluble Zn[B3O3（OH）5]·H2O, but after a certain time the system is able to reach a stable state.

关 键 词：水溶肥料 稳定性 探讨 

分 类 号：TQ610.495[化学工程—精细化工]