CN105777789B - Di Aier acid Complexes of Uranyl and preparation method thereof, Di Aier acid purposes - Google Patents
Di Aier acid Complexes of Uranyl and preparation method thereof, Di Aier acid purposes Download PDFInfo
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- CN105777789B CN105777789B CN201610219061.6A CN201610219061A CN105777789B CN 105777789 B CN105777789 B CN 105777789B CN 201610219061 A CN201610219061 A CN 201610219061A CN 105777789 B CN105777789 B CN 105777789B
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- 239000002253 acid Substances 0.000 title claims abstract description 64
- 125000005289 uranyl group Chemical group 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title abstract description 16
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052770 Uranium Inorganic materials 0.000 claims abstract description 14
- 229910002007 uranyl nitrate Inorganic materials 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 17
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 8
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000003446 ligand Substances 0.000 description 9
- 238000002329 infrared spectrum Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910002651 NO3 Inorganic materials 0.000 description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 3
- 230000000536 complexating effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 150000001257 actinium Chemical class 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- WYICGPHECJFCBA-UHFFFAOYSA-N dioxouranium(2+) Chemical compound O=[U+2]=O WYICGPHECJFCBA-UHFFFAOYSA-N 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 239000002915 spent fuel radioactive waste Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical group CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- ZXVONLUNISGICL-UHFFFAOYSA-N 4,6-dinitro-o-cresol Chemical group CC1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O ZXVONLUNISGICL-UHFFFAOYSA-N 0.000 description 1
- -1 Thiele ' s Acid Chemical compound 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052768 actinide Inorganic materials 0.000 description 1
- 150000001255 actinides Chemical class 0.000 description 1
- 229910052767 actinium Inorganic materials 0.000 description 1
- QQINRWTZWGJFDB-UHFFFAOYSA-N actinium atom Chemical compound [Ac] QQINRWTZWGJFDB-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- MGDLAMAVAFJRBZ-UHFFFAOYSA-N cyclopenta-1,3-diene formic acid Chemical compound C(=O)O.C1=CC=CC1 MGDLAMAVAFJRBZ-UHFFFAOYSA-N 0.000 description 1
- KRHOUGAQUGCCJI-UHFFFAOYSA-N cyclopenta-1,3-diene-1-carboxylic acid Chemical compound OC(=O)C1=CC=CC1 KRHOUGAQUGCCJI-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000005595 deprotonation Effects 0.000 description 1
- 238000010537 deprotonation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 1
- 238000001437 electrospray ionisation time-of-flight quadrupole detection Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- OQUOOEBLAKQCOP-UHFFFAOYSA-N nitric acid;hexahydrate Chemical class O.O.O.O.O.O.O[N+]([O-])=O OQUOOEBLAKQCOP-UHFFFAOYSA-N 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000013110 organic ligand Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/003—Compounds containing elements of Groups 3 or 13 of the Periodic Table without C-Metal linkages
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/32—Carboxylic acids
- C22B3/324—Naphthenic acids
-
- 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
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
-
- 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
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
- C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
- C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
- C22B60/026—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries liquid-liquid extraction with or without dissolution in organic solvents
-
- 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
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0291—Obtaining thorium, uranium, or other actinides obtaining thorium
-
- 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
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0295—Obtaining thorium, uranium, or other actinides obtaining other actinides except plutonium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Compounds Of Unknown Constitution (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
This application discloses a kind of Di Aier acid Complexes of Uranyl and preparation method thereof, Di Aier acid purposes, which includes the following steps：With Thiele, Di Aier acid and uranyl nitrate are raw material, synthesize Thiele acid Complexes of Uranyl with hydro-thermal method.The present invention also provides a kind of Complexes of Uranyl, are prepared according to above-mentioned preparation method.The present invention successfully synthesizes Thiele acid Complexes of Uranyl by hydro-thermal method.During preparing above compound, preparation method is simple and practical, and reaction efficiency is higher.The structure of product is confirmed by infrared and mass spectrogram, further illustrates Thiele acid to the stronger coordination ability of uranyl, has the potentiality as Novel Uranium extractant.
