摘要
合成N-十二烷基-β-氨基丙酸甲酯、N-辛烷基-β-氨基丙酸甲酯、N-十二烷基-13-氨基甲基丙酸甲酯和N-辛烷基-β-氨基甲基丙酸甲酯4种氨基酯基型两性捕收剂。研究了4种浮选捕收剂对钾长石和石英的浮选性能和作用机理。试验表明，在pH为5．0～6．0的弱酸性范围内，N-十二烷基-β-氨基甲基丙酸甲酯用量为180mg／L的条件下，石英的浮选回收率可达到100％，用量为35．7mg／L时，石英比钾长石的回收率高出近50％以上。氨基酯基型两性捕收剂使钾长石、石英的Zeta电位朝较小负值的方向变化。随着捕收剂的碳链增长和支链基团的引入，合成药剂对石英矿物捕收性能增强。
Synthetise four amino ester-based amphoteric collector of N-dodecyl-β-amino propionic acid methyl ester, N-octyl-β-amino propionic acid methyl ester, N-dodecyl-β-amino-methyl-propionic acid methyl ester and N-octyl-β-amino-methyl-propionic acid methyl ester. Research collector on flotation behaviour and Mechanism of K-feldspar and quartz. Tests showed that in the weakly acidic range of pH 5. 0 to 6.0, and under the conditions of the 180 mg/L dosage of N-dodecyl-β-amino-methyl-propionic acid methyl ester, recovery rate of quartz flotation can reach 100%, and under the conditions of the 35.7 mg/ L, the recovery rate of quartz nearly 50% higher than K-feldspar. Amino ester gender-based collector makes Zeta potential of K-feldspar and quartz toward smaller negative change. With the introduction of carbon chain and branched groups of the collector, collector performance of the compounding pharmaceutical enhance on quartz.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2014年第1期181-185,共5页
Bulletin of the Chinese Ceramic Society
