CN1060876A - The preparation method of Samarium trioxide - Google Patents
The preparation method of Samarium trioxide Download PDFInfo
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- CN1060876A CN1060876A CN91108428A CN91108428A CN1060876A CN 1060876 A CN1060876 A CN 1060876A CN 91108428 A CN91108428 A CN 91108428A CN 91108428 A CN91108428 A CN 91108428A CN 1060876 A CN1060876 A CN 1060876A
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- samarium
- trioxide
- neodymium
- samarium trioxide
- extraction
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- 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
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of Solvent Extraction Separation rare-earth process.With the Xunwu ion adsorption type rare earth ore is raw material, in P507-HCl system neodymium samarium grouping process, at the Samarium trioxide peak that has accumulated, the place opens three outlets at extraction section organic phase Samarium trioxide peak value, add a certain amount of extraction agent in three outlet back one-levels simultaneously, make that the Samarium trioxide more than 50% is once made the Samarium trioxide product of grade greater than 95% in the raw material, and wherein europium sesquioxide content is less than 0.05%, make original technology under the prerequisite that does not increase equipment, enlarge the raw material treatment capacity, improved production efficiency.
Description
The present invention relates to a kind of Solvent Extraction Separation rare-earth process, this technology is raw material with the Xunwu ion adsorption type rare earth ore.
The Xunwu ion adsorption type rare earth ore is in P507-HCl system neodymium samarium grouping process, under the situation of rill ratio, in the extraction section organic phase, accumulated a Samarium trioxide peak, peak value place Samarium trioxide grade is up to 95～96%, wherein europium sesquioxide content is less than 0.05%, and all the other most rare earth impurities are Neodymium trioxide, Praseodymium trioxide.This Samarium trioxide peak once if can be taken out with the grade greater than 95% from three outlets, and respectively the product invariant position is bad to manage maintenance, can under the prerequisite that does not increase equipment, enlarges the raw material treatment capacity, boost productivity.And this problem is not resolved in the prior art.
Task of the present invention is to propose a kind of Samarium trioxide preparation method according to the situation that occurs the Samarium trioxide peak in the above-mentioned existing technology neodymium samarium grouping process, with under the prerequisite that does not increase equipment, enlarges the raw material treatment capacity, enhances productivity.
For finishing the foregoing invention task, the technical solution that the present invention proposes is: with the Xunwu ion adsorption type rare earth ore is raw material, rare earth chloride concentration is 250～270 grams per liters, PH=2-3, P507-kerosin with 50% is an extraction agent, use the ammoniacal liquor saponification, make wherein ammonium concentration at 0.54～0.57 equivalent, with 2NHCl is washing lotion, use the fractionation extraction mode, extraction quantity is between 0.26～0.29, in P507-HCl system neodymium samarium grouping process, the Samarium trioxide peak value is opened three outlets from the extraction section organic phase, and the Samarium trioxide in the raw material more than 50% is once made the Samarium trioxide product of grade greater than 95%, wherein europium sesquioxide content is less than 0.05%, and all the other rare earth impurities are Neodymium trioxide and Praseodymium trioxide.Along with the continuous taking-up of Samarium trioxide product from three outlet organic phases, original stream ratio is destroyed, and original balance is destroyed, and three outlet subsequent stages are compared all and reduced, the later middle heavy rare earths of Samarium trioxide is moved forward, cause europium sesquioxide content increase in the Samarium trioxide product.The present invention adds the 1-3 P507-kerosin extraction agent doubly that volume is taken out in three outlets in three outlet back one-levels, can stop element reach behind the peak effectively, the content of europium sesquioxide in the control three outlet Samarium trioxide products.Behind the technological balance, Neodymium trioxide content is less than 0.39% in the outlet of neodymium samarium grouping organic phase, and Samarium trioxide content is less than 0.06% in the outlet of neodymium samarium grouping water.
The present invention is because in the ion adsorption type rare earth ore P507-HCl system neodymium samarium grouping process of Xunwu, Samarium trioxide peak at accumulation, in the extraction section organic phase, open three outlets, add a certain amount of extraction agent in three outlet back one-levels simultaneously, make that the Samarium trioxide more than 50% is once made the Samarium trioxide product of grade greater than 95% in the raw material, and europium sesquioxide content makes original technology under the prerequisite that does not increase equipment less than 0.05%, enlarge the raw material treatment capacity, improved production efficiency.
