CN102000595A - Preparation method of organic phase of vanadium-phosphorus-oxide catalysts and application thereof in preparing maleic anhydride by using furfuraldehyde - Google Patents
Preparation method of organic phase of vanadium-phosphorus-oxide catalysts and application thereof in preparing maleic anhydride by using furfuraldehyde Download PDFInfo
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Abstract
The invention discloses a preparation method of the organic phase of vanadium-phosphorus-oxide catalysts and application thereof in preparing maleic anhydride by using furfuraldehyde, belonging to the field of organic chemical industry catalysts. The preparation method is as follows: V2O5-P2O5 is taken as main body, alcohol is taken as solvent and reducing agent in the preparation process so as to increase the specific surface area of the catalyst; a third component having obvious assist catalytic effect is added, and silica sol is taken as molding adhesive; and the components are put in a self-control molding device for molding and the components after molding is subject to high-temperature calcination to obtain the catalysts with high activity, high selectivity and high yield. The evaluate result of the catalysts in a fixed bed reactor is as follows: the mol yield of the maleic anhydride is 60-70%, the furfuraldehyde percent conversion is 90-98% and the selectivity is 66-78%.
Description
Technical field
The invention belongs to organic chemical industry's catalyst field, relate in particular to a kind of Catalysts and its preparation method of preparing maleic anhydride from furfuraldehyde through catalytic oxidation.
Background technology
As everyone knows, maleic anhydride (abbreviation cis-butenedioic anhydride) is important Organic Chemicals, has become the third-largest acid anhydrides that is only second to aceticanhydride and phthalic anhydride in the world.Be widely used in industry such as unsaturated polyester resin, coating, food, agricultural chemicals, medicine, weaving at present, market is growing to the demand of cis-butenedioic anhydride, and the output of China's cis-butenedioic anhydride is also increasing rapidly in recent years.
At present, the industrial method of production cis-butenedioic anhydride mainly contains benzene oxidizing process, n butane oxidation method, C
4Four kinds of olefin processes and phthalic anhydride by-product methods, wherein benzene oxidizing process and n butane oxidation method are used comparatively extensive.
The raw materials used benzene of benzene oxidizing process is noxious material, and its volatility is big, is exposed to be easy to diffusion in the air.Humans and animals sucks or the skin contact produces the paralysis effect to central nervous system, causes acute poisoning.Two carbon atoms are consumed and are oxidized to carbon dioxide on the phenyl ring simultaneously, cause the utilization rate of benzene to reduce, and the washing that this method post processing need be a large amount of, produce a large amount of industrial wastewaters, and environmental pollution is more serious.Compare with the benzene method preparing cis-anhydride by n-butane oxidation environmental pollution relative light, toxicity is less, but the selectivity of this route system cis-butenedioic anhydride and reaction rate are lower than benzene oxidizing process.Meanwhile; above-mentioned two kinds of raw materials come from non-renewable resources such as oil, coal, natural gas; especially for petroleum resources; reserves are limited, make market supply and demand unbalance, and skyrocketing of oil price causes the production cost of cis-butenedioic anhydride to sharp rise; suitability for industrialized production faces a crisis; therefore seek the alternative materials of producing cis-butenedioic anhydride, reduce production costs, it is extremely urgent to set up new reaction scheme.
Furfural is a kind of industrial chemicals cheap and easy to get, can be made by renewable resources such as oat shell, corncob, cotton seed hull, rice husk, peanut shell, buckwheat shell, cornstalk and wheat straws.Furfural derives from agricultural byproducts, is a kind of green chemical industry raw material, and its effective utilization not only can reduce the dependence to petroleum resources, and can utilize agricultural wastes fully, reduces environmental pollution, increases additional value of farm products.
