CN107879370A - The preparation method of oil-free carbonated rare earth - Google Patents
The preparation method of oil-free carbonated rare earth Download PDFInfo
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- CN107879370A CN107879370A CN201711027536.2A CN201711027536A CN107879370A CN 107879370 A CN107879370 A CN 107879370A CN 201711027536 A CN201711027536 A CN 201711027536A CN 107879370 A CN107879370 A CN 107879370A
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- oil
- rare earth
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- feed liquid
- carbonate
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- 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
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/247—Carbonates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Abstract
The invention discloses a kind of preparation method of oil-free carbonated rare earth, including：Rare earth feed liquid obtained by extract and separate and precipitating reagent are gone into oil processing；The rare earth feed liquid of oil-free and precipitant solution are mixed and precipitated；Oil-free rare earth carbonate is obtained after solid rare earth carbonate is washed, filtered.The present invention solves oil removing material and can not reused, the expendable problem of extractant.
Description
Technical field
The present invention relates to a kind of preparation method of rare earth material, specifically, is related to a kind of preparation side of oil-free carbonated rare earth
Method.
Background technology
Because rare earth element has a series of special performances, therefore it is widely used in metallurgical machinery, petrochemical industry, glass
The every field of the national economy such as glass ceramics, atomic energy, functional material and weaving, medicine, agricultural, aquaculture.With the modern times
The development of science and technology, rare earth turn into indispensable material in high-tech, New function Materials.
In rare-earth industry production, rare earth carbonate is the intermediate raw material for preparing a variety of rare-earth products, and its purposes is very wide
It is general, so occupying extremely important status.At present, international market is to the physical and chemical performance of rare earth carbonate product, as purity,
Non-rare earth impurity content, granularity, solubility in acid etc. are proposed very high requirement.Rare earth carbonate is more using obtained by extract and separate
Single or mixed chlorinated rare earth feed liquid, sulfuric acid rare earth feed liquid or nitric rare earth feed liquid add the method for ammonium bicarbonate precipitation to prepare.By
Can be with a small amount of extractant, diluent after extract and separate in the liquid containing rare earth, i.e., grease enters in feed liquid, and precipitating reagent
Also a small amount of grease can be contained in ammonium hydrogen carbonate, certain oily pollutant can be also contained in the product for causing to be settled out.With
This oil-containing rare earth intermediate products go to produce quality and performance of other rare-earth products by product is reduced again as raw material.
Chinese publication number CN101880053A discloses the preparation method of oil-free rare earth carbonate, by rare earth raw material liquid and sinks
Shallow lake agent by the filtering ponds oil removing equipped with sorbing material, then through precipitating, rinsing, centrifugal dehydration, prepares oil-free rare earth carbon respectively
Hydrochlorate.Though the method can be made oil-free carbonated rare earth, the adsorbent adsorption capacity used is limited, and suction is drained the oil poorly reversible or again
Multiple usability is poor, and not recyclable extractant, and cost is higher, causes the waste of resource.
The content of the invention
Technical problem solved by the invention is to provide a kind of preparation method of oil-free carbonated rare earth, solves oil removing material
It can not reuse, the expendable problem of extractant.
Technical scheme is as follows：
A kind of preparation method of oil-free carbonated rare earth, including：
Rare earth feed liquid obtained by extract and separate and precipitating reagent are gone into oil processing；
The rare earth feed liquid of oil-free and precipitant solution are mixed and precipitated；
Oil-free rare earth carbonate is obtained after solid rare earth carbonate is washed, filtered.
Further：Rare earth feed liquid includes rare earth chloride liquid, nitric rare earth feed liquid or sulfuric acid rare earth feed liquid；Precipitating reagent is selected
One kind in ammonium hydrogen carbonate, sodium carbonate or sodium acid carbonate.
Further：Single or mixing rare earth feed liquid is gone into oil processing by three-level coalescent oil-water separator, three-level is gathered
Knot oil water separator includes three coalescent oil-water separator splits being sequentially connected in series, and upper level coalescent oil-water separator split goes out
Material mouth is connected with the charging aperture of next stage coalescent oil-water separator split by pipeline；Precipitating reagent is done by fiber ball filter
Go oil processing.
Further：The flow velocity of single or mixing rare earth feed liquid is 100L/h~200L/h；By precipitating reagent plus deionized water
The solution that concentration is 5%~15% is dissolved into, the flow velocity that solution passes through fiber ball filter is 10L/h~30L/h.
