CN104710276A - Method for preparing cyclohexanol and/or cyclohexanone through microwave heating - Google Patents
Method for preparing cyclohexanol and/or cyclohexanone through microwave heating Download PDFInfo
- Publication number
- CN104710276A CN104710276A CN201510085246.8A CN201510085246A CN104710276A CN 104710276 A CN104710276 A CN 104710276A CN 201510085246 A CN201510085246 A CN 201510085246A CN 104710276 A CN104710276 A CN 104710276A
- Authority
- CN
- China
- Prior art keywords
- reaction
- microwave heating
- pimelinketone
- hexalin
- phenol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/17—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds
- C07C29/19—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds in six-membered aromatic rings
- C07C29/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds in six-membered aromatic rings in a non-condensed rings substituted with hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
- C07C45/512—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being a free hydroxyl group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Abstract
The invention discloses a method for preparing cyclohexanol and/or cyclohexanone through microwave heating by taking phenol as a raw material. According to the method, microwaves are adopted as an auxiliary heating mode, in a water-fatty alcohol system, nickel-system catalysts such as Ni/CMK-3 and the like are adopted to catalyze reaction for 0.5-1.5 hours at a temperature of 160-260 DEG C, the cold pressure before reaction is 0.1-5MPa, and cyclohexanol is synthesized through a one-step reaction; the mass ratio of phenol and fatty alcohol to water is (1-2):(2.5-25):50; the use amount of the catalyst accounts for 1-8% of the mass of a stoste solution consisting of phenol, fatty alcohol and water; the reaction is implemented inside a high-pressure reaction kettle, slurry reactor or fixed bed reactor heated with microwaves, and as microwave heating is applied to an in-situ phenol hydrogenation system, the reaction heating is relatively uniform, the heating velocity and the in-situ hydrogenation reaction velocity are increased, the production efficiency of a hydrogenation process is improved, and the method is relatively high in industrial prospect.
Description
Technical field
The present invention relates to chemical field, be specifically related to a kind of catalysis of phenol and transform the method preparing hexalin and/or pimelinketone.
Technical background
Microwave refers to that frequency is the hertzian wave of 0.3GHz ~ 300GHz, is the abbreviation of a limited frequency band in radiowave, and namely the hertzian wave of wavelength between 1 millimeter ~ 1 meter, is the general designation of decimetric wave, centimetric wave, millimeter wave.Compared with traditional heating mode, microwave heating has the features such as rate of heating is fast, calorific loss is little, easy to operate, both can shorten the process time, and boosted productivity, reduce costs, and can improve the quality of products again.Microwave produces from heating thing inner, therefore microwave heating can be accomplished comprehensively to heat simultaneously, and the penetrance of microwave heating is strong, easierly can be penetrated into media interior, ensure that the even of heating, the inertia of microwave heating is simultaneously very little, the quick control of gradient of temperature can be realized, be conducive to quantity-produced and automatically control, in addition, cleanliness without any pollution is also one of advantage of microwave, significantly can improve the labor condition of workman.
Hexalin is a kind of industrial raw material, and belong to alicyclic ring alcohol, have the general aspects of alcohols, main application comprises the solvent of resin, paint, ethyl cellulose, rubber etc., can be used as sanitising agent, rubber reinforcing agent etc. in addition.Pimelinketone then belongs to alicyclic ring ketone, and have the general chemical property of ketone, smell is similar to acetone, is slightly soluble in water, dissolves in various organic solvent.It is the raw material manufacturing nylon, hexanolactam, hexanodioic acid etc.
The common method for making of hexalin take hexanaphthene as raw material, at pressure 1.47 ~ 1.96MPa and temperature 170 ~ 200 DEG C, directly uses atmospheric oxidation, after concentrated, then be catalyzer with molybdenum, vanadium, cobalt/cobalt oxide, make it to decompose, can obtain hexalin and pimelinketone, then fractionation is refined, and obtains hexalin.
The common method for making of pimelinketone except by the above-mentioned method preparing hexalin except fractionation preparation, also by the mixture through catalytic dehydrogenation by hexalin and pimelinketone, change hexalin into pimelinketone, catalyzer can use the mixture of zinc oxide and calcium oxide, and desorption temperature is 360 ~ 420 DEG C, pressure 0.1MPa.
Summary of the invention
The object of the invention is, produce hexalin and/or pimelinketone for phenol original position hydrogenation and a kind of method improving transformation efficiency, Reaction time shorten with microwave fast heating is provided.Microwave heating is that reaction provides heating rate and uniform type of heating fast, and it is lower that the mode that methyl alcohol original position produces hydrogen hydrogenation is that the synthesis of hexalin and pimelinketone provides cost, the higher and production ways of more environmental protection of efficiency.
The present invention is achieved by the following technical programs:
The method of hexalin and/or pimelinketone is prepared in a kind of microwave heating, it is characterized in that, in an inert atmosphere, in water-fatty alcohol system, under the effect of nickel catalyst, using microwave heating, under colding pressing, take phenol as raw material single step reaction synthesizing cyclohexanol and/or pimelinketone before the reaction of the temperature of reaction of 160 ~ 260 DEG C, 0.1 ~ 5MPa; Described phenol: fatty alcohol: the mol ratio of water is 1 ~ 2:2.5 ~ 25:50; The quality of described nickel catalyst be phenol, fatty alcohol and water three composition reaction stoste quality 1 ~ 8%.