The benzene oxidizing process is the technology of the system cis-butenedioic anhydride developed the earliest, and all very ripe on Preparation of catalysts both at home and abroad, it adopts V usually
2O
5-MO
3Be main body, add an amount of P of people
2O
5, Na
2O, K
2O and TiO
2Deng co-catalyst, with the a-Al of low surface area
2O
3, SiC and TiO
2Deng being carrier.The catalyst that n butane oxidation prepares cis-butenedioic anhydride mainly contains that vanadium phosphorus oxygen (V-P-O) is, vanadium molybdenum oxygen (V-Mo-O) is and molybdenum phosphorus oxygen (Mo-P-O) is [Changjiang University's journal (from section's version), 2006,3(2), 33-37].
Catalyst about preparing maleic anhydride from furfuraldehyde through catalytic oxidation at home and abroad there is no very ripe preparation technology.In early days several pieces of reports about the furfural preparing cis-butenedioic anhydride by oxidation [U.S.Patent, 2,421,428 (1944), U.S.Patent, 2,464,825 (1949)] are arranged abroad, people such as author Eric R. are with V
2O
5-MoO
3As major catalyst, use 8-16 purpose porcelain system carrier, yield is about 60%.External early stage report also has [M.tarvida, S.Hillers, P.Kalnins (1952)] with V
2O
5-MoO
3Be major catalyst, add Co
2O
3, B
2O
3Deng auxiliary agent, be the catalyst of preparing carriers with float stone and aluminium; This catalyst stability is relatively poor.China's the seventies in last century six has several pieces of reports about furfuraldehyde through catalytic oxidation system cis-butenedioic anhydride.Heavily organic synthesis specialty maleic anhydride group [Dalian Polytechnic College academic periodical, 1958(3), 49-61] is the V of carrier with the cylindricality aluminum shot
2O
5-MoO
3-Fe
2O
3-P
2O
5Catalyst has carried out fixed bed furfural preparing cis-butenedioic anhydride by oxidation, and yield is about 60%.Wenzhou is baked Jiao Chang [petrochemical industry, 1970(2), 63-67] and is adopted V
2O
5-P
2O
5-TiO
2Being main body, is carrier with silica gel, and yield is about 55%.Report also has the catalyst of the few big grade of king [chemical industry progress, 2009,28 (6), 741-745] research in the recent period, with V
2O
5-MoO
3Be main body, use the bar shaped aluminium oxide to be carrier, the highest yield is about 50%.More than Yan Jiu catalyst all adopts the water immersion process for preparing, is solvent with water, is reducing agent with oxalic acid, hydrochloric acid, oxammonium hydrochloride etc., obtains the solution of homogeneous stability, then carrier is put into the solution dipping and obtains desired catalyst.
Summary of the invention
The objective of the invention is to adopt the organic facies legal system to be equipped with vpo catalyst, be used for preparing maleic anhydride from furfuraldehyde through catalytic oxidation.Main feature is to adopt the preparation of organic facies method, with V
2O
5-P
2O
5Be major catalyst.And report that before the catalyst that the furfural oxidation prepares cis-butenedioic anhydride all is to adopt the water immersion process for preparing, with water is solvent, with oxalic acid, hydrochloric acid, oxammonium hydrochloride etc. is reducing agent, obtains the solution of homogeneous stability, then carrier is put into the solution dipping and obtains desired catalyst.The present invention adopts organic matter to make solvent and reducing agent, such as alcohols, aldehydes, ester class etc.Investigate to find that alcohols makes solvent and reducing agent better effects if, especially with phenmethylol make solvent, isobutanol is made the reducing agent best results.Adopt the specific surface area of catalyst of organic facies method preparation bigger, can improve the yield of catalyst.The present invention adds a kind of the 3rd component co-catalyst in preparation process, with further raising activity of such catalysts and selectivity, the 3rd component co-catalyst can be selected a kind of from transition metal element compounds such as Mo, Co, Ni, Cu, Fe or their mixture, and these metallic compounds can be oxide or chloride or sulfate or nitrate or carbonate etc.Obtain precipitated product after the reaction of each component raw material among the present invention, through wash, filter, dry, grind the catalyst substrates powder, mix with catalyst carrier again.Catalyst carrier can be selected from SiO 2 powder, titania powder, attapulgite, and is best with the SiO 2 powder effect, and extrusion modling makes as adhesive to add Ludox then.
