gibbsite

In chemisorbed ash samples tobermorite appears to be converted to calcite, whilst katoite and gibbsite have remained almost intact during chemisorption according to XRD diffractions (Figs.

Carbonation neutralizes the basicity and precipitates gibbsite.

* triaquo-hydroxo-diphenoxido-aluminum(III) complex (THDA), with the formula Al[H.sub.2]O).sub.3](OH)[([C.sub.6][H.sub.5]O).sub.2], prepared by a long-term reaction of gibbsite powder with phenol (1:1) in water as follows.

The mineralogical composition of BRS typically contains ~58% quartz, 22% hematite, 7% gibbsite, 5% goethite, 1% anatase, 1% desilication product (DSP), 1% muscovite, and 0.3% boehmite (Taylor and Pearson 2001), and 0.4-0.7% amorphous Fe and AI oxides (Table 3).

In both cases the hardening and formation of a solid body are driven by the precipitation of small hydrates with a suitable surface energy, Katoite and Gibbsite for CAC and Apatite or Brushite for CPC.

(2016), who found that the presence of IHP significantly enhanced the adsorption of Cd(II) on gibbsite below pH 8.0, especially at higher concentrations of Cd(II) and IHP; the presence of IHP also led to a marked increase in the adsorption density of Cd(II) to kaolinite in the pH range of 4.0-8.5 (Ruyter-Hooley et al.

Establishing the resource size provides the resource size consideration for concluding final agreements to purchase the mining lease and commence early mine production to supply the buoyant bauxite market, which is currently seriously short of this type of gibbsite bauxite.

slow conversion of fluoroaluminium complexes to insoluble species, such as gibbsite [Al[(OH).sub.3]], and possible precipitation of fluorite (Ca[F.sub.2]) or fluoroapatite [[Ca.sub.5](PO4)3F], has been suggested in soils amended with Al or Ca (Rai et al.

* [gamma]-Al[(OH).sub.3], gibbsite, proven by XRD method (Lachema Brno);

Areas of Gibbsite seemed to be completely surrounded by the "denser" bone.

In difference, it can be noted that aluminum hydroxide occurs as gibbsite and vesuvianite ferrian is replaced by vesuvianite [Ca.sub.19][Al.sub.11][Mg.sub.2][Si.sub.18][O.sub.69][(OH).sub.9].