C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 11/00 (2006.01) B09B 1/00 (2006.01) B09B 3/00 (2006.01) C01F 7/06 (2006.01) C02F 1/56 (2006.01)
Patent
CA 2407869
A process in which material comprising an aqueous liquid with dispersed particulate solids is pumped as a fluid then allowed to stand and rigidify and the rigidification is improved whilst retaining the pumpability of the material by combining polymeric particles with the material during or prior to pumping the material, wherein the polymeric particles comprise water soluble polymer which has an intrinsic viscosity of at least 3 dl/g. The process of the invention more effectively minimises the area taken up by a stack of the material of given volume whilst maintaining the pumpability of the material. This invention is particularly suited to material that comprises red mud from the Bayer alumina process.
L'invention concerne un procédé consistant à pomper comme un fluide une matière qui contient un liquide aqueux à particules solides dispersées et à la laisser reposer de sorte qu'elle se rigidifie. On améliore la rigidification, tout en conservant la pompabilité de ladite matière, en associant à cette matière des particules polymériques pendant ou avant le pompage de la matière. Ces particules polymériques contiennent un polymère soluble dans l'eau présentant une viscosité intrinsèque d'au moins 3 dl/g. Ledit procédé permet de minimiser plus efficacement la zone occupée par un empilement de la matière d'un volume donné, tout en conservant la pompabilité de cette matière. La présente invention convient particulièrement aux matières contenant des boues rouges issues du procédé Bayer de production de l'alumine.
Adkins Stephen
Dymond Brian
Gallagher Michael Gerard
Hooley Anne Frances
Smith Hal G.
Ciba Specialty Chemicals Water Treatments Limited
Fetherstonhaugh & Co.
LandOfFree
Treatment of mineral materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Treatment of mineral materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Treatment of mineral materials will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1596084