The concrete preparation technology of catalyst of the present invention is as follows:
1, the preparation of catalyst substrates powder: with the V of 1 part of quality
2O
5Add in the container, the different organic matters that add 1.0～3.0 parts of quality are respectively made solvent and reducing agent, be heated to 115 ± 5 ℃, reacted 6～7 hours, drip the phosphoric acid of 0.5～2.5 part of quality then, continue reaction 6～7 hours, add the 3rd component co-catalyst of 0.01～0.2 part of quality then, a kind of or its mixture in the compound that wherein said the 3rd component is transition metals such as Mo, Co, Ni, Cu, Fe; Continue reaction 2～3 hours; With the solution cool to room temperature, by absolute ethanol washing, filtration 4～5 times, then filter cake is ground after 2～3 hours 110 ℃ of dryings again, obtain the catalyst substrates powder; Atomic ratio in the matrix powder between each component is V:P:M=1:(0.5～2.5): (0.01～0.20), wherein M represents the metallic element of the 3rd component; Preferred vanadium phosphorus atoms is than being V:P=1:1.65; The metallic compound of wherein said the 3rd component can be its oxide, chloride, sulfate, nitrate or carbonate etc., the compound of preferred Mo element, and preferred atomic ratio is V:Mo=1:0.04; The wherein said organic matter of making solvent and reducing agent can be alcohols, aldehydes, ester class etc.
2, the moulding of catalyst and activation: get the matrix powder of 1 part of quality in the above-mentioned matrix powder that makes, the SiO 2 powder that adds 0.1～2.5 part of quality is made catalyst carrier; The Ludox that adds 0.2～3.0 part of quality is made catalyst binder, and catalyst strength is increased; Stir then, put into the self-control shaped device and be extruded into bar shaped, drying is 2～3 hours under 120 ℃, is cut to diameter 2～3mm, the roundlet cylindrical particle of high 3～4mm; Put into Muffle furnace then and obtain required catalyst, specific area 100～150m after 30 ± 10 hours in calcining under 450 ± 50 ℃
2/ g.
Vpo catalyst of the present invention, in the application of preparing maleic anhydride from furfuraldehyde through catalytic oxidation: will above the catalyst that makes place the fixed-bed micro-reactor device, feed furfural and Air mixing gas and react and produces cis-butenedioic anhydride; Its reaction condition is as follows: air speed is 1500～2500h
-1, furfural concentration is 0.76%～1.44%(volume), catalyst loading is 69.6g/h/L～174.0 g/h/L.
Advantage of the present invention is to adopt a kind of furfuraldehyde through catalytic oxidation Preparation of catalysts method before that is different from, and by the preparation of organic facies method, makes solvent and reducing agent with organic matter, and the specific surface area of catalyst of this method preparation is big, thereby has improved the yield of catalyst.This catalyst is with V simultaneously
2O
5-P
2O
5Be major catalyst, the catalyst of preparing maleic anhydride from furfuraldehyde through catalytic oxidation is many with V before
2O
5-MoO
3Be main body, the catalyst yield is lower.This evaluating catalyst result of the test, cis-butenedioic anhydride molar yield 65%～85%, furfural conversion ratio are 90%～98%, selectivity 70%～89%.This catalyst ratio yield of the catalyst of preparing maleic anhydride from furfuraldehyde through catalytic oxidation before exceeds a lot, and preparing maleic anhydride from furfuraldehyde through catalytic oxidation is the production route of a kind of green, environmental protection, sustainable development simultaneously.Therefore be used for preparing maleic anhydride from furfuraldehyde through catalytic oxidation with this catalyst has application prospect very much.
