CN1412114A - New process for preparing anhydrous magnesium chloride - Google Patents
New process for preparing anhydrous magnesium chloride Download PDFInfo
- Publication number
- CN1412114A CN1412114A CN 01128932 CN01128932A CN1412114A CN 1412114 A CN1412114 A CN 1412114A CN 01128932 CN01128932 CN 01128932 CN 01128932 A CN01128932 A CN 01128932A CN 1412114 A CN1412114 A CN 1412114A
- Authority
- CN
- China
- Prior art keywords
- magnesium chloride
- hcl
- gas
- anhydrous
- anhydrous magnesium
- Prior art date
- 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.)
- Pending
Links
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title description 12
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 24
- 238000002485 combustion reaction Methods 0.000 claims abstract description 10
- 238000000197 pyrolysis Methods 0.000 claims abstract description 4
- 229940073589 magnesium chloride anhydrous Drugs 0.000 claims description 25
- 229960002337 magnesium chloride Drugs 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000000376 reactant Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 60
- 239000000843 powder Substances 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 28
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 28
- 239000007789 gas Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 10
- 238000011084 recovery Methods 0.000 description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 150000001805 chlorine compounds Chemical class 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000005243 fluidization Methods 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 230000009102 absorption Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229940091250 magnesium supplement Drugs 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The composite fluidized bed (combustino chamber and intercepting section) can be used as pyrolysis reactor, under the action of high-temp. HCl gas which is reactino product of H2 and Cl2 in combustion chamber the hydrated magnesium chloride power material can be directly decomposed into anhydrous magnesium chloride and aqueous vapour, the anhydrous magnesium chloride powder material is collected by gas-solid separator, one portion of gas phase product HCl is cleaned and fed into fluidized bed for circualting use, and the residual HCl can be prepared into industrial hydrochloric acid. The obtained anhydrous magnesium chlorid eproduct content can be greater than 90%, the hydrated magnesium chloride decomposition rate is greater than 95%, and the concentration of obtained industrial hydrochloric acid is 31-36% (wt).
Description
Involved in the present invention is by hydrated magnesium chloride (MgCl
22H
2O), H
2And Cl
2The Technology of preparation Magnesium Chloride Anhydrous and technical hydrochloric acid, the method of the definite usefulness of saying so " the compound flowing state heat-transmission is separated fast " prepares the Technology of Magnesium Chloride Anhydrous and technical hydrochloric acid, belong to the fluidization reaction engineering, industrial Magnesium Chloride Anhydrous and technical hydrochloric acid preparation field.
Magnesium Chloride Anhydrous is a kind of raw material of main production MAGNESIUM METAL, and China does not have big industrial production Magnesium Chloride Anhydrous always.The production research of industry Magnesium Chloride Anhydrous is subjected to the attention of China always.
The method of Magnesium Chloride Anhydrous production at present has following several:
1, Chinese invention patent (1146757) provides a kind of fused solution or method of electrolyte that directly contains Magnesium Chloride Anhydrous from the hydrated magnesium chloride material production, generally is lower than the MgO of 0.2% (weight).This method comprises the steps a) hydrated magnesium chloride to be infeeded from the magnesium eletrolysis pond in the stove that contains molten electrolyte, produces fused solution, and furnace temperature remains on 450～650 ℃; B) will contain anhydrous hydrogen chloride gas simultaneously goes in the fused solution, straying quatity is lower than the theoretical amount of producing the required 2 moles of HCl of every mole of magnesium chloride from hydrated magnesium chloride, and the stirring fused solution keeps, and magnesium oxide is suspension in the fused solution, make the magnesium chloride dehydration, and with fused solution in MgO reaction so that in the fused solution, in 100% magnesium chloride equivalent, contain and be not more than 0.2% MgO, form the fused solution that contains the enrichment Magnesium Chloride Anhydrous.This complex process is not easy to operation.
2, Chinese invention patent: this patent utilization of " Magnesium Chloride Anhydrous " (1135743) makes hydrated magnesium chloride mix with glycol in container.Make the mixture dehydration in distillation tower, the glycol magnesium chloride solution that will dewater simultaneously pumps into crystallizer, in addition anhydrous ammonia gas is joined in the crystallizer simultaneously.Before introducing reactant, crystallizer is equipped with the saturated glycol of ammonia.Magnesium chloride hexammine slurry is pumped into the pressure filter from crystallizer continuously.In pressure filter, use by this crystallization of the satisfied methanol wash of ammonia.Washed crystallization is transported in the fluidized bed type calcining furnace, methyl alcohol is evaporated from crystallization under 120 ℃, under 450 ℃, make the crystallization calcining be Magnesium Chloride Anhydrous then.This complex process is not easy to industrial production.
