CN1042319A - The method of boron reduction in high-concentrated brine by resin - Google Patents
The method of boron reduction in high-concentrated brine by resin Download PDFInfo
- Publication number
- CN1042319A CN1042319A CN88107627A CN88107627A CN1042319A CN 1042319 A CN1042319 A CN 1042319A CN 88107627 A CN88107627 A CN 88107627A CN 88107627 A CN88107627 A CN 88107627A CN 1042319 A CN1042319 A CN 1042319A
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- CN
- China
- Prior art keywords
- boron
- resin
- bittern
- bed
- concentrated brine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Treatment Of Water By Ion Exchange (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The present invention be with salt type chelating large aperture boron selective ion exchange resin to the high-concentrated brine suction boron of directly going to bed, low boron of gained or ultralow boron bittern are the primary raw materials of producing magnesia and electrolytic metal magnesium.Carrying boron resin uses after diluted acid is regenerated repeatedly.Separate the boron of taking off, the method for freeing liquid through evaporation and concentration reclaims.This method is that new way has been opened up in the high-concentrated brine comprehensive utilization.
Description
What the present invention relates to is a kind ofly to make high-concentrated brine fall the method for boron with resin.Highly-purity magnesite, magnesium metal generally can extract from bittern or seawater.Because boron is harmful to final products magnesia, magnesium metal, therefore, is used to produce the bittern of highly-purity magnesite, magnesium metal or seawater and will makes to fall boron and handle.
In known technical literature " On the Development of Superior MgO Clinkers " and " purification of magnesium chloride bittern-Tuo boron ", reported the method for from seawater and boracic salting liquid, falling boron, MgCl
2302 grams per liters, B
2O
30.2 the boracic salting liquid of the following concentration of grams per liter can be in this way.Work as MgCl
2When content is higher than 302 grams per liters, there is sediment to assemble when falling boron, can not realizes normal running.
The present invention is directed to MgCl
2Content is greater than 302 grams per liters, until MgCl
2Up to 431 grams per liters, B
2O
31.0 falling in the bittern of grams per liter, handles boron.
The basic structure such as the accompanying drawing 1 of chelating large aperture boron selective ion exchange resin (or claiming effects of boron resin), this is a kind of strong acid weak base formula salt, hydrolysis easily in the aqueous solution is so claim free basic resin.If directly boron is fallen in the bromine waste liquid in dense salt lake bittern of height or sea salt chemical plant with this kind resin, a large amount of hydroxide ions that dissociate out on the resin combine the gluey magnesium hydrate precipitate thing of formation and stick to bittern can't be passed through with magnesium ion in the bittern.
The present invention handles the resin of said structure with a certain amount of 0.8～1.3 mol sulfuric acid or hydrochloric acid, makes it to be converted into sulfate type or hydrochloride type resin, sediment can not occur in inhaling the boron process.
Adopt two resin beds in the technological process device of the present invention, see accompanying drawing 2,3.2 and 3 can work independently and can tandem working, can obtain stable low boron or ultralow boron bittern like this, and can improve the utilization rate of resin.Operating process is at first high-concentrated brine to be entered 2 by accompanying drawing 4 to work independently.Require standard when (promptly surpassing the leakage point) when boron content in the bittern that accompanying drawing 5 flows out surpasses, go here and there upward 3, formation 2+3 works simultaneously by accompanying drawing 5 outflows.Cut away 2 and regenerate, 3 work independently.Next connect 2, form 3+2 and work simultaneously.Then cut away 3 regeneration, 2 work independently.So circulation repeatedly.The bed that cuts away will feed from accompanying drawing 8 with big current, flushing 2(or 3) interior unnecessary bittern, washing lotion is flowed out by accompanying drawing 9, cleans back regeneration.
During regeneration, regenerative agent feeds 2(or 3 by accompanying drawing 6), boracic is freed liquid and is flowed out from accompanying drawing 7.Be right after with water and feed by accompanying drawing 9, eject used acid amount for acid.Subsequently can be by accompanying drawing 9(or 8) wash unnecessary acid with big current, washing lotion is by accompanying drawing 8(or 9) flow out.
The existence of bubble causes bittern short circuit influence to fall effect of boron in the resin bed in order to overcome, and the present invention takes the water law resin to become the bed method, is about to the good resin of immersion treatment and inserts in the water-filled resin bed together with water, makes it form resin bed in water.In the washing of resin bed, inhale in boron, the regenerative process and do not make resin expose liquid level.
Because handled high-concentrated brine ratio weighs 1.33, if make bittern from top to bottom (following current) enter resin bed, then original liquid is difficult to discharge in the bed, and can make the bittern dilution influence product quality.The present invention adopts from bottom to top (adverse current) method of entering resin bed of bittern, and this problem is resolved.
Bittern flows through the speed of resin bed, and (the bittern scale that passes through with unit interval, unit are shows promptly centimetre
3/ (divide centimetre
2)) be the major parameter that falls boron technology.Certain resin bed height is worked under this flow velocity to best bittern flow velocity should be arranged, the suction boron capacity height of resin, and the qualified bittern quantity of output is big.