The specific embodiment
For furfural preparing cis-butenedioic anhydride by oxidation Preparation of catalysts method of the present invention and effect thereof are described better, provide some embodiment below.The fixed-bed micro-reactor device that the present invention uses is for being stainless steel reactor ￠ 25 * 3mm, long 500mm.The catalyst charge weitght is 15～40g, and the loading height in reactor is 8～25cm.
The Ludox that uses among the present invention is available from the special silicon of the excellent gold of Shandong Zibo Products Co., Ltd, and wherein silica quality content is 30%.
Embodiment 1
Take by weighing 20gV
2O
5Add the there-necked flask of 500mL, add 41.8g phenmethylol and 32.0g isobutanol again, wherein phenmethylol is made solvent, and isobutanol is made reducing agent, is stirred and heated to reflux temperature (about 115 ℃), continues heating 6 hours; Dropwise 35 .4g phosphoric acid (quality is a content 85%, down together) continues reaction 6 hours then.In solution, add the 1.6g nickel nitrate, continue reaction 2 hours, stop heating.With the solution cool to room temperature, by absolute ethanol washing, filtration 5 times, then filter cake is ground after 2 hours 110 ℃ of dryings again, obtain the catalyst substrates powder.Get 23g catalyst substrates powder and SiO 2 powder and mix, add the 40.9g Ludox then, stir according to the weight ratio of 1:1, put into the self-control shaped device and be extruded into strip, descended dry 2 hours at 120 ℃ then, be cut to diameter 2.5mm, the roundlet cylindrical particle of high 4mm.Calcined 20 hours down at 450 ℃ then, obtain required catalyst.
Get the 35g catalyst, place internal diameter to be 25mm, highly to carry out catalytic performance test for the fixed bed reactors of 500mm.The evaluating catalyst condition is: reaction temperature is 370～380 ℃, and unstripped gas furfural concentration is 0.95% (volume), and air speed is 2000h
-1, the cis-butenedioic anhydride molar yield under this condition is 79.4%, conversion ratio is 90.2%.Catalyst specific surface is 136.5 m
2/ g.
Comparative Examples 1
According to the research [chemical industry progress, 2009,28 (6), 741-745] of Wang Shaomang etc., with V
2O
5-MoO
3Be main body, use the bar shaped aluminium oxide to be the preparing carriers catalyst.13.1g oxalic acid is added heating for dissolving in the 20g deionized water, do not produce reacting in the oxalic acid solution above the adding of 8.5g ammonium metavanadate to there being bubble, react and obtain homogeneous stability solution to wherein adding 2.0g ammonium heptamolybdate and 0.3g phosphoric acid again, 20g bar shaped alumina support be impregnated in the above-mentioned solution, solid material room temperature after draining is dried, 120 ℃ of dry 2h, 500 ℃ of roasting 20h obtain required catalyst.
Get the 35g catalyst, place internal diameter to be 25mm, highly to carry out catalytic performance test for the fixed bed reactors of 500mm.The evaluating catalyst condition is: reaction temperature is 370～380 ℃, and unstripped gas furfural concentration is 0.95% (volume), and air speed is 2000h
-1, the cis-butenedioic anhydride molar yield under this condition is 51.2%, conversion ratio is 82.1%.Catalyst specific surface is 72.1m
2/ g.
Embodiment 2
Experimental provision, method of operating, feeding quantity and reaction condition do not add the 3rd component co-catalyst nickel nitrate with embodiment 1, and evaluation result is 74.9% for the cis-butenedioic anhydride molar yield, and conversion ratio is 94.7%.Catalyst specific surface is 129.4 m
2/ g
Embodiment 3
Experimental provision, method of operating, feeding quantity and reaction condition replace the 1.6g nickel nitrate with embodiment 1 with the 1.6g ammonium molybdate, and evaluation result is 84.5% for the cis-butenedioic anhydride molar yield, and conversion ratio is 96.2%.Catalyst specific surface is 147.4 m
2/ g.
