CN109518012A - A method of using clay mineral separation and concentration rare earth ion - Google Patents
A method of using clay mineral separation and concentration rare earth ion Download PDFInfo
- Publication number
- CN109518012A CN109518012A CN201910044525.8A CN201910044525A CN109518012A CN 109518012 A CN109518012 A CN 109518012A CN 201910044525 A CN201910044525 A CN 201910044525A CN 109518012 A CN109518012 A CN 109518012A
- Authority
- CN
- China
- Prior art keywords
- rare earth
- clay mineral
- earth ion
- separation
- temperature
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
-
- 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 kind of methods using clay mineral separation and concentration rare earth ion, belong to rare earth resources separation technology field, including preparing clay mineral carrier, adsorb rare earth element, it is separated by solid-liquid separation, the sintering of clay mineral filter residue, rare earths separation, rare earth ion separation and rare earth ion precipitating and etc., the clay mineral carrier includes the humic acid of 1~3 part of mass fraction, the compound amino acid of 0.2~0.6 part of mass fraction and the clay mineral of 8~10 parts of mass fractions, three's mixing freezes 1~2 hour under the conditions of being placed on -5 DEG C~-2 DEG C of temperature, then it is dried under the conditions of 60 DEG C of temperature；After absorption carrier adsorbs rare earth element, successively the absorption carrier for being adsorbed with rare earth element is handled with strong base solution twice.The present invention has the ability efficiently adsorbed to rare earth element, and can completely separate the rare earth ion of absorption, can avoid the waste of rare earth resources.
Description
Technical field
The present invention relates to rare earth resources separation technology fields, are specifically related to a kind of using clay mineral separation and concentration rare earth
The method of ion.
Background technique
Rare earth is exactly lanthanide series in the periodic table of chemical element --- lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium
(Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), with
And closely related element-yttrium (Y) and scandium (Sc) totally 17 kinds of elements, referred to as rare earth element with 15 elements of group of the lanthanides.Rare earth tool
There is important application value, such as in agricultural production process, rare earth can be used as micro- fertilizer, have compound physiology to imitate plant growth
It answers, enhances enzymatic activity, accelerate crop to the absorption efficiency of nutriment, promote Chlorophyll synthesis, improve crop photosynthesis
Utilization rate boosts metabolism, substance conversion, significantly improves the yield and quality of crop.
Clay mineral refers to the hydrous alumino silicates mineral with bedded structure, is the main mine for constituting claystone, soil
Object component, such as kaolinite, montmorillonite, illite.Clay mineral has the performance of the adion from surrounding medium, this aspect
The property of clayey rock is influenced, on the other hand will form valuable mineral deposit after absorbing certain useful element, for development
New and high technology plays very important effect.Carrying out adsorbing separation to rare earth ion using clay mineral is a kind of preferable acquisition
The method of rare earth, but key issues of extraction efficiency is not high, environment influence is universal is still had in its development process.In recent years
Come, a large amount of research is only directed to optimization rare earth ion acid hemolysis process to improve the enrichment of rare earth in clay, although clay
In rare earth obtain certain enrichment, but have many rare earths because mineral reaction not exclusively due to lose, cause rare earth resources
Waste.The adsorption separating method used at present to rare earth element includes: 1) to carry out absorption point to rare earth ion using clay mineral
From；2) adsorbing separation is carried out to rare earth ion using humic acid+clay mineral；Although above two mode is able to achieve to rare earth member
The absorption of element, but still remain the problem that leaching rate is lower and the processing of process reagent is inconvenient.Therefore it needs to design a kind of new
Technical solution, solve problems of the prior art with comprehensive.
