• Sodalite Scale Control In Alumina Bayer Process OnePetro

    The negative impacts of scale on energy consumption (esp. in heat exchangers), caustic losses, liquor flows, and evaporation all call for an urgent need of an innovational solution. The main component of scale formed in Bayer process is sodium aluminosilie (3Na 2 O?3Al 2 O 3?5SiO 2?X), also known as sodalite or DSP (desiliion product

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  • Heat exchangers for ore refining, mining and pigment industry

    How to design a heat exchanger? Custommade by our thermal engineers, heat exchanger calculation is a complex process that requires a lot of data and many equations. Are you ready for a crash course in thermodynamics? How to design a heat exchanger? Thermal exchange: FAQ. All what you ever wanted to know about heat exchangers!

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  • The kinetics of desiliion of synthetic spent Bayer

    The kinetics of desiliion of synthetic, sodium aluminosilie solution (spent Bayer liquor) and growth of sodalite crystals have been studied under isothermal, batch crystallization conditions close to those prevailing in Bayer process heat exchangers. The desiliion rate of the liquor via the formation and growth of sodalite scale on steel substrates was found to be independent of

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  • Bayer process Wikipedia

    The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide) and was developed by Carl Josef Bayer. Bauxite, the most important ore of aluminium, contains only 30–60% aluminium oxide (Al 2 O 3), the rest being a

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  • Heat exchanger Wikipedia

    A heat exchanger is a system used to transfer heat between two or more fluids.Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum refineries, natural

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  • Plate Heat Exchangers / Plate Coolers Kelvion

    Plate heat exchanger: definition and function. Plate heat exchangers are used to transfer heat between two media, which are separated from each other by corrugated plates. The plate heat exchanger consists of different heat transfer plates, which are sealed by gaskets, or brazed, or welded together.

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  • Heat Exchangers: Cooling & Heating Systems Kelvion

    Kelvion, your expert for heat exchangers and other cooling & heating systems: finn, tube & plate heat exchangers, radiators, wet cooling towers & more!

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  • How do heat exchangers work? Explain that Stuff

    Dec 08, 2018 · All heat exchangers do the same job—passing heat from one fluid to another—but they work in many different ways. The two most common kinds of heat exchanger are the shellandtube and plate/fin. In shell and tube heat exchangers, one fluid flows through a set of metal tubes while the second fluid passes through a sealed shell that surrounds

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  • Process Water Water Treatment HRS Heat Exchangers

    Whether you need to separate process water from cooling or heating media, utilize heat within a closed loop system or simply maximize the efficiency of heating or cooling during your process, HRS Heat Exchangers have a technology which will work for you.

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  • Process Water Water Treatment HRS Heat Exchangers

    Whether you need to separate process water from cooling or heating media, utilise heat within a closed loop system or simply maximise the efficiency of heating or cooling during your process, HRS Heat Exchangers have a technology which will work for you.

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  • Bayer process Wikipedia

    The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide) and was developed by Carl Josef Bayer. To more effectively use energy, heat exchangers and flash tanks were used and larger reactors decreased the amount of heat lost.

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  • Presidential Green Chemistry Challenge: 2012 Greener

    Presidential Green Chemistry Challenge 2012 award winner, Cytec Industries, developed the MAX HT sodalite scale inhibitor for heat exchangers and pipes in the Bayer process

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  • Bayer Process Heat Exchangers Cleaning Efficiency

    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,

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  • Sodium Aluminosilie Solid Phase Specific Fouling

    Process heat transfer equipment fouling due to sodium aluminosilie precipitation is a serious problem that confronts highlevel nuclear waste liquor and Bayer process alumina processing plants. The fouling of 316 stainless steel substrate by thermodynamically stable and unstable sodium

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  • BAYER PROCESS CONTROL AT ALCAN VAUDREUIL WORKS

    Bauxite Charge Control 3.2 Vacuum Heat Exchange Optimization This process is one of the two major heat recovery systems in the Vaudreuil plant Bayer process. The purpose of the vacuum heat exchange network is to recover energy from a hot stream (pregnant liquor) by transferring it

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  • Brazetek Heat Exchangers – Brazed Plate, Water to Air

    Brazetek.com is a leading online distributor of brazed plate, water to air and shell & tube heat exchangers for a wide range of appliions including hot water heating, wood boilers, swimming pool, solar and radiant floor heating, oil cooling and many others.

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  • Heat Exchangers Buyers Guide processheating.com

    Find manufacturers of Heat Exchangers in the process heating equipment industry that includes everything from drying and curing ovens to cooling and heat dissipation equipment. This website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been

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  • Understanding and mitigating heat exchanger fouling in

    Abstract. Laboratory and plant measurements have been performed to evaluate possibilities of reducing the formation of desiliion product (DSP) scale in the heat exchangers of the lowtemperature Bayer process.

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  • Dynamic Simulation and Control of the Bayer Process. A

    Despite a significant number of studies having been carried aimed at developing strategies for scale inhibition during the Bayer process, particularly in heat exchanger systems, there is still

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  • Bayer process [SubsTech]

    Dr. Dmitri Kopeliovich Bayer process is the process of refining alumina from bauxite The clear liquor is pumped from the settlers to the precipitators (thickening tanks) through heat exchangers, which transfer the heat from the solution to the cold spent (processed) liquor.

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  • Presidential Green Chemistry Challenge: 2012 Greener

    Presidential Green Chemistry Challenge 2012 award winner, Cytec Industries, developed the MAX HT sodalite scale inhibitor for heat exchangers and pipes in the Bayer process

    Get price
  • OPUS at UTS: Macromolecular organic Bayer process poisons

    During the processing of the bauxite, the organic material that it contains is extracted into the Bayer liquor where it interferes with the precipitation of the aluminium hydroxide. The organic material present in the Bayer process liquor from a high temperature alumina refinery operating at 250255oC was examined in this study.