Further：Coalescence material is arranged on inside coalescent oil-water separator split, and coalescence material is selected modified poly ethylene, gathered
Propylene, polyvinyl chloride, polyacrylonitrile, glass fibre or stainless steel fibre；Modified fibrous globule filtering material is arranged on fiber ball filter
Inside, one kind that modified fibrous globule filtering material is selected in improved polypropylene fiber, cotton fiber, polyester fiber, nylon fiber or terylene.
Further：When the total oil content of discharging of coalescent oil-water separator split is more than 5mg/L, with the rare earth feed liquid filtered
Or water backwashes to coalescent oil-water separator split；When the total oil content of water outlet of fiber ball filter is more than 5mg/L, need to use
Water backwashes to fiber ball filter.
Further：Rare earth element in rare earth feed liquid includes：La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、
One or more in Yb, Lu.
Further：The step of also including reclaiming extractant by catchment cup.
Further：During mixed precipitation, the rare earth feed liquid of oil-free is added into reactor, is warming up to 30 DEG C~90 DEG C,
The precipitant solution of oil-free thereto, when question response system pH is 6-7, crystalline precipitation is obtained, crystalline precipitation and mother liquor are existed
The common still aging 0~24h of room temperature, the solid rare earth carbonate that crystalline precipitation is filtered single or mixed.
Further：Solid rare earth carbonate obtains the rare earth carbonate of oil-free after adding deionized water elution, filtering, oil-free
The insoluble matter of rare earth carbonate is less than or equal to 0.2%, and the total oil content of acid solution is less than 2mg/L.
Compared with prior art, the technology of the present invention effect includes：
1st, rare earth raw material liquid and precipitating reagent are passed through coalescent oil-water separator and modified fiber ball filter by the present invention respectively
Oil removing, then through precipitating, being aged, washing, filtering, obtain oil-free rare earth carbonate product.
This oil-free rare earth carbonate product solubility in acid is good, and insoluble matter is less than or equal to 0.2%, the total oil content of acid solution
(use《The measure infrared spectrophotometer of HJ 637-2012 water-quality petroleums and animals and plants oils》Detection) it is less than 2mg/L.
2nd, the present invention solves oil removing material and can not reused, the expendable problem of extractant.What the present invention used
It is reusable after coalescence material and the backwash of modified fibre ball warp, and recyclable extractant, cost is low, and resource utilization is high,
Suitable for the large-scale production of oil-free carbonated rare earth.
Brief description of the drawings
Fig. 1 is the flow chart of the preparation method of oil-free carbonated rare earth in the present invention；
Fig. 2 is the structural representation of three-level coalescent oil-water separator in the present invention；
Fig. 3 is the structural representation of fiber ball filter in the present invention.
Embodiment
Technical solution of the present invention is elaborated below with reference to example embodiment.However, example embodiment can
Implement in a variety of forms, and be not understood as limited to embodiment set forth herein；On the contrary, these embodiments are provided so that
The design of example embodiment more comprehensively and completely, and is comprehensively communicated to those skilled in the art by the present invention.
As shown in figure 1, it is the flow chart of the preparation method of oil-free carbonated rare earth in the present invention；As shown in Fig. 2 it is the present invention
The structural representation of middle three-level coalescent oil-water separator；As shown in figure 3, it is the structural representation of fiber ball filter in the present invention
Figure.
The preparation method of oil-free carbonated rare earth, specifically includes following steps：
Step 1：Oil processing is carried out to raw material；
Step 11：Rare earth feed liquid obtained by extract and separate is gone into oil processing；
Single or mixing rare earth feed liquid is included by three-level coalescent oil-water separator, rare earth feed liquid：Rare earth chloride material
Liquid, nitric rare earth feed liquid or sulfuric acid rare earth feed liquid, flow control obtain the single of oil-free or mixing in 100L/h~200L/h
Rare earth feed liquid, and extractant is reclaimed by catchment cup 11.Rare earth element in rare earth feed liquid includes：La、Ce、Pr、Nd、Sm、Eu、
One or more in Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu.
