General principles of supercritical fluid extraction technology to raise efficiency are summarized and concluded in this paper. It generalized the present domestic situation of relative research and developed proposals towards kind of charging and discharging continuous components by a new supercritical fluid extraction .It also introduced structures and working principles of device. Keywords— ...

metal complexes, but is useful in the case of metal complexes with low extractability. This process has thus been applied to the separation of metals, which is difficult by conventional batch extraction.1 Extraction reagents (HR) are usually consumed in amounts several hundred times those of metals (M). Complexes to be extractable into an organic solvent {MRn·(HR)m} are not always obtained usin...

In this study, the effect of operating parameters on dispersed phase holdup in liquid-liquid extraction process has been investigated. Three chemical systems (Toluene/Water, Butyl acetate/Water, and n-Butanol/Water) were utilized and holdup was considered in a wide range of interfacial tensions through a Scheibel extraction column. Various rotor speeds were examined on the certain velocities of...

Solid-liquid extraction is carried out from vegetable substrates in industrial continuous counter-current extractor. A batch study was conducted to obtain the extraction kinetic and the bulk phase saturation. An extraction model is proposed and compared with experimental data. This model is based on the general diffusion model including a shape factor of solid particle. A methodology for the ba...