CN107364879B - The method of magnesium elements and calcium constituent is recycled from Adlerika - Google Patents
The method of magnesium elements and calcium constituent is recycled from Adlerika Download PDFInfo
- Publication number
- CN107364879B CN107364879B CN201710517357.0A CN201710517357A CN107364879B CN 107364879 B CN107364879 B CN 107364879B CN 201710517357 A CN201710517357 A CN 201710517357A CN 107364879 B CN107364879 B CN 107364879B
- Authority
- CN
- China
- Prior art keywords
- magnesium
- calcium
- adlerika
- hydroxide
- chloride solution
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/24—Magnesium carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/46—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/60—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape characterised by shape
- C30B29/62—Whiskers or needles
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B7/00—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions
- C30B7/10—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions by application of pressure, e.g. hydrothermal processes
Abstract
The method that the present invention provides a kind of to recycle magnesium elements and calcium constituent from Adlerika.This method comprises: Adlerika and calcium chloride are carried out neutralization reaction, magnesium chloride solution and gypsum are obtained, includes calcium ion in Adlerika；So that magnesium chloride solution and calcium hydroxide is carried out metathesis reaction, obtains calcium chloride solution and magnesium hydroxide crude product；Magnesium hydroxide crude product and carbon dioxide are subjected to carburizing reagent, obtain magnesium bicarbonate solution；And magnesium bicarbonate solution carries out pyrolysis, obtains basic magnesium carbonate.By recovery method provided by the present application, the calcium constituent being not only able in recycling Adlerika, but also magnesium elements therein can be recycled, and above two element all has higher purity.
Description
Technical field
The present invention relates to field of hydrometallurgy, and magnesium elements and calcium are recycled from Adlerika in particular to one kind
The method of element.
Background technique
At present in many industrial circles, a large amount of containing magnesium waste liquids are often generated.Similarly, in hydrometallurgy process
In, solution largely containing magnesium sulfate can be generated by carrying out Ore Leaching to magnesium-containing ore.For magnesium sulfate also referred to as " misery ", being can
Cause the noxious material of people's diarrhea, therefore country forbids the direct discharging of waste water containing magnesium sulfate.
For magnesium sulfate containing waste water processing method there are mainly two types of mode: first is that waste water is concentrated by evaporation, crystallisation by cooling,
Epsom salt is made, i.e., domestic common fertiliser containing magnesium；Second is that preparing magnesium hydroxide by alkaline process.Former approach is steamed frequently with multiple-effect
Hair technique, 1 ton of waste water of every processing need to consume 0.3 ton or more steam, and energy consumption is high, and product epsom salt value is low, therefore passes through
Ji property is poor.Later approach uses sodium hydroxide as precipitating reagent, and excessive caustic soda, which is added, precipitates magnesium ion completely, then mistake
Filter washing is dry, and prepared high-quality magnesium hydroxide has larger market, but the desulphurization mother solution after preparing magnesium hydroxide turns
Be melted into sulfur acid mother liquid of sodium, still need to be further processed, there are complex technical process, mother liquid disposal is costly the defects of.On simultaneously
Method is stated without the resource of effective recycling magnesium elements and calcium constituent simultaneously.
Summary of the invention
The method that the main purpose of the present invention is to provide a kind of to recycle magnesium elements and calcium constituent from Adlerika, with
The magnesium elements and calcium constituent solved in existing magnesium-containing waste solution cannot be utilized effectively simultaneously, and what is resulted in waste of resources asks
Topic.
To achieve the goals above, one aspect of the invention provides one kind and recycles magnesium elements and calcium from Adlerika
The method of element, method include: that Adlerika and calcium chloride are carried out neutralization reaction, obtain magnesium chloride solution and gypsum, sulphur
It include calcium ion in sour magnesium solution；So that magnesium chloride solution and calcium hydroxide is carried out metathesis reaction, obtains calcium chloride solution and hydrogen
Magnesia crude product；Magnesium hydroxide crude product and carbon dioxide are subjected to carburizing reagent, obtain magnesium bicarbonate solution；And bicarbonate
Magnesium solution carries out pyrolysis, obtains basic magnesium carbonate.
