CN1073886C - Solid super-strong acid and its prepn. method - Google Patents
Solid super-strong acid and its prepn. method Download PDFInfo
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- CN1073886C CN1073886C CN98100763A CN98100763A CN1073886C CN 1073886 C CN1073886 C CN 1073886C CN 98100763 A CN98100763 A CN 98100763A CN 98100763 A CN98100763 A CN 98100763A CN 1073886 C CN1073886 C CN 1073886C
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- 239000002253 acid Substances 0.000 title claims abstract description 59
- 239000007787 solid Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 22
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 16
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 6
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 230000000737 periodic effect Effects 0.000 claims abstract description 3
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims description 22
- 239000007864 aqueous solution Substances 0.000 claims description 19
- 238000007598 dipping method Methods 0.000 claims description 14
- 230000032683 aging Effects 0.000 claims description 7
- 238000003483 aging Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 6
- 238000006317 isomerization reaction Methods 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000003930 superacid Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 206010013786 Dry skin Diseases 0.000 description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 239000000243 solution Substances 0.000 description 12
- 239000012153 distilled water Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- IVORCBKUUYGUOL-UHFFFAOYSA-N 1-ethynyl-2,4-dimethoxybenzene Chemical compound COC1=CC=C(C#C)C(OC)=C1 IVORCBKUUYGUOL-UHFFFAOYSA-N 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 5
- 229910007740 Zr—F Inorganic materials 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 235000014413 iron hydroxide Nutrition 0.000 description 3
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 101100033673 Mus musculus Ren1 gene Proteins 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明涉及一种NO3 -/金属氧化物体系固体超强酸及其制备方法。该固体超强酸的重量百分组成为：NO3 -＝0.1～10.0%，金属氧化物＝99.9～90.0%；其中金属氧化物为选自元素周期表第ⅡB、ⅣB、ⅤB、ⅥB、ⅦB、Ⅷ族和第ⅢA族中的金属元素的氧化物，其中优选的为Zn、Ti、Zr、V、Cr、Mo、W、Mn、Fe、Co、Ni、Al、Ga等元素的氧化物，特别优选的为Ti、Zr、Fe、V、Cr、Mo、W、Mn和Al的氧化物。本发明所提供的固体超强酸具有比100%硫酸更强的酸性，其酸强度可达-13.16以上，能够使正戊烷进行异构化和裂化反应，并有较高的活性。The invention relates to an NO 3 - /metal oxide system solid superacid and a preparation method thereof. The weight percentage of the solid superacid is: NO 3 - = 0.1-10.0%, metal oxide = 99.9-90.0%; wherein the metal oxide is selected from the periodic table of elements IIB, IVB, VB, VIB, VIIB, VIII Oxides of metal elements in Group III and Group IIIA, among which oxides of Zn, Ti, Zr, V, Cr, Mo, W, Mn, Fe, Co, Ni, Al, Ga and other elements are preferred, especially The most common are oxides of Ti, Zr, Fe, V, Cr, Mo, W, Mn and Al. The solid superacid provided by the invention has stronger acidity than 100% sulfuric acid, and its acid strength can reach above -13.16, can make n-pentane undergo isomerization and cracking reactions, and has high activity.
Description
The present invention relates to a kind of solid super-strong acid and preparation method thereof, specifically is about a kind of NO
3 -/ metal oxide system solid super-strong acid and preparation method thereof.
Super acids is a kind of acid strength (H
0) than 100% sulfuric acid (H
0=-11.94) stronger acid.About room temperature, they just can make the organic hydrocarbon compound carry out reactions such as alkylation, isomerization.The liquid acid that replaces present industrial use with solid super-strong acid is carried out catalytic reaction, can avoid equipment corrosion and environmental pollution, and product is easy to separate with catalyst.Therefore, solid super-strong acid is considered to be in one of rising catalyst of chemical field.