Description
Technical field
The application belongs to the field of chemical synthesis, and in particular to the preparation method of Di Aier acid Complexes of Uranyl, Di Aier acid
Purposes.
Background technology
In the peaceful use of nuclear energy, a considerable number of radwaste is produced, wherein unreacted uranium (including uranium-
238 and uranium -238) account for the major part of spentnuclear fuel total weight.How to handle these uranium waste materials is that the important of ENVIRONMENTAL RADIOCHEMISTRY is ground
Study carefully direction.The research for uranium processing is concentrated mainly on absorption or uranium of the uranyl on mineral or other synthetic materials both at home and abroad
Coordination of the acyl in water solution system, ligand are inorganic acid radical, or to obtain the uranyl complex of certain novel structure and
The organic ligand of design.Currently used nuclear fuel post-processing extractant is tributyl phosphate (TBP), in order to overcome its radiation hardness
Property it is poor the shortcomings of, find new extractant become research emphasis.
Organic polyacid is widely used as bridge ligand and constructs high thermal stability Inorganic-Organic Hybrid Material, in carboxylic acid
Multiple oxygen atoms can be used as ligand and participate in coordination, and its abundant coordination mode leads to the diversity of structural framing.Adjacent/
The complex of the organic polyacids such as phthalic acid, 6,6 '--2,2 '-diphenic acids of dinitro and uranyl ion has been reported.
The selection of existing uranium nuclear fuel post-processing extractant is fewer, and has various limitations.It is good to find complexing efficiency
New extractant becomes research emphasis.
Invention content
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of Di Aier acid uranium that complexing efficiency is relatively high
Acyl complex.
The present invention also provides a kind of preparation methods of the simple Di Aier acid Complexes of Uranyl of preparation method.
The present invention provides a kind of purposes of above-mentioned Di Aier acid as metal extraction agent again.
In a first aspect, the present invention provides a kind of preparation method of Di Aier acid Complexes of Uranyl, include the following steps：
With Thiele, Di Aier acid and uranyl nitrate are raw material, synthesize Thiele acid Complexes of Uranyl with hydro-thermal method.
Second aspect, the present invention also provides a kind of Di Aier acid Complexes of Uranyl, are prepared into according to above-mentioned preparation method
It arrives.
The third aspect, the present invention provide a kind of purposes of above-mentioned Di Aier acid as metal extraction agent, the metal again
Selected from actinides.
The present invention successfully synthesizes Thiele acid Complexes of Uranyl by hydro-thermal method.In the process for preparing above compound
In, preparation method is simple and practical, and reaction efficiency is higher.The structure of product is confirmed by infrared and mass spectrogram, further
Illustrate that Thiele acid to the stronger coordination ability of uranyl, has the potentiality as Novel Uranium extractant.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the infrared spectrum of Thiele provided in an embodiment of the present invention acid；
Fig. 2 is the infrared spectrum of uranyl nitrate provided in an embodiment of the present invention；
Fig. 3 is the infrared spectrum of product Thiele acid Complexes of Uranyl provided in an embodiment of the present invention；
Fig. 4 is the mass spectrogram of Thiele acid Complexes of Uranyl provided in an embodiment of the present invention.
Specific implementation mode
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, is illustrated only in attached drawing and invent relevant part.
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.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The present invention provides a kind of preparation method of Di Aier acid Complexes of Uranyl, includes the following steps：
With Thiele, Di Aier acid and uranyl nitrate are raw material, synthesize Thiele under weak basic condition with hydro-thermal method
Sour Complexes of Uranyl.
A kind of currently preferred technical solution, preparation method of Di Aier acid Complexes of Uranyl, includes the following steps：
(1) reaction of sodium bicarbonate is added in the water slurry of Thiele acid, is then heated to the first preset temperature, until
Solid all dissolves；
(2) uranyl nitrate is added in above-mentioned solution, and reaction vessel is sealed, reacted under the second preset temperature, and
Stirring generates precipitation；
(3) precipitation is collected and is washed with water, be then air-dried, obtain Complexes of Uranyl.