Summary of the invention
1. technical problems to be solved
The technical problem to be solved in the present invention is that a kind of method using clay mineral separation and concentration rare earth ion is provided,
It has the ability efficiently adsorbed to rare earth element, and can completely separate the rare earth ion of absorption, can avoid
The waste of rare earth resources.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that:
A method of using clay mineral separation and concentration rare earth ion, include the following steps:
S1. prepare clay mineral carrier: take the humic acid of 1~3 part of mass fraction, 0.2~0.6 part of mass fraction it is compound
The clay mineral of amino acid and 8~10 parts of mass fractions, is eluted to eluate with deionized water be in neutrality after mixing, then
It is placed under the conditions of -5 DEG C~-2 DEG C of temperature after freezing 1~2 hour, is then dried under the conditions of 60 DEG C of temperature, obtain clay
Mineral intermixture；Clay mineral mixture is placed in container, be added distilled water to be higher than clay mineral mixture surface 0.5~
The position of 1cm stands 1~2 day to get clay mineral carrier；
S2. it adsorbs rare earth element: clay mineral carrier obtained in step S1 contact is rich in the medium of rare earth ion, it is quiet
To 2~3 days, rare earth carrier mixture is obtained；
S3. it is separated by solid-liquid separation: rare earth carrier mixture obtained in step S2 being stirred mixing, is filtered later,
Collect clay mineral filter residue；
S4. clay mineral filter residue is sintered: by clay mineral filter residue obtained in step S3 after pulverizer is sufficiently broken
It is sintered, after temperature reaches 800 DEG C~900 DEG C, continues to increase with temperature, eutectic substance starts to melt in clay
Change, liquid phase occurs and gradually increases；
S5. rare earths separation: taking the clay in liquid phase that sintering is completed in step S4, and addition iron chloride is molten thereto
Liquid reacts 6~12 hours；It is then slowly added into strong base solution, is stood after reaction completely, after solution to be mixed separates, point
Liquid iron hydroxide solution and clay mineral precipitating are separated out, collects iron hydroxide solution and clay mineral precipitating respectively；
S6. rare earth ion separate: in step S5 clay mineral precipitating carry out ion isolation, collect rare earth therein from
Son；
S7. rare earth ion precipitates: chloride being added while stirring in the iron hydroxide solution into step S5, is further continued for stirring
The strong base solution of 3mol/L is mixed and is slowly added to, sufficiently 12~24 hours is stood after reaction, finally deposit is collected,
Wherein contain rare earth ion.
Further, humic acid described in step S1 is prepared using following methods: by corn stover, Wheat Straw and peanut
Stalk is crushed respectively, then according to corn stover: Wheat Straw: peanut stalk be 1:1~2:0.5~1.5 mass ratio into
Row mixing, sterilize under the conditions of 85 DEG C of temperature 10~20min later, is collectively disposed in fermentor after sterilizing with leavening,
36~38 DEG C of temperature condition issues ferment 15 days, then is placed in the interior moisture that is dried under the conditions of 60 DEG C of temperature of baking oven and is less than 5%,
Obtain humic acid.Contain the amino acid such as lysine, methionine and cystine in corn stover, it is opposite to contain crude protein in peanut stalk
It is more, amino acid can be introduced, tentatively to promote the advantageous effect of amino acid；What content was most in stalk is crude fibre, advantageous
Form humic acid in stalk fermentation, and crude fibre contained in corn stover and Wheat Straw is relatively more, so corn stover with
The amount of taking of Wheat Straw is more；Stalk is sterilized between fermentation, can avoid the introducing of impurity.It is prepared using stalk
Humic acid not only makes stalk resource be utilized effectively, and can reduce the processing cost of rare earth ion.
Further, clay mineral described in step S1 is montmorillonite and bentonitic mixture, and montmorillonite with it is swollen
The mass ratio of profit soil is 1:1~2；The compound amino acid is plant type amino acid powder.In clay mineral, montmorillonite is to rare earth
Adsorption capacity it is most strong, bentonite takes second place, and bentonite is due to the particularity of its lattice structure, to La3+There is better adsorption capacity.
Both of which is highly suitable as clay mineral raw material.
Further, clay mineral filter residue described in step S4 is after broken, and 90% or more fineness reaches≤
0.1mm。
Further, strong base solution described in step S5 neutralization procedure S7 is potassium hydroxide, calcium hydroxide, hydroxide
Any one in barium, and the molar concentration of strong base solution described in step S5 is 17~19mol/L.
Further, chloride described in step S6 be copper chloride, it is magnesium chloride, aluminium chloride, any one in silver chlorate
Kind, the mass ratio of chloride described in step S7 and highly basic is 1:3~6.
3. beneficial effect
(1) humic acid, compound amino acid and clay mineral are mixed and are used as absorption carrier, humic acid and clay mine by the present invention
Object is all the known substance that can preferably adsorb rare earth element, and the addition of amino acid can promote adsorbing medium to rare earth element
Adsorption capacity, to be conducive to promote the accumulation ability to rare earth element；And compound amino acid has certain adhesive force,
Prevent feed nutrition lost and enhancing pellet sizing, then compound amino acid is added to humic acid and clay mineral
In, it can promote the mixing of raw material, and reduce waste of the raw material in lessivation.
