Ferruginous smectites

Figure 6. Observed relationship between specific surface area (Sm) and Fe2 content of a chemically reduced series of ferruginous smectite (sample SWa-1 from the Source Clay Minerals Repository of The Clay Minerals Society). (Reproduced with permission from Lear,...

Figure 15 Layer charge of ferruginous smectite (sample SWa-1 from the Source Clay Minerals Repository of The Clay Minerals Society).

Glucose oxidase Kaolinite (KGa-1), illite, bentonite, nontronite(SWa-l, ferruginous smectite), montmorillonite (SWy-1), and vermiculite (VTx-1), Amperometric glucose biosensor [37]... 

Figure 7. Kinetics of WD illitization percentage illite layers versus number of WD cycles for Ferruginous and Kinney smectites after 1 Sr-exchange. Data from Table IV.

A nickel laterite from Piaui, Brazil was used in this study. The top size of the ore was limited to 12.5 mm. The nickel laterite was composed mainly of quartz, silico-femiginous plasma, and clay minerals. The nickel content is 0.9%. The main nickel-bearing minerals are chlorite, smectite, vermiculite, manganese oxide and silico-ferruginous plasma [6]. Since moisture content, acid concentration, retention time and drum rotation speed are operating factors in drum agglomeration, they were investigated in this study. 

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