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alumina yield in the bayer process

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 …

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  • Alumina Yield in the Bayer Process NASA ADS

    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.Fote Mining Machinery Co. It was found that the maximum theorical precipitation alumina yield is 160 g/l, while that for digestion was ...

  • Alumina Yield in the Bayer Process Past Present and

    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.

  • alumina yield in the bayer process BINQ Mining

    alumina yield in the bayer process BINQ Mining

    Mar 10, 2013 alumina yield in the bayer process – Grinding Mill China. Bayer process – Wikipedia, the free encyclopedia In the Bayer process, … the process is virtually unchanged and it produces nearly all the world’s alumina … More detailed

  • US4511542A Bayer process production of alumina hydrate

    US4511542A Bayer process production of alumina hydrate

    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 where ...

  • Bayer Process Plants Noranda Alumina

    Bayer Process Plants Noranda Alumina

    A Bayer process plant is principally a device for heating and cooling a large recirculating stream of sodium hydroxide solution through a temperature range of up to 500oF per cycle. Liquor flow rates of 5,000 to 10,000 gpm are common in the newer plants. Bauxite is added at the high temperature point, red mud is separated at an intermediate ...

  • Decreasing Yield and Alumina Content of Red Mud by

    Decreasing Yield and Alumina Content of Red Mud by

    Jun 01, 2017 2 Cornelius Tsamo et al.: Decreasing Yield and Alumina Content of Red Mud by Optimization of the Bauxite Processing Process the use of sodium hydroxide (Bayer process) is the most economical process which is employed for purification of bauxite if it contains considerable amount of Fe 2O 3 [19]. It is

  • Bayer Process an overview ScienceDirect Topics

    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 bauxite ores ...

  • What Is the Bayer Process with picture

    What Is the Bayer Process with picture

    E.A. Sanker The Bayer process is an industrial process by which bauxite is purified into alumina, or aluminum oxide. The Bayer process is an industrial process by which bauxite is purified into alumina, or aluminum oxide. Named for Karl Bayer, who developed it in the late 19 th century, this process is an essential intermediate step in the production of aluminum metal.

  • process diagram for bauxite mining

    process diagram for bauxite mining

    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 …

  • Alumina Yield in the Bayer Process ResearchGate

    Alumina Yield in the Bayer Process ResearchGate

    It was found that the maximum theorical precipitation alumina yield is 160 g/1, while that for digestion was calculated to be ... [Show full abstract] 675 g/1. 2013 The Minerals, Metals ...

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