Further, neutralization reaction includes: to mix calcium chloride with water, obtains saturation calcium chloride solution；And chlorine will be saturated
Change calcium solution and Adlerika carries out neutralization reaction, obtains magnesium chloride solution and gypsum；Preferably sulfuric acid magnesium and calcium chloride rub
The ratio between your number is 1:1~2.
Further, calcium hydroxide is provided by milk of lime, and preferably the solid content of milk of lime is 10~20wt%.
Further, in metathesis reaction, the ratio between molal quantity of magnesium chloride and calcium hydroxide in magnesium chloride solution is 1:1
~2.
Further, the temperature of carburizing reagent is 5~45 DEG C.
Further, the temperature of thermal decomposition is 50~100 DEG C.
Further, method further include: the mixture of gypsum and additive is heated in autoclave, obtains gypsum
The step of whisker, additive include dispersing agent；It is preferred that the temperature of heating process is 50~150 DEG C；Preferred dispersants are selected from 12
One of sodium alkyl benzene sulfonate, lauryl sodium sulfate, group of Tween-80, sodium phosphate, ethyl alcohol and polyethylene glycol composition are more
Kind.
Further, additive further includes flocculant, and preferably flocculant is polyacrylamide.
Further, between carburizing reagent and pyrolysis, method further include: molten with calcium remover removal magnesium bicarbonate
Calcium ion in liquid, obtains intermediate product；And intermediate product is subjected to pyrolysis, obtain basic magnesium carbonate；It is preferred that deliming
Agent is selected from one of group of sodium hydroxide, potassium hydroxide and ammonium hydroxide composition or a variety of.
Further, the ratio between molal quantity of the calcium ion in magnesium bicarbonate solution and calcium remover is 1:1~5.
It applies the technical scheme of the present invention, it is first that magnesium sulfate is molten due to containing some calcium ion in Adlerika
Liquid and calcium chloride carry out neutralization reaction, obtain magnesium chloride solution and gypsum.This aspect can be by calcium ion as gypsum
Recycling, on the other hand due to inherently containing calcium ion in magnesium chloride solution, thus uses original of the calcium chloride as neutralization reaction
Material also helps the introducing for reducing impurity.Above-mentioned magnesium chloride solution and calcium hydroxide are subjected to metathesis reaction, magnesium can be made first
Element is recycled in the form of magnesium hydroxide.Due to containing a certain amount of impurity in above-mentioned magnesium hydroxide crude product, thus pass through
Magnesium elements are converted basic magnesium carbonate by subsequent carburizing reagent and pyrolysis.This is conducive to through carburizing reagent and heat point
Solution reaction improves the purity (purity of the magnesium elements recycled) of basic magnesium carbonate.It can be seen that passing through provided by the present application time
Receiving method, the calcium ion being not only able in recycling Adlerika, but also magnesium ion therein can be recycled, and above-mentioned two
Kind element all has higher purity.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.Below in conjunction with embodiment, the present invention will be described in detail.
As described in background technique, magnesium elements and calcium constituent in existing magnesium-containing waste solution cannot obtain effectively simultaneously
The problem of utilizing, and resulting in waste of resources.In order to solve the above-mentioned technical problems, the present invention provides one kind from Adlerika
The method for recycling magnesium elements and calcium constituent obtains chlorination this method comprises: Adlerika and calcium chloride are carried out neutralization reaction
Magnesium solution and gypsum include calcium ion in Adlerika；Magnesium chloride solution and calcium hydroxide carry out metathesis reaction, obtain chlorine
Change calcium solution and magnesium hydroxide crude product；Magnesium hydroxide crude product and carbon dioxide are subjected to carburizing reagent, obtain magnesium bicarbonate
Solution；And magnesium bicarbonate solution carries out pyrolysis, obtains basic magnesium carbonate.
