Dispersion-Flocculation Behavior of Fine Lead Particles in an Organic Solvent

被引：7

作者：

Tsunekawa, Masami ^{[1
]}

Sasaki, Yuta ^{[1
]}

Nakamura, Yoshiaki ^{[1
]}

Ito, Mayumi ^{[1
]}

Hiroyoshi, Naoki ^{[1
]}

Yoo, Kyoung Keun ^{[2
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan

[2] Korea Inst Geosci & Mineral Resources, Taejon 305350, South Korea

来源：

MATERIALS TRANSACTIONS | 2008年 / 49卷 / 09期

关键词：

polyvinyl chloride (PVC) recycling; fine lead powder; dispersion-flocculation behavior; zeta potential;

D O I：

10.2320/matertrans.M-MRA2008822

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Methyl ethyl ketone (MEK) is a good solvent for polyvinyl chloride (PVC) and it has been proposed for use in PVC recycling. In the recycling process, fine particles of 3PbO.PbSO4.H2(O), used as a thermal stabilizer in PVC products, are dispersed and not dissolved in the solvent. To establish methods for removing of 3PbO.PbSO4.H2O particles from the solvent, factors affecting the dispersion-flocculation behavior of the particles in MEK were investigated. The zeta potential and particle distribution of 3PbO.PbSO4.H2O particles in MEK solutions containing known amounts of H2O were measured. Above 5 vol%H2O in MEK solutions, the zeta potential of 3PbO.PbSO4.H2O particles approached zero and the flocculation of particles was achieved. In addition, it was found that Pb2+ and Cl- affect the zeta potential of the particles. These results indicate that the dispersion-flocculation behavior of lead particles can be influenced by the concentration of H2O, Ph2+, and Cl- in MEK. [doi: 10.2320/matertrans.M-MRA2008822]

引用

页码：2119 / 2123

页数：5

共 7 条

[1]

Hunter R. J., 1981, ZETA POTENTIAL COLLO, P22

[2]

Hunter R.J., 1981, ZETA POTENTIAL COLLO, P69

[3] THE SYSTEM METHYL ETHYL KETONE WATER SEC-BUTYL ALCOHOL [J].

KARTZMARK, EM ;

CAMPBELL, AN .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1986, 31 (02) :241-246

[4] THE DETERMINATION OF VERY SMALL ELECTROPHORETIC MOBILITIES IN POLAR AND NONPOLAR COLLOIDAL DISPERSIONS USING PHASE-ANALYSIS LIGHT-SCATTERING [J].

MILLER, JF ;

SCHATZEL, K ;

VINCENT, B .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1991, 143 (02) :532-554

[5]

*MIZ IND CHEM LTD, PROD INF MIZ IND CHE

[6]

SOLVAY SA, Patent No. 11310660

[7]

*VIN ENV COUNC, 2005, PVC FACT BOOK, P53

← 1 →