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bayer process heat exchangers cleaning efficiency: optimizing the acid dissolution of sodalite scale. Sébastien Fortin and Raymond Breault Arvida Research and Development Center, Alcan International Limited, 1955 boul. Mellon, Jonquière (Québec), Canada, G7S 4K8 e-mail: sebastien.fortin@alcan, raymond.breault@alcan
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Corpus ID: 2487502; BAYER PROCESS HEAT EXCHANGERS CLEANING EFFICIENCY: OPTIMIZING THE ACID DISSOLUTION OF SODALITE SCALE. @inproceedings{Fortin2003BAYERPH, title={BAYER PROCESS HEAT EXCHANGERS CLEANING EFFICIENCY: OPTIMIZING THE ACID DISSOLUTION OF SODALITE …
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heat exchanger bayer circuit bayer Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number FR0311909A Other languages French (fr) Other versions
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In the Bayer process, temperature profile across the precipitation circuit plays a major role in maximization of the precipitation yield while maintaining product quality. For this reason, plate heat exchangers are used both at the inlet to Precipitation and between...
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The efficient precipitation of dissolved silica from Bayer process liquor is essential for the production of high-quality alumina and the reduction of excessive scaling in the heat exchangers in the evaporation building of Bayer processes. The accurate prediction of silica solubility in Bayer liquor is one of the key parameters in improving the design and …
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the Bayer Process. The accumulation of scale reduces the efficiency of heat exchangers considerably and may generate other problems such as pipe blockages and probe malfunction. Many researchers have been challenged by fouling problems. They explained scale formation phenomenon using different techniques or hypotheses. Our
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2 · "Targenomix's approach has proven to be very successful," said Dr. Robert Reiter, Head of R&D at Bayer's Crop Science Division. "By using a unique and holistic systems biology approach and leveraging leading expertise building on a strong scientific foundation stemming from the MPI MPP, Targenomix has delivered numerous novel targets and …
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[1] Fortin, S and Breault, R.: Bayer Process Heat Exchangers Cleaning Efficiency: Optimizing the Acid Dissolution of Sodalite Scale. 2003 ECI Conference of Heat Exchanger Fouling and Cleaning Fundamentals and Applications. Santa Fe, New Mexico, USA. Year 2004, Paper 10 [2] Roach, G.I.D. and Cornell, J.B.: Scaling in Bayer Plants.
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The two-stream and lime Bayer process, combining the new two-stream digestion process with the lime Bayer digestion process, has been proposed. ... preheating autoclave is actually only a heat exchanger. In Pechiney technology, compared with the tube exchanger to obtain the same preheating results, the ... scales on the heat-exchange surfaces ...
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BAYER PROCESS Bayer process is the process of refining alumina. . exchangers, which transfer the heat from the solution to the cold spent (processed) liquor. HEAT TRANSFER IN THE BAYER PROCESS - HEAT TRANSFER IN THE BAYER PROCESS Daniel Thomas WorleyParsons, PO Box 15081 City East, . -1971 Tube-in-tube heat …
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The invention relates to a Bayer process for the production of aluminium trihydrate comprising: a) a milling step (B) for the bauxite (10), b) a step of digestion (A) of said bauxite by a sodium aluminate liquor, c) a liquid/solid separation step (C and F), d) a decomposition step (D) for said supersaturated aluminate liquor e) after separation of the precipitated …
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The basic principles of the Bayer process for alumina production are as follows: (1) Use NaOH solution to dissolve the bauxite. ... HFM is a global brand of plate heat exchangers and fluid handling equipment supply nowadays. It rooted in China and now the brand network spans from Asia, Oceania, Africa, Europe, to North America and South America
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Jan 23, 2022· The Bayer process liquor cycle is a loop, and the goal is to ensure that the energy stays within the loop, with heat exchange occurring between different parts of the cycle. The diagram shown in Fig. 9.45, provided by Donaldson [ 131 ], simplifying the Bayer process into a large heat exchanger, highlights this idea well.
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Prior to the Bayer process bauxite is crushed and ground in mills to fine particles (max. size 0.06"/1.5mm). A hot solution of the recycled sodium hydroxide (caustic soda, NaOH) is then added to the ... (thickening tanks) through heat exchangers, which transfer the heat from the solution to the cold spent (processed) liquor.
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Corpus ID: 2487502; BAYER PROCESS HEAT EXCHANGERS CLEANING EFFICIENCY: OPTIMIZING THE ACID DISSOLUTION OF SODALITE SCALE. @inproceedings{Fortin2003BAYERPH, title={BAYER PROCESS HEAT EXCHANGERS CLEANING EFFICIENCY: OPTIMIZING THE ACID DISSOLUTION OF SODALITE …
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The invention relates to a Bayer process for the production of aluminium trihydrate comprising: a) a milling step (B) for the bauxite (10), b) a step of digestion (A) of said bauxite by a sodium aluminate liquor, c) a liquid/solid separation step (C and F), d) a decomposition step (D) for said supersaturated aluminate liquor e) after separation of the precipitated …
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The invention relates to a Bayer process for the production of aluminium trihydrate comprising: a) a milling step (B) for the bauxite (10), b) a step of digestion (A) of said bauxite by a sodium aluminate liquor, c) a liquid/solid separation step (C and F), d) a decomposition step (D) for said supersaturated aluminate liquor e) after separation of the precipitated …
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Bayer Process—Water and Energy Balance | SpringerLink. S. Fortin, R. Breault, Bayer process heat exchangers cleaning efficiency: optimizing the acid dissolution of sodalite scale, in Heat Exchanger Fouling and Cleaning: Fundamentals and Applications, Santa Fe (2003) Google Scholar. Read More
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The invention relates to a Bayer process for the production of aluminium trihydrate comprising: a) a milling step (B) for the bauxite (10), b) a step of digestion (A) of said bauxite by a sodium aluminate liquor, c) a liquid/solid separation step (C and F), d) a decomposition step (D) for said supersaturated aluminate liquor e) after separation of the precipitated …
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Corpus ID: 2487502; BAYER PROCESS HEAT EXCHANGERS CLEANING EFFICIENCY: OPTIMIZING THE ACID DISSOLUTION OF SODALITE SCALE. @inproceedings{Fortin2003BAYERPH, title={BAYER PROCESS HEAT EXCHANGERS CLEANING EFFICIENCY: OPTIMIZING THE ACID DISSOLUTION OF SODALITE …
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