CN106140149B - A kind of catalyst and a kind of method of peroxynitrite decomposition hydrogen - Google Patents
A kind of catalyst and a kind of method of peroxynitrite decomposition hydrogen Download PDFInfo
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Abstract
A kind of method of peroxynitrite decomposition hydrogen, it include: that a) the epoxidation reaction product come out from epoxidation reactor is introduced into hydrogen peroxide dissociation reaction device, it is contacted at 0-50 DEG C with hydrogen peroxide decomposition catalyst, most of hydrogen peroxide therein is made to be decomposed into oxygen and water；B) it is sent into gas-liquid separator together after mixing the discharging of hydrogen peroxide dissociation reaction device with optional inert gas, removes incoagulable gas therein.It is characterized in that hydrogen peroxide decomposition catalyst contains III A family metal oxide of the VII B family metal oxide of 1-20 mass %, the VI B family metal oxide of 1-20 mass %, the IV B family metal oxide of 1-20 mass % and 40-97 mass %.Using method of the invention, chlorallylene can be decomposed before distillation separates with most of hydrogen peroxide remaining in hydrogen dioxide epoxidation reaction product, it effectively eliminates higher content of hydrogen peroxide in epoxidation reaction product and the safety of chlorallylene and hydrogen dioxide epoxidation reaction production epoxychloropropane is improved to the potential hazard of subsequent distillation separation process.
Description
Technical field
The present invention relates to a kind of decomposition methods of hydrogen peroxide in chlorallylene and hydrogen dioxide epoxidation reaction product.
Background technique
Hydrogen peroxide is a kind of oxidant of green, such as USP4, disclosed in 833,260, in titanium-silicon molecular sieve catalyst
It, can efficiently and cleanly synthesizing epoxy chlorine by chlorallylene and hydrogen dioxide epoxidation reaction in the presence of solvent methanol
Propane.And epoxychloropropane is a kind of important basic organic chemical industry raw material and intermediate, be widely used in synthetic epoxy resin,
A variety of industrial products such as chlorohydrin rubber, drug, pesticide, surfactant and plasticizer.
CN101747296A and CN101747297A are further disclosed by chlorallylene and hydrogen dioxide epoxidation reaction
The method for producing epoxychloropropane, the high conversion rate realized in hydrogen peroxide are higher than in the selectivity of 97% and epoxychloropropane
Long-time continuous stable ground synthesizing epoxy chloropropane in the case where 95%.But during long time running, hydrogen peroxide
Conversion ratio is usually maintained between 97-99%, so that the hydrogen peroxide containing 0.05-0.5 mass % in epoxidation reaction product.
The epoxidation reaction product of hydrogen peroxide containing 0.05-0.5 mass % is in subsequent distillation separation process, due to peroxidating
The boiling point (151.4 DEG C) of hydrogen is relatively high, is easily collected on the positions such as the higher tower reactor of temperature, and during heating, peroxidating
Hydrogen be also possible to be formed with organic matter the organic peroxide for being easy explosion or itself decompose release oxygen and with have
Machine object steam forms explosive mixture, is a kind of latent dangerous factor for threatening safety in production, to epoxidation reaction product
It needs to be eliminated before carrying out distillation separation.
Hydrogen peroxide in low concentration hydrogen peroxide aqueous solution (content of hydrogen peroxide is between 0.05-5 mass %) is divided
Solution, (Co-SiO of hydrogen peroxide is catalytically decomposed in Yuan Qiang, Li Hui, Wu Yingqiu, Yang Lefu, efficient cryogenic to Yuan Qiang et al.2Catalyst,
Xiamen University's journal (natural science edition), 49 (4), 2010,589-592) it reports using sol-gal process synthesis M-SiO2(M
=Ni, Zn, Fe, Bi, Cu, Al, Cd, Co) catalyst, peroxynitrite decomposition hydrogen content is the peroxidating of 3.4 mass % at 20 DEG C
Aqueous solution of hydrogen, wherein Co-SiO2The content of hydrogen peroxide can be reduced to 0.20 mass % in 30min by catalyst, be shown
The catalytic activity more much higher than other catalyst.Suzan A.Ali(Suzan A.Ali,Effect of Sequence of
Impregnation on the Structure and Catalytic Properties of Cu-Co-Al-Oxide
System.J.Mater.Sci.Technol., Vol.20, No.1,2004,55-58) report, using the oxidation of alumina load
Cobalt-copper oxide catalyst, peroxynitrite decomposition hydrogen content is the aqueous hydrogen peroxide solution of 0.73 mass % at 30 DEG C, but does not give
Specific hydrogen peroxide conversion data out.