In recovery method provided by the present application, due to containing some calcium ion in Adlerika, first by magnesium sulfate
Solution and calcium chloride carry out neutralization reaction, obtain magnesium chloride solution and gypsum.This aspect can be by calcium ion with the shape of gypsum
Formula recycling, on the other hand due to inherently containing calcium ion in magnesium chloride solution, thus uses calcium chloride as neutralization reaction
Raw material also helps the introducing for reducing impurity.Above-mentioned magnesium chloride solution and calcium hydroxide are subjected to metathesis reaction, magnesium can be made
Element is recycled in the form of magnesium hydroxide.Due to containing a certain amount of impurity in above-mentioned magnesium hydroxide crude product, pass through carbon
Change reaction and pyrolysis and convert basic magnesium carbonate for magnesium elements, the purity for being conducive to improve basic magnesium carbonate (recycles
Magnesium elements purity).It can be seen that being not only able in recycling Adlerika by recovery method provided by the present application
Calcium constituent, but also magnesium elements therein can be recycled, and above two element all has higher purity.
It is preferred that carrying out among the above and after the reaction was completed dense.It can be made by means of gravitational settling in dense step process
With, magnesium chloride solution is formed into overflow in the form of clear liquid, and gypsum then forms underflow in the form of ore pulp, this is conducive to improve
The separative efficiency of the two.
It is preferred that the calcium chloride solution that metathesis reaction is obtained is concentrated, the calcium chloride solution being saturated, and will be upper
The calcium chloride solution for stating saturation is recycled as the raw material of neutralization reaction, this advantageously reduces process costs.
In a preferred embodiment, above-mentioned neutralization reaction includes: to mix calcium chloride with water, obtains saturation chlorination
Calcium solution；And it will be saturated calcium chloride solution and Adlerika progress neutralization reaction, obtain magnesium chloride solution and gypsum.Among the above
Be conducive to improve sulfuric acid in neutralization reaction with neutralization reaction is carried out using the saturated solution of calcium chloride and Adlerika in reaction
The conversion ratio of magnesium.
In a preferred embodiment, the ratio between molal quantity of magnesium sulfate and calcium chloride is 1:1~2.Above-mentioned recycling side
In method, the proportionate relationship of magnesium sulfate and calcium chloride includes but is not limited to above range, and is limited advantageous within the above range
In the yield for further increasing gypsum.
In a preferred embodiment, in above-mentioned neutralization reaction, calcium hydroxide is provided by milk of lime, this is conducive to mention
The concentration of high calcium hydroxide, to be conducive to improve the yield of magnesium hydroxide.The solid content of preferred milk of lime is 10~
20wt%.Will in a preferred embodiment, in metathesis reaction, hydrogen in the magnesium chloride and milk of lime in magnesium chloride solution
The ratio between molal quantity of calcium oxide is 1:1~1.2.In above-mentioned metathesis reaction, in the magnesium chloride and milk of lime in magnesium chloride solution
The ratio between molal quantity of calcium hydroxide includes but is not limited to above range, and is limited within the above range, is conducive to improve multiple
The yield of magnesium hydroxide crude product in decomposition reaction.
In above-mentioned recovery method, the temperature of carburizing reagent can choose temperature commonly used in the art.In a kind of preferred reality
It applies in mode, the temperature of carburizing reagent is 5~45 DEG C.Within the above range by the limit temperature of carburizing reagent, be conducive to improve
The reaction rate of carburizing reagent.
In above-mentioned recovery method, as long as the temperature of thermal decomposition can be such that magnesium bicarbonate decomposes.In a kind of preferred reality
It applies in mode, the temperature of thermal decomposition is 50~100 DEG C.The temperature of thermal decomposition includes but is not limited to above range, and is limited
Within the above range, be conducive to improve the resolution ratio of magnesium bicarbonate in thermal decomposition process.
