Continuous ion exchange device and method for removing boron from salt lake magnesium chloride brine

A technology of continuous ion and exchange device, applied in the direction of improving process efficiency, to achieve the effect of high degree of automation, stable product concentration and saving consumption
CN102703703AActive Publication Date: 2012-10-03SUNRESIN NEW METERIALS CO LTD XIAN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUNRESIN NEW METERIALS CO LTD XIAN
Publication Date
2012-10-03

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Abstract

The invention discloses a continuous ion exchange device and method for removing boron from salt lake magnesium chloride brine. The device comprises resin, a plurality of resin columns used for loading the resin, a feeding header pipe and a discharging header pipe, wherein the feeding header pipe is communicated with the upper end of the same resin column; the discharging header pipe is communicated with the lower end of the same resin column; the resin columns are successively connected in series by a serial pipeline; a brine adsorption boron removal group, a leaching group, a desorption group, a back-washing group and a material top water group which are moved and circularly operated in sequence are formed therebetween; and each feeding branch pipe and each discharging branch pipe are respectively provided with a control valve used for harmoniously controlling all groups of resin columns to realize ion exchanging, leaching and desorbing processes in turn. Compared with the prior art, the continuous ion exchange device disclosed by the invention is simple, is convenient to operate, and has the advantages of high automation degree, small resin use amount, high use ratio, stable product concentration and high concentration of qualified liquid.
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Description

technical field

[0001] The invention relates to a continuous ion exchange device, in particular to a continuous ion exchange device for removing boron from magnesium chloride brine in a salt lake, and also relates to a continuous ion exchange method for removing boron from magnesium chloride brine in a salt lake by using the device. Background technique

[0002] After the potassium salt is extracted from salt lake brine, a large amount of brine is produced as a by-product, that is, magnesium chloride solution, which is an important raw material for the production of metal magnesium. For every ton of potassium chloride produced, 10 tons of bischofite (magnesium chloride containing six waters of crystallization) are produced. Bischofite is a chemical raw material, which can produce many kinds of downstream products, such as magnesium oxide, high-purity magnesium products, carnasite, etc. For example, magnesium chloride extracted from salt lake brine is used as raw material to...

Claims

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