Three-level coalescent oil-water separator includes three coalescent oil-water separator splits 1, and coalescent oil-water separator split 1 is being pushed up
Portion is provided with catchment cup 11, and side wall is provided with charging aperture 12, discharging opening 13, sewage draining exit 14 is provided with bottom.Three poly-
Knot oil water separator split 1 is sequentially connected in series, and the discharging opening 13 of upper level coalescent oil-water separator split 1 coalesces profit with next collection
The charging aperture 12 of separator split 1 is connected by pipeline.Coalescence material is arranged on inside coalescent oil-water separator split 1, is gathered
Tie one kind in material selection modified poly ethylene, polypropylene, polyvinyl chloride, polyacrylonitrile, glass fibre or stainless steel fibre.
The operation principle of three-level coalescent oil-water separator：According to relevant theory, solid material has different profits to liquid
Humidity, two-phase embody different angle of wettings in contact surface, when difference of the two-phase in liquid at same moistened surface angle is more than 70
When spending, two-phase can separate.The surface of oleophilic drainage coalescence material, oil droplet are largely attracted, and are able to coarse.According to Stock ＇
S laws, the rate of climb and droplet diameter of the oil droplet in water it is square directly proportional.Coalescent oil-water separator split 1 is i.e. using profit
The principle of wet coalescence makes, and its mechanism is to grow surface aggregation of the oil droplet tiny in water in oleophilic drainage material (coalescence material)
Water surface is risen to so as to realize water-oil separating from material surface separation after big, then oily substance is reclaimed by catchment cup.
Rare earth feed liquid enters the coalescent oil-water separator split 1 of the first order, the single or mixing of oil-free by charging aperture 12
Rare earth feed liquid collected and reclaimed by catchment cup 11 from the discharging opening 13 of the coalescent oil-water separator split 1 of the third level, extractant,
Waste water after filtering is discharged from split sewage draining exit 14.When the total oil content of discharging of coalescent oil-water separator split 1 is more than 5mg/L,
Equipment need to be backwashed with the rare earth feed liquid or water filtered.
Step 12：Precipitating reagent goes oil processing.
Precipitating reagent plus deionized water dissolving are passed through into fiber ball filter, stream into the solution that concentration is 5%~15%, solution
Speed controls the precipitant solution in 10L/h~30L/h, obtaining oil-free.
One kind that precipitating reagent is selected in ammonium hydrogen carbonate, sodium carbonate or sodium acid carbonate.
Fiber ball filter is provided with filter sewage draining exit 21 at top, and water inlet 22 and discharge outlet are provided with side wall
23.Modified fibrous globule filtering material is arranged on inside fiber ball filter, and modified fibrous globule filtering material is fine from improved polypropylene fiber, cotton
One kind in dimension, polyester fiber, nylon fiber or terylene.
The operation principle of fiber ball filter：Modified fibrous globule filtering material in fiber ball filter is a kind of spherical filtrate,
It is to combine ligation by many beam modifying fibrous nodules filaments to form.Modified fiber ball fiber string diameter is thin, and specific surface area is big, passes through suction
Attached, retention effect removes oil and suspended particulate in precipitating reagent.Fibrous nodules have hydrophilic and oleophobic characteristic, backwash after modified
When can preferably will be attached to its surface oil contaminants thoroughly cleaning remove.
Modified fibrous globule filtering material uses new ligature type, sinks to tank bottom than great, during filtering, filtering layer hole during operation
Gap rate tapers into along the direction of current, the up big and down small distribution of pores state of more satisfactory filtrate is formd, so as to intercept
Effect is greatly enhanced, and is more beneficial for the removal of oil and suspension.
The precipitating reagent of deionized water is added to enter from water inlet 22, the precipitant solution of oil-free flows out from discharge outlet 23.Fiber
When the total oil content of ball filter water outlet is more than 5mg/L, reused after backwash regeneration need to be carried out to equipment with water.
Step 2：The rare earth feed liquid of oil-free and precipitant solution are mixed and precipitated；
The rare earth feed liquid of oil-free single or mixing is added into reactor, and is warming up to 30 DEG C~90 DEG C, thereto without
The precipitant solution of oil, when question response system pH be 6-7, the crystalline precipitation that is easily filtered, crystalline precipitation is existed with mother liquor
The common still aging 0~24h of room temperature, the solid rare earth carbonate that crystalline precipitation is filtered single or mixed.
Step 3：Oil-free rare earth carbonate is obtained after solid rare earth carbonate is washed, filtered.