In above-mentioned recovery method, those skilled in the art can choose the preparation side that crystal whisker of gypsum is commonly prepared by gypsum
Method.In a preferred embodiment, the above method further includes carrying out the mixture of gypsum and additive in autoclave
The step of heating, obtaining crystal whisker of gypsum, additive includes dispersing agent.Gypsum and dispersant can be made into gypsum in water
It is dispersed more preferable, then it may advantageously facilitate gypsum dehydration by carrying out heating in autoclave, and then form crystal whisker of gypsum.It is preferred that
The temperature of heating process is 50~150 DEG C.Within the above range by the limit temperature of heating, be conducive to further increase gypsum crystalline substance
The formation efficiency of palpus.Preferably, above-mentioned dispersing agent includes but is not limited to neopelex, lauryl sodium sulfate, spits
One of temperature -80, group of sodium phosphate, ethyl alcohol and polyethylene glycol composition are a variety of.Above-mentioned dispersing agent has excellent dispersibility
Can, and it is cheap, thus select above-mentioned several substances to prepare crystal whisker of gypsum and be conducive to improve the draw ratio of crystal whisker of gypsum, and drop
Low process costs.
In a preferred embodiment, above-mentioned additive further includes flocculant.The addition of flocculant is conducive to adjust
The draw ratio of crystal whisker of gypsum.It is preferred that flocculant includes but is not limited to polyacrylamide.Select above-mentioned polyacrylamide as flocculation
Agent is conducive to further increase the separating effect of crystal whisker of gypsum and aqueous solution, and then improves its yield.
Above-mentioned recovery method provided by the present application, can not only recycle the magnesium elements in Adlerika, additionally it is possible to recycle
Calcium constituent therein, it is thus possible to avoid the waste of resource.In a preferred embodiment, in carburizing reagent and thermal decomposition
Between reaction, above-mentioned recovery method further include: with the calcium ion in calcium remover removal magnesium bicarbonate solution, obtain intermediate product；
And intermediate product is subjected to pyrolysis, obtain basic magnesium carbonate.Due in magnesium bicarbonate solution contain a certain amount of calcium from
Son, thus calcium remover is added in phase magnesium bicarbonate solution in order to improve the purity of the magnesium elements of recycling, in the application, to remove carbon
Calcium ion in sour hydrogen magnesium solution.Then the higher basic magnesium carbonate of purity is obtained by pyrolysis.
In a preferred embodiment, calcium remover includes but is not limited to sodium hydroxide, potassium hydroxide and ammonium hydroxide composition
One of group or a variety of.As long as calcium remover can be such that calcium ion precipitates in above-mentioned recovery method, and on selecting
State the sedimentation effect that several calcium removers are conducive to improve calcium ion.
In a preferred embodiment, the ratio between molal quantity of the calcium ion in magnesium bicarbonate solution and calcium remover is 1:
1~1.5.The ratio between molal quantity of calcium ion and calcium remover in magnesium bicarbonate solution includes but is not limited to above range, and by the phase
Limit the removal efficiency for being conducive to further increase calcium ion within the above range.
Below in conjunction with specific embodiment, present invention is further described in detail, these embodiments should not be understood as limitation originally
Invent range claimed.
Embodiment 1
The Adlerika of 1000mL24g/L is reacted and dense with calcium chloride, obtains 800mL24g/L magnesium chloride
The ratio between molal quantity of solution (overflow) and 340g gypsum ore pulp (underflow), magnesium sulfate and calcium chloride is 1:1.
So that the milk of lime of above-mentioned magnesium chloride solution and solid content 10wt% is carried out metathesis reaction, it is dilute molten to obtain calcium chloride
Liquid and 1 magnesium hydroxide, wherein the ratio between calcium hydroxid is 1:1.05 in the magnesium chloride and milk of lime in magnesium chloride solution.
Above-mentioned magnesium hydroxide and carbon dioxide carry out carburizing reagent at 25 DEG C, obtain the magnesium bicarbonate of 1000mL1mol/L
Solution.
It is 1:5 by the ratio between the molal quantity of calcium ion and calcium remover (sodium hydroxide) in magnesium bicarbonate solution, by above-mentioned carbon
Sour hydrogen magnesium solution is mixed with calcium remover (sodium hydroxide), obtains intermediate product；And
By above-mentioned intermediate product in 80 DEG C of progress heat resolves, basic carbonate magnesium products are obtained.