To residual hydrogen peroxide in alkene and hydrogen dioxide epoxidation reaction product (content of hydrogen peroxide is lower than 1 mass %)
Decomposition, Chinese patent ZL01814048.3 and USP7,138,534 disclose a kind of method for continuous production of propylene oxide, right
The epoxidation product of propylene and hydrogen peroxide is first sent into destilling tower from removed overhead propylene and propylene oxide, then will contain first
The destilling tower tower bottom discharging of alcohol, water, epoxidation reaction by-product and hydrogen peroxide, which is sent into, is equipped with group VIII metal or metal oxygen
In the fixed bed reactors of compound catalyst, the peroxynitrite decomposition hydrogen in the case where temperature is 80-90 DEG C and alkaline condition, but do not provide
Specific catalyst composition.
In conclusion for comprising alkene, epoxyalkane, reaction dissolvent, water and epoxidation reaction by-product epoxidation
Reaction product, there has been no the open reports for directly decomposing hydrogen peroxide therein.
Summary of the invention
One of the objects of the present invention is to provide a kind of decomposition catalyst of hydrogen peroxide, the second purpose is to provide the catalysis
The decomposition method of agent hydrogen peroxide in chlorallylene and hydrogen dioxide epoxidation reaction product.
A kind of catalyst for peroxynitrite decomposition hydrogen, it is characterised in that the VII B race metal oxidation containing 1-20 mass %
Object, the VI B family metal oxide of 1-20 mass %, the IV B family metal oxide of 1-20 mass % and 40-97 mass % III A
Family metal oxide.
It is a kind of comprising alkene, epoxyalkane epoxidation reaction product in hydrogen peroxide decomposition method, feature exists
It is carried out in the presence of hydrogen peroxide decomposition catalyst in aforementioned present invention.
The decomposition method of hydrogen peroxide in a kind of chlorallylene and hydrogen dioxide epoxidation reaction product, comprising: a) will be from
The epoxidation reaction product that epoxidation reactor comes out is introduced into hydrogen peroxide dissociation reaction device, with hydrogen peroxide decomposition catalyst
It is contacted at 0-50 DEG C, most of hydrogen peroxide therein is made to be decomposed into oxygen and water；B) by hydrogen peroxide dissociation reaction device
Discharging is sent into gas-liquid separator together after mixing with optional inert gas, removes incoagulable gas therein.Its feature exists
Contain the VI B race metal oxidation of the VII B family metal oxide, 1-20 mass % of 1-20 mass % in hydrogen peroxide decomposition catalyst
III A family metal oxide of object, the IV B family metal oxide of 1-20 mass % and 40-97 mass %.
The decomposition method of hydrogen peroxide in chlorallylene provided by the invention and hydrogen dioxide epoxidation reaction product, to packet
Epoxidation reaction product containing chlorallylene, epoxychloropropane, reaction dissolvent, water, epoxidation reaction by-product and hydrogen peroxide,
Hydrogen peroxide therein is directly decomposed, epoxidation reaction is produced with eliminating the hydrogen peroxide of high level in epoxidation reaction product
Object distills isolated potential hazard, improves the safety of chlorallylene and hydrogen dioxide epoxidation reaction production epoxychloropropane.
Specific embodiment
A kind of catalyst for peroxynitrite decomposition hydrogen, it is characterised in that the VII B race metal oxidation containing 1-20 mass %
Object, the VI B family metal oxide of 1-20 mass %, the IV B family metal oxide of 1-20 mass % and 40-97 mass % III A
Family metal oxide.
Preferably, hydrogen peroxide decomposition catalyst provided by the invention, the VII B race metal oxidation containing 2-15 mass %
Object, the VI B family metal oxide of 2-10 mass %, the IV B family metal oxide of 2-10 mass % and 65-96 mass % III A
Family metal oxide.
In described catalyst, the VII B family metal oxide is preferably one of manganese, technetium and rhenium or a variety of oxygen
Compound, the preferably oxide of manganese；The VI B family metal oxide is one of chromium, molybdenum and tungsten or a variety of oxides,
The preferably oxide of the oxide of chromium and molybdenum；The IV B family metal oxide is one of titanium, zirconium and hafnium or a variety of
Oxide, wherein the oxide of preferably titanyl compound and zirconium；The III A family metal oxide be metallic aluminium, gallium, indium and
One of thallium or a variety of oxides, the preferably oxide of aluminium.