The object of the present invention is to provide a kind of production technique of new preparation Magnesium Chloride Anhydrous.Manufacture hydrochloric acid is promptly used the direct pyrolysis hydrated magnesium chloride of fluidised method simultaneously, preparation Magnesium Chloride Anhydrous, manufacture hydrochloric acid simultaneously.In hydrated magnesium chloride powder input composite fluidization bed (combustion chamber+current-carrying section) reactor, raw material powder is by H in the combustion chamber
2And Cl
2The high temperature HCl gas effect that generates is decomposed rapidly down, product Magnesium Chloride Anhydrous powder reclaims the Magnesium Chloride Anhydrous powder through the Magnesium Chloride Anhydrous recovery system under the drive of high hot gas flow, again through after the interchanger cooling, a part of HCl in the gas phase then sends into fluidized bed circulation again and uses after the HCl refining plant purifies, to regulate the temperature and pressure in the fluidized-bed.Remaining HCl gas is sent into the absorption of HCl recovery system and is made technical hydrochloric acid.
Technology contents of the present invention comprises composite fluidization bed pyrolytic reaction device, Magnesium Chloride Anhydrous gathering system, the hydrogenchloride recycle system, hydrogenchloride recovery system.
The method that the present invention proposes is: by H
2And Cl
2Pyrolytic reaction takes place in heat exchange between the hydrated magnesium chloride powder in the high temperature HCl air-flow that combustion chambers burn produced of fluidized-bed and current-carrying section, and temperature remains on 550-700 ℃, the hydrated magnesium chloride decomposition of dewatering rapidly, and product is the anhydrous chlorides of rase magnesium powder.The solid product Magnesium Chloride Anhydrous is brought gas-solid separator into by high speed HCl air-flow, the separated and collection at this anhydrous chlorides of rase magnesium powder.Again with the gas phase thing after interchanger cooling, a part of HCl gas in the gas phase thing is then sent into fluidized bed circulation again and is used after the HCl refining plant purifies, to regulate the temperature and pressure in the fluidized-bed.Remaining HCl gas is sent into the absorption of HCl recovery system and is made technical hydrochloric acid.
Accompanying drawing has provided implements equipment configuration synoptic diagram of the present invention.The fluidized-bed reactor that this covering device is composited by combustion chamber and current-carrying section, gas-solid separator, interchanger, HCl recovery system and HCl circulation device are formed.
For avoiding the HCl gas leak to cause the atmospheric pollution of production plant, the air pressure of reactor furnace roof and back HCl recovery system and the recycle system can keep little negative pressure.
Effect of the present invention:
Magnesium Chloride Anhydrous preparation technology involved in the present invention is with H
2, Cl
2And hydrated magnesium chloride (MgCl
22H
2O) be raw material, can obtain anhydrous chlorides of rase magnesium products and technical hydrochloric acid.Technological process simply is easy to control, and the equipment capacity scope is big, is more suitable for large-scale industrial production, and the HCl component in the product gas phase is fully reclaimed, and makes technical hydrochloric acid.
The product index that reaches is as follows:
One. the anhydrous chlorides of rase Mg content is greater than 90%
Two. concentration of hydrochloric acid 31-36%
The three .HCl rate of recovery are greater than 94%
Embodiment:
Example 1: with hydrated magnesium chloride (MgCl
22H
2O) fine powder (20um-500um) is sent into the relevant condition of control in the composite fluidization bed bioreactor.
Chamber temperature is greater than 700 ℃, and regulating HCl gas feeding amount, to make throat temperature be 638 ℃, and furnace top pressure is controlled to be 0～-50mmH2O
Example 2: with example 1 condition, chamber temperature is greater than 700 ℃, and throat temperature is 633 ℃.
The result that the foregoing description obtained is as follows:
One, the hydrated magnesium chloride pyrolysis rate is greater than 95%
Two, the anhydrous chlorides of rase Mg content is greater than 90%
Three, concentration of hydrochloric acid 31～36%
Four, no HCl leaks in system and the production process, and contamination-free is discharged.
Claims (3)
1, a kind of hydrated magnesium chloride pyrolysis prepares the Technology of Magnesium Chloride Anhydrous, it is characterized in that the pyrolytic reaction device, the fluidized-bed that is composited by combustion chamber and current-carrying section, with high temperature HCl gas is heating medium and reactant, with particle diameter at the hydrated magnesium chloride of 20～500um near the combustion chamber the input reactor.
