alumina yield in the bayer process
Alumina Yield in the Bayer Process SpringerLink
To know the potential for further yield increases, the phase diagram of the ternary system Na 2 O-Al 2 O -H 2 O at various temperature levels was analysed. It was found that the maximum theorical precipitation alumina yield is 160 g/l, while that for digestion was calculated to be 675 g/l. Keywords Bauxite Residue Lever Rule BAYER Process
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Alumina Yield in the Bayer Process Past, Present and
During the past decades a large number of alumina plants were successful in economically increasing the productivity of the Bayer liquor loop. Over a period of 25 years the benchmark precipitation yield has increased from 70 g/l to 90+ g/l, whilst producing sandy alumina. However with the theoretical maximum precipitation yield at 160 g/l there
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Alumina Yield in the Bayer Process ResearchGate
2016-1-1 Alumina Alumina Yield in the Bayer Process Authors: R. Den Hond Abstract The alumina industry has historically been able to reduce alumina production costs, by increasing the liquor alumina yield....
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Alumina Yield in the Bayer Process Semantic Scholar
The alumina industry has historically been able to reduce alumina production costs, by increasing the liquor alumina yield. To know the potential for further yield increases, the phase diagram of the ternary system Na2O-Al2O -H2O at various temperature levels was analysed. It was found that the maximum theorical precipitation alumina yield is 160 g/l, while that for digestion was
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ALUMINA YIELD IN THE BAYER PROCESS PAST, PRESENT
2022-2-18 Rinalco BV Abstract During the past decades a large number of alumina plants were successful in economically increasing the productivity of the Bayer liquor loop. Over a
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Alumina Yield in the Bayer Process Wiley Online Library
2013-3-1 Alumina Yield in the Bayer Process. R. Den Hand, R. Den Hand. Search for more papers by this author. R. Den Hand, R. Den Hand. Bayer Process Alumina Yields. Conclusions. Essential Readings in Light Metals: Alumina and Bauxite, Volume 1. Related; Information; Close Figure Viewer. Return to Figure.
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Alumina Yield in the Bayer Process Past, Present and
2013-3-1 Alumina Yield in the Bayer Process Past, Present and Prospects. Roelof Den Hond. Alcor Technology, Clinckenburgh 10, 2343 JH Oegstgeest, The Netherlands. Search for more papers by this author. Iwan Hiralal. Hiracon, Prinses Irenelaan 2,
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Alumina Yield in the Bayer Process NASA/ADS
The alumina industry has historically been able to reduce alumina production costs, by increasing the liquor alumina yield. To know the potential for further yield increases, the phase diagram of the ternary system Na<SUB>2</SUB>O-Al<SUB>2</SUB>O -H<SUB>2</SUB>O at various temperature levels was analysed. It was found that the maximum theorical precipitation
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Light Metals 2007, Morton Sarlie, Editor ALUMINA YIELD
2017-8-25 Liquor alumina yield can be calculated as follows: Y=ll.(A/C)xC (1) Y = yield (g/1) A = liquor alumina concentration (g/1, expressed as Al 203) C = liquor caustic concentration (g/1, expressed as Na 2C0 3) ll.(
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Alumina Yield in the Bayer Process Past, Present and
2016-1-1 Download Citation Alumina Yield in the Bayer Process Past, Present and Prospects During the past decades a large number of alumina plants were successful in economically increasing the
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Alumina Yield in the Bayer Process ResearchGate
2016-1-1 To know the potential for further yield increases, the phase diagram of the ternary system Na2O-Al2O -H2O at various temperature levels was analysed. It was found that the maximum theorical
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Alumina Yield in the Bayer Process Semantic Scholar
The alumina industry has historically been able to reduce alumina production costs, by increasing the liquor alumina yield. To know the potential for further yield increases, the phase diagram of the ternary system Na2O-Al2O -H2O at various temperature levels was analysed. It was found that the maximum theorical precipitation alumina yield is 160 g/l, while that for digestion was
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ALUMINA YIELD IN THE BAYER PROCESS PAST, PRESENT
2022-2-18 During the past decades a large number of alumina plants were successful in economically increasing the productivity of the Bayer liquor loop. Over a period of 25 years the benchmark precipitation
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Alumina Yield in the Bayer Process Past, Present and
2016-1-1 Download Citation Alumina Yield in the Bayer Process Past, Present and Prospects During the past decades a large number of alumina plants were successful in economically increasing the
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Alumina Yield in the Bayer Process Past, Present and
During the past decades a large number of alumina plants were successful in economically increasing the productivity of the Bayer liquor loop. Over a period of 25 years the benchmark precipitation yield has increased from 70 g/l to 90+ g/l, whilst producing sandy alumina. However with the theoretical maximum precipitation yield at 160 g/l there is still a wide gap to be closed.