It is furthermore preferred that catalyst of the invention, the chromium oxidation of the Mn oxide containing 2-10 mass %, 2-10 mass %
The aluminium oxide of object, the Zirconium oxide of 2-10 mass % and 70-96 mass %.
The preparation method of the hydrogen peroxide decomposition catalyst include: 1) by III A family metal oxide or hydroxide,
Acidic aluminum sol, organic matter extrusion aid, organic matter pore-foaming agent and paste making agent are sufficiently kneaded into wet plastic body, then extruded moulding
For wet strip shape body；2) wet strip shape body obtains catalyst carrier by dry and roasting；3) with VII B race metal salt solution, VI
B race metal salt solution and IV B metal salt solution impregnated catalyst support obtain catalyst by dry and roasting.
In the step 1) of the preparation method of the catalyst, the III A family metal oxide or hydroxide, acidity
The mass ratio of the dosage of Aluminum sol, organic matter extrusion aid, organic matter pore-foaming agent and paste making agent is 100: (50-200): (1-100):
(1-25)∶(1-60)。
In the step 2) of the preparation method of the catalyst, the drying temperature is 0-120 DEG C, drying time 1-
48h；The maturing temperature is 400-800 DEG C, calcining time 1-48h.
In the step 3) of the preparation method of the catalyst, the dipping temperature of the metal salt solution is 0-50 DEG C,
Time is 1-48h；The drying temperature is 50-120 DEG C, drying time 1-48h；The maturing temperature is 300-700
DEG C, calcining time 1-48h.
The content of aluminium oxide is 1-25 mass %, preferably 10-25 mass % in the acidic aluminum sol.
The organic matter extrusion aid is in starch, carboxymethyl cellulose, hydroxyethyl cellulose, citric acid and sesbania powder
One or several kinds, preferably one of starch, citric acid and sesbania powder or several.
The organic matter pore-foaming agent be selected from one of polyethylene glycol, polypropylene glycol and alkyl phenol polyoxyethylene ether or
It is several, preferably polypropylene glycol and alkyl phenol polyoxyethylene ether.
The metal salt solution is in the aqueous solution, alcoholic solution and ketone solution of metal nitrate and/or metal carboxylate
One or several kinds, preferably one of the aqueous solution of metal nitrate and/or metal carboxylate and alcoholic solution.
The paste making agent is one of ketone of pure and mild C3-C4 of dust technology, water, C1-C4 or several, preferably dilute
One of nitric acid, water, methanol, ethyl alcohol, isopropanol and acetone are several, further preferably dust technology and water.
The content of nitric acid is 0.1-20 mass %, preferably 1-10 mass % in the dust technology.
The present invention also provides it is a kind of comprising alkene, epoxyalkane epoxidation reaction product in hydrogen peroxide decomposition
Method, it is characterised in that carried out in the presence of the hydrogen peroxide decomposition catalyst of aforementioned present invention.
The present invention still further provides hydrogen peroxide in a kind of chlorallylene and hydrogen dioxide epoxidation reaction product
Decomposition method, comprising: a) the epoxidation reaction product come out from epoxidation reactor is introduced into hydrogen peroxide dissociation reaction device,
It is contacted at 0-50 DEG C with hydrogen peroxide decomposition catalyst, most of hydrogen peroxide therein is made to be decomposed into oxygen and water；B) will
The discharging of hydrogen peroxide dissociation reaction device is sent into gas-liquid separator together after mixing with optional inert gas, is removed therein
Incoagulable gas.It is characterized in that hydrogen peroxide decomposition catalyst contains the VII B family metal oxide of 1-20 mass %, 1-20 matter
Measure the III A race metal oxidation of the VI B family metal oxide of %, the IV B metal oxide of 1-20 mass % and 40-97 mass %
Object.
According to the method for the present invention, wherein peroxidating in the chlorallylene and hydrogen dioxide epoxidation reaction product
The content of hydrogen is 0.05-1.0 mass %, preferably 0.05-0.6 mass %.
According to the method for the present invention, wherein the temperature that the hydrogen peroxide decomposes is 0-50 DEG C, preferably 10-40 DEG C.
