CN102994748A - Fixed-bed adsorption method for removing boron from salt lake magnesium chloride brine - Google Patents
Fixed-bed adsorption method for removing boron from salt lake magnesium chloride brine Download PDFInfo
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- CN102994748A CN102994748A CN2012105794662A CN201210579466A CN102994748A CN 102994748 A CN102994748 A CN 102994748A CN 2012105794662 A CN2012105794662 A CN 2012105794662A CN 201210579466 A CN201210579466 A CN 201210579466A CN 102994748 A CN102994748 A CN 102994748A
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- boron
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a fixed-bed adsorption method for removing boron from salt lake magnesium chloride brine. The fixed-bed adsorption method comprises the following steps: (1), adsorbing: removing boron ion in the salt lake magnesium chloride brine containing boron through resin; (2), leaching: removing the residual brine in the resin which is adsorbed with boron by a leaching agent, returning the brine to a drying salt pond; (3), desorbing: removing the born adsorbed on the leached resin by strippant, so that the resin recovers adsorptive property and can be re-used for an adsorption process. The method provided by the invention is adopted, so that the content of the boron in the magnesium chloride brine can be reduced to be lower than 1pp, and the removal rate of the boron reaches more than 99% for providing d a reliable and stable material to electrolyze magnesium chloride to produce magnesium metal.
Description
Technical field
The present invention relates to a kind of ADSORPTION IN A FIXED BED method of from the magnesium chloride bittern of salt lake, removing boron, be specifically related to a kind of through extracting the boron removal method in the sylvite salt lake magnesium chloride bittern electrolysis production MAGNESIUM METAL process afterwards.
Background technology
The salt lake resources of China is to be rich in very much in the world, all has superiority than the large state such as the U.S., Russia.The one, quantity is many, scale is large, and the 2nd, bury superficial.Except the main components such as sodium, potassium, magnesium, the salt lake also has the important mineral such as boron, lithium, and is also quite abundant.
Salt lake brine is through producing after the Repone K, for aobvious particularly important of the comprehensive exploitation problem of the bittern magnesium that is rich in magnesium chloride.One ton of Repone K of every production just produces 10 tons bischofite (magnesium chloride that contains six crystal water).Bischofite is industrial chemicals, can produce a variety of derived product, such as magnesium oxide, high purity magnesium product, light chlorine stone etc.When making raw material electrolysis production MAGNESIUM METAL with the magnesium chloride of salt lake brine extraction, owing to often containing boride in the electrolytic solution, can divide at negative electrode to parse boron, make the negative electrode passivation generate boronation magnesium, the magnesium globule that causes electrolysis to go out disperses, and seriously reduces current efficiency.As containing the approximately boron of 10ppm in the ionogen, just can make current efficiency be reduced to 50-60%.
Boron content is about about 20-350ppm in the magnesium chloride bittern of salt lake.During the electrolysis production MAGNESIUM METAL, if boron content is higher than 1ppm, will affect the efficient of electrolysis and the quality of the finished product, so need to remove the boron ion in the magnesium chloride bittern in the electrolysis production MAGNESIUM METAL process.
Present disclosed bittern boron removal method mainly contains two kinds.A kind of is resin adsorption method, namely utilizes the resin absorption method to remove boron in the magnesium chloride." the XSC-700 resin is to the absorption of boron in the salt lake brine " (Central South University's journal (natural science edition); the 6th phase of the 42nd volume June in 2011) reported once that use XSC-700 resin absorption method was except boron; but the method has just been carried out relevant experiment in laboratory scale, and the industrial applications of mass-producing and corresponding device are not introduced.Another is extraction process, namely utilizes the organic solvents such as extraction agent kerosene and alcohol to carry out extraction and back-extraction and gets except boron." the bittern extraction is except boron " (the 7th phase of " light metal " nineteen ninety-five) has corresponding report, but the extraction process technical process is complicated, production cost is very high, except boron content in the bittern behind the boron is 20-300ppm, also need just can reach in conjunction with other boron removal method the ingredient requirement of magnesium chloride bittern electrolytic process production MAGNESIUM METAL.
Summary of the invention
Technical problem to be solved by this invention is: the existing method of removing boron from the magnesium chloride bittern of salt lake is some lab scale verification experimental verifications, and industrialized concrete technical process and method are not provided.For this reason, the invention provides a kind of ADSORPTION IN A FIXED BED method of from the magnesium chloride bittern of salt lake, removing boron.