Embodiment 4
Take by weighing 18gV
2O
5Add the there-necked flask of 500mL, add 43.8g ethanol and 32.0g hutanal again, wherein ethanol is made solvent, and hutanal is made reducing agent, is stirred and heated to reflux temperature (about 115 ℃), continues heating 6 hours; Drip 31.8g phosphoric acid then, continue reaction 6 hours.In solution, add 1.6g nickel nitrate and 1.6g ammonium molybdate, continue reaction 2 hours, stop heating.With the solution cool to room temperature, by absolute ethanol washing, filtration 5 times, then filter cake is ground after 2 hours 110 ℃ of dryings again, obtain the catalyst substrates powder.Get 19g catalyst substrates powder and SiO 2 powder and mix, add the 33.8g Ludox then, stir according to the weight ratio of 1:1, put into the self-control shaped device and be extruded into strip, descended dry 2 hours at 120 ℃ then, be cut to diameter 2.5mm, the roundlet cylindrical particle of high 4mm.Calcined 20 hours down at 450 ℃ then, obtain required catalyst.
Get the 35g catalyst, place internal diameter to be 25mm, highly to carry out catalytic performance test for the fixed bed reactors of 500mm.The evaluating catalyst condition is: reaction temperature is 370～380 ℃, and unstripped gas furfural concentration is 1.0% (volume), and air speed is 1900h
-1, the cis-butenedioic anhydride molar yield under this condition is 73.5%, conversion ratio is 92.5%.Catalyst specific surface is 124.4 m
2/ g.
Embodiment 5
Take by weighing 20gV
2O
5Add the there-necked flask of 500mL, add 42.0g benzaldehyde and 32.1g isopropyl alcohol again, wherein benzaldehyde is made solvent, and isopropyl alcohol is made reducing agent, is stirred and heated to reflux temperature (about 115 ℃) then, continues heating 6 hours; Dropwise 35 .4g phosphoric acid continues reaction 6 hours then.In solution, add the 1.6g ammonium molybdate, continue reaction 2 hours, stop heating.With the solution cool to room temperature, by absolute ethanol washing, filtration 5 times, then filter cake is ground after 2 hours 110 ℃ of dryings again, obtain the catalyst substrates powder.Get 23g catalyst substrates powder and SiO 2 powder and mix, add the 40.9g Ludox then, stir according to the weight ratio of 1:1, put into the self-control shaped device and be extruded into strip, descended dry 2 hours at 120 ℃ then, be cut to diameter 2.5mm, the roundlet cylindrical particle of high 4mm.Calcined 20 hours down at 450 ℃ then, obtain required catalyst.
Get the 35g catalyst, place internal diameter to be 25mm, highly to carry out catalytic performance test for the fixed bed reactors of 500mm.The evaluating catalyst condition is: reaction temperature is 370～380 ℃, and unstripped gas furfural concentration is 0.95% (volume), and air speed is 2000h
-1, the cis-butenedioic anhydride molar yield under this condition is 71.4%, conversion ratio is 90.2%.Catalyst specific surface is 116.5 m
2/ g.
Embodiment 6
Take by weighing 20gV
2O
5Add the there-necked flask of 500mL, add 35.8g ethyl acetate and 32.0g isobutanol again, wherein ethyl acetate is made solvent, and isobutanol is made reducing agent, is stirred and heated to reflux temperature (about 115 ℃) then, continues heating 6 hours; Dropwise 35 .4g phosphoric acid continues reaction 6 hours then.In solution, add the 1.6g ammonium molybdate, continue reaction 2 hours, stop heating.With the solution cool to room temperature, by absolute ethanol washing, filtration 5 times, then filter cake is ground after 2 hours 110 ℃ of dryings again, obtain the catalyst substrates powder.Get 23g catalyst substrates powder and SiO 2 powder and mix, add the 40.9g Ludox then, stir according to the weight ratio of 1:1, put into the self-control shaped device and be extruded into strip, descended dry 2 hours at 120 ℃ then, be cut to diameter 2.5mm, the roundlet cylindrical particle of high 4mm.Calcined 20 hours down at 450 ℃ then, obtain required catalyst.