Solid rare earth carbonate obtains single or mixing oil-free rare earth carbonate after adding deionized water elution, filtering.Nothing
The solubility in acid of oily rare earth carbonate is good, and solution is limpid, and insoluble matter is less than or equal to 0.2%, and the total oil content of acid solution (uses
《HJ 637-2012 water quality, the measure of petroleum class and zoology and botany oil class, infrared spectrophotometer》Detection, similarly hereinafter) it is less than 2mg/L.
Embodiment 1
1) Feedstock treating：By lanthanum chloride feed liquid obtained by extract and separate, by three-level coalescent oil-water separator, (coalescence material is
Modified polyvinyl chloride), flow control obtains oil-free lanthanum chloride feed liquid, and reclaim extractant by catchment cup in 100L/h；Again will be heavy
Shallow lake agent ammonium hydrogen carbonate adds deionized water dissolving, and into the solution that concentration is 8%, by fiber ball filter, (fibrous nodules raw material is to be modified
Terylene), flow control obtains oil-free ammonium bicarbonate soln in 15L/h；
2) precipitate：Oil-free lanthanum chloride feed liquid obtained by adding step (1) into reactor is warming up to 30 DEG C, adds nothing thereto
Oily ammonium hydrogen carbonate, when question response system pH is 6.7, the crystalline precipitation that is easily filtered, by crystalline precipitation and mother liquor in room temperature
After common still aging 12h, precipitation is filtered to obtain lanthanum carbonate；
3) wash, filter：The production of oil-free lanthanum carbonate is obtained after lanthanum carbonate obtained by step (2) is added into deionized water elution, filtering
Product.
Oil-free lanthanum carbonate is dissolved with nitric acid, solution is limpid, and insoluble matter is equal to 0.02%, and the total oil content of acid solution is
0.16mg/L。
Embodiment 2
1) Feedstock treating：By cerium chloride feed liquid obtained by extract and separate, by three-level coalescent oil-water separator, (coalescence material is
Modified polyvinyl chloride), flow control obtains oil-free cerium chloride feed liquid, and reclaim extractant by catchment cup in 150L/h；Again will be heavy
Shallow lake agent ammonium hydrogen carbonate adds deionized water dissolving, and into the solution that concentration is 10%, by fiber ball filter, (fibrous nodules raw material is to be modified
Terylene), flow control obtains oil-free ammonium bicarbonate soln in 16L/h；
2) precipitate：Oil-free cerium chloride feed liquid obtained by adding step (1) into reactor is warming up to 50 DEG C, adds nothing thereto
Oily ammonium hydrogen carbonate, when question response system pH is 7.0, the crystalline precipitation that is easily filtered is common in room temperature with mother liquor by precipitating
After still aging 24h, precipitation is filtered to obtain cerous carbonate；
3) wash, filter：The production of oil-free cerous carbonate is obtained after cerous carbonate obtained by step (2) is added into deionized water elution, filtering
Product.
Oil-free cerous carbonate is dissolved with nitric acid, solution is limpid, and insoluble matter is equal to 0.01%, and the total oil content of acid solution is
0.12mg/L。
Embodiment 3
1) Feedstock treating：Praseodymium chloride neodymium feed liquid obtained by extract and separate is passed through into three-level coalescent oil-water separator (coalescence material
For modified polyvinyl chloride), flow control obtains oil-free praseodymium chloride neodymium feed liquid, and reclaim extractant by catchment cup in 200L/h；Again
Precipitating reagent ammonium hydrogen carbonate is added into deionized water dissolving, and into the solution that concentration is 12%, by fiber ball filter, (fibrous nodules raw material is
Modified dacron), flow control obtains oil-free ammonium bicarbonate soln in 20L/h；
2) precipitate：Oil-free praseodymium chloride neodymium feed liquid obtained by adding step (1) into reactor is warming up to 40 DEG C, adds thereto
Oil-free ammonium hydrogen carbonate, when question response system pH is 6.7, the crystalline precipitation that is easily filtered, precipitation is total to mother liquor in room temperature
After still aging 12h, precipitation is filtered to obtain praseodymium carbonate neodymium；
3) wash, filter：Oil-free praseodymium carbonate is obtained after praseodymium carbonate neodymium obtained by step (2) is added into deionized water elution, filtering
Neodymium product.