The present invention adopts following technical scheme:
A kind of ADSORPTION IN A FIXED BED method of removing boron from the magnesium chloride bittern of salt lake comprises the steps:
(1) absorption: the salt lake magnesium chloride bittern of boracic is removed wherein boron ion with certain rate of adsorption and temperature by resin;
(2) drip washing: the resin of attracts boron is passed through eluent with certain drip washing speed and temperature, remove the bittern that remains in the resin, bittern is turned back to shine the salt pond.
(3) desorb: the resin after the drip washing is passed through strippant with certain desorption rate and temperature, remove the boron that is adsorbed on the resin, make resin recover absorption property, can be reused for adsorption process.
Described rate of adsorption is 1-40BV/h;
Described drip washing speed is 1-10BV/h;
Described desorption rate is 1-20BV/h;
Described rate of adsorption is preferably 1-10BV/h;
Described drip washing speed is preferably 1-8BV/h;
Described desorption rate is preferably 1-5BV/h;
Described rate of adsorption is 1-5BV/h more preferably;
Described drip washing speed is 1-5BV/h more preferably;
Described desorption rate is 1-5BV/h more preferably.
Described adsorption temp is 5-90 ℃;
Described drip washing temperature is 5-90 ℃;
Described desorption temperature is 5-90 ℃;
Described adsorption temp is preferably 10-50 ℃;
Described drip washing temperature is preferably 20-35 ℃;
Described desorption temperature is preferably 10-30 ℃;
More preferably 20-35 ℃ of described adsorption temp;
More preferably 25-30 ℃ of described drip washing temperature;
More preferably 20-25 ℃ of described desorption temperature.
Described leacheate is deionized water;
Described stripping liquid is preferably a kind of in hydrochloric acid soln, sulphuric acid soln, phosphoric acid solution, salpeter solution, the acetic acid.
Described resin is the resin with macroporous structure.
Commercial run except boron in the existing salt lake brine has no report, and the present invention is through repeatedly experiment and long-term reliable authentication, and a kind of fixed bed production method of utilizing resin to remove boron in the magnesium chloride bittern of salt lake is provided.The present invention a kind of from the magnesium chloride bittern of salt lake except the fixed-bed approach of boron, can make boron content decrease in the magnesium chloride bittern to 1ppm, the clearance of boron reaches more than 99%, can be generating metal magnesium by electrolyzing magnesium chloride a kind of reliable and stable raw material is provided.
Embodiment
Embodiment 1
Resin LSC-800(Xi'an Sunresin New Materials Co., Ltd.)
Resin is as follows except the boron step:
(1) absorption: 600ml LSC-800 resin is packed in the Ф 30*1000mm synthetic glass post of jacketed, passing into the boron ion content is the salt lake magnesium chloride bittern of 273ppm, pass through resin with the 5BV/h flow velocity under 25 ℃, treatment capacity 10BV, get the effluent liquid compound sample through ICP(inductively coupled plasma spectrum generator) detect, the boron ion content is 0.7ppm, boron ion remaval rate 99.7%.
(2) drip washing: with the resin column that resin is housed after (1) absorption, pass into deionized water and replace the magnesium chloride bittern that remains in the resin.25 ℃ of lower 2BV/h flow velocitys pass through resin, consumption 2BV, and the instantaneous sample when getting effluent liquid 2BV end is measured 1.0g/ml with densometer, and effluent liquid is thorough near the drip washing of remaining feed liquid in the density explanation resin of water.
(3) desorb: with the resin column that resin is housed after (2) drip washing, pass into 4% hydrochloric acid soln and remove the boron ion that is adsorbed on the resin, recover the absorption property of resin.25 ℃ of lower 2BV/h flow velocitys are by resin, and consumption 3BV gets effluent liquid through ICP(inductively coupled plasma spectrum generator) detect, the boron ion content is 902ppm, the desorption efficiency of boron ion is 99.4%.