(2) the raw material mixing elution of absorption carrier is placed under the conditions of -5 DEG C~-2 DEG C of temperature and freezes 1~2 by the present invention
Hour, it is then dried under the conditions of 60 DEG C of temperature, the gap in mixture can be made to increase, it is higher to be allowed to fluffy degree, plays one
The effect of fixed increase material table area can be promoted to can provide more for the region of rare earth ion attachment to rare earth
The accumulation ability of element.
(3) present invention is first handled the absorption carrier for being adsorbed with rare earth element with dense strong base solution, isolates solution
It is precipitated with clay mineral, clay mineral is precipitated and carries out ion isolation；Solution after dividing filter is handled with strong base solution again,
Then sediment is collected, is the hydroxide containing rare earth ion.It realizes to the adsorbed rare earth ion of absorption carrier
It is kept completely separate, can avoid the waste of rare earth resources.
To sum up, the present invention has the ability of efficient absorption rare earth element, and can completely separate the rare earth ion of absorption
Out, the waste that can avoid rare earth resources, efficiently solve that leaching rate existing in the prior art is lower and process reagent at
Manage inconvenient problem.
Specific embodiment
Rare-earth ion solution is first prepared, so as to experimental verification:
La2O3, Sc2O3, Y2O3 reagent are weighed respectively, are made into the standard inventory that rare earth element ion concentration is 5mmol/L
Liquid, it is spare.
Embodiment 1
A method of using clay mineral separation and concentration rare earth ion, include the following steps:
S1. prepare clay mineral carrier: take the humic acid of 1 part of mass fraction, 0.6 part of mass fraction compound amino acid with
And the clay mineral of 8 parts of mass fractions, it is eluted with deionized water to eluate be in neutrality after mixing, then be placed in -2 DEG C of temperature
After being freezed 2 hours under the conditions of degree, is then dried under the conditions of 60 DEG C of temperature, obtain clay mineral mixture；By clay mineral
Mixture is placed in container, and distilled water is added to the position for being higher than clay mineral mixture surface 0.5cm, stands 2 days to get glutinous
Native mineral carrier；
S2. adsorb rare earth element: taking the standard reserving solution of five equal portions and be diluted to 0.2 respectively, 0.4,0.6,0.8,
Then clay mineral carrier obtained in step S1 is divided into five parts, and is separately added into aforementioned by the solution of 1.0mmol/L concentration
The solution of five kinds of various concentrations waits for quietly 2 days, obtains rare earth carrier mixture；
S3. it is separated by solid-liquid separation: rare earth carrier mixture obtained in step S2 being stirred mixing, is filtered later,
Clay mineral filter residue and filtrate are collected respectively；
S4. clay mineral filter residue is sintered: by clay mineral filter residue obtained in step S3 after pulverizer is sufficiently broken
It is sintered, after temperature reaches 800 DEG C, continues to increase with temperature, eutectic substance starts to melt in clay, and liquid phase goes out
Now and gradually increase；
S5. rare earths separation: taking the clay in liquid phase that sintering is completed in step S4, and addition iron chloride is molten thereto
Liquid reacts 6 hours；It is then slowly added into strong base solution, stands after reaction, after solution to be mixed separates, isolates completely
Liquid iron hydroxide solution and clay mineral precipitating, collect iron hydroxide solution and clay mineral precipitating respectively；
S6. rare earth ion separate: in step S5 clay mineral precipitating carry out ion isolation, collect rare earth therein from
Son；
S7. rare earth ion precipitates: chloride being added while stirring in the iron hydroxide solution into step S5, is further continued for stirring
The strong base solution of 3mol/L is mixed and be slowly added to, sufficiently 24 hours is stood after reaction, finally deposit is collected, wherein
Contain rare earth ion.
