Reprocessing of detergent tablets

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 17/00 (2006.01) C11D 1/65 (2006.01) C11D 1/835 (2006.01) C11D 1/86 (2006.01) C11D 1/94 (2006.01) C11D 3/00 (2006.01) C11D 17/02 (2006.01) C11D 1/62 (2006.01)

Patent

CA 2424168

The present invention relates to a multi-phase detergent composition of compressed particulate matter, wherein the geometric mean particle diameter of one phase differs from the geometric mean particle diameter of at least one other phase by at least 300 µm.The phases of the compositions of the present invention are easy to separate and avoid excessive contamination which would cause problems for reblend operations.The present invention also relates to a method of separating the phases of a multi-phase detergent compositions of compressed particulate matter, wherein the geometric mean particle diameter of the first phase differs from the geometric mean particle diameter of the second phase by at least 300 µm, said method comprising the steps: (a) breaking up the compressed composition into particles, and (b) separating phases on the basis of their particle size.

La présente invention concerne une composition détergente multi-phasée constituée de particules compressées, le diamètre géométrique particulaire moyen d'une phase étant différent du diamètre géométrique particulaire moyen d'au moins une autre phase d'au moins 300µm. Les phases des compositions décrites dans cette invention sont faciles à séparer et elles permettent d'éviter une contamination excessive susceptible de poser des problèmes lors des opérations de redosage. Cette invention concerne également un procédé permettant de séparer les phases de compositions détergentes multi-phasées constituées de particules compressées, dans lesquelles le diamètre géométrique particulaire moyen de la première phase est différent du diamètre géométrique particulaire moyen de la seconde phase d'au moins 300µm. Ce procédé comprend les étapes consistant: (a) à réduire la composition compressée en particules, puis (b) à séparer les phases en fonction de leur taille particulaire.

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