CN102392131A - Continuous saponification method of organic extractant - Google Patents
Continuous saponification method of organic extractant Download PDFInfo
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- CN102392131A CN102392131A CN2011103871180A CN201110387118A CN102392131A CN 102392131 A CN102392131 A CN 102392131A CN 2011103871180 A CN2011103871180 A CN 2011103871180A CN 201110387118 A CN201110387118 A CN 201110387118A CN 102392131 A CN102392131 A CN 102392131A
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- organic extractant
- saponification
- continuous
- caustic soda
- organic
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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
Abstract
The invention provides a continuous saponification method of organic extractant. The method is characterized by comprising the following steps of: inputting organic extractant and caustic soda solution simultaneously into a first stage soap tank; mixing and entering into a secondary stage soap tank; after two stages of saponification, conveying extractant back to the extraction equipment. The invention has advantage that continuous saponification is employed; and after two grade mixing saponification, organic extractant flows directly into the extraction equipment to ensure complete saponification while reusing the organic extractant fully, so as to satisfy requirements of continuous full load production.
Description
Technical field
The present invention relates to a kind of continuous saponification method of organic extractant, be used for the saponification of organic extractant such as P204 and P507.
Background technology
In metallurgy industry, when using organic extractant to carry out abstraction impurity removal, organic extractant generally returns extraction process again through common Lower tank saponification and recycles; At first, organic the squeezing in the soap tank in back will be used, and caustic soda amount need be added through organic extractant before calculating soap; In the low level soap tank, squeeze into caustic soda then; After detection reaches the saponification requirement after mixing, again organic extractant behind the soap is got to extraction box, use.There is following problem in this kind method: troublesome poeration, and length consuming time, the utilization ratio of organic extractant is lower.When throughput requirements strengthens, cause organic extraction dosage not enough easily, saponification time waits the problem that influences production schedule inadequately.
Summary of the invention
The objective of the invention is to disclose a kind of continuous saponification method of organic extractant, it is easy and simple to handle, and fully the recycle organic extractant is realized serialization production.
In order to achieve the above object; The invention provides a kind of continuous saponification method of organic extractant; It is characterized in that concrete steps are: organic extractant before the saponification and caustic soda soln are imported the one-level soap tank simultaneously, mix the back and get into the secondary soap tank; After two-stage is mixed saponification, organic extractant is carried back extraction equipment.
Preferably, described organic extractant is at least a of di-(2-ethylhexyl)phosphoric acid (P204) and the basic ester of 2-ethylhexyl phosphonic acids single 2-ethyl (P507).
Preferably, the concentration of described caustic soda soln is 6.2～16.6mol/L.
Preferably, before with saponification, before the organic extractant input one-level soap tank, need detect it, concrete steps are: get organic extractant sample before the saponification with sampling jug, with the concentration of caustic soda soln titration detection organic extractant.
Preferably, total saponification degree of described organic extractant is 45%～75%.
The invention has the advantages that: use continuous saponification, after two-stage was mixed saponification, organic extractant directly flowed back to extraction equipment after the saponification, guaranteed saponification simultaneously completely, and abundant recycle organic extractant has satisfied the requirement of serialization, full production.
Description of drawings
Fig. 1 is the continuous saponification method flow diagram of organic extractant.
Embodiment
Below in conjunction with embodiment, further specify the present invention.
Embodiment 1: the continuous saponification method of organic extractant
(1) sampling detects before the saponification:
From the ZC25 level clarifying chamber of extraction equipment, get organic extractant P204 sample before the 2mL saponification, detect the concentration of organic extractant P204 with the caustic soda soln titration with sampling jug.
(2) continuous saponification:
Organic extractant P204 is from the ZC25 level clarifying chamber of extraction equipment before the saponification; Caustic soda soln is beaten to the one-level soap tank through organic under meter and caustic soda under meter by the caustic soda scale tank simultaneously, mixes from flowing to the secondary soap tank; After two-stage is mixed saponification; Organic extractant P204 is carried back the organic groove that drops down of extraction equipment ZC02 level mixing section, wherein, the flow Q of described organic extractant P204
OrganicFlow Q with caustic soda soln
Caustic sodaMeet the following conditions:
Wherein, B is a saponification degree, V
1Consume the volume of caustic soda soln when detecting before the organic extractant saponification, unit is mL, and C is the concentration that detects before the organic extractant saponification with caustic soda soln, and unit is mol/L, V
0Be the volume of organic extractant sample before the saponification of being got, value is 2mL, C
0Be the concentration of caustic soda soln, value is 10.83mol/L.
(3) get saponification after the organic extractant sample detect:
Organic extractant detects after getting the secondary soap tank with sampling jug, and total saponification degree of organic extractant P204 is controlled to be 59%, and when finding that saponification degree is on the low side or higher, it is qualified to saponification degree in time to check and adjust organic under meter flow.
Embodiment 2: the continuous saponification method of organic extractant
(1) sampling detects before the saponification:
From the ZC25 level clarifying chamber of extraction equipment, get organic extractant P507 sample before the 2mL saponification, detect the concentration of organic extractant P507 with the caustic soda soln titration with sampling jug.