In the present embodiment, humic acid described in step S1 using following methods prepare: by corn stover, Wheat Straw and
Peanut stalk is crushed respectively, then according to corn stover: Wheat Straw: peanut stalk is that the mass ratio of 1:1:1.5 is mixed
It closes, sterilize under the conditions of 85 DEG C of temperature 10min later, is collectively disposed in fermentor after sterilizing with leavening, in 36 DEG C of temperature
It ferments 15 days under the conditions of degree, then is placed in the interior moisture that is dried under the conditions of 60 DEG C of temperature of baking oven and is less than 5% to get humic is arrived
Acid.It is relatively more containing crude protein in peanut stalk containing the amino acid such as lysine, methionine and cystine in corn stover, it can be first
Step introduces amino acid, to promote the advantageous effect of amino acid；What content was most in stalk is crude fibre, is conducive to stalk fermentation
Humic acid is formed, and crude fibre contained in corn stover and Wheat Straw is relatively more, so corn stover and Wheat Straw take
Dosage is more；Stalk is sterilized between fermentation, can avoid the introducing of impurity.Humic acid is prepared using stalk, no
Only stalk resource is made to be utilized effectively, and can reduce the processing cost of rare earth ion.
In the present embodiment, clay mineral described in step S1 is montmorillonite and bentonitic mixture, and montmorillonite
It is 1:1 with bentonitic mass ratio；The compound amino acid is plant type amino acid powder.In clay mineral, montmorillonite is to dilute
The adsorption capacity of soil is most strong, and bentonite takes second place, and bentonite is due to the particularity of its lattice structure, to La3+There is better absorption
Power.Both of which is highly suitable as clay mineral raw material.
In the present embodiment, clay mineral filter residue described in step S4 is after broken, and 94% fineness reaches≤
0.1mm。
In the present embodiment, strong base solution described in step S5 neutralization procedure S7 is potassium hydroxide, and in step S5
The molar concentration of the strong base solution is 19mol/L；Through detecting, the mass ratio of rare earth and strong base solution used is 1:3.
In the present embodiment, chloride described in step S6 is magnesium chloride, chloride described in step S7 and highly basic
Mass ratio is 1:4.
Using inductive coupling plasma emission spectrograph (ICP) in step S3 gained filtrate carry out content of rare earth into
Row measurement, it is found that the rare earth ion content in five parts of filtered fluids is distinguished compared with the content of rare earth ion in initial earth solution
Reduce 98.7%, 98.9%, 99.0%, 99.1%, 98.8%, average value 98.9%, then the absorption in the present embodiment
Carrier can adsorb in initial rare earth medium 98.9% rare earth element, i.e., by humic acid, meet amino acid and clay mineral mixes
Absorption carrier made of conjunction has the ability efficiently adsorbed to rare earth element.
Embodiment 2
The present embodiment difference from example 1 is that:
Step S1: the humic acid of 2 parts of mass fractions, the compound amino acid and 9 parts of mass fractions of 0.4 part of mass fraction are taken
Clay mineral, elution is placed under the conditions of -3 DEG C of temperature freeze 1.5 hours after, then dry, obtain clay mineral and mix
Object；Clay mineral mixture is placed in container, addition distilled water is quiet to the position for being higher than clay mineral mixture surface 1cm
1.5 days are set to get clay mineral carrier；
Clay mineral carrier obtained in step S1 contact: being rich in the medium of rare earth ion, waited for quietly 2.5 days by step S2,
Obtain rare earth carrier mixture；
Step S4: in sintering process, after temperature reaches 850 DEG C, continue to increase with temperature, eutectic in clay
Matter starts to melt, and liquid phase occurs and gradually increases；
Step S5: it is reacted 9 hours after ferric chloride solution is added；
Step S7: 18 hours sufficiently are stood after reaction, finally deposit is collected, wherein containing rare earth ion.
In the present embodiment, the mass ratio of corn stover, Wheat Straw and peanut stalk is 1:1.5:1, later at 85 DEG C
The time to sterilize under the conditions of temperature is 15min, and fermentation temperature later is 37 DEG C.
In the present embodiment, montmorillonite and bentonitic mass ratio are 1:1.5.
In the present embodiment, clay mineral filter residue described in step S4 is after broken, and 92% fineness reaches≤
0.1mm。
In the present embodiment, strong base solution described in step S5 neutralization procedure S7 is respectively potassium hydroxide and hydroxide
Barium, and the molar concentration of strong base solution described in step S5 is 18mol/L.
In the present embodiment, chloride described in step S6 is aluminium chloride, chloride described in step S7 and highly basic
Mass ratio is 1:6.