From Hino in 1979 and the synthetic for the first time SO of Arata
4 2-/ ZrO
2Since (M.Hino, K.Arata, J.Am.Chem.Soc., 101 (21), 6439 (1979)), SO
4 2-The research of/oxide type solid super-strong acid is very active, has reported a variety ofly, comprises the SO that contains noble metal
4 2-/ oxide type solid super-strong acid (CN1067393A, CN1093949A, CN1075900A, EP174836, EP653397, EP653398 etc.), also useful WO
3, MoO
3Replace SO
4 2-(catalyst, 1989,31 (6), 477), use B
2O
3Replace SO
4 2-(H.Matsuhash, etc., Stud.Surf.Sci.Catal., 90 (1994) 251) and obtain WO
3/ ZrO
2, MoO
3/ ZrO
2And B
2O
3/ ZrO
2The report of solid super-strong acid.
Known to the inventor, up to the present also there is not NO
3The report of/oxide system solid super-strong acid.
The purpose of this invention is to provide a kind of new solid super-strong acid and preparation method thereof.
It consists of NO solid super-strong acid provided by the present invention
3 -/ metal oxide, its weight percent consists of: NO
3 -=0.1～10.0%, metal oxide=99.9～90.0%; Wherein metal oxide is the oxide that is selected from the metallic element in periodic table of elements II B, IV B, V B, VI B, VII B, VIII family and the group IIIA, the oxide of elements such as Zn, Ti, Zr, V, Cr, Mo, W, Mn, Fe, Co, Ni, Al, Ga preferably wherein, particularly preferred is the oxide of Ti, Zr, Fe, V, Cr, Mo, W, Mn and Al.
One of preparation method of said solid super-strong acid provided by the present invention comprises:
(1). with a kind of concentration of salt of said metal is that the aqueous solution of 1～30 heavy % adds the ammoniacal liquor hydrolysis, obtains precipitation of hydroxide, after ageing, washing, filtration, drying, obtains hydroxide;
(2). with (1) gained hydroxide HNO
3Aqueous solution dipping filters and drying, makes products therefrom contain the NO of 0.1～10 heavy % by butt
3 -
(3). with (2) products therefrom in 500～1000 ℃ of roastings 1～4 hour.
The salt of said metal is water-soluble any salt among one of preparation method of solid super-strong acid provided by the present invention.
Can also comprise among one of preparation method of solid super-strong acid provided by the present invention that the said step of repetition (2) is to improve NO
3 -Load capacity.
The preparation method's of said solid super-strong acid provided by the present invention two comprises:
(1). the nitrate of said metal or carbonate are added thermal decomposition obtain corresponding metal oxide;
(2). with (1) gained oxide HNO
3Aqueous solution dipping filters and drying, makes products therefrom contain the NO of 0.1～10 heavy % by butt
3 -
(3). with (2) products therefrom in 500～1000 ℃ of roastings 1～4 hour.
The preparation method of said solid super-strong acid provided by the present invention two in can also comprise that the said step of repetition (2) is to improve NO
3 -Load capacity.
The preparation method's of solid super-strong acid provided by the present invention three comprises:
(1). with commercially available said metal oxide HNO
3Aqueous solution dipping filters and drying, makes products therefrom contain the NO of 0.1～10 heavy % by butt
3 -
(2). with (1) products therefrom in 500～1000 ℃ of roastings 1～4 hour.
The preparation method of said solid super-strong acid provided by the present invention three in can also comprise that the said step of repetition (1) is to improve NO
3 -Load capacity.
NO provided by the present invention
3 -/ oxide system solid super-strong acid has than 100% sulfuric acid (H
0=-11.94) stronger acidity, its acid strength can reach-and more than 13.16, can make pentane carry out isomerization and cracking reaction, and higher activity is arranged.The present invention provides a kind of new kind for solid super-strong acid.
The following examples will the present invention is described further.
Embodiment 1～3
With 40g ZrOCl
28H
2O (Beijing Chemical Plant, analyze pure, down with) be dissolved in the 400mL distilled water, be stirred to solution limpid fully after, to gained ZrOCl
2Dropping ammonia in the aqueous solution (concentration is 25～28%, and Beijing Yili Fine Chemicals Co., Ltd. produces, and analyzes pure, together following) is until solution PH=9.Stop to stir, still aging 24 hours of room temperature is washed with distilled water to no Cl then
-Ion filters, in 100 ℃ of dryings 12 hours, below porphyrize to 100 order, zirconium hydroxide.With this zirconium hydroxide 2MHNO
3Dipping (10mL/g zirconium hydroxide) 1 hour under the aqueous solution room temperature filters, in 100 ℃ of dryings 12 hours, NO
3 -/ zirconium hydroxide is divided equally into three parts with it, respectively 700 ℃, 750 ℃, 800 ℃ roastings 3 hours, gets NO
3 -/ ZrO
2Solid super-strong acid Zr-A, Zr-B, Zr-C.