According to the method for the present invention, wherein the pressure that the hydrogen peroxide decomposes is 0.1-2.0MPa, preferably 0.1-
1.0MPa。
According to the method for the present invention, when the hydrogen peroxide decomposition catalyst disperses in the reactor with liquid motion
When, the dosage of catalyst is the 0.1-40%, reaction time 0.01-24h, preferably catalyst of epoxidation reaction product quality
Dosage be epoxidation reaction product quality 1-20%, reaction time 0.1-10h.
According to the method for the present invention, when the hydrogen peroxide decomposition catalyst is fixed in the reactor, epoxidation is anti-
Mass space velocity is 0.01-20h when answering the feeding liquid of product-1, preferably 0.1-10h-1。
It, can be by major part remaining in chlorallylene and hydrogen dioxide epoxidation reaction product using method of the invention
Hydrogen peroxide is decomposed before distillation separates epoxidation reaction product, effectively eliminates higher mistake in epoxidation reaction product
Hydrogen content is aoxidized to the potential hazard of subsequent distillation separation process, chlorallylene is improved and hydrogen dioxide epoxidation reaction produces ring
The safety of oxygen chloropropane.Since the decomposition temperature of hydrogen peroxide is low, in hydrogen peroxide decomposable process middle ring oxidation reaction product
Epoxychloropropane decomposition loss can be ignored, remain epoxidation reaction product middle ring oxidation chloropropane high selection
Property.
It is possible can both to have eliminated high level hydrogen peroxide in epoxidation reaction product for method provided by the invention
Potential safety hazard, and can guarantee the highly selective of epoxychloropropane in epoxidation reaction product, meet wanting for industrial application
It asks, and technical process is simple, it is easy to accomplish.
The following examples will be further described method of the invention, but not thereby limiting the invention.
Embodiment 1
By 300.00 grams of aluminium hydroxide powders, (alumina content 68.2%, photoinitiator chemical Co., Ltd, Shandong Zibo Thailand are raw
Produce), 75.00 grams of starch (analytical reagents), 15.00 grams of sesbania powders (production of Henan Lankao natural plant gum factory), 415.0 grams of aluminium oxide
Content be 22.4% Aluminum sol (production of Hunan Jian Chang petrochemical industry limited liability company), 25.00 grams of octylphenol polyethylene ethylene oxides
(15) ether (OP-15, the production of Xingtai Ke Wang auxiliary chemicals Co., Ltd) and 60.00 grams of nitric acid contents are 3.0 mass %'s
Dust technology is sufficiently mediated in multifunction catalyst molding machine (production of South China Science & Engineering University's science and technology industry head factory) and obtains wet modeling
Property body, then extruded moulding be φ 1.2mm filled circles column, be put into chamber type electric resistance furnace after 24 hours are dried at 20-25 DEG C
In, 120 DEG C are heated to from 20 DEG C of heating rates with 3 DEG C/min and is stopped 3 hours, are then added with the heating rate of 10 DEG C/min
Heat is to 600 DEG C and stops 20 hours, and cylindrical bars catalyst carrier A is obtained after natural cooling.
Embodiment 2
By 317.80 grams of aluminium hydroxide powders, (alumina content 74.2%, photoinitiator chemical Co., Ltd, Shandong Zibo Thailand are raw
Produce), 7.50 grams of sesbania powders (production of Henan Lankao natural plant gum factory), 334.82 grams of alumina contents for 22.4% Aluminum sol (lake
Nan Jianchang petrochemical industry limited liability company production), 15.00 grams of octylphenol polyethylene ethylene oxide (15) ethers (OP-15, Xingtai sections
The production of king's auxiliary chemicals Co., Ltd) and 75.00 grams of deionized waters in multifunction catalyst molding machine, (South China Science & Engineering University is scientific and technological
Industry head factory production) in sufficiently mediate obtain wet plastic body, then extruded moulding be φ 1.2mm filled circles column, 15
It is put into chamber type electric resistance furnace after drying 18 hours at DEG C, is heated to 120 DEG C from 20 DEG C of heating rates with 5 DEG C/min and stops 5
Hour, 550 DEG C then are heated to the heating rate of 3 DEG C/min and is stopped 15 hours, and cylindrical bars catalysis is obtained after natural cooling
Agent carrier B.
Embodiment 3
At 25 DEG C, by the manganese nitrate solution of 4.73 gram of 50 mass %, 3.98 gram of nine water chromic nitrate and 1.50 gram of two water nitre
Sour oxygen zirconium, which is dissolved in 35.00 grams of deionized waters, is configured to mixed solution, and 20.00g stripe shape catalyst carrier A is impregnated wherein 36h,
The dry 18h in the baking oven at 60 DEG C again, finally roasts in 450 DEG C of air and obtains metal oxide catalyst afterwards for 24 hours, urge
Agent contains the Zirconium oxide and 87.00 of the Mn oxide of 5.00 mass %, the chromated oxide of 5.00 mass %, 3.00 mass %
The aluminium oxide of quality %.