Other are the same as embodiment 1.
Using inductive coupling plasma emission spectrograph (ICP) in step S3 gained filtrate carry out content of rare earth into
Row measurement, it is found that the rare earth ion content in five parts of filtered fluids is distinguished compared with the content of rare earth ion in initial earth solution
Reduce 98.9%, 98.9%, 99.0%, 98.9%, 98.8%, average value 98.9%, then the absorption in the present embodiment
Carrier can adsorb in initial rare earth medium 98.9% rare earth element, i.e., by humic acid, meet amino acid and clay mineral mixes
Absorption carrier made of conjunction has the ability efficiently adsorbed to rare earth element.
Embodiment 3
The present embodiment difference from example 1 is that:
Step S1: the humic acid of 3 parts of mass fractions, the compound amino acid and 10 parts of mass parts of 0.2 part of mass fraction are taken
Several clay minerals is eluted after freezing 1 hour under the conditions of being placed on -5 DEG C of temperature, is then dried, and obtains clay mineral mixing
Object；Clay mineral mixture is placed in container, addition distilled water is quiet to the position for being higher than clay mineral mixture surface 1cm
1 day is set to get clay mineral carrier；
Step S2: clay mineral carrier obtained in step S1 contact is rich in the medium of rare earth ion, waits for quietly 3 days, obtains
To rare earth carrier mixture；
Step S4: in sintering process, after temperature reaches 900 DEG C, continue to increase with temperature, eutectic in clay
Matter starts to melt, and liquid phase occurs and gradually increases；
Step S5: it is reacted 12 hours after ferric chloride solution is added；
Step S7: 12 hours sufficiently are stood after reaction, finally deposit is collected, wherein containing rare earth ion.
In the present embodiment, the mass ratio of corn stover, Wheat Straw and peanut stalk is 1:2:0.5, later at 85 DEG C
The time to sterilize under the conditions of temperature is 20min, and fermentation temperature later is 38 DEG C.
In the present embodiment, montmorillonite and bentonitic mass ratio are 1:2.
In the present embodiment, clay mineral filter residue described in step S4 is after broken, and 93% fineness reaches≤
0.1mm。
In the present embodiment, strong base solution described in step S5 neutralization procedure S7 is calcium hydroxide, and in step S5
The molar concentration of the strong base solution is 17mol/L.
In the present embodiment, chloride described in step S6 is copper chloride, chloride described in step S7 and highly basic
Mass ratio is 1:3.
Other are the same as embodiment 1.
Using inductive coupling plasma emission spectrograph (ICP) in step S3 gained filtrate carry out content of rare earth into
Row measurement, it is found that the rare earth ion content in five parts of filtered fluids is distinguished compared with the content of rare earth ion in initial earth solution
Reduce 98.8%, 98.9%, 99.0%, 99.0%, 98.8%, average value 98.9%, then the absorption in the present embodiment
Carrier can adsorb in initial rare earth medium 98.9% rare earth element, i.e., by humic acid, meet amino acid and clay mineral mixes
Absorption carrier made of conjunction has the ability efficiently adsorbed to rare earth element.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen in scope of the presently claimed invention.
Claims (6)
1. a kind of method using clay mineral separation and concentration rare earth ion, which comprises the steps of:
S1. it prepares clay mineral carrier: taking the humic acid of 1~3 part of mass fraction, the compounded amino of 0.2~0.6 part of mass fraction
The clay mineral of acid and 8~10 parts of mass fractions, is eluted to eluate with deionized water be in neutrality after mixing, then set
After being freezed 1~2 hour under the conditions of -5 DEG C~-2 DEG C of temperature, is then dried under the conditions of 60 DEG C of temperature, obtain clay mine
Object mixture；Clay mineral mixture is placed in container, be added distilled water to be higher than clay mineral mixture surface 0.5~
The position of 1cm stands 1~2 day to get clay mineral carrier；
S2. it adsorbs rare earth element: clay mineral carrier obtained in step S1 contact being rich in the medium of rare earth ion, waits for 2 quietly
~3 days, obtain rare earth carrier mixture；
S3. it is separated by solid-liquid separation: rare earth carrier mixture obtained in step S2 being stirred mixing, is filtered later, collect
Clay mineral filter residue；
S4. clay mineral filter residue is sintered: clay mineral filter residue obtained in step S3 is carried out after pulverizer is sufficiently broken
Sintering, after temperature reaches 800 DEG C~900 DEG C, continues to increase, eutectic substance starts to melt in clay, liquid with temperature
Mutually occur and gradually increases；
S5. rare earths separation: the clay in liquid phase that sintering is completed in step S4 is taken, ferric chloride solution is added thereto, instead
It answers 6~12 hours；It is then slowly added into strong base solution, is stood after reaction completely, after solution to be mixed separates, isolates liquid
State iron hydroxide solution and clay mineral precipitating, collect iron hydroxide solution and clay mineral precipitating respectively；
S6. rare earth ion separates: carrying out ion isolation to the clay mineral precipitating in step S5, collects rare earth ion therein；
S7. rare earth ion precipitates: chloride being added while stirring in the iron hydroxide solution into step S5, is further continued for stirring simultaneously
It is slowly added to the strong base solution of 3mol/L, sufficiently 12~24 hours is stood after reaction, finally deposit is collected, wherein
Contain rare earth ion.