Oil-free praseodymium carbonate neodymium is dissolved with nitric acid, solution is limpid, and insoluble matter is equal to 0.0016%, and the total oil content of acid solution is
0.14mg/L。
Embodiment 4
1) Feedstock treating：Chlorination sm-eu-gd feed liquid obtained by extract and separate is passed through into three-level coalescent oil-water separator (coalescence material
Expect for modified polyvinyl chloride), flow control obtains oil-free chlorination sm-eu-gd feed liquid in 100L/h, and passes through catchment cup recovery extraction
Agent；Deionized water dissolving is added to pass through fiber ball filter (fibrous nodules into the solution that concentration is 15% in precipitating reagent ammonium hydrogen carbonate again
Raw material is modified dacron), flow control obtains oil-free ammonium bicarbonate soln in 15L/h；
2) precipitate：Oil-free chlorination sm-eu-gd feed liquid obtained by adding step (1) into reactor is warming up to 40 DEG C, adds thereto
Enter oil-free ammonium hydrogen carbonate, when question response system pH is 6.7, the crystalline precipitation that is easily filtered, will precipitation with mother liquor in room temperature
After common still aging 12h, precipitation is filtered to obtain carbonic acid sm-eu-gd；
3) wash, filter：Oil-free carbonic acid is obtained after carbonic acid sm-eu-gd obtained by step (2) is added into deionized water elution, filtering
Sm-eu-gd product.
Oil-free carbonic acid sm-eu-gd is dissolved with nitric acid, solution is limpid, and insoluble matter is equal to 0.02%, and the total oil content of acid solution is
0.16mg/L。
Term used herein is explanation and exemplary and nonrestrictive term.Because the present invention can be with a variety of
Form specific implementation without departing from the spiritual or substantive of invention, it should therefore be appreciated that above-described embodiment be not limited to it is any foregoing
Details, and should widely being explained in the spirit and scope that appended claims are limited, thus fall into claim or its etc.
Whole changes and remodeling in the range of effect all should be appended claims and covered.
Claims (10)
1. a kind of preparation method of oil-free carbonated rare earth, including：
Rare earth feed liquid obtained by extract and separate and precipitating reagent are gone into oil processing；
The rare earth feed liquid of oil-free and precipitant solution are mixed and precipitated；
Oil-free rare earth carbonate is obtained after solid rare earth carbonate is washed, filtered.
2. the preparation method of oil-free carbonated rare earth as claimed in claim 1, it is characterised in that：Rare earth feed liquid includes rare earth chloride material
Liquid, nitric rare earth feed liquid or sulfuric acid rare earth feed liquid；One kind that precipitating reagent is selected in ammonium hydrogen carbonate, sodium carbonate or sodium acid carbonate.
3. the preparation method of oil-free carbonated rare earth as claimed in claim 2, it is characterised in that：By single or mixing rare earth feed liquid
Oil processing is gone by three-level coalescent oil-water separator, three-level coalescent oil-water separator includes three coalescence profits being sequentially connected in series
Separator split, the discharging opening of upper level coalescent oil-water separator split and the charging aperture of next stage coalescent oil-water separator split
It is connected by pipeline；Precipitating reagent goes oil processing by fiber ball filter.
4. the preparation method of oil-free carbonated rare earth as claimed in claim 3, it is characterised in that：Single or mixing rare earth feed liquid
Flow velocity is 100L/h~200L/h；Precipitating reagent plus deionized water dissolving are passed through into fibre into the solution that concentration is 5%~15%, solution
The flow velocity for tieing up ball filter is 10L/h~30L/h.
5. the preparation method of oil-free carbonated rare earth as claimed in claim 3, it is characterised in that：Coalescence material is arranged on coalescence profit
Inside separator split, coalescence material is from modified poly ethylene, polypropylene, polyvinyl chloride, polyacrylonitrile, glass fibre or stainless
Steel fibre；Modified fibrous globule filtering material is arranged on inside fiber ball filter, and modified fibrous globule filtering material is from improved polypropylene fiber, cotton
One kind in fiber, polyester fiber, nylon fiber or terylene.
6. the preparation method of oil-free carbonated rare earth as claimed in claim 3, it is characterised in that：Coalescent oil-water separator split goes out
When expecting that total oil content is more than 5mg/L, coalescent oil-water separator split is backwashed with the rare earth feed liquid or water filtered；It is fine
When the total oil content of water outlet of dimension ball filter is more than 5mg/L, fiber ball filter need to be backwashed with water.