Embodiment 2-9
The different absorption of uniform temp are except contrast experiment under the boron speed
Resin LSC-800(Xi'an Sunresin New Materials Co., Ltd.), experimental installation is with embodiment 1, and the boron ion content of salt lake magnesium chloride bittern is 231ppm, 25 ℃ of service temperatures, get respectively the effluent liquid Samples by ICP and detect the boron ion content, and do contrast with boron ion remaval rate.
| Title | Bittern absorption is except boron speed (BV/h) | Boron contains (ppm) in the qualifying liquid | Boron clearance (%) |
| Embodiment 2 | 1 | 0.3 | 99.9 |
| Embodiment 3 | 2 | 0.8 | 99.6 |
| Embodiment 4 | 5 | 1.0 | 99.6 |
| Embodiment 5 | 10 | 2.3 | 99.0 |
| Embodiment 6 | 20 | 6.5 | 97.2 |
| Embodiment 7 | 30 | 8 | 96.5 |
| Embodiment 8 | 40 | 10 | 95.7 |
Embodiment 9-15
Identical absorption removes the boron contrast experiment except absorption under the boron speed differing temps
Resin LSC-800(Xi'an Sunresin New Materials Co., Ltd.), experimental installation is with embodiment 1, and the boron ion content of salt lake magnesium chloride bittern is 156ppm, rate of adsorption 2BV/h, get effluent liquid Samples by ICP detection boron ion content respectively, and doing contrast with boron ion remaval rate.
| Title | Temperature (℃) | Boron clearance (%) |
| Embodiment 9 | 5 | 97.34 |
| Embodiment 10 | 10 | 97.76 |
| Embodiment 11 | 20 | 98.22 |
| Embodiment 12 | 35 | 99.45 |
| Embodiment 13 | 50 | 99.73 |
| Embodiment 14 | 70 | 97.15 |
| Embodiment 15 | 90 | 96.74 |
Embodiment 16-21
Contrast experiment under the different drip washing speed of uniform temp.
Resin LSC-800(Xi'an Sunresin New Materials Co., Ltd.), experimental installation is with embodiment 1, and the absorption of learning from else's experience is except the resin after the boron, eluent is selected deionized water, consumption 5BV, 25 ℃ of service temperatures, instantaneous sample was measured density with densometer when drip washing finished.
| Title | Drip washing speed (BV/h) | Instantaneous sample density (g/ml) |
| Embodiment 16 | 1 | 1.000 |
| Embodiment 17 | 2 | 1.000 |
| Embodiment 18 | 5 | 1.000 |
| Embodiment 19 | 8 | 1.002 |
| Embodiment 20 | 10 | 1.007 |
| Embodiment 21 | 15 | 1.012 |
Embodiment 22-28
Contrast experiment under the identical drip washing speed differing temps.
Resin LSC-800(Xi'an Sunresin New Materials Co., Ltd.), experimental installation is with embodiment 1, and the absorption of learning from else's experience is except the resin after the boron, eluent is selected deionized water, consumption 5BV, drip washing speed 2BV/h, instantaneous sample was measured density with densometer when drip washing finished.
| Title | Temperature (℃) | Instantaneous sample density (g/ml) |
| Embodiment 22 | 5 | 1.007 |
| Embodiment 23 | 10 | 1.005 |
| Embodiment 24 | 20 | 1.000 |
| Embodiment 25 | 35 | 1.000 |
| Embodiment 26 | 50 | 1.002 |
| Embodiment 27 | 70 | 1.003 |
| Embodiment 28 | 90 | 1.003 |
Embodiment 29-33
Contrast experiment under the different desorption rates of uniform temp.
Resin LSC-800(Xi'an Sunresin New Materials Co., Ltd.), experimental installation is with embodiment 1, learn from else's experience resin (resin absorption boron capacity 3g/l) after the drip washing, strippant is selected 4% hydrochloric acid soln, consumption 5BV, 25 ℃ of service temperatures are got respectively the effluent liquid Samples by ICP and are detected the boron ion content, and do contrast with boron ion desorption efficiency.
| Title | Desorption rate (BV/h) | Boron content (ppm) in the stripping liquid | Desorption efficiency (%) |
| Embodiment 29 | 1 | 357.84 | 99.4 |
| Embodiment 30 | 2 | 356.76 | 99.1 |
| Embodiment 31 | 5 | 356.04 | 98.9 |
| Embodiment 32 | 10 | 351.00 | 97.5 |
| Embodiment 33 | 20 | 349.20 | 97.0 |
Embodiment 34-41
Contrast experiment under the identical desorption rate differing temps.