Get the 35g catalyst, place internal diameter to be 25mm, highly to carry out catalytic performance test for the fixed bed reactors of 500mm.The evaluating catalyst condition is: reaction temperature is 370～380 ℃, and unstripped gas furfural concentration is 0.95% (volume), and air speed is 2000h
-1, the cis-butenedioic anhydride molar yield under this condition is 73.4%, conversion ratio is 90.2%.Catalyst specific surface is 121.5 m
2/ g.
Embodiment 7
Take by weighing 20gV
2O
5Add the there-necked flask of 500mL, add 46.0g phenmethylol and 27.0g isobutanol again, wherein phenmethylol is made solvent, and isobutanol is made reducing agent, is stirred and heated to reflux temperature (about 115 ℃) then, continues heating 6 hours; Dropwise 35 .4g phosphoric acid continues reaction 6 hours then.In solution, add the 1.6g ammonium molybdate, continue reaction 2 hours, stop heating.With the solution cool to room temperature, by absolute ethanol washing, filtration 5 times, then filter cake is ground after 2 hours 110 ℃ of dryings again, obtain the catalyst substrates powder.Get 21g catalyst substrates powder and SiO 2 powder and mix, add the 37.4g Ludox then, stir according to the weight ratio of 1:1, put into the self-control shaped device and be extruded into strip, descended dry 2 hours at 120 ℃ then, be cut to diameter 2.5mm, the roundlet cylindrical particle of high 4mm.Calcined 20 hours down at 450 ℃ then, obtain required catalyst.
Get the 25g catalyst, place internal diameter to be 25mm, highly to carry out catalytic performance test for the fixed bed reactors of 500mm.The evaluating catalyst condition is: reaction temperature is 370～380 ℃, and unstripped gas furfural concentration is 0.95% (volume), and air speed is 2000h
-1, the cis-butenedioic anhydride molar yield under this condition is 76.8%, conversion ratio is 92.2%.Catalyst specific surface is 133.5 m
2/ g.
Embodiment 8
Experimental provision, method of operating, feeding quantity and reaction condition be with embodiment 7, and the consumption of different is phenmethylol and isobutanol is different, adds 30.0g phenmethylol and 45.0g isobutanol, and evaluation result is 74.1% for the cis-butenedioic anhydride molar yield, and conversion ratio is 90.7%.Catalyst specific surface is 131.6 m
2/ g.
Claims (4)
1. the organic facies preparation method of vanadium-phosphor oxide catalyst is characterized in that concrete preparation technology is as follows:
(1) preparation of catalyst substrates powder: with the V of 1 part of quality
2O
5Add in the container, the different organic matters that add 1.0～3.0 parts of quality are respectively made solvent and reducing agent, be heated to 115 ± 5 ℃, reacted 6～7 hours, drip the phosphoric acid of 0.5～2.5 part of quality then, continue reaction 6～7 hours, add the 3rd component co-catalyst of 0.01～0.2 part of quality then, a kind of or its mixture in the compound that wherein said the 3rd component is transition metals such as Mo, Co, Ni, Cu, Fe; Continue reaction 2～3 hours; With the solution cool to room temperature, by absolute ethanol washing, filtration 4～5 times, then filter cake is ground after 2～3 hours 110 ℃ of dryings again, obtain the catalyst substrates powder; Atomic ratio in the matrix powder between each component is V:P:M=1:(0.5～2.5): (0.01～0.20), wherein M represents the metallic element of the 3rd component; Wherein said organic matter can be alcohols, aldehydes, ester class;
(2) moulding of catalyst and activation: get the matrix powder of 1 part of quality in the above-mentioned matrix powder that makes, the SiO 2 powder that adds 0.1～2.5 part of quality is made catalyst carrier; The Ludox that adds 0.2～3.0 part of quality is made catalyst binder; Stir then, put into the self-control shaped device and be extruded into bar shaped, drying is 2～3 hours under 120 ℃, is cut to diameter 2～3mm, the roundlet cylindrical particle of high 3～4mm; Put into Muffle furnace then and obtain required catalyst, specific area 100～150m after 30 ± 10 hours in calcining under 450 ± 50 ℃
2/ g.