At normal temperature, 300g gypsum ore pulp is mixed with 2g additive (neopelex), and crosses diafiltration
After washing, the crystal whisker of gypsum material that draw ratio is 50 is obtained.
Embodiment 2
The difference from embodiment 1 is that the ratio between molal quantity of magnesium sulfate and the calcium chloride is 1 during neutralization reaction:
3.As a result calcium ion is excessive in the magnesium chloride solution obtained for neutralization reaction, causes calcium chloride to waste, needs in the follow-up process
A large amount of calcium remover is consumed to be removed extra calcium ion.
Embodiment 3
The difference from embodiment 1 is that making magnesium chloride solution and the calcium hydroxide aqueous solution of 5wt% in metathesis reaction
Carry out metathesis reaction.It as a result is entire metathesis reaction process, the volume expansion of reaction system is too big, and by reaction unit
Natural scale limitation, using the calcium hydroxide aqueous solution of above-mentioned percentage composition be unfavorable for shorten reaction time.
Embodiment 4
The difference from embodiment 1 is that in metathesis reaction, hydroxide in the magnesium chloride and milk of lime in magnesium chloride solution
The ratio between molal quantity of calcium is 1:3.As a result in metathesis reaction, milk of lime is excessive, cause subsequent calcium remover consumption excessive.
Embodiment 5
The difference from embodiment 1 is that the temperature of thermal decomposition is 110 DEG C.It will cause when be as a result pyrolysis temperature being 110 DEG C
The energy consumption of pyrolytic process is excessively high, and the granularity of the basic carbonate magnesium products obtained after being pyrolyzed is larger, easily reunites.
Embodiment 6
The difference from embodiment 1 is that the temperature of carburizing reagent is 60 DEG C.It as a result is carbon dioxide in carbonation reaction
Dissolubility is poor, and carbonized product (magnesium bicarbonate) decomposes seriously, causes the yield of carbonized product lower, and then lead to basic carbonate
The yield of magnesium is lower.
Embodiment 7
The difference from embodiment 1 is that during deliming, the molal quantity of calcium ion and calcium remover in magnesium bicarbonate solution
The ratio between be 1:15.As a result product purity can be made to reduce for the too big and extra calcium remover of calcium remover consumption.
Embodiment 8
The difference from embodiment 1 is that calcium remover is ammonium hydroxide.
Embodiment 9
The difference from embodiment 1 is that dispersing agent is sodium phosphate during preparing crystal whisker of gypsum.
Embodiment 10
The difference from embodiment 1 is that dispersing agent is Tween-80 during preparing crystal whisker of gypsum.
Embodiment 11
The difference from embodiment 1 is that being added without surfactant during preparing crystal whisker of gypsum.
Embodiment 12
The difference from embodiment 1 is that being also added into flocculant (polyacrylamide) during deliming.
Embodiment 13
The difference from embodiment 1 is that the temperature heated during preparing crystal whisker of gypsum is 50 DEG C.
Embodiment 14
The difference from embodiment 1 is that the temperature heated during preparing crystal whisker of gypsum is 150 DEG C.
The performance parameter of basic carbonate magnesium products and crystal whisker of gypsum obtained is shown in Table 1 in embodiment 1 to 14.
Table 1
It can be seen from the above description that the above embodiments of the present invention realized the following chievements: passing through this Shen
The recovery method that please be provide, the calcium constituent being not only able in recycling Adlerika, and it is translated into the higher stone of draw ratio
Cream whisker；Magnesium elements therein can also be recycled, and are translated into basic magnesium carbonate.Said two products all have higher
Purity improves the economic benefit of magnesium sulfate waste water.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of method for recycling magnesium elements and calcium constituent from Adlerika, which is characterized in that the described method includes:
Adlerika and calcium chloride are subjected to neutralization reaction, magnesium chloride solution and gypsum is obtained, is wrapped in the Adlerika
Calcium ions；
So that the magnesium chloride solution and calcium hydroxide is carried out metathesis reaction, obtains calcium chloride solution and magnesium hydroxide crude product；
The magnesium hydroxide crude product and carbon dioxide are subjected to carburizing reagent, obtain magnesium bicarbonate solution；And
The magnesium bicarbonate solution carries out pyrolysis, obtains basic magnesium carbonate；
The step of mixture of the gypsum and additive is heated in autoclave, obtains crystal whisker of gypsum, the addition
Agent includes dispersing agent；The temperature of the heating process is 50~150 DEG C, magnesium sulfate described in the neutralization reaction and the chlorination
The ratio between molal quantity of calcium is 1:1；The calcium hydroxide is provided by milk of lime, and the solid content of the milk of lime is 10wt%；It is described
In metathesis reaction, the ratio between molal quantity of magnesium chloride and the calcium hydroxide in the magnesium chloride solution is 1:1.05, described
The temperature of carburizing reagent is 25 DEG C, and the temperature of the thermal decomposition is 80 DEG C.