7. the preparation method of oil-free carbonated rare earth as claimed in claim 1, it is characterised in that：Rare earth element bag in rare earth feed liquid
Include：One or more in La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu.
8. the preparation method of oil-free carbonated rare earth as described in any one of claim 1 to 7, it is characterised in that：Also include passing through collection
Lubricating cup reclaims the step of extractant.
9. the preparation method of oil-free carbonated rare earth as claimed in claim 1, it is characterised in that：During mixed precipitation, to reaction
The rare earth feed liquid of oil-free is added in kettle, is warming up to 30 DEG C~90 DEG C, thereto the precipitant solution of oil-free, question response system pH
For 6-7 when, obtain crystalline precipitation, by crystalline precipitation and mother liquor in the common still aging 0~24h of room temperature, crystalline precipitation filtered
Obtain single or mixing solid rare earth carbonate.
10. the preparation method of oil-free carbonated rare earth as claimed in claim 9, it is characterised in that：Solid rare earth carbonate add from
The rare earth carbonate of oil-free is obtained after sub- water wash, filtering, the insoluble matter of the rare earth carbonate of oil-free is less than or equal to 0.2%,
The total oil content of acid solution is less than 2mg/L.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266873A (en) * | 2018-11-13 | 2019-01-25 | 中国北方稀土（集团）高科技股份有限公司 | The device and method of oil slick in earth solution is removed in Rare-Earth Extraction Process |
| CN110294489A (en) * | 2019-08-13 | 2019-10-01 | 包头稀土研究院 | The processing method of rare-earth chloride solution |
| CN110295284A (en) * | 2019-08-13 | 2019-10-01 | 包头稀土研究院 | The method for preparing solution of cerium chloride by oxidation |
| CN110342562A (en) * | 2019-08-13 | 2019-10-18 | 包头稀土研究院 | The separation method of organic impurities in the rare-earth chloride solution that acid system decomposes |
| CN110422870A (en) * | 2019-08-13 | 2019-11-08 | 包头稀土研究院 | The deoiling method of rare earth bromide solution |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633517A (en) * | 2008-07-23 | 2010-01-27 | 甘肃稀土新材料股份有限公司 | Production process of oil-free cerium carbonate |
| CN101880053A (en) * | 2010-08-01 | 2010-11-10 | 益阳鸿源稀土有限责任公司 | Method for preparing oil-free rare earth carbonate |
-
2017
- 2017-10-27 CN CN201711027536.2A patent/CN107879370A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633517A (en) * | 2008-07-23 | 2010-01-27 | 甘肃稀土新材料股份有限公司 | Production process of oil-free cerium carbonate |
| CN101880053A (en) * | 2010-08-01 | 2010-11-10 | 益阳鸿源稀土有限责任公司 | Method for preparing oil-free rare earth carbonate |
Non-Patent Citations (5)
| Title |
|---|
| 崔志澂 等: "《工业废水处理》", 31 October 1989, 冶金工业出版社 * |
| 樊宝德 等: "《油库安全技术手册》", 31 January 2006, 中国石化出版社 * |
| 王绍文 等: "《环保设备材料手册（第2版）》", 31 August 2000, 冶金工业出版社 * |
| 陈来成 等: "《石油化学》", 30 September 2012, 石油工业出版社 * |
| 韩放: "《抚顺油页岩工业技术及应用》", 30 June 2014, 辽宁科学技术出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266873A (en) * | 2018-11-13 | 2019-01-25 | 中国北方稀土（集团）高科技股份有限公司 | The device and method of oil slick in earth solution is removed in Rare-Earth Extraction Process |
| CN110294489A (en) * | 2019-08-13 | 2019-10-01 | 包头稀土研究院 | The processing method of rare-earth chloride solution |
| CN110295284A (en) * | 2019-08-13 | 2019-10-01 | 包头稀土研究院 | The method for preparing solution of cerium chloride by oxidation |
| CN110342562A (en) * | 2019-08-13 | 2019-10-18 | 包头稀土研究院 | The separation method of organic impurities in the rare-earth chloride solution that acid system decomposes |
| CN110422870A (en) * | 2019-08-13 | 2019-11-08 | 包头稀土研究院 | The deoiling method of rare earth bromide solution |
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Application publication date: 20180406 |