The catalytically active assessment of catalyst carries out in stirred tank reactor, under 35 DEG C and self-generated pressure (0.1MPa),
The epoxidation reaction product that 100.00 grams of content of hydrogen peroxide are 0.508 mass % is added in the catalyst that 5.00 grams are about 5mm
In, it opens stirring and carries out decomposition reaction, fluid sample is taken in given time interval, according to side disclosed in CN101747296A
Method, analyzes the mass fraction of hydrogen peroxide and epoxychloropropane in epoxidation reaction product, and the decomposition result of hydrogen peroxide is shown in Table
1, w thereinHPOIndicate the mass fraction of hydrogen peroxide, wECHIndicate the mass fraction of epoxychloropropane, XHPOIndicate hydrogen peroxide
Conversion ratio, XECHIndicate the resolution ratio of epoxychloropropane.
Table 1
| Reaction time/h | wHPO/ % | wECH/ % | XHPO/ % | XECH/ % |
| 0 | 0.508 | 12.87 | 0 | 0 |
| 0.5 | 0.021 | 12.92 | 95.87 | -0.39 |
Embodiment 4
At 20 DEG C, by the manganese nitrate solution of 9.50 gram of 50 mass %, 6.85 gram of nine water chromic nitrate and 3.58 gram of two water nitre
Sour oxygen zirconium, which is dissolved in 105.00 grams of deionized waters, is configured to mixed solution, wherein by 60.00g stripe shape catalyst carrier A dipping
30h, then the dry 8h in the baking oven at 90 DEG C, obtain metal oxide oxidation catalyst after finally roasting 20h in 550 DEG C of air
Agent, catalyst contain the Mn oxide of 3.50 mass %, the chromated oxide of 3.00 mass %, 2.50 mass % Zirconium oxide and
The aluminium oxide of 91.00 mass %.
According to the decomposition for carrying out hydrogen peroxide in epoxidation reaction product with the identical method of embodiment 3, except that:
The catalytically active assessment of catalyst carries out in fixed bed jacketed pipe type reactor, pressure 0.4MPa, temperature are 28 DEG C, epoxy
Mass space velocity is 0.500h when changing the feeding liquid of reaction product-1, the content of hydrogen peroxide is 0.312 matter in epoxidation reaction product
% is measured, the decomposition result of hydrogen peroxide is shown in Table 2, w thereinHPO1And wHPO2Respectively indicate hydrogen peroxide dissociation reaction device charging and
The mass fraction of hydrogen peroxide, w in dischargingECH1And wECH2Respectively indicate epoxy in the charging of hydrogen peroxide dissociation reaction device and discharging
The mass fraction of chloropropane.
Table 2
| Feed time/h | wHPO1/ % | wHPO2/ % | wECH1/ % | wECH2/ % | XHPO/ % | XECH/ % |
| 6 | 0.312 | 0.006 | 18.35 | 18.47 | 98.08 | -0.65 |
Embodiment 5
At 26 DEG C, by the manganese nitrate solution of 4.84 gram of 50 mass %, 4.07 gram of nine water chromic nitrate and 2.55 gram of two water nitre
Sour oxygen zirconium, which is dissolved in 35.00 grams of deionized waters, is configured to mixed solution, wherein for 24 hours by 20.00g stripe shape catalyst carrier B dipping,
The dry 12h in the baking oven at 80 DEG C again, obtains metal oxide catalyst after finally roasting 12h in 400 DEG C of air, urges
Agent contains the Zirconium oxide and 85.00 of the Mn oxide of 5.00 mass %, the chromated oxide of 5.00 mass %, 5.00 mass %
The aluminium oxide of quality %.
Using the decomposition for carrying out hydrogen peroxide in epoxidation reaction product with the identical method of embodiment 3, except that:
Decomposition temperature is 30 DEG C, the content of hydrogen peroxide is 0.361 mass %, the decomposition result of hydrogen peroxide in epoxidation reaction product
It is shown in Table 3.