It is 0.8～1.0 centimetre that the present invention drafts the speed of bittern by resin bed
3/ (divide centimetre
2).
The present invention requires the acidity of the acid high-concentrated brine of sea salt chemical plant gained is adjusted to PH=3.5～5.
The present invention inhales regeneration behind the boron to resin, feeds with 1/2 bittern flow velocity (or flow) with 0.8～1.3 mol sulfuric acid of 0.5 left and right sides bed volume or hydrochloric acid and carries a boron resin bed, then with the unnecessary acid of water purification flushing, till PH=5～6 of outflow liquid.
Separate the boron of taking off from resin and can concentrate the method recovery of freeing liquid, also can discharge through neutralisation treatment with heating evaporation.
Example: will contain MgCl
2350～431 grams per liters, B
2O
30.6～1.0 grams per liters, PH=3.5～5 bittern, from the bottom with 0.8～1.0 centimetre
3/ (divide centimetre
2) flow velocity feed in single resin bed (50 millimeters of diameters, high 1000 millimeters, 1000 milliliters of interior dress resins).The low boron bittern amount that flows out is: B
2O
315 liters of the bittern amounts of 0.1 grams per liter are put in leakage; 12 liters of the bittern amounts of 0.05 grams per liter are put in leakage; 9 liters of the bittern amounts of 0.025 grams per liter are put in leakage.When the leakage point that flows out liquid surpassed set quota, resin bed quit work.Enter bed flushing resin with big current by the top with water purification, unnecessary bittern is washed off regenerated.
Regenerative agent is with 500～700 milliliters of 1.04 mol sulfuric acid or hydrochloric acid, flows into resin bed with 1/2 of bittern flow velocity by the bottom, again with the unnecessary acid (can positive and negatively wash) in the big current flushing resin bed, till outflow liquid PH=5～6.
Claims (5)
1, a kind ofly fall the method for boron with resin treatment bittern, it is characterized in that: handle free alkali formula chelating large aperture boron selective ion exchange resin (or claiming effects of boron resin) with diluted acid, make it to transform salify type resin, high-concentrated brine flows into resin bed and inhales boron; Carry and use repeatedly after boron resin is regenerated with diluted acid, boron can reclaim.
2, method according to claim 1 is characterized in that: 0.8～1.3 mol sulfuric acid or hydrochloric acid is used in the processing of resin and regeneration.
3, method according to claim 1 is characterized in that: bittern can be the bromine waste liquid or the salt lake bittern in sea salt chemical plant, MgCl
2Content 350～431 grams per liters, B
2O
30.6～1.0 grams per liters.
4, method according to claim 1 is characterized in that: the water law dress bed method that adopts resin and water to mix, and resin is not exposed in the air in the whole operation process.
5, method according to claim 1 is characterized in that: bittern refers to that by tree the bottom of bed flows into, and flow velocity is 0.8～1.0 centimetre
3/ (divide centimetre
2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88107627A CN1024126C (en) | 1988-11-02 | 1988-11-02 | Method for boron reduction in high-concentrated brine by resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88107627A CN1024126C (en) | 1988-11-02 | 1988-11-02 | Method for boron reduction in high-concentrated brine by resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1042319A true CN1042319A (en) | 1990-05-23 |
| CN1024126C CN1024126C (en) | 1994-04-06 |
Family
ID=4834713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88107627A Expired - Fee Related CN1024126C (en) | 1988-11-02 | 1988-11-02 | Method for boron reduction in high-concentrated brine by resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1024126C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994748A (en) * | 2012-12-27 | 2013-03-27 | 西安蓝晓科技新材料股份有限公司 | Fixed-bed adsorption method for removing boron from salt lake magnesium chloride brine |
| CN106167267A (en) * | 2015-05-21 | 2016-11-30 | 中国石油化工集团公司 | A kind of method of boron in separation and Extraction boron-containing solution |
| 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 |
| CN114772792A (en) * | 2022-05-23 | 2022-07-22 | 北部湾大学 | Seawater treatment method with synergistic effect of electrostatic adsorption and ultrasonic waves |
-
1988
- 1988-11-02 CN CN88107627A patent/CN1024126C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994748A (en) * | 2012-12-27 | 2013-03-27 | 西安蓝晓科技新材料股份有限公司 | Fixed-bed adsorption method for removing boron from salt lake magnesium chloride brine |
| CN106167267A (en) * | 2015-05-21 | 2016-11-30 | 中国石油化工集团公司 | A kind of method of boron in separation and Extraction boron-containing solution |
| 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 |
| CN114772792A (en) * | 2022-05-23 | 2022-07-22 | 北部湾大学 | Seawater treatment method with synergistic effect of electrostatic adsorption and ultrasonic waves |
| CN114772792B (en) * | 2022-05-23 | 2023-06-23 | 北部湾大学 | Seawater treatment method with synergistic effect of electrostatic adsorption and ultrasonic waves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1024126C (en) | 1994-04-06 |
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| CF01 | Termination of patent right due to non-payment of annual fee |