Embodiment 4～6
With 40g ZrOCl
28H
2O is dissolved in the 400mL distilled water, makes zirconium hydroxide by the same procedure among the embodiment 1～3, and it is divided equally into three parts, uses the HNO of 1M, 4M and dense (65 heavy %) respectively
3Aqueous solution room temperature dipping (10mL/g zirconium hydroxide) 1 hour filters, in 100 ℃ of dryings 12 hours, and 750 ℃ of roastings 3 hours, respectively NO
3 -/ ZrO
2Solid super-strong acid Zr-D, Zr-E, Zr-F.
Embodiment 7
According to the method among the embodiment 1, with 10g ZrOCl
28H
2O is dissolved in the 100mL distilled water, stirs dropping ammonia down, and until solution PH=8, ageing 48 hours is washed to no Cl
-, 100 ℃ of dryings 12 hours, porphyrize is used 2M HNO
3Aqueous solution dipping (10mL/g) 1 hour filters, 100 ℃ of dryings 8 hours, 750 ℃ of roastings 3 hours, NO
3 -/ ZrO
2Solid super-strong acid Zr-G.
Embodiment 8
Same procedure by embodiment 7 makes NO
3 -/ ZrO
2Solid super-strong acid Zr-H, different is that dropping ammonia is to solution PH=10.
Embodiment 9
With 50g Fe (NO
3)
39H
2O is dissolved in the 500mL distilled water, be stirred to solution fully limpid after, stop to stir until solution PH=8 to dropping ammonia wherein, room temperature ageing 24 hours is filtered, in 100 ℃ of dryings 12 hours, porphyrize, iron hydroxide, it is used 2M HNO
3Aqueous solution room temperature dipping (10mL/g iron hydroxide) 1 hour filters, 100 ℃ of dryings 12 hours, NO
3 -/ iron hydroxide 600 ℃ of roastings 2 hours, gets NO with it
3 -/ Fe
2O
3Solid super-strong acid Fe-A.
Embodiment 10
With 25g Fe (NO
3)
39H
2O gets Fe 200 ℃ of roastings 5 hours
2O
3It is used 2M HNO
3Aqueous solution dipping (10mL/g) 1 hour filters, 100 ℃ of dryings 10 hours, NO
3 -/ Fe
2O
3, it 600 ℃ of roastings 3 hours, is got NO
3 -/ Fe
2O
3Solid super-strong acid Fe-B.
Embodiment 11
Stir down 50gTiCl
4(connection chemical reagent factory in the Chaoyang District, Beijing City, chemical pure) slowly joining the 500mL temperature is in 0 ℃ the distilled water, get milky white liquid, room temperature leaves standstill and made the solution clarification in 12 hours, stir dropping ammonia in this clarified solution down,, stop to stir until solution PH=8, room temperature ageing 24 hours is washed to no Cl
-Ion filters, 100 ℃ of dryings 12 hours, porphyrize, titanium hydroxide 20g, get this titanium hydroxide of 10g (residue 10g stays embodiment 12～13 usefulness) and use 2M HNO
3Aqueous solution room temperature dipping (10mL/g titanium hydroxide) 1 hour filters, 100 ℃ of dryings 12 hours, with it 650 ℃ of roastings 2 hours, NO
3 -/ TiO
2Solid super-strong acid Ti-A.
Embodiment 12～13
With remaining 10g titanium hydroxide 1M HNO among the embodiment 11
3Aqueous solution dipping (10mL/g titanium hydroxide) 1 hour filters, and 100 ℃ of dryings 12 hours are divided equally into two parts with it, respectively 650 ℃, 700 ℃ roastings 3 hours, NO
3 -/ TiO
2Solid super-strong acid Ti-B, Ti-C.
