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Decomposition of Ilmenite from Bangka Island-Indonesia with KOH Solutions
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Decomposition of Ilmenite from Bangka Island-Indonesia with KOH Solutions
Subagja, Rudi; Andriyah, Lia; Lalasari, Latifa Hanum, 2018, "Decomposition of Ilmenite from Bangka Island-Indonesia with KOH Solutions", https://hdl.handle.net/20.500.12690/RIN/37OK3K, RIN Dataverse, V1, UNF:6:V5O4w7u85fsNvxmFKlDHFA== [fileUNF]
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Description

At present work, an experiment to investigate the effect of Ilmenite particle size, aqueous potassium hydroxide (KOH) solution concentrations, temperature, and reaction time on the decomposition reaction of Ilmenite from Bangka Island Indonesian were studied by using 2 liter capacities autoclave as a reactor for decomposition process. The variable used for experiment were covering Ilmenite particle size from -40 mesh up to -200 mesh, aqueous KOH solution concentrations from 2 mole/liter up to 20 mol/liter, decomposition temperature from 100 o C up to 175 o C and decomposition time from 2 hours up to 12 hours. The result of observation by using Scanning Electron Microscope (SEM) to the decomposed Ilmenite shows that the more finer Ilmenite particle size are more effective to be decomposed by aqueous KOH solutions than the coarse one, the morphology of Ilmenite changed when it was reacted with aqueous KOH solutions, and it significantly change when aqueous KOH solution concentrations were increased from 2 mole/liter up to 20 mol/liter, decomposition temperature were increased from 100 o C up to 175 o C and decomposition time were extended from 2 hours up to 12 hours. The result of analysis by using X-Ray Diffraction (XRD) to the Ilmenite decomposition products show that K2TiO3 phase was found at all Ilmenite decomposition products.

Asian Transactions on Basic and Applied Sciences (ATBAS), Vol. 03, No. 02. Hal. 59-64

(2013)
Subject Chemistry
Keyword Ilmenite, KOH decomposition, pottasium titanate
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Fig. 1. XRD pattern.PNG
Fig. 1. XRD pattern.PNG
PNG Image - 32.7 KB
Published Aug 28, 2018
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MD5: 6664a7ffeb817595e9594bdf89dd1e50
XRD pattern of Bangka Ilmenite
Data
Fig. 10. X-Ray diffraction.PNG
Fig. 10. X-Ray diffraction.PNG
PNG Image - 121.1 KB
Published Aug 28, 2018
3 Downloads
MD5: 978a74ccd0508c4e037f12a3ddeb7474
X-Ray diffraction of decomposed Ilmenite after it was reacted with 10 mol/l KOH at temperature 100 o C up to 150 o C for 12 hours
Data
Fig. 2. SEM Image and element distribution.PNG
Fig. 2. SEM Image and element distribution.PNG
PNG Image - 758.1 KB
Published Aug 28, 2018
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MD5: 64b5884e3ba0d745de0609f0bfc64ee6
SEM Image and element distribution of Bangka Ilmenite
Data
Fig. 3. EDX result.PNG
Fig. 3. EDX result.PNG
PNG Image - 45.3 KB
Published Aug 28, 2018
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MD5: 0bb4a1d1254e6250b37b5ed43fb21e3a
EDX result of Bangka Ilmenite
Data
Fig. 4. The Micro structure.PNG
Fig. 4. The Micro structure.PNG
PNG Image - 318.9 KB
Published Aug 28, 2018
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MD5: b007ebb41f584ca22e773182b34f44c1
The Micro structure of the variety size of decomposed Ilmenite that have been reacted with KOH 10 mol/liter at temperature 150 o C for 12 hours
Data
Fig. 5. EDX Result.PNG
Fig. 5. EDX Result.PNG
PNG Image - 43.9 KB
Published Aug 28, 2018
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MD5: 6f6aeeb6d5d0f049f521a7adf7d0be32
EDX Result of -100 mesh Ilmenite that have been reacted with KOH 10 mol/liter at temperature 150 o C for 12 hours
Data
Fig. 6. The Morphology of Ilmenite.PNG
Fig. 6. The Morphology of Ilmenite.PNG
PNG Image - 342.8 KB
Published Aug 28, 2018
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MD5: 2a23458e24cac1c09d8192a8b925ae1f
The Morphology of Ilmenite that have reacted with 10 mol/liter KOH solution at temperature 150 0 C for a) 2 hours, b) 4 hours c) 8 hours and d) 12 hours
Data
Fig. 7. The result of SEM.PNG
Fig. 7. The result of SEM.PNG
PNG Image - 409.2 KB
Published Aug 28, 2018
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MD5: f22bc125942580e670417030e5383dc5
The result of SEM observation to the Ilmenite that have been reacted with various aqueous KOH solution concentrations at temperature 150 o C for 12 hours ( a: KOH=2 mol/ltr, b: KOH = 4 mol/ltr, c: KOH = 10 mol/ltr, d: KOH = 20 mol/ltr
Data
Fig. 8. X-Ray diffraction.PNG
Fig. 8. X-Ray diffraction.PNG
PNG Image - 78.6 KB
Published Aug 28, 2018
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MD5: e54ea2d736dcadf6487e2883e4a25b28
X-Ray diffraction of decomposed Ilmenite
Data
Fig. 9. The result of SEM.PNG
Fig. 9. The result of SEM.PNG
PNG Image - 217.9 KB
Published Aug 28, 2018
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MD5: 4a91575271ff971737a69ebf59f6ea3a
The result of SEM observation to the decomposed Ilmenite, treated with 10 mole/liter KOH for 12 hours at various temperature ( a: T = 100 o C, b: T = 125 o C, c: T = 150 o C, d: T=175 o C)
Data
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