(2) continuous saponification:
Organic extractant P507 is from the ZC25 level clarifying chamber of extraction equipment before the saponification; Caustic soda soln is beaten to the one-level soap tank through organic under meter and caustic soda under meter by the caustic soda scale tank simultaneously, mixes from flowing to the secondary soap tank; After two-stage is mixed saponification; Organic extractant P507 is carried back the organic groove that drops down of extraction equipment ZC02 level mixing section, wherein, the flow Q of described organic extractant P507
OrganicFlow Q with caustic soda soln
Caustic sodaMeet the following conditions:
Wherein, B is a saponification degree, V
1Consume the volume of caustic soda soln when detecting before the organic extractant saponification, unit is mL, and C is the concentration that detects before the organic extractant saponification with caustic soda soln, and unit is mol/L, V
0Be the volume of organic extractant sample before the saponification of being got, value is 2mL, C
0Be the concentration of caustic soda soln, value is 10.83mol/L.
(3) get saponification after the organic extractant sample detect:
Organic extractant detects after getting the secondary soap tank with sampling jug, and total saponification degree of organic extractant P507 is controlled to be 61%, and when finding that saponification degree is on the low side or higher, it is qualified to saponification degree in time to check and adjust organic under meter flow.
Claims (5)
1. the continuous saponification method of an organic extractant; It is characterized in that concrete steps are: organic extractant before the saponification and caustic soda soln are imported the one-level soap tank simultaneously, mix the back and get into the secondary soap tank; After two-stage is mixed saponification, organic extractant is carried back extraction equipment.
2. the continuous saponification method of organic extractant as claimed in claim 1 is characterized in that, described organic extractant is at least a of di-(2-ethylhexyl)phosphoric acid and the basic ester of 2-ethylhexyl phosphonic acids single 2-ethyl.
3. the continuous saponification method of organic extractant as claimed in claim 1 is characterized in that, the concentration of described caustic soda soln is 6.2～16.6mol/L.
4. the continuous saponification method of organic extractant as claimed in claim 1; It is characterized in that; Organic extractant is imported before the one-level soap tank before with saponification; Need to detect it, concrete steps are: get organic extractant sample before the saponification with sampling jug, with the concentration of caustic soda soln titration detection organic extractant.
5. the continuous saponification method of organic extractant as claimed in claim 1 is characterized in that, total saponification degree of described organic extractant is 45%～75%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103871180A CN102392131A (en) | 2011-11-29 | 2011-11-29 | Continuous saponification method of organic extractant |
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| CN2011103871180A CN102392131A (en) | 2011-11-29 | 2011-11-29 | Continuous saponification method of organic extractant |
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| CN102392131A true CN102392131A (en) | 2012-03-28 |
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| CN2011103871180A Pending CN102392131A (en) | 2011-11-29 | 2011-11-29 | Continuous saponification method of organic extractant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495330A (en) * | 2020-12-09 | 2021-03-16 | 金川集团股份有限公司 | Continuous saponification device for organic extractant and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125261A (en) * | 1995-11-08 | 1996-06-26 | 北京大学 | Organic phase continuous saponification technique |
| CN1817403A (en) * | 2006-01-24 | 2006-08-16 | 北京有色金属研究总院 | Saponification of organic extractant |
| CN1872377A (en) * | 2006-01-04 | 2006-12-06 | 有研稀土新材料股份有限公司 | Method for saponifying extraction agent |
| CN101696467A (en) * | 2009-10-27 | 2010-04-21 | 王梓柱 | Method for saponifying organic extracting agent |
| JP2011094219A (en) * | 2009-11-02 | 2011-05-12 | Nippon Catalyst Cycle Kk | Extracting solution for vanadium, and method for solvent-extracting vanadium |
| JP2011162817A (en) * | 2010-02-05 | 2011-08-25 | Dowa Holdings Co Ltd | Metal extractant, and method for extracting palladium and method for extracting zirconium using the same |
-
2011
- 2011-11-29 CN CN2011103871180A patent/CN102392131A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125261A (en) * | 1995-11-08 | 1996-06-26 | 北京大学 | Organic phase continuous saponification technique |
| CN1872377A (en) * | 2006-01-04 | 2006-12-06 | 有研稀土新材料股份有限公司 | Method for saponifying extraction agent |
| CN1817403A (en) * | 2006-01-24 | 2006-08-16 | 北京有色金属研究总院 | Saponification of organic extractant |
| CN101696467A (en) * | 2009-10-27 | 2010-04-21 | 王梓柱 | Method for saponifying organic extracting agent |
| JP2011094219A (en) * | 2009-11-02 | 2011-05-12 | Nippon Catalyst Cycle Kk | Extracting solution for vanadium, and method for solvent-extracting vanadium |
| JP2011162817A (en) * | 2010-02-05 | 2011-08-25 | Dowa Holdings Co Ltd | Metal extractant, and method for extracting palladium and method for extracting zirconium using the same |
Non-Patent Citations (2)
| Title |
|---|
| 杨钟林等: "P204萃取剂的皂化技术", 《上海有色金属》, vol. 5, no. 1, 29 February 1984 (1984-02-29) * |
| 简启发: "碳铵溶液萃取槽内连续皂化有机相", 《江西有色金属》, vol. 7, no. 4, 31 December 1993 (1993-12-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495330A (en) * | 2020-12-09 | 2021-03-16 | 金川集团股份有限公司 | Continuous saponification device for organic extractant and control method |
| CN112495330B (en) * | 2020-12-09 | 2023-11-21 | 金川集团股份有限公司 | Organic extractant continuous saponification device and control method |
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Application publication date: 20120328 |