Embodiment 14
With 10g γ-Al
2O
3(Chang Ling oil-refining chemical factory catalyst plant is produced, down together) is put in the beaker, to wherein adding 100mL0.5M HNO
3The aqueous solution filters, 100 ℃ of dryings 12 hours, with it 900 ℃ of roastings 2 hours, NO
3 -/ Al
2O
3Solid super-strong acid Al-A.
Embodiment 15～16
With each 5g γ-Al
2O
3Be put in the beaker, add 50mL1M, 4M HNO respectively
3The aqueous solution filters, and 100 ℃ in dry 8 hours, 900 ℃ of roastings 2 hours, makes NO then
3 -/ Al
2O
3Solid super-strong acid Al-B, Al-C.
Embodiment 17
With 20g Cr (NO
3)
39H
2O (analyze pure, Beijing Chemical Plant) is dissolved in the 200mL distilled water, and it is limpid fully to be stirred to solution, then to slow dropping ammonia wherein, up to the solution pH value is 9, and the room temperature ageing was washed, filtered after 24 hours, and in 100 ℃ of dryings 12 hours, porphyrize was then with the HNO of products therefrom with 1M
3Aqueous solution room temperature dipping (10mL/g) 1 hour filters, 100 ℃ of dryings 12 hours, and, make NO 650 ℃ of roastings 3 hours
3 -/ Cr
2O
3Solid super-strong acid Cr-A.
Embodiment 18
With 20g Mn (NO
3)
26H
2O (analyze pure, Beijing Chemical Plant) is dissolved in the 200mL distilled water, makes NO by the same procedure of embodiment 21
3 -/ MnO solid super-strong acid Mn-A.
Embodiment 19
With 20gNH
4VO
3(analyze pure, Li Jiadian chemical plant, Beijing) is dissolved in the 200mL distilled water, makes NO by the same procedure of embodiment 21
3 -/ V
2O
5Solid super-strong acid V-A.
Embodiment 20
Present embodiment illustrates the acid strength of solid super-strong acid provided by the invention.
With the NO that makes in the above-mentioned example 1～19
3 -Acid strength H is carried out in the acid of/oxide solid super
0Measure.Assay method is as follows:
The sample that firm roasting is good is put into measuring cup, and lid is tight, and it is cool to put into drier, takes out about 0.5g and puts on the little surface plate, uses the indicator corresponding to different acid strengths to drip on sample, observation sample change color situation.If corresponding to the indicator generation change color of a certain acid strength, show that then sample has this acid strength.Indicator is to be the corresponding solution of 0.3 heavy % of solvent preparation with dried cyclohexane.Table 1 is the acid strength (H of sample
0) measurement result.Table 1 result shows that solid super-strong acid provided by the invention has and is better than-13.16 acid strength.
Table 1.
Annotate :+: indicator discoloration
| Sample | -11.99 | -12.70 | -13.16 | -13.76 |
| Zr-A | + | + | + | + |
| Zr-B | + | + | + | + |
| Zr-C | + | + | + | + |
| Zr-D | + | + | + | ± |
| Zr-E | + | + | + | + |
| Zr-F | + | + | + | + |
| Zr-G | + | + | + | + |
| Zr-H | + | + | + | - |
| Al-A | + | + | + | + |
| Al-B | + | + | + | ± |
| Al-C | + | + | + | + |
| Fe-A～B | Sample is a rust, can't measure | |||
| Ti-A～C | It is faint yellow that sample is, and is difficult for judging | |||
| Cr-A | Sample is yellow, is difficult for judging | |||
| Mn-A | It is dark that sample is, and can't measure | |||
| V-A | It is faint yellow that sample is, and is difficult for judging | |||
-: the indicator nondiscolouring
±: indicator has variable color slightly, but not obvious
Embodiment 21
Present embodiment illustrates the n-pentane reaction performance of solid super-strong acid provided by the invention.
The solid super-strong acid of above-mentioned example 1～19 preparation is carried out n-pentane isomerization and cracking reaction.Reaction method is a static little reactor of the 0.5g sample being put into about 3mL, injects 5 μ L pentanes, leaves standstill reaction at 40 ℃, after certain reaction time, takes out product and analyzes with chromatogram.Table 2 has been listed the n-pentane reaction situation of each sample.
Embodiment 22
Present embodiment illustrates the NO of solid super-strong acid provided by the invention
3 -Content data.
The solid super-strong acid of above-mentioned example 1～19 preparation is carried out the N analysis on Content, and calculate NO
3 -Content.The N analysis on Content is analyzed with REN-1 type apparatus for nitrogen examination.Table 3 has been listed the N and the NO of each sample
3 -Content.
Table 2.
| Sample | Reaction time (h) | Conversion ratio (%) | Product distribution (%) | |
| Cracking | Isomerization | |||
| Zr-A | 47 | 9.65 | 5.51 | 4.14 |
| Zr-B | 47 | 31.72 | 24.38 | 7.34 |
| Zr-C | 46 | 19.73 | 13.97 | 5.76 |
| Zr-D | 48 | 8.16 | 4.00 | 4.16 |
| Zr-E | 48 | 11.03 | 5.83 | 5.20 |
| Zr-F | 48 | 10.80 | 5.66 | 5.14 |
| Zr-G | 50 | 26.13 | 17.60 | 8.53 |
| Zr-H | 50 | 17.33 | 12.91 | 4.42 |
| Ti-A | 51 | 7.90 | 3.78 | 4.12 |
| Ti-B | 51 | 10.01 | 5.60 | 4.41 |
| Ti-C | 51 | 5.36 | 3.37 | 1.99 |
| Fe-A | 43 | 9.73 | 4.01 | 5.27 |
| Fe-B | 46 | 5.95 | 3.66 | 2.29 |
| Al-A | 48 | 5.65 | 2.28 | 3.37 |
| Al-B | 47 | 6.77 | 2.03 | 4.74 |
| Al-C | 47 | 6.16 | 2.19 | 3.97 |
| Cr-A | 52 | 11.45 | 6.91 | 4.54 |
| Mn-A | 52 | 9.44 | 5.37 | 4.07 |
| V-A | 51 | 11.21 | 6.53 | 4.68 |
Table 3.
| Sample | N content (W%) | NO 3 -Content (W%) |
| Zr-A | 0.57 | 2.52 |
| Zr-B | 0.42 | 1.86 |
| Zr-C | 0.30 | 1.33 |
| Zr-D | 0.35 | 1.55 |
| Zr-E | 0.59 | 2.61 |
| Zr-F | 1.03 | 4.51 |
| Zr-G | 0.55 | 2.44 |
| Zr-H | 0.58 | 2.57 |
| Ti-A | 0.86 | 3.81 |
| Ti-B | 1.01 | 4.47 |
| Ti-C | 0.87 | 3.85 |
| Fe-A | 0.75 | 3.32 |
| Fe-B | 0.42 | 1.86 |
| Al-A | 0.21 | 0.93 |
| Al-B | 0.25 | 1.11 |
| Al-C | 0.37 | 1.64 |
| Cr-A | 0.73 | 3.23 |
| Mn-A | 0.70 | 3.10 |
| V-A | 0.76 | 3.37 |
Claims (10)
1. a solid super-strong acid is characterized in that it consists of NO
3 -/ metal oxide, its weight percent consists of: NO
3 -=0.1～10.0%, metal oxide=99.9～90.0%; Wherein metal oxide is the oxide that is selected from the metallic element in periodic table of elements II B, IV B, V B, VI B, VII B, VIII family and the group IIIA.
2. according to the solid super-strong acid of claim 1, wherein said metal oxide is the oxide of Zn, Ti, Zr, V, Cr, Mo, W, Mn, Fe, Co, Ni, Al or Ga.
3. according to the solid super-strong acid of claim 1, wherein said metal oxide is the oxide of Ti, Zr, Fe, V, Cr, Mo, W, Mn or Al.
4. the preparation method of the described solid super-strong acid of claim 1 is characterized in that this method comprises:
(1). with a kind of concentration of salt of said metal is that the aqueous solution of 1～30 heavy % adds the ammoniacal liquor hydrolysis, obtains precipitation of hydroxide, after ageing, washing, filtration, drying, obtains hydroxide;
(2). with (1) gained hydroxide HNO
3Aqueous solution dipping filters and drying, makes products therefrom contain the NO of 0.1～10 heavy % by butt
3 -
(3). with (2) products therefrom in 500～1000 ℃ of roastings 1～4 hour.
5. according to the preparation method of claim 4, wherein the salt of said metal is water-soluble salt.
6. according to the preparation method of claim 4, comprise also that wherein the said step of repetition (2) is to improve NO
3 -Load capacity.
7. the preparation method of the described solid super-strong acid of claim 1 is characterized in that this method comprises:
(1). the nitrate of said metal or carbonate are added thermal decomposition obtain corresponding metal oxide;
(2). with (1) gained oxide HNO
3Aqueous solution dipping filters and drying, makes products therefrom contain the NO of 0.1～10 heavy % by butt
3 -
(3). with (2) products therefrom in 500～1000 ℃ of roastings 1～4 hour.
8. according to the preparation method of claim 7, comprise also that wherein the said step of repetition (2) is to improve NO
3 -Load capacity.
9. the preparation method of the described solid super-strong acid of claim 1 is characterized in that this method comprises:
(1). with commercially available said metal oxide HNO
3Aqueous solution dipping filters and drying, makes products therefrom contain the NO of 0.1～10 heavy % by butt
3 -
(2). with (1) products therefrom in 500～1000 ℃ of roastings 1～4 hour.
10. according to the preparation method of claim 9, comprise also that wherein the said step of repetition (2) is to improve NO
3 -Load capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100763A CN1073886C (en) | 1998-03-20 | 1998-03-20 | Solid super-strong acid and its prepn. method |
Applications Claiming Priority (1)
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| CN98100763A CN1073886C (en) | 1998-03-20 | 1998-03-20 | Solid super-strong acid and its prepn. method |
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| CN1073886C true CN1073886C (en) | 2001-10-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651118B (en) * | 1996-06-05 | 2010-05-26 | 世嘉股份有限公司 | Image processing device for games |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327960C (en) * | 2003-09-28 | 2007-07-25 | 中国石油化工股份有限公司 | Method for preparing solid super strong acid in NO3/metallic oxide system |
| CN103055912B (en) * | 2011-10-18 | 2015-07-29 | 中国石油化工股份有限公司 | Solid superacid bifunctional catalyst and preparation method thereof |
| CN103059911B (en) * | 2011-10-18 | 2015-03-18 | 中国石油化工股份有限公司 | Isomerization reaction method of straight-chain paraffin |
| CN112007665B (en) * | 2019-11-22 | 2023-08-04 | 南京林业大学 | A kind of highly active sulfuric acid-promoted solid super strong compound acid and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945391A (en) * | 1982-09-07 | 1984-03-14 | Nippon Mining Co Ltd | Purification of slack wax |
| CN1093949A (en) * | 1993-04-23 | 1994-10-26 | 中国石油化工总公司 | Noble metal/zirconia/S0 42-The preparation method of system super acids |
| JPH0769955A (en) * | 1993-08-27 | 1995-03-14 | Inoue Koryo Seizosho:Kk | Production method of acetal |
| JPH1175946A (en) * | 1997-09-09 | 1999-03-23 | Takahashi Kanamono Corp | Attaching structure for shelf |
-
1998
- 1998-03-20 CN CN98100763A patent/CN1073886C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945391A (en) * | 1982-09-07 | 1984-03-14 | Nippon Mining Co Ltd | Purification of slack wax |
| CN1093949A (en) * | 1993-04-23 | 1994-10-26 | 中国石油化工总公司 | Noble metal/zirconia/S0 42-The preparation method of system super acids |
| JPH0769955A (en) * | 1993-08-27 | 1995-03-14 | Inoue Koryo Seizosho:Kk | Production method of acetal |
| JPH1175946A (en) * | 1997-09-09 | 1999-03-23 | Takahashi Kanamono Corp | Attaching structure for shelf |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651118B (en) * | 1996-06-05 | 2010-05-26 | 世嘉股份有限公司 | Image processing device for games |
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| CN1229695A (en) | 1999-09-29 |
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