2,, it is characterized in that reactant HCl gas is by H according to the preparation Magnesium Chloride Anhydrous Technology of claim 1
2With Cl
2Synthetic in the combustion chamber, enter the reaction of current-carrying section and hydrated magnesium chloride again.
3, according to the preparation Magnesium Chloride Anhydrous Technology of claim 1, it is characterized in that collecting the product Magnesium Chloride Anhydrous after, a part of gas phase thing HCl sends into fluidized bed circulation and uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128932 CN1412114A (en) | 2001-10-08 | 2001-10-08 | New process for preparing anhydrous magnesium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128932 CN1412114A (en) | 2001-10-08 | 2001-10-08 | New process for preparing anhydrous magnesium chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1412114A true CN1412114A (en) | 2003-04-23 |
Family
ID=4668742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01128932 Pending CN1412114A (en) | 2001-10-08 | 2001-10-08 | New process for preparing anhydrous magnesium chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1412114A (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2260562C1 (en) * | 2004-07-23 | 2005-09-20 | Открытое акционерное общество "АВИСМА титано-магниевый комбинат" | Method of dehydration of chloromagnesium raw material and a device for its realization |
| RU2276101C2 (en) * | 2004-07-30 | 2006-05-10 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of reprocessing of the dust wastes formed at dehydration of the chlorine-magnesium raw materials |
| CN1295151C (en) * | 2004-07-24 | 2007-01-17 | 陈瑜 | Process for producing anhydrous magnesium chloride by microwave energy |
| RU2299178C1 (en) * | 2005-12-08 | 2007-05-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of processing carnallite dust formed at dehydration of magnesium-chloride material |
| RU2307792C2 (en) * | 2005-11-09 | 2007-10-10 | Закрытое акционерное общество ВНИИ Галургии (ЗАО ВНИИ Галургии) | Method of production of the artificial carnallite |
| CN100379682C (en) * | 2004-11-01 | 2008-04-09 | 中信国安盟固利新能源科技有限公司 | Method for preparing anhydrous magnesium chloride |
| RU2321541C2 (en) * | 2006-02-16 | 2008-04-10 | Открытое акционерное общество "РУСАЛ ВСЕРОССИЙСКИЙ АЛЮМИНИЕВО-МАГНИЕВЫЙ ИНСТИТУТ" (ОАО "РУСАЛ ВАМИ") | Method of dehydrating magnesium chloride salts and multicell heater for implementation of the method |
| RU2333153C1 (en) * | 2006-12-06 | 2008-09-10 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of carnallite dust handling from fluid-bed furnace scrubber |
| RU2334829C1 (en) * | 2006-12-22 | 2008-09-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of dehydration of chlorine magnesium salts in multichamber furnace of boiling bed |
| RU2334679C1 (en) * | 2007-03-20 | 2008-09-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of dehydration of chlorine-magnesium raw material |
| RU2339577C1 (en) * | 2007-03-14 | 2008-11-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Dehydration method for chlorine-magnesium raw materials and facility for its implementation |
| RU2367602C1 (en) * | 2007-12-17 | 2009-09-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method for obtaining of synthetic carnallite for electrolytic magnesium and chlorine preparation |
| RU2367603C2 (en) * | 2007-11-19 | 2009-09-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Multi-chamber fluidised bed furnace to dehydrate chlorine-magnesium stock |
| RU2370441C1 (en) * | 2008-05-15 | 2009-10-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of preparation of chlorine-magnesium raw material for production of magnesium by electrolysis of melted salts |
| RU2370440C1 (en) * | 2008-06-06 | 2009-10-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of processing carnallite dust from cyclons of fluid-bed furnace |
| RU2380317C1 (en) * | 2008-10-24 | 2010-01-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of preparing carnallite ore for electrolytic production of magnesium and chlorine |
| CN101343073B (en) * | 2008-05-12 | 2010-06-09 | 部燕茹 | Dewatering industrial stove for carnaillite hydrous chloromagnesite |
| RU2395456C1 (en) * | 2009-03-18 | 2010-07-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of processing carnallite dust from fluidised bed furnace cyclones |
| RU2400425C2 (en) * | 2008-12-30 | 2010-09-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Procedure for preparing carnallite raw material to electrolytic production of magnesium and chlorine |