Resin LSC-800(Xi'an Sunresin New Materials Co., Ltd.), experimental installation is with embodiment 1, learn from else's experience resin (resin absorption boron capacity 3.3g/l) after the drip washing, strippant is selected 4% sulphuric acid soln, consumption 4BV, desorb flow velocity 2BV/h gets respectively the effluent liquid Samples by ICP and detects the boron ion content, and does contrast with boron ion remaval rate.
| Title | Desorption temperature (℃) | Boron content (ppm) in the stripping liquid | Desorption efficiency (%) |
| Embodiment 34 | 5 | 471.24 | 95.2 |
| Embodiment 35 | 10 | 475.70 | 96.1 |
| Embodiment 36 | 20 | 491.54 | 99.3 |
| Embodiment 37 | 25 | 493.02 | 99.6 |
| Embodiment 38 | 30 | 488.57 | 98.7 |
| Embodiment 39 | 50 | 472.23 | 95.4 |
| Embodiment 40 | 80 | 460.85 | 93.1 |
| Embodiment 41 | 90 | 451.44 | 91.2 |
Embodiment 42-46
Different strippant desorption effect contrast experiments.
Resin LSC-800(Xi'an Sunresin New Materials Co., Ltd.), experimental installation is with embodiment 1, learn from else's experience resin (resin absorption boron capacity 3.5g/l) after the drip washing, strippant is selected 6% hydrochloric acid soln, 5% sulphuric acid soln, 4% phosphoric acid solution, 4% salpeter solution, 8% acetum consumption 4BV, desorb flow velocity 2BV/h, 25 ℃ of temperature are got respectively the effluent liquid Samples by ICP and are detected the boron ion content, and do contrast with boron ion remaval rate.
| Title | Strippant | Boron content (ppm) in the stripping liquid | Desorption efficiency (%) |
| Embodiment 42 | 6% hydrochloric acid soln | 521.33 | 99.3 |
| Embodiment 43 | 5% sulphuric acid soln | 519.75 | 99.0 |
| Embodiment 44 | 4% phosphoric acid solution | 512.40 | 97.6 |
| Embodiment 45 | 4% salpeter solution | 519.23 | 98.9 |
| Embodiment 46 | 8% acetum | 515.55 | 98.2 |
Claims (8)
1. an ADSORPTION IN A FIXED BED method of removing boron from the magnesium chloride bittern of salt lake is characterized in that comprising the steps:
(1) absorption: the salt lake magnesium chloride bittern of boracic is removed wherein boron ion with certain rate of adsorption and temperature by resin;
(2) drip washing: the resin of attracts boron is passed through eluent with certain drip washing speed and temperature, remove the bittern that remains in the resin, bittern is turned back to shine the salt pond.
(3) desorb: the resin after the drip washing is passed through strippant with certain desorption rate and temperature, remove the boron that is adsorbed on the resin, make resin recover absorption property, can be reused for adsorption process.
According to claim 1 from the magnesium chloride bittern of salt lake except the ADSORPTION IN A FIXED BED method of boron, it is characterized in that:
Rate of adsorption is 1-40BV/h described in the step (1);
Drip washing speed is 1-10BV/h described in the step (2);
Desorption rate is 1-20BV/h described in the step (3).
According to claim 2 from the magnesium chloride bittern of salt lake except the ADSORPTION IN A FIXED BED method of boron, it is characterized in that:
Rate of adsorption is 1-10BV/h described in the step (1);
Drip washing speed is 1-8BV/h described in the step (2);
Desorption rate is 1-5BV/h described in the step (3).
According to claim 3 from the magnesium chloride bittern of salt lake except the ADSORPTION IN A FIXED BED method of boron, it is characterized in that:
Rate of adsorption is 1-5BV/h described in the step (1);
Drip washing speed is 1-5BV/h described in the step (2);
Desorption rate is 1-5BV/h described in the step (3).
According to claim 1 from the magnesium chloride bittern of salt lake except the ADSORPTION IN A FIXED BED method of boron, it is characterized in that:
Adsorption temp is 5-90 ℃ described in the step (1);
The drip washing temperature is 5-90 ℃ described in the step (2);
Desorption temperature is 5-90 ℃ described in the step (3).
According to claim 1 from the magnesium chloride bittern of salt lake except the ADSORPTION IN A FIXED BED method of boron, it is characterized in that:
Adsorption temp is preferably 10-50 ℃ described in the step (1);
The drip washing temperature is preferably 20-35 ℃ described in the step (2);
Desorption temperature is preferably 10-30 ℃ described in the step (3).
According to claim 1 from the magnesium chloride bittern of salt lake except the ADSORPTION IN A FIXED BED method of boron, it is characterized in that:
More preferably 20-35 ℃ of adsorption temp described in the step (1);
More preferably 25-30 ℃ of drip washing temperature described in the step (2);
More preferably 20-25 ℃ of desorption temperature described in the step (3).
