Synthesis of AlPO4-5 and CrAPO-5 using aluminum dross

Kim, Jun; Biswas, Kalidas; Jhon, Ki-Won; Jeong, Soon‐Yong; Ahn, Wha‐Seung

doi:10.1016/j.jhazmat.2009.04.035

Cited by 53 publications

(11 citation statements)

References 22 publications

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“…The triplet bands located in the 530–650-nm region were present only in the CoAPSO-5 membrane ( Figure 8 , line B), which was attributed to the d–d transitions of tetrahedrally coordinated Co 2+ [ 28 , 46 , 47 ]. There was still a controversy about the attribution of absorption peaks to the framework substitution of chromium, the bands appearing at 440 nm and 620 nm for the as-synthesized CrAPSO-5 membrane were generally recognized as the feature of Cr(III) in distorted octahedral coordination ( Figure 8 , line C), where the Cr(III) heteroatoms bonded tetrahedrally to the framework were complementarily coordinated by two H 2 O molecules as additional ligands [ 48 , 49 , 50 ]. In addition, the blue and green color of the synthesized molecular sieves also indicated that both Co 2+ and Cr 3+ had been incorporated into the AFI framework, respectively.…”

Section: Resultsmentioning

confidence: 99%

Efficient Manipulation of Continuous AFI-Type Aluminophosphate Membranes with Distinctive Microstructures on Macroporous α-Al2O3 Substrates

et al. 2018

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The availability of continuous and well-defined AFI-type aluminophosphate membranes (AFI membranes) would trigger their applications in innovative materials. A well-designed manipulation strategy is proposed to produce continuous AFI membranes with four different microstructures over porous α-Al2O3 substrates. A double-layer and highly c-oriented AFI membrane of hexagonal prisms is obtained when a thin layer of medium molecular weight (MMW) chitosan is employed as the structure-directing matrix together with aluminum isopropoxide (AIP) as the Al source. It can be transformed to a single-layer and highly c-oriented AFI membrane of hexagonal prisms if the structure-directing matrix is replaced by a thin layer of low molecular weight (LMW) chitosan. When the Al source is changed to pseudo-boehmite, the single-layer AFI membrane is composed of highly ordered spherical agglomerates of small crystals. Furthermore, the membrane will turn to the double-layer AFI membrane of highly-ordered crystal agglomerates if a thin layer of MMW chitosan is used once again, keeping pseudo-boehmite as the Al source. The manipulation methodology established here is rather reliable with a pretty high reproducibility.

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Section: Resultsmentioning

confidence: 99%

Efficient Manipulation of Continuous AFI-Type Aluminophosphate Membranes with Distinctive Microstructures on Macroporous α-Al2O3 Substrates

et al. 2018

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“…Balakrishnan et al [5] reported that zeotype AlPO4 -5 was synthesized by the reaction of dross with phosphoric acid. Kim et al [6] prepared CrAPO -5 (the chromium-containing analogue of AlPO4 -5 ) by using Al dross and identical properties were obtained with sample prepared by Al(OH)3. Das et al [7] produced ή-alumina from waste Al dross by leaching, hydrolyzing and calcination.…”

Section: Introductionmentioning

confidence: 85%

Characterization and Application of Aluminum Dross as Catalyst in Pyrolysis of Waste Cooking Oil

Kamil

Salmiaton

Shahruzzaman

et al. 2016

Bull. Chem. React. Eng. Catal.

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Aluminium dross, a waste material produced by dissolution of aluminum scrap, was characterized physically and chemically by various analysis techniques for a potential to be used as catalyst. Using catalyst from waste materials reduced the cost for synthesizing of new catalyst. An efficient catalyst derived from industrial solid waste was modified by acid washing for using in a pyrolysis of waste cooking oil. The modification of aluminum dross resulted in increased surface area (from 0.96 to 68.24 m 2 /g), acidity (from 315 to 748 µmol/g) and thermal stability. Pyrolysis waste cooking oil was used to test the performance of aluminum dross as catalyst before and after modification. The product analysis showed a better result than the unmodified material based on increased yield of bio-oil and improved selectivity.

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“…There are hundreds of secondary aluminum recycling industries being operated in Taiwan and the amount of dross in aluminum regeneration process is estimated to be over 2 00 000 t/year. As the costs of landfilling increase and the availability of landfill site/space decreases in Taiwan, they are not the best solution Manuscript [2], hydrotalcite-like materials [3], AlPO 4 -n zeolite materials [4], [5], refractory [6], soil substitute [7], and mullite/zirconia composites [8]. A novel, Effective, and proper recycling technology is necessary for aluminum dross.…”

Section: Introductionmentioning

confidence: 99%

Fine Al₂O₃Powder Produced by Radio-Frequency Plasma From Aluminum Dross

Yang

Wang

Shie

et al. 2014

IEEE Trans. Plasma Sci.

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Aluminum dross is generated as a byproduct in aluminum production or aluminum recycling processes. The major chemical composition of aluminum dross is aluminum element, and it has potential as a starting material to produce high-purity fine aluminum oxide (Al 2 O 3 ) powder. In this paper, a radio frequency (RF) plasma synthesis system is designed as a high-temperature source to produce Al 2 O 3 from aluminum dross. As the RF power increased to 3.5 kW, the color of Al 2 O 3 ceramic powder is transferred to pure white. X-ray diffraction analysis results showed that the synthesized powder comprises of corundum (α-Al 2 O 3 ). The particle size distribution analysis results showed d 50 was 8 μm. The purity of the synthesized Al 2 O 3 powder is 99.95%. In general, the 92% Al 2 O 3 can be applied as commercial product. The quality of Al 2 O 3 powder synthesized in this paper is exceeded this level and has higher value as they are sold in the market. The RF plasma technique developed is proven suitable for treating aluminum dross and converting it into a marketable product.Index Terms-Aluminum dross, aluminum oxide, plasma synthesis system, radio frequency.

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Synthesis of AlPO4-5 and CrAPO-5 using aluminum dross

Cited by 53 publications

References 22 publications

Efficient Manipulation of Continuous AFI-Type Aluminophosphate Membranes with Distinctive Microstructures on Macroporous α-Al2O3 Substrates

Efficient Manipulation of Continuous AFI-Type Aluminophosphate Membranes with Distinctive Microstructures on Macroporous α-Al2O3 Substrates

Characterization and Application of Aluminum Dross as Catalyst in Pyrolysis of Waste Cooking Oil

Fine Al₂O₃Powder Produced by Radio-Frequency Plasma From Aluminum Dross

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Synthesis of AlPO4-5 and CrAPO-5 using aluminum dross

Cited by 53 publications

References 22 publications

Efficient Manipulation of Continuous AFI-Type Aluminophosphate Membranes with Distinctive Microstructures on Macroporous α-Al2O3 Substrates

Efficient Manipulation of Continuous AFI-Type Aluminophosphate Membranes with Distinctive Microstructures on Macroporous α-Al2O3 Substrates

Characterization and Application of Aluminum Dross as Catalyst in Pyrolysis of Waste Cooking Oil

Fine Al2O3Powder Produced by Radio-Frequency Plasma From Aluminum Dross

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Product

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Fine Al₂O₃Powder Produced by Radio-Frequency Plasma From Aluminum Dross