| Budget Amount *help |
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2011: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2010: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2009: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
|
|---|
| Research Abstract |
A new liquid-liquid countercurrent extractor with Taylor-Couette flow was proposed and following three research subjects to improve the extraction performance were studied
(1) Increasing the stability of oil-water countercurrent flow
(2) Highly efficient extraction using oil-water emulsion
(3) Scale-up of extractor and feasibility of total extraction process
As a result, we made clear the chemico-physical properties of oil phase, water phase and inner rotor surface, which were required for the formation of suitable countercurrent flow with highly dispersed oil. By stabilizing the Taylor-Couette flow with oil-water emulsion by the addition of a small amount of PEG(poly-ethyleneglycol), the high-speed extraction with high theoretical stages more than 10 stages were attained. Finally the scale-up tests were carried out. By the use of larger extractor, the increase of theoretical stages was observed for the positive extraction and the high recovery rate for the back extraction
|