Table 3
| Reaction time/h | wHPO/ % | wECH/ % | XHPO/ % | XECH/ % |
| 0 | 0.361 | 14.97 | 0 | 0 |
| 0.5 | 0.014 | 14.82 | 96.12 | 1.00 |
Comparative example 1
Using point for preparing hydrogen peroxide in catalyst and progress epoxidation reaction product with the identical method of embodiment 3
Solution, except that: hydrogen peroxide dissociation reaction is carried out in the case where temperature is 65 DEG C and self-generated pressure is 0.2MPa, hydrogen peroxide
Decomposition result is shown in Table 4.
Table 4
| Reaction time/h | wHPO/ % | wECH/ % | XHPO/ % | XECH/ % |
| 0 | 0.508 | 12.87 | 0 | 0 |
| 0.5 | 0.021 | 12.64 | 95.87 | 1.79 |
Comparative example 2
Using point for preparing hydrogen peroxide in catalyst and progress epoxidation reaction product with the identical method of embodiment 4
Solution, except that: hydrogen peroxide dissociation reaction is carried out in the case where temperature is 80 DEG C and pressure is 0.8MPa, the decomposition of hydrogen peroxide
It the results are shown in Table 5.
Table 5
| Feed time/h | wHPO1/ % | wHPO2/ % | wECH1/ % | wECH2/ % | XHPO/ % | XECH/ % |
| 6 | 0.312 | 0.007 | 18.35 | 8.28 | 97.76 | 54.88 |
Comparative example 3
Using point for preparing hydrogen peroxide in catalyst and progress epoxidation reaction product with the identical method of embodiment 5
Solution, except that: hydrogen peroxide dissociation reaction is carried out in the case where temperature is 65 DEG C and self-generated pressure is 0.2MPa, hydrogen peroxide
Decomposition result is shown in Table 6.
Table 6
| Reaction time/h | wHPO/ % | wECH/ % | XHPO/ % | XECH/ % |
| 0 | 0.361 | 14.97 | 0 | 0 |
| 0.5 | 0.012 | 14.65 | 96.68 | 2.14 |
The result decomposed from above-mentioned hydrogen peroxide can be seen that using method of the invention, not only can be anti-by epoxidation
It answers in product 95% or more hydrogen peroxide to be decomposed into oxygen and water, is lower than the content of hydrogen peroxide in epoxidation reaction product
0.022%, and the resolution ratio of epoxychloropropane is no more than 1% in epoxidation reaction product, and the content of epoxychloropropane exists
Hydrogen peroxide decomposes front and back and varies less, and maintains the highly selective of epoxychloropropane in epoxidation reaction product.And use pair
The method of ratio, although can also make the content of hydrogen peroxide in epoxidation reaction product lower than 0.022%, epoxidation is anti-
The resolution ratio of epoxychloropropane in product is answered all to be higher than 1.7%, some has been even more than 50%, anti-by epoxidation is reduced significantly
Answer the selectivity of epoxychloropropane in product.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (3)
1. a kind of for decomposing the catalyst of hydrogen peroxide in chlorallylene and hydrogen dioxide epoxidation reaction product, feature exists
In the VII B family metal oxide containing 1-20 mass %, the VI B family metal oxide of 1-20 mass %, 1-20 mass % IV B
III A family metal oxide of family metal oxide and 40-97 mass %, wherein the VII B family metal oxide is the oxygen of manganese
Compound, the VI B family metal oxide are the oxide of chromium, and the IV B family metal oxide is the oxide of zirconium, described
III A family metal oxide be metallic aluminium oxide.
2. catalyst according to claim 1, it is characterised in that contain the VII B family metal oxide of 2-15 mass %, 2-10 matter
Measure the III A race metal oxidation of the VI B family metal oxide of %, the IV B family metal oxide of 2-10 mass % and 65-96 mass %
Object.
3. catalyst according to claim 1, chromated oxide, the 2- of the Mn oxide containing 2-10 mass %, 2-10 mass %
The Zirconium oxide of 10 mass % and the aluminium oxide of 70-96 mass %.
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| US6534440B2 (en) * | 2000-11-29 | 2003-03-18 | Council Of Scientific And Industrial Research | Process for the activation of a metallic palladium based catalyst useful for the direct oxidation of hydrogen to hydrogen peroxide |
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| CN1446206A (en) * | 2000-08-11 | 2003-10-01 | 陶氏环球技术公司 | Process for continuous production of olefinic oxide |
| CN101077984A (en) * | 2007-07-25 | 2007-11-28 | 中国石油大学(北京) | Deep desulfurization method for liquefied petroleum gas |
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