8. the described ADSORPTION IN A FIXED BED method of removing boron from the magnesium chloride bittern of salt lake of arbitrary claim according to claim 1-7 is characterized in that:
Leacheate described in the step (2) is deionized water;
Stripping liquid described in the step (3) is a kind of in hydrochloric acid soln, sulphuric acid soln, phosphoric acid solution, salpeter solution, the acetic acid.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523801A (en) * | 2013-09-29 | 2014-01-22 | 中国地质科学院郑州矿产综合利用研究所 | Method for combined extraction of potassium, boron and lithium from chloride type potassium-containing underground brine |
| CN105198054A (en) * | 2014-06-10 | 2015-12-30 | 中国科学院过程工程研究所 | Method for removing boron in water body |
| CN105293652A (en) * | 2014-06-10 | 2016-02-03 | 中国科学院过程工程研究所 | Method for removing boron from water by using magnesite |
| CN105586499A (en) * | 2016-02-15 | 2016-05-18 | 华陆工程科技有限责任公司 | Deep boron removing method for lithium chloride solution |
| CN106917108A (en) * | 2017-03-20 | 2017-07-04 | 青海盐湖工业股份有限公司 | A kind of production technology of magnesium metal |
| CN107445238A (en) * | 2017-07-28 | 2017-12-08 | 江苏昌吉利新能源科技有限公司 | A kind of resin boron removal method of the bittern containing lithium |
| CN108396159A (en) * | 2018-03-19 | 2018-08-14 | 青海盐湖工业股份有限公司 | Brine refining device and Brine Purification Process in a kind of salt lake bittern magnesium technology |
| CN113321652A (en) * | 2021-06-30 | 2021-08-31 | 山东鲁抗医药股份有限公司 | Boron removing method of moxifloxacin hydrochloride and preparation method of moxifloxacin hydrochloride pure product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042319A (en) * | 1988-11-02 | 1990-05-23 | 冶金工业部洛阳耐火材料研究院 | The method of boron reduction in high-concentrated brine by resin |
| CN101676206A (en) * | 2008-09-19 | 2010-03-24 | 于网林 | Boron extraction technology |
| CN102703703A (en) * | 2012-05-21 | 2012-10-03 | 西安蓝晓科技新材料股份有限公司 | Continuous ion exchange device and method for removing boron from salt lake magnesium chloride brine |
-
2012
- 2012-12-27 CN CN2012105794662A patent/CN102994748A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042319A (en) * | 1988-11-02 | 1990-05-23 | 冶金工业部洛阳耐火材料研究院 | The method of boron reduction in high-concentrated brine by resin |
| CN101676206A (en) * | 2008-09-19 | 2010-03-24 | 于网林 | Boron extraction technology |
| CN102703703A (en) * | 2012-05-21 | 2012-10-03 | 西安蓝晓科技新材料股份有限公司 | Continuous ion exchange device and method for removing boron from salt lake magnesium chloride brine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523801A (en) * | 2013-09-29 | 2014-01-22 | 中国地质科学院郑州矿产综合利用研究所 | Method for combined extraction of potassium, boron and lithium from chloride type potassium-containing underground brine |
| CN105198054A (en) * | 2014-06-10 | 2015-12-30 | 中国科学院过程工程研究所 | Method for removing boron in water body |
| CN105293652A (en) * | 2014-06-10 | 2016-02-03 | 中国科学院过程工程研究所 | Method for removing boron from water by using magnesite |
| CN105293652B (en) * | 2014-06-10 | 2018-06-22 | 中国科学院过程工程研究所 | It is a kind of to carry out method of the water body except boron using magnesite |
| CN105586499A (en) * | 2016-02-15 | 2016-05-18 | 华陆工程科技有限责任公司 | Deep boron removing method for lithium chloride solution |
| CN106917108A (en) * | 2017-03-20 | 2017-07-04 | 青海盐湖工业股份有限公司 | A kind of production technology of magnesium metal |
| CN107445238A (en) * | 2017-07-28 | 2017-12-08 | 江苏昌吉利新能源科技有限公司 | A kind of resin boron removal method of the bittern containing lithium |
| CN108396159A (en) * | 2018-03-19 | 2018-08-14 | 青海盐湖工业股份有限公司 | Brine refining device and Brine Purification Process in a kind of salt lake bittern magnesium technology |
| CN113321652A (en) * | 2021-06-30 | 2021-08-31 | 山东鲁抗医药股份有限公司 | Boron removing method of moxifloxacin hydrochloride and preparation method of moxifloxacin hydrochloride pure product |
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Application publication date: 20130327 |