With the Xunwu ion adsorption type rare earth ore is raw material, rare earth chloride concentration is 270 grams per liters, feed liquid PH=2, P507-kerosin with 50% is an extraction agent, the ammoniacal liquor saponification equivalent is 0.57 equivalent, adopt the fractionation extraction mode, in neodymium samarium grouping process, when extraction quantity is 0.27～0.29M, Samarium trioxide accumulation climax is 95%～96% in the extraction section organic phase, open three outlets at the peak value place, add the P507 extraction agent in three outlet back one-levels, its add-on is taken out volume with three outlets and is equated, like this, substantially do not setting up under the situation about being equipped with, 50% Samarium trioxide stably once takes out from three outlets in the raw material, and grade is greater than 95%, wherein europium sesquioxide content is less than 0.05%, other most rare earth impurities are Neodymium trioxide and Praseodymium trioxide, simultaneously, the neodymium samarium divide into groups surplus liquid produce in Samarium trioxide content less than 0.06%; The neodymium samarium divides into groups in organic outlet Neodymium trioxide content less than 0.38%.If do not add the P507 extraction agent in three outlet back, europium sesquioxide content will be elevated to 0.28% in the three outlet Samarium trioxide products so, after one-level adds 2～3 times P507 extraction agent of three outlet taking-up volumes after three outlets, europium sesquioxide content from the Samarium trioxide product of three outlet gained 95% also can continue to reduce, can reach 0.005%, when add-on surpasses more than 3 times, former technology will change.
Claims (1)
1, a kind of preparation method of Samarium trioxide, with the Xunwu ion adsorption type rare earth ore is raw material, rare earth chloride concentration is 250～270 grams per liters, PH=2-3, P507-kerosin with 50% is an extraction agent, use the ammoniacal liquor saponification, make wherein ammonium concentration at 0.54～0.57 equivalent, with 2NHCl is solution, use the fractionation extraction mode, extraction quantity is characterized in that between 0.26～0.29: in P507-HCl system neodymium samarium grouping process, the Samarium trioxide peak value is opened three outlets from the extraction section organic phase, once make grade greater than 95% Samarium trioxide product, wherein europium sesquioxide content is less than 0.05%, and all the other rare earth impurities are Neodymium trioxide and Praseodymium trioxide, simultaneously, add the 1-3 P507-kerosin extraction agent doubly that volume is taken out in three outlets in three outlet back one-levels, behind the technological balance, Neodymium trioxide content is less than 0.39% in the outlet of neodymium samarium grouping water, and Samarium trioxide content is less than 0.06% in the outlet of neodymium samarium grouping water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91108428A CN1060876A (en) | 1991-11-05 | 1991-11-05 | The preparation method of Samarium trioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91108428A CN1060876A (en) | 1991-11-05 | 1991-11-05 | The preparation method of Samarium trioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1060876A true CN1060876A (en) | 1992-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91108428A Pending CN1060876A (en) | 1991-11-05 | 1991-11-05 | The preparation method of Samarium trioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1060876A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054646C (en) * | 1995-11-08 | 2000-07-19 | 北京大学 | Organic phase continuous saponification technique |
| CN1323175C (en) * | 2004-08-04 | 2007-06-27 | 胡建康 | Production method of acid extractant saponifying organic phase used in rare earth extraction separation |
| CN100417734C (en) * | 2005-12-21 | 2008-09-10 | 北京方正稀土科技研究所有限公司 | No-saponifying pre-grouped extraction and separation process of ion adsorbing RE mineral |
| CN102432056A (en) * | 2011-10-13 | 2012-05-02 | 陕西科技大学 | Method for preparing Sm2O3 nano crystals by solvent thermal method |
| CN103924080A (en) * | 2014-03-18 | 2014-07-16 | 包头稀土研究院 | Method for increasing samarium and zinc extraction separation factor in ammonium chloride system by increasing phase ratio |
-
1991
- 1991-11-05 CN CN91108428A patent/CN1060876A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054646C (en) * | 1995-11-08 | 2000-07-19 | 北京大学 | Organic phase continuous saponification technique |
| CN1323175C (en) * | 2004-08-04 | 2007-06-27 | 胡建康 | Production method of acid extractant saponifying organic phase used in rare earth extraction separation |
| CN100417734C (en) * | 2005-12-21 | 2008-09-10 | 北京方正稀土科技研究所有限公司 | No-saponifying pre-grouped extraction and separation process of ion adsorbing RE mineral |
| CN102432056A (en) * | 2011-10-13 | 2012-05-02 | 陕西科技大学 | Method for preparing Sm2O3 nano crystals by solvent thermal method |
| CN102432056B (en) * | 2011-10-13 | 2013-08-14 | 陕西科技大学 | Method for preparing Sm2O3 nano crystals by solvent thermal method |
| CN103924080A (en) * | 2014-03-18 | 2014-07-16 | 包头稀土研究院 | Method for increasing samarium and zinc extraction separation factor in ammonium chloride system by increasing phase ratio |
| CN103924080B (en) * | 2014-03-18 | 2016-09-28 | 包头稀土研究院 | Raising samarium and zinc method of extract and separate factor in ammonium chloride system are compared in a kind of increase |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |