CN103359792A - MgFe binary hydrotalcite-like compound with high iron content and preparation method thereof - Google Patents
MgFe binary hydrotalcite-like compound with high iron content and preparation method thereof Download PDFInfo
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Abstract
The invention relates to an MgFe binary hydrotalcite-like compound with high iron content. The MgFe binary hydrotalcite-like compound is a layered hydroxide with molecular composition being [M(II)1-xM(III)x(OH)2]x+Ax/nn-.mH2O, wherein M(II) is divalent metal ion Mg<2+>, M(III) is trivalent metal ion Fe<3+>, A is anion of -n, x is mole ratio of M(III) to [M(III)+M(II)], and m is the number of water of crystallization. The MgFe binary hydrotalcite-like compound is characterized in that the mole ratio of Mg<2+> to Fe<3+> is less than or equals to 1.5; x is less than 0.5 and greater than 0.4; A is OH<->, CO3<2->; and m=0-10. Meanwhile, the invention also discloses a preparation method of the MgFe binary hydrotalcite-like compound. The product obtained by the preparation method has advantages of single phase and high degree of crystallization.
Description
Technical field
The present invention relates to belong to materials chemistry, chemical technology field, relate in particular to higher MgFe binary type hydrotalcite of iron level and preparation method thereof.
Background technology
At present, the hydrotalcite molecular composition is [Mg
6A1
2(OH)
16] CO
34 H
2O, it is a kind of anion type laminated compound.Mg in the hydrotalcite
2+, Al
3+Be divalent-metal ion, M (III) obtain structural similitude for the trivalent metal ion isomorphous substitution a compounds by M (II), be called houghite (HTlc), claim again layered hydroxide.General formula can be expressed as [M (II)
1-xM (III)
x(OH)
2]
X+A
X/n N-MH
2O, wherein, M (II) is divalent-metal ion, such as Mg
2+, Mn
2+, Fe
2+, Co
2+, Zn
2+, Ca
2+Deng; M (III) is trivalent metal ion, such as A1
3+, Cr
3+, Mn
3+, Fe
3+, Co
3+, Ni
3+, La
3+Deng; A is that valence mumber is-negatively charged ion of n, such as Cl
-, OH
-, NO
-, CO
3 2-, SO
4 2-And organic anion; X is the mol ratio of M (III) and [M (III)+M (II)], and m is the crystallization water yield.
Because the main body inorganic layer after can inserting and modify through guest molecule shows abundant physics and chemistry character, they have widely in various fields such as catalyzer, support of the catalyst, fire retardant, sterilant, sewage-treating agent, electrorheological conditioning agent, medicine, medical carriers uses.Research the most widely houghite theme laminate is MgAl or ZnAl type, owing to introducing transition metal ion Fe in the main body laminate
3+The time, its potential characteristic such as photoelectromagnetism can be given some unique performances of LDHs, and the synthetic and research of MgFe-LDHs also more and more receives people's concern.
In the houghite research that different ions is formed, find that x will obtain pure LDH sample in 0.17 ~ 0.4 scope, divalent-metal ion oxyhydroxide, x will appear thereby some investigator has drawn when x＜0.2〉and 0.4 o'clock the conclusion of amorphous compound and trivalent metal ion compound will appear.In the previous literature about the report x of MgFe binary type hydrotalcite all in 0.17 ~ 0.4 scope, x in the synthetic MgFe binary type hydrotalcite〉0.4 MgFe binary type hydrotalcite then is not reported.
Summary of the invention
Technical problem to be solved by this invention provides the higher MgFe binary type hydrotalcite of iron level that a kind of phase is single, degree of crystallinity is high.
Another technical problem to be solved by this invention provides the preparation method of the MgFe binary type hydrotalcite that a kind of production cost is low, technique simple, the iron level of easy handling is higher.
For addressing the above problem, the MgFe binary type hydrotalcite that iron level of the present invention is higher, molecular composition is [M (II)
1-xM (III)
x(OH)
2]
X+A
X/n N-MH
2The layered hydroxide of O; Wherein, M (II) is divalent-metal ion Mg
2+, M (III) is trivalent metal ion Fe
3+, A is-negatively charged ion of n, and x is M (III) and the mol ratio of [M (III)+M (II)], and m is the crystallization water yield, it is characterized in that: described Mg
2+With described Fe
3+Mol ratio≤1.5,0.4＜x＜0.5, A is OH
-, CO
3 2-, m=0 ~ 10.
The preparation method of the MgFe binary type hydrotalcite that aforesaid iron level is higher may further comprise the steps:
⑴ be made into solubility magnesium salts, soluble ferric iron salt the mixing solutions of magnesium ion concentration≤1.5 mol/L, iron concentration≤1.0 mol/L;
⑵ be that 25 ~ 95 ℃, stir speed (S.S.) are under the condition of 100 ~ 600 rpm in normal pressure, temperature of reaction, add alkaline solution with the constant rate of 1 ~ 10 ml/min in the described mixing solutions and carry out precipitin reaction, and so that reaction end pH value between 8 ~ 10, namely gets reacted slip;
⑶ be transferred to described reacted slip in the autoclave, is that 100 ~ 260 ℃, stir speed (S.S.) are to react 1 ~ 6h under the condition of 100 ~ 700 rpm at hydrothermal temperature, obtains thick product;
⑷ filter after described thick product is cooled to room temperature, and with deionized water wash to filtrate without chlorion till, at last at 60 ~ 100 ℃ of drying 4 ~ 10 h, namely get the higher MgFe binary type hydrotalcite of iron level.
Mg in the mixing solutions among the described step ⑴
2+With Fe
3+Mol ratio≤1.5.
Alkaline solution among the described step ⑵ refers to hydroxide ion volumetric molar concentration≤sodium hydroxide of 2.0 mol/L, ammoniacal liquor; Or the sodium carbonate mixture of the sodium hydroxide of volumetric molar concentration≤2.0 mol/L and volumetric molar concentration≤1.0 mol/L, described carbanion volumetric molar concentration is Fe in the described mixing solutions
3+Between 0.5 times to 2 times of volumetric molar concentration.
The present invention compared with prior art has the following advantages:
1, the present invention controls iron level in the products therefrom by the variation of the pH value of control in the synthesis under normal pressure, control the crystallization of product by control hydrothermal temperature and the variation of time, thereby it is single to obtain phase again, and the higher x of degree of crystallinity〉0.4 MgFe-LDH.
2, the present invention is lower to the equipment material requirement, and does not include harmful substances in the reaction process, and is therefore not only with low cost, and non-environmental-pollution.
3, technique of the present invention is simple, and is easy to operate.
Embodiment
The MgFe binary type hydrotalcite that iron level is higher, molecular composition are [M (II)
1-xM (III)
x(OH)
2]
X+A
X/n N-MH
2The layered hydroxide of O; Wherein, M (II) is divalent-metal ion Mg
2+, M (III) is trivalent metal ion Fe
3+, A is-negatively charged ion of n, and x is M (III) and the mol ratio of [M (III)+M (II)], and m is the crystallization water yield; Mg
2+With Fe
3+Mol ratio≤1.5,0.4＜x＜0.5, A is OH
-, CO
3 2-, m=0 ~ 10.
Embodiment 1The preparation method of the MgFe binary type hydrotalcite that this iron level is higher may further comprise the steps:
⑴ with the solubility magnesium salts---bischofite, soluble ferric iron salt---, and ferric chloride (FeCl36H2O) is made into the mixing solutions of magnesium ion concentration=1.5 mol/L, iron concentration=1.0 mol/L.
Wherein: Mg in the mixing solutions
2+With Fe
3+Mol ratio=1.5.
⑵ get 400 ml mixing solutionss and join in the there-necked flask that volume is 1000 ml, be that 60 ℃, stir speed (S.S.) are under the condition of 100 rpm in normal pressure, temperature of reaction, add alkaline solution with the constant rate of 2 ml/min in the mixing solutions and carry out precipitin reaction, and so that reaction end pH value reaches at 10 o'clock, namely get reacted slip.
Wherein: alkaline solution refers to that the hydroxide ion volumetric molar concentration is the sodium hydroxide solution of 2.0 mol/L.
⑶ be transferred to reacted slip in the 2 L autoclaves, is that 160 ℃, stir speed (S.S.) are to react 4h under the condition of 100 rpm at hydrothermal temperature, obtains thick product.
⑷ filter after thick product is cooled to room temperature, and with deionized water wash to filtrate without chlorion till, at 80 ℃ of drying 6 h, namely get the MgFe binary type hydrotalcite of 0.4＜x＜0.5 at last.
Embodiment 2The preparation method of the MgFe binary type hydrotalcite that this iron level is higher may further comprise the steps:
⑴ with the solubility magnesium salts---bischofite, soluble ferric iron salt---, and ferric chloride (FeCl36H2O) is made into the mixing solutions of magnesium ion concentration=0.75 mol/L, iron concentration=0.5 mol/L.
Wherein: Mg in the mixing solutions
2+With Fe
3+Mol ratio=1.5.
⑵ get 400 ml mixing solutionss and join in the there-necked flask that volume is 1000 ml, be that 60 ℃, stir speed (S.S.) are under the condition of 100 rpm in normal pressure, temperature of reaction, add alkaline solution with the constant rate of 2 ml/min in the mixing solutions and carry out precipitin reaction, and so that reaction end pH value reaches at 8 o'clock, namely get reacted slip.
Wherein: alkaline solution refers to that the hydroxide ion volumetric molar concentration is the ammoniacal liquor of 2.0 mol/L.
⑶ be transferred to reacted slip in the 2 L autoclaves, is that 180 ℃, stir speed (S.S.) are to react 4h under the condition of 600 rpm at hydrothermal temperature, obtains thick product.
⑷ filter after thick product is cooled to room temperature, and with deionized water wash to filtrate without chlorion till, at 60 ℃ of drying 10 h, namely get the MgFe binary type hydrotalcite of 0.4＜x＜0.5 at last.
Embodiment 3The preparation method of the MgFe binary type hydrotalcite that this iron level is higher may further comprise the steps:
⑴ with the solubility magnesium salts---bischofite, soluble ferric iron salt---, and ferric chloride (FeCl36H2O) is made into the mixing solutions of magnesium ion concentration=0.75 mol/L, iron concentration=0.5 mol/L.
Wherein: Mg in the mixing solutions
2+With Fe
3+Mol ratio=1.5.
⑵ get 400 ml mixing solutionss and join in the there-necked flask that volume is 1000 ml, be that 95 ℃, stir speed (S.S.) are under the condition of 200 rpm in normal pressure, temperature of reaction, add alkaline solution with the constant rate of 2 ml/min in the mixing solutions and carry out precipitin reaction, and so that reaction end pH value reaches at 8.5 o'clock, namely get reacted slip.
Wherein: alkaline solution refers to that volumetric molar concentration is that sodium hydroxide and the volumetric molar concentration of 2.0 mol/L is the sodium carbonate mixture of 1.0mol/L, and the carbanion volumetric molar concentration is Fe in the mixing solutions
3+Between 0.5 times to 2 times of volumetric molar concentration.
⑶ be transferred to reacted slip in the 2 L autoclaves, is that 200 ℃, stir speed (S.S.) are to react 4h under the condition of 600 rpm at hydrothermal temperature, obtains thick product.
⑷ filter after thick product is cooled to room temperature, and with deionized water wash to filtrate without chlorion till, at 100 ℃ of drying 4 h, namely get the MgFe binary type hydrotalcite of 0.4＜x＜0.5 at last.
Embodiment 4The preparation method of the MgFe binary type hydrotalcite that this iron level is higher may further comprise the steps:
⑴ with the solubility magnesium salts---bischofite, soluble ferric iron salt---, and ferric chloride (FeCl36H2O) is made into the mixing solutions of magnesium ion concentration=0.65 mol/L, iron concentration=0.5 mol/L.
Wherein: Mg in the mixing solutions
2+With Fe
3+Mol ratio=1.3.
⑵ get 400 ml mixing solutionss and join in the there-necked flask that volume is 1000 ml, be that 25 ℃, stir speed (S.S.) are under the condition of 600 rpm in normal pressure, temperature of reaction, add alkaline solution with the constant rate of 1ml/min in the mixing solutions and carry out precipitin reaction, and so that reaction end pH value reaches at 9 o'clock, namely get reacted slip.
Wherein: alkaline solution refers to that volumetric molar concentration is that sodium hydroxide and the volumetric molar concentration of 2.0 mol/L is that 0.5 mol/L sodium carbonate mixture carbanion volumetric molar concentration is Fe in the mixing solutions
3+Between 0.5 times to 2 times of volumetric molar concentration.
⑶ be transferred to reacted slip in the 2 L autoclaves, is that 100 ℃, stir speed (S.S.) are to react 6h under the condition of 700 rpm at hydrothermal temperature, obtains thick product.
⑷ filter after thick product is cooled to room temperature, and with deionized water wash to filtrate without chlorion till, at 90 ℃ of drying 5 h, namely get the MgFe binary type hydrotalcite of 0.4＜x＜0.5 at last.
Embodiment 5The preparation method of the MgFe binary type hydrotalcite that this iron level is higher may further comprise the steps:
⑴ with the solubility magnesium salts---bischofite, soluble ferric iron salt---, and ferric chloride (FeCl36H2O) is made into the mixing solutions of magnesium ion concentration=1.0 mol/L, iron concentration=0.75 mol/L.
Wherein: Mg in the mixing solutions
2+With Fe
3+Mol ratio=1.3.
⑵ get 400 ml mixing solutionss and join in the there-necked flask that volume is 1000 ml, be that 85 ℃, stir speed (S.S.) are under the condition of 400 rpm in normal pressure, temperature of reaction, add alkaline solution with the constant rate of 10 ml/min in the mixing solutions and carry out precipitin reaction, and so that reaction end pH value reaches at 9.5 o'clock, namely get reacted slip.
Wherein: alkaline solution refers to that volumetric molar concentration is that sodium hydroxide and the volumetric molar concentration of 1.0 mol/L is 0.5 mol/L sodium carbonate mixture, and the carbanion volumetric molar concentration is Fe in the mixing solutions
3+Between 0.5 times to 2 times of volumetric molar concentration.
⑶ be transferred to reacted slip in the 2 L autoclaves, is that 260 ℃, stir speed (S.S.) are to react 1h under the condition of 200 rpm at hydrothermal temperature, obtains thick product.
⑷ filter after thick product is cooled to room temperature, and with deionized water wash to filtrate without chlorion till, at 70 ℃ of drying 9 h, namely get the MgFe binary type hydrotalcite of 0.4＜x＜0.5 at last.
Embodiment 6The preparation method of the MgFe binary type hydrotalcite that this iron level is higher may further comprise the steps:
⑴ with the solubility magnesium salts---bischofite, soluble ferric iron salt---, and ferric chloride (FeCl36H2O) is made into the mixing solutions of magnesium ion concentration=0.75 mol/L, iron concentration=0.75 mol/L.
Wherein: Mg in the mixing solutions
2+With Fe
3+Mol ratio=1.
⑵ get 400 ml mixing solutionss and join in the there-necked flask that volume is 1000 ml, be that 75 ℃, stir speed (S.S.) are under the condition of 500 rpm in normal pressure, temperature of reaction, add alkaline solution with the constant rate of 5ml/min in the mixing solutions and carry out precipitin reaction, and so that reaction end pH value reaches at 8.5 o'clock, namely get reacted slip.
Wherein: alkaline solution refers to that the hydroxide ion volumetric molar concentration is the sodium hydroxide solution of 1.5 mol/L.
⑶ be transferred to reacted slip in the 2 L autoclaves, is that 220 ℃, stir speed (S.S.) are to react 3h under the condition of 400 rpm at hydrothermal temperature, obtains thick product.
⑷ filter after thick product is cooled to room temperature, and with deionized water wash to filtrate without chlorion till, at 70 ℃ of drying 7 h, namely get the MgFe binary type hydrotalcite of 0.4＜x＜0.5 at last.
Should be appreciated that, embodiment discussed here and embodiment can propose various modifications and variations just in order to illustrate to the people who is familiar with this field, and these improvement and variation will be included in the application's spirit and scope and the appended claim scope.
Claims (4)
1. the MgFe binary type hydrotalcite that iron level is higher, molecular composition are [M (II)
1-xM (III)
x(OH)
2]
X+A
X/n N-MH
2The layered hydroxide of O; Wherein, M (II) is divalent-metal ion Mg
2+, M (III) is trivalent metal ion Fe
3+, A is-negatively charged ion of n, and x is M (III) and the mol ratio of [M (III)+M (II)], and m is the crystallization water yield, it is characterized in that: described Mg
2+With described Fe
3+Mol ratio≤1.5,0.4＜x＜0.5, A is OH
-, CO
3 2-, m=0 ~ 10.
2. the preparation method of the MgFe binary type hydrotalcite that iron level as claimed in claim 1 is higher may further comprise the steps:
⑴ be made into solubility magnesium salts, soluble ferric iron salt the mixing solutions of magnesium ion concentration≤1.5 mol/L, iron concentration≤1.0 mol/L;
⑵ be that 25 ~ 95 ℃, stir speed (S.S.) are under the condition of 100 ~ 600 rpm in normal pressure, temperature of reaction, add alkaline solution with the constant rate of 1 ~ 10 ml/min in the described mixing solutions and carry out precipitin reaction, and so that reaction end pH value between 8 ~ 10, namely gets reacted slip;
⑶ be transferred to described reacted slip in the autoclave, is that 100 ~ 260 ℃, stir speed (S.S.) are to react 1 ~ 6h under the condition of 100 ~ 700 rpm at hydrothermal temperature, obtains thick product;
⑷ filter after described thick product is cooled to room temperature, and with deionized water wash to filtrate without chlorion till, at last at 60 ~ 100 ℃ of drying 4 ~ 10 h, namely get the higher MgFe binary type hydrotalcite of iron level.
3. the preparation method of the MgFe binary type hydrotalcite that iron level as claimed in claim 2 is higher is characterized in that: Mg in the mixing solutions among the described step ⑴
2+With Fe
3+Mol ratio≤1.5.
4. the preparation method of the MgFe binary type hydrotalcite that iron level as claimed in claim 2 is higher is characterized in that: the alkaline solution among the described step ⑵ refers to hydroxide ion volumetric molar concentration≤sodium hydroxide of 2.0 mol/L, ammoniacal liquor; Or the sodium carbonate mixture of the sodium hydroxide of volumetric molar concentration≤2.0 mol/L and volumetric molar concentration≤1.0 mol/L, described carbanion volumetric molar concentration is Fe in the described mixing solutions
3+Between 0.5 times to 2 times of volumetric molar concentration.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186080A (en) * | 2016-07-04 | 2016-12-07 | 沈阳化工大学 | A kind of preparation method of Mg Fe layered double hydroxide |
| CN107858035A (en) * | 2017-11-14 | 2018-03-30 | 上海荣富新型材料有限公司 | A kind of halogen-free flame retardants, its preparation method and the anti-flaming dope with its preparation |
