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个人信息Personal Information
副教授
硕士生导师
任职 : 中国无机盐工业协会硼化工分会秘书长, 全国无机盐信息总站硼化物协作组秘书长, 中国化工学会无机酸碱盐专委会硼化物专家组成员, 辽宁省硼镁资源化工与新材料工程技术研究中心副主任, 辽宁省硼镁特种功能材料制备与应用技术工程实验室副主任, 辽宁省非金属矿工业协会副会长.
性别：男
毕业院校：近畿大学
学位：博士
所在单位：化工学院
学科：化学工艺. 功能材料化学与化工
办公地点：大连理工大学西部校区化工综合楼A610
电子邮箱：jczhong@dlut.edu.cn
由偏硼酸钙生产过程中的废液制备过硼酸钠
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发表时间：2009-01-01
发表刊物：现代化工
期号：z1
页面范围：69-72
ISSN号：0253-4320
摘要：The reaction of borax with slaked lime in the water is earried out to produce talcium metaborate hexahydrate (CaO·B_2O_3·6H_2O)and the mother liquor rich in sodium metaborate which is then evaporated,concentrated and cryslallized to obtain crystals of sodium metaborate.The obtained sodium metaborate is employed to react with 30%hydrogen peroxide in the presence of stabilizer,and the resultant mixture is filtrated to obtain sodium perborate tetrahydrate.Sodium perborate tetmhydmte is dehydrated to afford sodium perborate monohydrate by rotary evaporator.The effects of raw materials mole ratio,reaction temperature,reaction time,liquid-to-sofid ratio and kinds of stabilizer on synthesis reaction and product quality are investigated.Based on experiments,the suitable processing psrameters are obtained as follows:1∶1.1 of n(NaBO_2·4H_2O)/n(H_2O_2)as reactive raw materials mole ratio,3.3∶1(mL/g)of liquid-to-solid ratio,25-30℃as reaction temperature and 60-75 min of reaction time,with polyaerylic aid as the stabilizer.The mass fraction of B_2O_3 in the product can be 22%-24%,the content (mass fraction)of NABO_3·4H_2O be more than 96%.the mass fraction of active oxygen can be above 10%and that of Fe less than 0.004%.The content(mass fraction)of active oxygen for sodium perborate monohydrate can be about 15%.
备注：新增回溯数据