2. the organic facies preparation method of vanadium-phosphor oxide catalyst according to claim 1 is characterized in that the vanadium phosphorus atoms than being V:P=1:1.65; The metallic compound of wherein said the 3rd component is its oxide, chloride, sulfate, nitrate or carbonate.
3. the organic facies preparation method of vanadium-phosphor oxide catalyst according to claim 1 is characterized in that wherein the metallic compound of the 3rd component is the compound of Mo element, and its atomic ratio is V:Mo=1:0.04.
4. vanadium-phosphor oxide catalyst carries out according to following step in the application of preparing maleic anhydride from furfuraldehyde through catalytic oxidation: the catalyst that will make above places the fixed-bed micro-reactor device, and feeding furfural and Air mixing gas react produces cis-butenedioic anhydride; Its reaction condition is as follows: air speed is 1500～2500h
-1, the furfural volumetric concentration is 0.76%～1.44%, catalyst loading is 69.6g/h/L～174.0 g/h/L.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910699A (en) * | 2014-03-20 | 2014-07-09 | 华中科技大学 | Method for preparing maleic anhydride through selected oxidizing furfural |
| CN107474028A (en) * | 2017-08-23 | 2017-12-15 | 安徽智博新材料科技有限公司 | A kind of method for preparing cis-butenedioic anhydride by furfural using catalytic oxidation |
| CN108636430A (en) * | 2018-04-20 | 2018-10-12 | 华东理工大学 | A kind of preparation method and applications of the basic zirconium phosphate heterogeneous catalyst of vanadium modification |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009055406A2 (en) * | 2007-10-22 | 2009-04-30 | Huntsman Petrochemical Corporation | Improved oxidation catalyst for maleic anhydride production |
| CN101791563A (en) * | 2010-03-12 | 2010-08-04 | 江苏工业学院 | Catalyst used for preparing maleic anhydride from furfuraldehyde through catalytic oxidation and preparation method thereof |
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2010
- 2010-11-12 CN CN 201010541441 patent/CN102000595A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009055406A2 (en) * | 2007-10-22 | 2009-04-30 | Huntsman Petrochemical Corporation | Improved oxidation catalyst for maleic anhydride production |
| CN101791563A (en) * | 2010-03-12 | 2010-08-04 | 江苏工业学院 | Catalyst used for preparing maleic anhydride from furfuraldehyde through catalytic oxidation and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 《中国优秀硕士学位论文全文数据库》 20070115 蒋大林 "正丁烷选择性氧化制顺酐VPO催化剂的研究" 第1.4.5节，第2.2节 1-3 , 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910699A (en) * | 2014-03-20 | 2014-07-09 | 华中科技大学 | Method for preparing maleic anhydride through selected oxidizing furfural |
| CN107474028A (en) * | 2017-08-23 | 2017-12-15 | 安徽智博新材料科技有限公司 | A kind of method for preparing cis-butenedioic anhydride by furfural using catalytic oxidation |
| CN108636430A (en) * | 2018-04-20 | 2018-10-12 | 华东理工大学 | A kind of preparation method and applications of the basic zirconium phosphate heterogeneous catalyst of vanadium modification |
| CN108636430B (en) * | 2018-04-20 | 2020-10-13 | 华东理工大学 | Preparation method and application of vanadium-modified zirconium phosphate heterogeneous catalyst |
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Application publication date: 20110406 |