| CN107208287A (en) * | 2014-12-10 | 2017-09-26 | 联盟镁公司 | By the way that two hydrated magnesium chlorides to be dehydrated to the method to produce magnesium metal |
| RU2677448C1 (en) * | 2018-02-05 | 2019-01-16 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Method for preparation of electrolyte for electrolytic preparation of magnesium and chlorine and device for its implementation |
| CN112250093A (en) * | 2020-10-20 | 2021-01-22 | 青海盐湖工业股份有限公司 | Method and system for preparing magnesium chloride |
-
2001
- 2001-10-08 CN CN 01128932 patent/CN1412114A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2260562C1 (en) * | 2004-07-23 | 2005-09-20 | Открытое акционерное общество "АВИСМА титано-магниевый комбинат" | Method of dehydration of chloromagnesium raw material and a device for its realization |
| CN1295151C (en) * | 2004-07-24 | 2007-01-17 | 陈瑜 | Process for producing anhydrous magnesium chloride by microwave energy |
| RU2276101C2 (en) * | 2004-07-30 | 2006-05-10 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of reprocessing of the dust wastes formed at dehydration of the chlorine-magnesium raw materials |
| CN100379682C (en) * | 2004-11-01 | 2008-04-09 | 中信国安盟固利新能源科技有限公司 | Method for preparing anhydrous magnesium chloride |
| RU2307792C2 (en) * | 2005-11-09 | 2007-10-10 | Закрытое акционерное общество ВНИИ Галургии (ЗАО ВНИИ Галургии) | Method of production of the artificial carnallite |
| RU2299178C1 (en) * | 2005-12-08 | 2007-05-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of processing carnallite dust formed at dehydration of magnesium-chloride material |
| RU2321541C2 (en) * | 2006-02-16 | 2008-04-10 | Открытое акционерное общество "РУСАЛ ВСЕРОССИЙСКИЙ АЛЮМИНИЕВО-МАГНИЕВЫЙ ИНСТИТУТ" (ОАО "РУСАЛ ВАМИ") | Method of dehydrating magnesium chloride salts and multicell heater for implementation of the method |
| RU2333153C1 (en) * | 2006-12-06 | 2008-09-10 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of carnallite dust handling from fluid-bed furnace scrubber |
| RU2334829C1 (en) * | 2006-12-22 | 2008-09-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of dehydration of chlorine magnesium salts in multichamber furnace of boiling bed |
| RU2339577C1 (en) * | 2007-03-14 | 2008-11-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Dehydration method for chlorine-magnesium raw materials and facility for its implementation |
| RU2334679C1 (en) * | 2007-03-20 | 2008-09-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of dehydration of chlorine-magnesium raw material |
| RU2367603C2 (en) * | 2007-11-19 | 2009-09-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Multi-chamber fluidised bed furnace to dehydrate chlorine-magnesium stock |
| RU2367602C1 (en) * | 2007-12-17 | 2009-09-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method for obtaining of synthetic carnallite for electrolytic magnesium and chlorine preparation |
| CN101343073B (en) * | 2008-05-12 | 2010-06-09 | 部燕茹 | Dewatering industrial stove for carnaillite hydrous chloromagnesite |
| RU2370441C1 (en) * | 2008-05-15 | 2009-10-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of preparation of chlorine-magnesium raw material for production of magnesium by electrolysis of melted salts |
| RU2370440C1 (en) * | 2008-06-06 | 2009-10-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of processing carnallite dust from cyclons of fluid-bed furnace |
| RU2380317C1 (en) * | 2008-10-24 | 2010-01-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of preparing carnallite ore for electrolytic production of magnesium and chlorine |
| RU2400425C2 (en) * | 2008-12-30 | 2010-09-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Procedure for preparing carnallite raw material to electrolytic production of magnesium and chlorine |
| RU2395456C1 (en) * | 2009-03-18 | 2010-07-27 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Method of processing carnallite dust from fluidised bed furnace cyclones |
| CN107208287A (en) * | 2014-12-10 | 2017-09-26 | 联盟镁公司 | By the way that two hydrated magnesium chlorides to be dehydrated to the method to produce magnesium metal |
| US10617995B2 (en) | 2014-12-10 | 2020-04-14 | Alliance Magnésium | Process for producing magnesium metal by dehydrating dihydrate magnesium chloride |
| RU2677448C1 (en) * | 2018-02-05 | 2019-01-16 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Method for preparation of electrolyte for electrolytic preparation of magnesium and chlorine and device for its implementation |
| CN112250093A (en) * | 2020-10-20 | 2021-01-22 | 青海盐湖工业股份有限公司 | Method and system for preparing magnesium chloride |
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