2. method according to claim 1, which is characterized in that the neutralization reaction includes:
It mixes the calcium chloride with water, obtains saturation calcium chloride solution；And
The saturation calcium chloride solution and the Adlerika are subjected to the neutralization reaction, obtain the magnesium chloride solution and
The gypsum.
3. method according to claim 1 or 2, which is characterized in that the dispersing agent is selected from neopelex, ten
One of group of sodium dialkyl sulfate, Tween-80, sodium phosphate, ethyl alcohol and polyethylene glycol composition is a variety of.
4. according to the method described in claim 3, it is characterized in that, the additive further includes flocculant.
5. according to the method described in claim 4, it is characterized in that, the flocculant is polyacrylamide.
6. method according to claim 1 or 2, which is characterized in that the carburizing reagent and the pyrolysis it
Between, the method also includes:
The calcium ion in the magnesium bicarbonate solution is removed with calcium remover, obtains intermediate product；And
The intermediate product is subjected to the pyrolysis, obtains the basic magnesium carbonate.
7. according to the method described in claim 6, it is characterized in that, the calcium remover is selected from sodium hydroxide, potassium hydroxide and ammonia
One of group of water composition is a variety of.
8. according to the method described in claim 6, it is characterized in that, calcium ion in the magnesium bicarbonate solution and the deliming
The ratio between molal quantity of agent is 1:1~5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710517357.0A CN107364879B (en) | 2017-06-29 | 2017-06-29 | The method of magnesium elements and calcium constituent is recycled from Adlerika |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710517357.0A CN107364879B (en) | 2017-06-29 | 2017-06-29 | The method of magnesium elements and calcium constituent is recycled from Adlerika |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107364879A CN107364879A (en) | 2017-11-21 |
| CN107364879B true CN107364879B (en) | 2019-11-15 |
Family
ID=60305866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710517357.0A Active CN107364879B (en) | 2017-06-29 | 2017-06-29 | The method of magnesium elements and calcium constituent is recycled from Adlerika |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107364879B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980781A (en) * | 2019-12-12 | 2020-04-10 | 山东省药学科学院 | Method for preparing high-purity magnesium sulfate |
| CN111732115B (en) * | 2020-07-07 | 2021-06-01 | 辽宁镁誉新材料股份有限公司 | Preparation method and application of metallurgical precipitation grade magnesium oxide |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104521A (en) * | 2007-06-05 | 2008-01-16 | 昆明贵金属研究所 | Method for treating magnesium sulfate waste liquid and coproducing active magnesium chloride |
| CN101125670A (en) * | 2007-09-04 | 2008-02-20 | 中盐制盐工程技术研究院 | Method for producing light magnesium carbonate |
| CN101172627A (en) * | 2007-10-11 | 2008-05-07 | 河北科技大学 | Method of producing magnesium hydroxide |
| CN101880772A (en) * | 2010-06-07 | 2010-11-10 | 中国恩菲工程技术有限公司 | Method for recycling magnesium from magnesium-containing waste solution |
| CN103950957A (en) * | 2014-04-22 | 2014-07-30 | 彭振超 | Process method for preparing magnesium hydroxide from magnesium sulfate |
| CN104480523A (en) * | 2014-12-10 | 2015-04-01 | 清华大学 | Improved method for preparing superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers by using hydrothermal process |
| CN105350066A (en) * | 2015-12-15 | 2016-02-24 | 云南省化工研究院 | Method for preparing calcium sulfate hemihydrate crystal whisker by ardealite |
-
2017
