Scale-up of the Solid−Liquid Extraction Using Characteristic Function Technique

Autor:	I. Pentchev, I. Seikova, E. Simeonov, A. Mintchev
Rok vydání:	2004
Předmět:	Materials science Characteristic function (probability theory) General Chemical Engineering Mass transfer Yield (chemistry) Extraction (chemistry) SCALE-UP General Chemistry Solid phase extraction Screw extractor Biological system Industrial and Manufacturing Engineering Variable (mathematics)
Zdroj:	Industrial & Engineering Chemistry Research. 43:4903-4907
ISSN:	1520-5045 0888-5885
DOI:	10.1021/ie030650m
Popis:	A scale-up methodology based on the characteristic function approximation for the mass-transfer rate is proposed that provides a reliable and inexpensive method for designing and controlling an extraction apparatus. The characteristic function is derived in terms of the usual kinetic and equilibrium parameters. An analytical expression for the overall resistance to mass transfer is also obtained, providing a linearly variable mass-transfer resistance during the extraction. Experimental data for the kinetics of extraction in a laboratory-scale batch extractor from four solid−liquid systems are presented and discussed in relation to the theory. The calculation procedure is applied to estimate the extraction times in a continuous-action apparatus corresponding to an assigned extraction yield. The calculation results are also supported by experiments in a pilot screw extractor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d7df4399fabe4a4caac51a2c0f7e4b8 https://doi.org/10.1021/ie030650m Zobrazit plný text záznamu