2. a kind of method using clay mineral separation and concentration rare earth ion according to claim 1, which is characterized in that step
Humic acid described in rapid S1 is prepared using following methods: corn stover, Wheat Straw and peanut stalk being crushed respectively, so
Afterwards according to corn stover: Wheat Straw: peanut stalk is that the mass ratio of 1:1~2:0.5~1.5 is mixed, later at 85 DEG C
Sterilize 10~20min under the conditions of temperature, is collectively disposed in fermentor after sterilizing with leavening, under the conditions of 36~38 DEG C of temperature
Fermentation 15 days, then be placed in the interior moisture that is dried under the conditions of 60 DEG C of temperature of baking oven and be less than 5% to get humic acid is arrived.
3. a kind of method using clay mineral separation and concentration rare earth ion according to claim 1, which is characterized in that step
Clay mineral described in rapid S1 is montmorillonite and bentonitic mixture, and montmorillonite and bentonitic mass ratio be 1:1~
2；The compound amino acid is plant type amino acid powder.
4. a kind of method using clay mineral separation and concentration rare earth ion according to claim 1, which is characterized in that step
For clay mineral filter residue described in rapid S4 after broken, 90% or more fineness reaches≤0.1mm.
5. a kind of method using clay mineral separation and concentration rare earth ion according to claim 1, which is characterized in that step
Strong base solution described in rapid S5 neutralization procedure S7 is potassium hydroxide, calcium hydroxide, any one in barium hydroxide, and is walked
The molar concentration of strong base solution described in rapid S5 is 17~19mol/L.
6. a kind of method using clay mineral separation and concentration rare earth ion according to claim 1, which is characterized in that step
Chloride described in rapid S7 is copper chloride, magnesium chloride, aluminium chloride, any one in silver chlorate, chlorination described in step S7
The mass ratio of object and highly basic is 1:3~6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044525.8A CN109518012A (en) | 2019-01-17 | 2019-01-17 | A method of using clay mineral separation and concentration rare earth ion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044525.8A CN109518012A (en) | 2019-01-17 | 2019-01-17 | A method of using clay mineral separation and concentration rare earth ion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109518012A true CN109518012A (en) | 2019-03-26 |
Family
ID=65799187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910044525.8A Pending CN109518012A (en) | 2019-01-17 | 2019-01-17 | A method of using clay mineral separation and concentration rare earth ion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109518012A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804703A (en) * | 2019-11-20 | 2020-02-18 | 江西理工大学 | Method for enriching ionic rare earth with extremely low concentration by adopting humic acid precipitation |
| CN114703365A (en) * | 2022-03-31 | 2022-07-05 | 武汉工程大学 | Composite leaching agent for weathering crust leaching type rare earth ore |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817439A (en) * | 2006-01-17 | 2006-08-16 | 昆明理工大学 | Rare earth adsorbent and production thereof |
| CN101255496A (en) * | 2008-03-18 | 2008-09-03 | 中国高岭土公司 | Method for synchronously reclaiming porcelain clay and rear earth from ionic adsorption type rear earth ore |
| CN103449568A (en) * | 2013-09-05 | 2013-12-18 | 南昌大学 | Method for treating wastewater with extremely low rare earth concentration by using coarse-grained clay in ionic rare-earth tailings |
| CN103466738A (en) * | 2013-08-15 | 2013-12-25 | 南昌大学 | Method for removing ammonia nitrogen and recovering rare earth from low-concentration solution containing ammonium and rare earth |
-
2019
- 2019-01-17 CN CN201910044525.8A patent/CN109518012A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817439A (en) * | 2006-01-17 | 2006-08-16 | 昆明理工大学 | Rare earth adsorbent and production thereof |