| CN108560299A (en) * | 2018-04-22 | 2018-09-21 | 雷春生 | A kind of preparation method of high retention papermaking filler |
| CN108579658A (en) * | 2018-04-23 | 2018-09-28 | 中国环境科学研究院 | The adsorbent of dichromate ion in a kind of removal waste water |
| CN109529758A (en) * | 2018-12-13 | 2019-03-29 | 东华理工大学 | Mg-Fe double-metal hydroxide adsorbent, preparation method and application |
| CN109734137A (en) * | 2019-02-08 | 2019-05-10 | 桂林理工大学 | A kind of method and application preparing cobalt nickel bimetal hydroxide with glass sample bottle |
| CN113401947A (en) * | 2021-05-14 | 2021-09-17 | 深圳大学 | Modified layered double hydroxide and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171979A (en) * | 1996-07-29 | 1998-02-04 | 德国泰克萨科股份公司 | Process for producing hydrotalcites and their metal oxides |
| CN101321692A (en) * | 2005-12-06 | 2008-12-10 | 阿克佐诺贝尔股份有限公司 | Process for preparing organically modified layered double hydroxide |
| CN102666691A (en) * | 2009-10-15 | 2012-09-12 | 拜尔技术服务有限责任公司 | Composite materials having graphene layers and production and use thereof |
| WO2013060738A1 (en) * | 2011-10-24 | 2013-05-02 | Nice Filler S.R.L. | Process for preparing a polymer composition comprising hydrotalcites intercalated with active molecules, composition thus obtained and shaped articles comprising the same |
-
2013
- 2013-07-22 CN CN201310308039.5A patent/CN103359792B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171979A (en) * | 1996-07-29 | 1998-02-04 | 德国泰克萨科股份公司 | Process for producing hydrotalcites and their metal oxides |
| CN101321692A (en) * | 2005-12-06 | 2008-12-10 | 阿克佐诺贝尔股份有限公司 | Process for preparing organically modified layered double hydroxide |
| CN102666691A (en) * | 2009-10-15 | 2012-09-12 | 拜尔技术服务有限责任公司 | Composite materials having graphene layers and production and use thereof |
| WO2013060738A1 (en) * | 2011-10-24 | 2013-05-02 | Nice Filler S.R.L. | Process for preparing a polymer composition comprising hydrotalcites intercalated with active molecules, composition thus obtained and shaped articles comprising the same |
Non-Patent Citations (2)
| Title |
|---|
| FRANTIŠEK KOVANDA ET AL.: ""Crystallization of synthetic hydrotalcite under hydrothermal conditions"", 《APPLIED CLAY SCIENCE》 * |
| T.HIBINO ET AL.: ""Calcination and rehydration behavior of Mg-Fe-C03 hydrotalcite-like compounds"", 《JOURNAL OF MATERIALS SCIENCE LETTERS》 * |
Cited By (8)
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| CN106186080A (en) * | 2016-07-04 | 2016-12-07 | 沈阳化工大学 | A kind of preparation method of Mg Fe layered double hydroxide |
| CN107858035A (en) * | 2017-11-14 | 2018-03-30 | 上海荣富新型材料有限公司 | A kind of halogen-free flame retardants, its preparation method and the anti-flaming dope with its preparation |
| CN108560299A (en) * | 2018-04-22 | 2018-09-21 | 雷春生 | A kind of preparation method of high retention papermaking filler |
| CN108560299B (en) * | 2018-04-22 | 2020-06-09 | 广东华能特种纸有限公司 | Preparation method of high-retention papermaking filler |
| CN108579658A (en) * | 2018-04-23 | 2018-09-28 | 中国环境科学研究院 | The adsorbent of dichromate ion in a kind of removal waste water |
| CN109529758A (en) * | 2018-12-13 | 2019-03-29 | 东华理工大学 | Mg-Fe double-metal hydroxide adsorbent, preparation method and application |
| CN109734137A (en) * | 2019-02-08 | 2019-05-10 | 桂林理工大学 | A kind of method and application preparing cobalt nickel bimetal hydroxide with glass sample bottle |
| CN113401947A (en) * | 2021-05-14 | 2021-09-17 | 深圳大学 | Modified layered double hydroxide and preparation method and application thereof |
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