- 2017-06-29 CN CN201710517357.0A patent/CN107364879B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104521A (en) * | 2007-06-05 | 2008-01-16 | 昆明贵金属研究所 | Method for treating magnesium sulfate waste liquid and coproducing active magnesium chloride |
| CN101125670A (en) * | 2007-09-04 | 2008-02-20 | 中盐制盐工程技术研究院 | Method for producing light magnesium carbonate |
| CN101172627A (en) * | 2007-10-11 | 2008-05-07 | 河北科技大学 | Method of producing magnesium hydroxide |
| CN101880772A (en) * | 2010-06-07 | 2010-11-10 | 中国恩菲工程技术有限公司 | Method for recycling magnesium from magnesium-containing waste solution |
| CN103950957A (en) * | 2014-04-22 | 2014-07-30 | 彭振超 | Process method for preparing magnesium hydroxide from magnesium sulfate |
| CN104480523A (en) * | 2014-12-10 | 2015-04-01 | 清华大学 | Improved method for preparing superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers by using hydrothermal process |
| CN105350066A (en) * | 2015-12-15 | 2016-02-24 | 云南省化工研究院 | Method for preparing calcium sulfate hemihydrate crystal whisker by ardealite |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107364879A (en) | 2017-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101041450B (en) | Clean production technique for preparation of aluminium oxide and white carbon black by using high-alumina coal ash | |
| CN103708508B (en) | A kind of method of producing battery-level lithium carbonate from lithium concentrate | |
| CN104445311B (en) | Clean poly-generation preparation method for flyash with high-content silicon dioxide | |
| CN101235440A (en) | Method of comprehensively utilizing serpentine | |
| CN104495899A (en) | Method for synergic resource utilization of acetylene sludge and coal ash | |
| CN109384254B (en) | Method for preparing crystalline aluminum chloride and white carbon black from fly ash or coal gangue | |
| CN107364879B (en) | The method of magnesium elements and calcium constituent is recycled from Adlerika | |
| CN106145164A (en) | The method preparing lithium carbonate from lepidolite | |
| CN103738972B (en) | A kind of residue of aluminum-extracted pulverized fuel ash prepares the method for silicon powder | |
| US7041268B2 (en) | Process for recovery of sulphate of potash | |
| CN106365189B (en) | A kind of method of comprehensive utilization of white residue soil | |
| CN109911909A (en) | The recovery and treatment method of saggar is discarded in a kind of lithium cobaltate cathode material preparation process | |
| CN103058235A (en) | Method of removing calcium with magnesium sulfate and high-purity magnesium sulfate | |
| CN111115673A (en) | Method for utilizing all components of caustic sludge | |
| CN102303941A (en) | Deep dealkalizing method of red mud in alumina factory | |
| CN107140660B (en) | A kind of preparation method of potassium carbonate | |
| JP4516023B2 (en) | How to recover potassium sulfate | |
| CN105858676A (en) | Production method for coproducing sodium silicate and sodium fluoride | |
| CN103112875B (en) | Process for preparing agricultural potassium nitrate by utilizing potassium-enriched rock | |
| CN104609445A (en) | Method for recovering high-purity sodium sulfite from wastewater generated by naphthol preparation | |
| CN102732727A (en) | Method for extracting vanadium from high vanadium-sodium-aluminum-silicon slag | |
| CN101920967A (en) | Method for extracting silicon dioxide from flyash | |
| CN107337216A (en) | A kind of method that potassium feldspar hydro-thermal alkaline process prepares potassium hydroxide | |
| CN105271290A (en) | Method for preparing analcite through high-alumina fly ash | |
| CN102583479B (en) | Method for preparing industrial aluminum sulfate by using aluminum-silicon filter cakes left by extracting potassium from potassium feldspar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |