A review of current techniques for the evaluation of powder mixing

被引:84
作者
Asachi, Maryam [1 ]
Nourafkan, Ehsan [1 ]
Hassanpour, Ali [1 ]
机构
[1] Univ Leeds, Sch Chem & Proc Engn, Leeds LS2 9JT, W Yorkshire, England
关键词
Powder mixing evaluation; Powder blend homogeneity; Wet techniques; Dry techniques; NEAR-INFRARED SPECTROSCOPY; EMISSION PARTICLE TRACKING; DISCRETE ELEMENT METHOD; X-RAY MICROTOMOGRAPHY; BLEND UNIFORMITY; FLUIDIZED-BED; REAL-TIME; GRANULAR-MATERIALS; RELATIVE-HUMIDITY; MIXTURE QUALITY;
D O I
10.1016/j.apt.2018.03.031
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Blending a mixture of powders to a homogeneous system is a crucial step in many manufacturing processes. To achieve a high quality of the end product, powder mixtures should be made with high content uniformity. For instance, producing uniform tablets depends on the homogeneous dispersion of active pharmaceutical ingredient (API), often in low level quantities, into excipients. To control the uniformity of a powder mixture, the first required step is to estimate the powder content information during blending. There are several powder homogeneity evaluation techniques which differ in accuracy, fundamental basis, cost and operating conditions. In this article, emerging techniques for the analysis of powder content and powder blend uniformity, are explained and compared. The advantages and drawbacks of all the techniques are reviewed to help the readers to select the appropriate equipment for the powder mixing evaluation. In addition, the paper highlights the recent innovative on-line measurement techniques used for the non-invasive evaluation of the mixing performance. (C) 2018 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
引用
收藏
页码:1525 / 1549
页数:25
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