The present invention selects organic acid Thiele acid as uranyl ligand, and the oxygen atom in carboxylic acid can be used as ligand participation
Coordination, the experimental results showed that complexing efficiency is relatively high.During preparing above compound, preparation method is simple and practical, instead
Answer efficiency higher.The structure of product is confirmed by infrared and mass spectrogram.
Preferably, first preset temperature is 50-60 DEG C, and heating time is 1.5-2.5 hours.
Preferably, second preset temperature is 100-120 DEG C, and the time of the stirring is 3-5 days.
Preferably, in the water slurry of the Thiele acid, the ratio of Thiele acid and water is 0.20g-1.20g
Thiele acid/100mL water；The mass ratio of the sodium bicarbonate and Thiele acid is 1:1.3-2.6.
Preferably, the mass ratio of the uranyl nitrate and Thiele acid is 2.28:1.
The present invention also provides a kind of Di Aier acid Complexes of Uranyl, are prepared according to above-mentioned preparation method.
The present invention provides a kind of purposes of above-mentioned Di Aier acid as metal extraction agent again, and the metal is selected from actinium series member
Element.
Preferably, the metal is actinium, thorium, protactinium or uranium.
The present invention selects Dimeric Cyclopentadiene Carboxylic Acid, i.e. Thiele ' s Acid, the acid of Di Aier, as ligand, using water
Hot method synthesizes Thiele, Di Aier acid Complexes of Uranyl, and is carried out to its Nomenclature Composition and Structure of Complexes according to experimental result and spectral data
Characterization, evaluates its effect and feature as Novel Uranium extractant.The present invention, can be with expanded metal using Thiele acid as ligand
It selects to actinium series other elements.
Below by specific embodiment, the present invention is described further：
The selection of reagent and instrument of the present invention：Uranyl nitrate (UO2(NO3)2·6H2O, A.R., Beijing coupling science and technology are limited
Company), sodium bicarbonate (NaHCO3, A.R., Beijing Chemical Plant), experimental water is deionized water.Thiele acid is before laboratory
Phase synthesis gained or commercial product.
Key instrument has infrared spectrometer (IR, Bruker, Tensor 27), electrospray ionization mass spectrometry (MS, Bruker
Daltonics, ESI-Q-TOF).
Embodiment 1
A kind of preparation method of Di Aier acid Complexes of Uranyl, includes the following steps：
(1) 0.220g is added in 20mL water, 1.0mmol Thiele acid forms suspension.In above-mentioned water slurry
0.168g, 2.0mmol sodium bicarbonates is added, reaction mixture is heated at 55 DEG C, has gas generation, solid is all molten after 2 hours
Solution, and generated again without gas.
(2) 0.502g, 1.0mmol uranyl nitrate hexahydrates are added in above-mentioned solution, and the seal of tube will be reacted.Reaction exists
110 DEG C are stirred 4 days, and a large amount of brown precipitates are generated.Above-mentioned precipitation is collected and fully washs (10mL × 6 time) with water, it is then empty
Gas is dried, i.e., is placed 1-2 days on experimental bench, is spontaneously dried, is obtained 0.457g products, yield 93%, structure passes through red
Outer and mass spectrogram is confirmed.
Referring to Fig. 1, infrared spectrum is obtained by infrared spectrometer test, analysis infrared spectrum it is found that Thiele acid feature
Absorption peak is in 1672cm-1Place is VC=OStretching vibration absworption peak；2973cm-1Left and right is the V of hydroxyl in-COOHO-HStretching vibration is inhaled
Receive peak.Referring to Fig. 3, is tested by infrared spectrometer and obtain infrared spectrum, in the spectrogram of Thiele acid Complexes of Uranyl,
1672cm-1The carbonyl peak red shift at place is to 1619cm-1Place, Δ VC=OFor 53cm-1, this shows that ligand is directly matched by carbonyl with uranium
Position；2973cm-1The peak of left and right disappears substantially, this shows that the deprotonation of-COOH has occurred in ligand；And 3358cm-1Place occurs
Characteristic peak may be to contain the crystallization water in product.
