Understanding the Crystallization Process in Detergent Formulations in the Absence and Presence of Agitation,Industrial & Engineering Chemistry Research

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Understanding the Crystallization Process in Detergent Formulations in the Absence and Presence of Agitation
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-11-16 , DOI: 10.1021/acs.iecr.8b02975
Emily Summerton ₁ , Jeanluc Bettiol ₂ , Christopher Jones ₂ , Melanie M. Britton ₃ , Serafim Bakalis _{1,

4}

Affiliation

Detergents are used on a global scale and, therefore, are exposed to a wide range of temperatures and shear rates during distribution. At low and subzero temperatures crystallization may occur in the product. Manufacturers utilize a variety of methods to detect these crystal failures, typically involving the storage of formulations between −3 and 10 °C for up to 28 days. This paper describes the application of agitation as a route to reduce the time scale of the stability tests, thus increasing productivity. Agitation simulates vibrations that the formulations experience during distribution. In the absence of mixing, crystallization was found to originate from the air–liquid interface, whereas in the presence of mixing, the crystallization began around the mixing blade. The times to failure detected by the current and proposed methods correlated, indicating the potential for this novel approach to be used in stability testing.

中文翻译：

在没有搅拌的情况下了解洗涤剂配方中的结晶过程

洗涤剂在全球范围内使用，因此在分配过程中会暴露于各种温度和剪切速率下。在低温和零度以下的温度下，产品中可能会发生结晶。制造商利用多种方法来检测这些晶体故障，通常涉及将制剂在-3至10°C之间存储长达28天。本文描述了搅拌的应用，以减少稳定性测试的时间规模，从而提高生产率。搅动模拟了配方在分配过程中所经历的振动。在没有混合的情况下，发现结晶来自气液界面，而在混合的情况下，结晶开始于混合叶片周围。当前和提议的方法检测到的故障时间相关，

更新日期：2018-11-16

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