Skip to Main content Skip to Navigation
Conference papers

Processing of a detergent powder formulation : direct compression and high shear wet granulation followed by compression

Abstract : In this paper, detergent tablets processing for industrial multipurpose uses, i. e. hard surfaces cleaning, has been investigated. The detergent formulation is a complex blend of over 95 % of powders: inorganic salts of alkaline metal called builders, and a system of surfactants composed of anionic and non ionic organic molecules. Two processes have been examined: wet granulation of the detergent powder prior to compression and direct compression. Wet granulation is performed in a laboratory high shear mixer. The initial powder and the obtained granules are characterized in terms of particle size distribution, flowability, and compressibility. The granulation parameters studied are the intensity of shear, and the amount of liquid added, water being used as liquid binder. The compression is performed on a uniaxial laboratory press. The following compact features are considered: mechanical strength, friability, density, solubility in cold water, and microscopic observation of fractured surfaces. Comparison of the two compacted products showed that prior granulation leads to increased mechanical properties due to higher plasticity and stronger binding with water, while it slightly deactivates the alkaline product. Compression of the material significantly increases dissolution times.
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-01780105
Contributor : Imt Mines Albi Imt Mines Albi Connect in order to contact the contributor
Submitted on : Friday, April 27, 2018 - 11:00:37 AM
Last modification on : Tuesday, July 13, 2021 - 8:20:07 AM

Identifiers

  • HAL Id : hal-01780105, version 1

Citation

Marie-Élise Chateau, Laurence Galet, Yannick Soudais, Jacques Fages. Processing of a detergent powder formulation : direct compression and high shear wet granulation followed by compression. 4ème Colloque Science et technologie des poudres -Récents progrès en génie des procédés, Société française de génie des procédés SFGP, May 2004, Compiègne, France. 11 p. ⟨hal-01780105⟩

Share

Metrics

Record views

282