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Magnetic continuous separating refiner and its use during process of aluminium gum preparation

A preparation process, magnetic separation technology, applied in the direction of alumina/aluminum hydroxide, aluminate/alumina/aluminum hydroxide purification, etc., can solve the problems of expensive alumina cost, aluminum loss, etc., and achieve low cost of iron removal , high degree of automation and simple equipment

Inactive Publication Date: 2007-06-20
BEIJING UNIV OF CHEM TECH
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Problems solved by technology

The disadvantage of this method is that a large amount of aluminum will be lost while removing iron, and it involves operational issues such as repeated regeneration and recycling of resin.
[0007] In order to obtain high-purity alumina, aluminum-containing organic compounds such as aluminum isopropoxide are currently used as raw materials at home and abroad, and high-purity alumina products are obtained after hydrolysis, but the cost of alumina prepared in this way is very expensive

Method used

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  • Magnetic continuous separating refiner and its use during process of aluminium gum preparation

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Embodiment Construction

[0015] Process reduction-magnetic separation continuous iron removal device of the present invention is as shown in accompanying drawing 1, comprises a enamel reactor 1 with stirring, is provided with a peristaltic pump 2 and a glass separator 3 outside reactor 1; Peristaltic pump The inlet end of 2 is connected to a polytetrafluoroethylene tube, and it is inserted into the reactant in the reactor; the other end of the peristaltic pump 2 is connected to the glass separator 3 with a metal tube lined with polytetrafluoroethylene, and the glass separates The length-to-diameter ratio of the device is 8; the other end of the glass separator 3 is connected to a polytetrafluoroethylene tube, and is inserted into the reactor from the top (the nozzle does not contact the material in the reactor); a piece of magnetic induction intensity is placed outside the glass separator. 12.42×10 3 W h cm -2 The magnet 4; Condensation tube 5 plays a condensing role in the reaction process.

[001...

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Abstract

A continuous refiner during aluminum sol preparing process and its use are disclosed. The refiner can be used by removing iron and copper etc. purities continuously by reduction-magnetic separation process during aluminum sol preparing process and transferring out co-crystallization of Fe and Cu reduced. It decreases Fe2+ to above 90% and Cu2+ to above 70%, and costs low.

Description

Technical field: [0001] The invention relates to a continuous refining device in the preparation process of aluminum sol, which is mainly used for the synthesis and refining of aluminum sol in the process of preparing spherical alumina by oil column molding. technical background: [0002] The shape advantage of spherical alumina makes it evenly piled up in the bed when used as a catalyst or catalyst carrier, thereby enhancing the mass transfer effect and improving the catalytic efficiency. It has been widely used in many catalytic processes in petrochemical and fine chemical industries. [0003] At present, the main preparation methods of spherical alumina include oil column forming method, oil ammonia column forming method, spray ball forming method and rolling ball forming method, etc. Compared with other methods, the spherical alumina produced by the oil column molding method has the characteristics of uniform particle appearance, large pore volume, narrow pore size distr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F7/02C01F7/46
Inventor 李殿卿段雪张香梅
Owner BEIJING UNIV OF CHEM TECH