Development of a Novel Granular Detergent by Inorganic Solution Binder.

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  • Ebihara Fukuji
    Research and Development Department, Procter and Gamble Far East, Inc.
  • Watano Satoru
    Department of Chemical Engineering, Osaka Prefecture University

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This paper discusses an optimal process for making a novel granular detergent by using an aqueous inorganic solution. This process contains a step of coating with inorganic solutions (sodium carbonate or sodium sulfate solution) onto granular detergent by spraying, which provides an improved solubility of the granular detergent as well as providing better physical properties (e.g., higher bulk density, flowability, etc.). The inorganic solutions used for the coating can also act to prevent sticking of the product. In this study, the feasibility to make better performance of granular detergent by using aqueous inorganic solutions as binder was discussed and the optimum process centerline was determined. It was also found that the Froude number could be used for the scale up/down of the coating process.

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