Title: Single-step recovery of ephedrine hydrochloride from raw materials using expanded bed adsorption.
Authors: Chen, Wei-Dong; Wang, Yan-Dong; Zha, Li-hang; Ma, Guang-Hui; Su, Zhi-Guo
Abstract: Expanded bed adsorption, using a cation resin 001×7 Styrene-DVB, was used to recover and purify ephedrine hydrochloride from a powdered herb. The axial liquid-phase dispersion coefficient was about 10-5 m2 s-1 and the recovery yield and purification reached 86% and 22, respectively. Compared with using conventional extraction with dimethylbenzene, this method is safer and also more efficient.
Subjects: EPHEDRINE; BRONCHODILATOR agents; PROPANOLAMINES; CATIONS; HERBS; ADSORPTION (Chemistry)
Publication: Biotechnology Letters, 2004, Vol 26, Issue 15, p1233
ISSN: 0141-5492
Publication type: Academic Journal
DOI: 10.1023/B:BILE.0000036603.35042.70

Single-step recovery of ephedrine hydrochloride from raw materials using expanded bed adsorption.

Chen, Wei-Dong; Wang, Yan-Dong; Zha, Li-hang; Ma, Guang-Hui; Su, Zhi-Guo