摘要
研究了铬酸钠共存时对铝酸钠溶液种分的影响.结果表明,含有铬酸钠的铅酸钠溶液中,铝铬比(Al/Cr)大于3.6时,铬酸钠的存在对铝酸钠种分没有明显影响;铝铬比(Al/Cr)小于1.8时,铬酸钠的存在对铝酸钠种分有明显影响.本文还试验了选择一定组成的实际铝酸钠溶液,经种分,使铬酸钠与铝酸钠完全得到了有效分离.
The effect of Na2CrO4 on NaAl(OH)4 solution hydrolysis had been studied. Results showed that coexistence of Na2CiO4has no effect on NaAl(OH)4 solution hydrolysis in NaAl(OH)4 solution con-tatining Al and Cr ratio more than 3.6, but has a great effect on NaAl(OH)4 solution hydrolysis in NaAl (OH )4 solution containing Al and Cr ratio less than 1.8. The hydrolysis of practical NaAl(OH)4 solution with certaing composition was measured, the result was obtained that NaAl(OH)4 and Na2CrO4 were completely separated.
出处
《环境化学》
CAS
CSCD
北大核心
2000年第5期470-473,共4页
Environmental Chemistry
关键词
铬酸钠
铝酸钠
水解
分离
清洁生产
sodium aluminate, sodium chromate, hydrolysis, separation.
