TY - GEN
T1 - Separation of a mixture of rare earth fluorescent powders by two-liquid flotation using polar and non-polar organic solvents for recycling
AU - Otsuki, A.
AU - Dodbiba, G.
AU - Fujita, T.
PY - 2007
Y1 - 2007
N2 - The general conclusion of this work is that the two-liquid flotation using organic phases is an effective method to separate fluorescent powders. After selecting suitable non-polar and polar solvents (i.e. n-heptane and DMF), the effect of surfactant concentration was investigated. Then, the two-stage two-liquid flotation was carried out. In the first stage, the green powder was separated in the presence of DAA (2×10-4 mol L-1) whereas in the second stage, the blue powder was separated from red powder; in the presence of sodium 1-octanesulfonate (2×10-4 mol L -1). Experimental results indicated that the grade and recovery of each product was between 90 and 95%, whereas efficiency reached at ca. 63%.
AB - The general conclusion of this work is that the two-liquid flotation using organic phases is an effective method to separate fluorescent powders. After selecting suitable non-polar and polar solvents (i.e. n-heptane and DMF), the effect of surfactant concentration was investigated. Then, the two-stage two-liquid flotation was carried out. In the first stage, the green powder was separated in the presence of DAA (2×10-4 mol L-1) whereas in the second stage, the blue powder was separated from red powder; in the presence of sodium 1-octanesulfonate (2×10-4 mol L -1). Experimental results indicated that the grade and recovery of each product was between 90 and 95%, whereas efficiency reached at ca. 63%.
UR - http://www.scopus.com/inward/record.url?scp=47349100917&partnerID=8YFLogxK
U2 - 10.1109/IMNC.2007.4456191
DO - 10.1109/IMNC.2007.4456191
M3 - Conference contribution
AN - SCOPUS:47349100917
SN - 4990247248
SN - 9784990247249
T3 - Digest of Papers - Microprocesses and Nanotechnology 2007; 20th International Microprocesses and Nanotechnology Conference, MNC
SP - 236
EP - 237
BT - Digest of Papers - Microprocesses and Nanotechnology 2007; 20th International Microprocesses and Nanotechnology Conference, MNC
T2 - s20th International Microprocesses and Nanotechnology Conference, MNC 2007
Y2 - 5 November 2007 through 8 November 2007
ER -