recycling;
poly(ethylene terephthalate);
sulfuric acid;
hydrolysis;
metal ions;
HYDROLYSIS;
D O I:
暂无
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Poly(ethylene terephthalate) has been hydrolyzed in sulfuric acid using various additives (Fe2+, Fe3+, Ni2+, Pb2+, Zn2+) in order to investigate their influence on the reaction conversion. The addition of 5 mu M of the single ions increased the conversion; the addition of 30 mu M did not enhance the conversion more than did the addition of 5 mu M of metal ions. Iron ions seem to be the best additives which improve the reaction conversion. The use of binary ion mixtures seems to suppress the reaction and the conversion was consequently lower than in the ion free acidic solution. The ternary ion mixtures did not increase the reaction conversion.