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  • Flocess The future of pillowplate heat exchanger design

    We are developing a unique tool for the accurate design, verifiion and simulation of pillowplate equipment. The calculation methods embedded in our software are based on years of focused research & development on pillowplate heat exchangers and pillowplate jacketed tanks involving advanced CFD analysis and experimental work.

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  • Ross HX A Heat Exchanger Co.

    We offer thorough regasketing and plate refurbishment services. We start with pressure washing, followed by dyetesting, and then the replacement of gaskets and treatment of heat plate packs. O Onsite. We offer nationwide onsite heat exchanger service & repair! You can schedule us for your next maintenance shutdown, or we can be reached 24/7

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  • Dynamic Simulation and Control of the Bayer Process. A

    Despite a significant number of studies having been carried aimed at developing strategies for scale inhibition during the Bayer process, particularly in heat exchanger systems, there is still

    Get price
  • What is a Heat Exchanger? How do Heat Exchangers Work?

    2. How to increase the lifetime of a Heat Exchanger. Heat exchangers are manufactured from robust materials, have no moving parts and operate at a variety of different pressures and temperatures, therefore if a heat exchanger is used in the correct way then there is no reason why it shouldn''t be able to remain operational for many years.

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  • mining Heat Exchanger Manufacturer – Sondex Australia

    A world leading designer and manufacturer of quality plate heat exchangers and fresh water generators. We also offer heat exchanger maintenance, servicing and technical advice on all heat exchangers. Loed in Melbourne, Australia.

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  • Equipment Sizing and Capital Cost Estimation

    exposure to process economics Can begin with cost accounting–gives a good view of corporate finances and considerations when evaluating a potential design. Given limited time–begin with equipment sizing and capital cost estimation. Again, coverage depends on previous exposure to sizing of: Pressure vessels, heat exchangers, pumps

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  • Plate Heat Exchangers / Plate Coolers Kelvion

    Plate heat exchanger: definition and function. Plate heat exchangers are used to transfer heat between two media, which are separated from each other by corrugated plates. The plate heat exchanger consists of different heat transfer plates, which are sealed by gaskets, or brazed, or welded together.

    Get price
  • New Product for the Bayer Process Wins Green Award

    New Product for the Bayer Process Wins Green Award . The 2012 Greener Reaction Conditions award was awarded to Cytec Industries for their MAX HT Bayer Sodalite Scale Inhibiter.. During the ''Bayer Process'' (process where bauxite is converted to alumina) a mineral scale is deposited on the heat exchangers and pipes which leads to an increase in energy use.

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  • Heat exchangers for ore refining, mining and pigment industry

    How to design a heat exchanger? Custommade by our thermal engineers, heat exchanger calculation is a complex process that requires a lot of data and many equations. Are you ready for a crash course in thermodynamics? How to design a heat exchanger? Thermal exchange: FAQ. All what you ever wanted to know about heat exchangers!

    Get price
  • "Bayer Process Heat Exchangers Cleaning Efficiency" by

    Aluminum metal is produced by the electrolytic reduction of aluminum oxide (Al2O3), mainly extracted from bauxite ore digested in a hot caustic soda solution. This solution is supersaturated with respect to sodium aluminate and silie, which react together to form sodalite (3[Na2O·Al2O3ܨSiO2 ܨH2O] ·Na2CO3) at high temperatures. Heat exchanger tubes are scaled with this compound, which

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  • Mining and Refining – Process

    The spent liquor is heated through a series of heat exchangers and subsequently cooled in a series of flash tanks. The condensate formed in the heaters is reused in the process, for instance as boiler feed water or for washing bauxite residue. The remaining caustic soda is washed and recycled back into the digestion process. 7. Classifiion

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  • Understanding and mitigating heat exchanger fouling in

    Abstract. Laboratory and plant measurements have been performed to evaluate possibilities of reducing the formation of desiliion product (DSP) scale in the heat exchangers of the lowtemperature Bayer process.

    Get price
  • China Plate Heat Exchanger,Spiral Heat Exchanger,Heating

    Accessen International LLC is a heat exchanger designer, manufacturer, distributor and servicer in China. Founded in 2002 in Shanghai, we are a SinoAmerican joint venture company with over 600 employees, 4 manufacturing plants, 400 service outlets covering 27 Chinese provinces, and two technical training and product centers.

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  • Sodium Aluminosilie Solid Phase Specific Fouling

    Process heat transfer equipment fouling due to sodium aluminosilie precipitation is a serious problem that confronts highlevel nuclear waste liquor and Bayer process alumina processing plants. The fouling of 316 stainless steel substrate by thermodynamically stable and unstable sodium

    Get price
  • What is a Heat Exchanger? How do Heat Exchangers Work?

    2. How to increase the lifetime of a Heat Exchanger. Heat exchangers are manufactured from robust materials, have no moving parts and operate at a variety of different pressures and temperatures, therefore if a heat exchanger is used in the correct way then there is no reason why it shouldn''t be able to remain operational for many years.

    Get price
  • Compabloc Condenser Solved Fouling Problem

    Compabloc Condenser Solved Fouling Problem Queensland Alumina, Australia Case story on the solubility of alumina in caustic liquor. Heat exchangers are required for a broad spectrum of duties in the process of heating and cooling the circulating liquor stream. The Compabloc replaced the original carbon steel shellandtube heat exchanger in the

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