Referring to Fig. 2, infrared spectrum is obtained by infrared spectrometer test, the characteristic absorption peak of uranyl nitrate is respectively in 942cm-1
Locate (O-U-O), 1531cm-1Locate (NO3 ˉ), 1266cm-1Locate (NO3 ˉ), 1020cm-1Locate (NO3 ˉ) and 735cm-1Locate (NO3 ˉ).Referring to
In the spectrogram of Fig. 3, Thiele acid Complexes of Uranyl, in 915cm-1There is a strong absworption peak at place, is UO2 2+Antisymmetric stretching vibration peak；
And NO3 ˉPeak completely disappear, illustrate there is no NO in complex3 ˉIn the presence of；466cm-1The strong absworption peak at place is regarded as oxygen in carbonyl
With the absorption (U-O) of uranium.
The above data are consistent with the existing infrared spectrum characterization of similar complex of mono-crystalline structures uranium, from the above cooperation
The variation of characteristic group's vibration frequency of object is it is found that there are certain phase interactions between uranyl ion and Thiele acid molecules
With complex contains Thiele acid and water, therefore, infers that its molecular formula is shown in figure below.
Reaction equation is：
Referring to Fig. 4, by MS spectrum analysis it is found that the cyclopentadiene formic acid monomer due to Thiele acid is easy reversible polymerization,
There are diversity for its mass spectra peak.Such as the bigger peak of several intensity is presumed as follows, m/z 356 is [2M+4Na-H]3+, m/z
535 be [M+2Na-H]+, m/z 374 and m/z 397 are fragment peak.
The mass-to-charge ratio value of X-axis-ion in Fig. 4, Y-axis-intensity, wherein intens are intensity, and+MS is expressed as cation matter
Spectrum, 0.1-0.6min are experiment durations, and Deconvoluted indicates that data are deconvolution.
Embodiment 2
Using the identical method with embodiment 1, except that：In water slurry：The ratio of Thiele acid and water is
0.20g Thiele acid/100mL water；The mass ratio of the sodium bicarbonate and Thiele acid is 1:2.0.
Embodiment 3
Using the identical method with embodiment 1, except that：In water slurry：The ratio of Thiele acid and water is
1.20g Thiele acid/100mL water；The mass ratio of the sodium bicarbonate and Thiele acid is 1:2.6.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical solutions of arbitrary combination and formation.Such as features described above has similar work(with (but not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (2)
1. a kind of purposes of Di Aier acid as uranium extraction agent, which is characterized in that concrete application method includes the following steps：
（1）Reaction of sodium bicarbonate is added in the water slurry of Di Aier acid, is then heated to the first preset temperature, until solid
All dissolvings；
（2）Uranyl nitrate is added in above-mentioned solution, and reaction vessel is sealed, is reacted under the second preset temperature, and stir,
Generate precipitation；
（3）The precipitation is collected and is washed with water, is then air-dried, obtains Complexes of Uranyl；
First preset temperature is 50-60 DEG C, and heating time is 1.5-2.5 hours；
Second preset temperature is 100-120 DEG C, and the time of the stirring is 3-5 days；
In the water slurry of the Di Aier acid, the ratio of Di Aier acid and water is 0.20g-1.20g Di Aier acid/100mL
Water；The mass ratio of the sodium bicarbonate and Di Aier acid is 1:1.3-2.6.
2. purposes according to claim 1, which is characterized in that the mass ratio of the uranyl nitrate and Di Aier acid is
2.28:1。
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| CN105352897A (en) * | 2015-09-02 | 2016-02-24 | 中国原子能科学研究院 | Method for determination of complex extraction equilibrium constant of double extraction agent organic phase system |
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