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Alumina Yield in the Bayer Process Past, Present and
2013-3-1 Alumina Yield in the Bayer Process Past, Present and Prospects. Roelof Den Hond. Alcor Technology, Clinckenburgh 10, 2343 JH Oegstgeest, The Netherlands. Search for more papers by this author. Iwan Hiralal. Hiracon, Prinses Irenelaan 2,
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Alumina Yield in the Bayer Process NASA/ADS
The alumina industry has historically been able to reduce alumina production costs, by increasing the liquor alumina yield. To know the potential for further yield increases, the phase diagram of the ternary system Na<SUB>2</SUB>O-Al<SUB>2</SUB>O -H<SUB>2</SUB>O at various temperature levels was analysed. It was found that the maximum theorical precipitation
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Light Metals 2007, Morton Sarlie, Editor ALUMINA YIELD
2017-8-25 From Light Metals 2007, Morton Sarlie, Editor ALUMINA YIELD IN THE BAYER PROCESS PAST, PRESENT AND PROSPECTS RoelofDen Hond\ Iwan Hiralae, Ab Rijkeboe~ 1Alcor Technology, Clinckenburgh 10,2343 JH Oegstgeest, The Netherlands 2Hiracon, Prinses lrenelaan 2, 2273 DD Voorburg, The Netherlands 3Rinalco, Helmlaan 16,2244 AZ Wassenaar,
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Mass Balance of Precipitation Process of the Bayer
2017-3-14 CEED Seminar Proceedings 2009 Jiate Guo: Alumina Precipitation Mass Balance 20 tanks for a generic plant and analyse it under volume reduction conditions in particular to study the benefits of application of the anti-scaling technology on the alumina yield. 2. Background 2.1 Alumina precipitation kinetics models
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ALUMINA YIELD IN THE BAYER PROCESS PAST, PRESENT
CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): During the past decades a large number of alumina plants were successful in economically increasing the productivity of the Bayer liquor loop. Over a period of 25 years the benchmark precipitation yield has increased from 70 g/l to 90+ g/l, whilst producing sandy alumina.
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Alumina Yield in the Bayer Process Past, Present and
During the past decades a large number of alumina plants were successful in economically increasing the productivity of the Bayer liquor loop. Over a period of 25 years the benchmark precipitation yield has increased from 70 g/l to 90+ g/l, whilst producing sandy alumina. However with the theoretical maximum precipitation yield at 160 g/l there is still a wide gap to be closed.
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Alumina Yield in the Bayer Process NASA/ADS
The alumina industry has historically been able to reduce alumina production costs, by increasing the liquor alumina yield. To know the potential for further yield increases, the phase diagram of the ternary system Na 2 O-Al 2 O -H 2 O at various temperature levels was analysed. It was found that the maximum theorical precipitation alumina yield is 160 g/l, while that for digestion was
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Bayer Process for Alumina Extraction alalloycasting
2020-6-5 The Bayer process for alumina extraction is a chemical process widely used in the industry to produce alumina from bauxite. Bauxite is a sedimentary rock containing high aluminum content. Bauxite is often covered by several meters of rock and clay, which must first be removed before the bauxite can be recovered.
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Bayer Process an overview ScienceDirect Topics
Alton T. Tabereaux, Ray D. Peterson, in Treatise on Process Metallurgy: Industrial Processes, 2014 2.5.1.1 Impact of Different Bauxites on the Bayer Process. The Bayer process is basically used for the extraction of aluminum hydrate from the bauxite ores with the mass ratio of alumina to silica (A/S) above 9. The sinter process is widely used to process the poor-grade diasporic
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Mining and Refining Process
The Bayer Process is the most economic means of obtaining alumina from bauxite. Other processes for obtaining alumina from metal ores are also in use in some refineries, particularly in China and Russia, although these make up a
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Bayer process production of alumina hydrate Kaiser
An improved precipitation system is provided for the Bayer process production of alumina hydrate. In order to produce coarse and strong alumina hydrate at high yield, supersaturated Bayer process sodium aluminate liquor is seeded with a relatively small seed charge in a first precipitator at a relatively low temperature and the produced slurry is transferred to a second precipitator
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Mass Balance of Precipitation Process of the Bayer
2017-3-14 CEED Seminar Proceedings 2009 Jiate Guo: Alumina Precipitation Mass Balance 20 tanks for a generic plant and analyse it under volume reduction conditions in particular to study the benefits of application of the anti-scaling technology on the alumina yield. 2. Background 2.1 Alumina precipitation kinetics models
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Bayer Process Efficiency Improvement SpringerLink
The process efficiency has a great influence on the production yield, energy consumption, investment and operation cost in Bayer process. The factors affecting the Bayer efficiency are particularly discussed in this paper. Reducing the molar ratio of pregnant liquor and raising the molar ratio of spent liquor and the caustic concentration of
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Optimal Factor Evaluation for the Extraction of Alumina
2022-4-30 The increase of alumina extraction yield continued up to 60% acid/clay ratio, but the yield rapidly decreased at ratios above 60%. Finally, the alumina extraction yield decreased to 67.32% at 100°C leaching tempera-ture and 90% acid/clay ratio. When all of the plots (Figs. 4 and 5) were exam-ined, it was clearly seen that these 3D response surface
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Alumina Yield in the Bayer Process Past, Present and
During the past decades a large number of alumina plants were successful in economically increasing the productivity of the Bayer liquor loop. Over a period of 25 years the benchmark precipitation yield has increased from 70 g/l to 90+ g/l, whilst producing sandy alumina.
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