| CN101255496A (en) * | 2008-03-18 | 2008-09-03 | 中国高岭土公司 | Method for synchronously reclaiming porcelain clay and rear earth from ionic adsorption type rear earth ore |
| CN103466738A (en) * | 2013-08-15 | 2013-12-25 | 南昌大学 | Method for removing ammonia nitrogen and recovering rare earth from low-concentration solution containing ammonium and rare earth |
| CN103449568A (en) * | 2013-09-05 | 2013-12-18 | 南昌大学 | Method for treating wastewater with extremely low rare earth concentration by using coarse-grained clay in ionic rare-earth tailings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804703A (en) * | 2019-11-20 | 2020-02-18 | 江西理工大学 | Method for enriching ionic rare earth with extremely low concentration by adopting humic acid precipitation |
| CN114703365A (en) * | 2022-03-31 | 2022-07-05 | 武汉工程大学 | Composite leaching agent for weathering crust leaching type rare earth ore |
| CN114703365B (en) * | 2022-03-31 | 2024-03-26 | 武汉工程大学 | Composite leaching agent for weathered crust leaching rare earth ore |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101462909B (en) | Preparation of avermectin slag fertilizer | |
| CN102173904B (en) | Method for producing compound mixed fertilizer by utilizing solid isolate from phosphorite decomposed with nitric acid | |
| CN108239536A (en) | A kind of soil conditioner and preparation method thereof | |
| CN109518012A (en) | A method of using clay mineral separation and concentration rare earth ion | |
| CN103406099A (en) | Calcium-magnesium mineralized biocarbon, and preparation method and application thereof | |
| CN109292881A (en) | A kind of carbon-based desulfurized gypsum dephosphorization stick of biomass and its preparation, application method | |
| CN113318724B (en) | Preparation method of cow dung biogas residue carbon and application of cow dung biogas residue carbon in persulfate activation system | |
| CN101781147B (en) | Process for preparing potassium molecular sieve based slow-release fertilizer carrier from potassium feldspar powder | |
| CN102320586B (en) | Synthesizing method of amorphous calcium phosphate | |
| CN103242078A (en) | Method for preparing biological compound fertilizer from low-grade rare earth ore through microbial decomposition | |
| CN113234445A (en) | Regulating agent suitable for alkaline soil heavy metal cadmium pollution remediation, preparation method and application | |
| CN103601896B (en) | A kind of compound extractant and from sewage sludge the method for Extraction and isolation soil ulmin | |
| CN85104430A (en) | Handle the method and the mixture that can keep nitrogen in the soil of soil | |
| CN108409407A (en) | It is a kind of from cultivation field waste in recycle phosphorus method and phosphate fertilizer | |
| CN105217910B (en) | A kind of recycling handles method for dirty mire | |
| CN113820187A (en) | Passivation experiment method for applying attapulgite-rice straw composite material to heavy metal contaminated soil | |
| CN105906408A (en) | Disease and pest resistant watermelon organic fertilizer and making method thereof | |
| CN115814750B (en) | Method for preparing porous calcium silicate adsorbent from phosphogypsum | |
| CN106350077B (en) | A kind of preparation method of the charcoal based modifier for reducing rice grain Cd uptake | |
| CN112851440A (en) | Preparation method of environment-friendly organic-inorganic compound fertilizer | |
| CN1209323C (en) | Process for preparing K fertilizer (K salt) from K-enriched rock and lime by hydrothermal method | |
| CN102267817B (en) | Method for producing silicon-potassium-calcium microporous mineral fertilizer | |
| CN101214382A (en) | Method for preparing europium-labeled hydroxyapatite nano particle | |
| CN1884215A (en) | Method for activating treatment of tourmaline and high activity tourmaline boric fertilizer made thereby | |
| CN111115599B (en) | Preparation method of ionic liquid induced hydroxyapatite multistage nanorod |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190326 |