The reaction formula of this synthetic method is as follows:
CH
3OH+H
2O——>3H
2+CO
2
C
6H
5OH+2H
2——>C
6H
10O
C
6H
5OH+3H
2——>C
6H
11OH
Described reaction can carrying out with in the autoclave of microwave heating installation, paste state bed reactor or fixed-bed reactor.
Described fatty alcohol is preferably methyl alcohol or ethanol.
The nickel catalyst that the present invention adopts is selected from Raney's nickel or loading type nickel-based catalyst; Described loading type nickel-based catalyst, the charge capacity of nickel is 5 ~ 30%, comprises unmodified and metal-modified loading type nickel-based catalyst; Metal for modification is selected from Mo, Sn, Ce, Cu, Fe or Ru.
Further, the carrier of described loading type nickel-based catalyst is preferably mesoporous carbon CMK-3.
Above-mentioned mesoporous carbon CMK-3 adopts ordinary method preparation, the load of nickel adopts pickling process, concrete steps are as follows: the charge capacity according to nickel takes CMK-3 and nickel salt in proportion, add water after mixing, stir post-drying, reduce under reducing gas again, obtain the loading type nickel-based catalyst Ni/CMK-3 that required CMK-3 is carrier.
Metal-modified loading type nickel-based catalyst adopts the method for step impregnation or co-precipitation interpolation metal to prepare, and for Mo-Ni/CMK-3, concrete steps are as follows: take Ni/CMK-3 and (NH in proportion
4)
2moO
4, add water after mixing, stir post-drying, roasting, then reduce under reducing gas, obtain the loading type nickel-based catalyst MO-Ni/CMK-3 of required Mo modification.
Described temperature of reaction is preferably 160 ~ 230 DEG C, and cold pressing before reaction preferably 0.1 ~ 3MPa.
The time of described reaction is preferably 0.5h ~ 1.5h.
The power of described microwave heating is preferably 800 ~ 1600W.
The present invention prepares the method for hexalin and/or pimelinketone, comprise the following steps: by phenol, fatty alcohol and hydromassage, you are mixed to get reaction stoste than the ratio being 1 ~ 2:2.5 ~ 25:50, reaction stoste is added in reaction vessel, and add nickel catalyst (nickel catalyst usage quantity be phenol, fatty alcohol and water three composition reaction stoste quality 1 ~ 8%); After air in nitrogen replacement container, pressure in container is adjusted to 0.1 ~ 5MPa, uses the microwave heating of 800 ~ 1600W, react 0.5h ~ 1.5h at 160 ~ 260 DEG C, be separated and obtain hexalin and/or pimelinketone.
Compared with prior art, beneficial effect of the present invention shows as:
1. microwave heating improves the speed of response of heating rate and hydrogenation technique, thus improve hydrogenation technique production efficiency, shorten the reaction times, only need can reach higher product yield in 0.5 ~ 1.5 hour.
2. phenol original position hydrogenation does not need outside to provide hydrogen, eliminates the safety problem of the links such as hydrogen preparation, storage and conveying, simplifies technique, reduce production cost.
3., as used Ni/CMK-3 catalyzer, significantly can reduce cost and the consumption of catalyzer.
In a word, whole production process environmental protection, improves the production efficiency of original technology, has higher industrial prospect.
Accompanying drawing illustrates:
Fig. 1 is MS (mass spectrum) collection of illustrative plates of the hexalin in the product that obtains of the embodiment of the present invention 1, and wherein a is the MS figure of hexalin in product, and b is that hexalin standard substance MS schemes;
Fig. 2 is the MS collection of illustrative plates of the pimelinketone in the product that obtains of the embodiment of the present invention 1, and wherein c is the MS figure of product cyclohexanone, and d is that pimelinketone standard substance MS schemes.
Embodiment
Below by embodiment, the invention will be further described.
The preparation of Ni/CMK-3 catalyzer in the present invention, concrete steps are as follows:
The preparation of mesoporous carbon CMK-3: 3.75g sucrose and the 0.42g vitriol oil are joined 15ml deionized water for stirring and dissolve, then add 3g mesoporous molecular sieve SBA-15, stirs and ultrasonicly after evenly, puts into baking oven 100 DEG C of dry 8h, 160 DEG C of dry 8h; Carry out secondary filling subsequently: the 0.27g vitriol oil and 0.24g sucrose are put into 15ml deionized water for stirring and dissolve; then the SBA-15 after first time filling is added; stir and ultrasonicly after evenly, put into baking oven 100 DEG C of dry 8h; 160 DEG C of dry 8h, 900 DEG C of carbonization 3h under nitrogen protection after gained solid abrasive.Reflux the solid after carbonization in the NaOH solution of 1mol/l twice removing Molecular Sieves as Template subsequently, and filtration washing, to neutral, obtains ordered mesopore carbon CMK-3 after 100 DEG C of dryings.
The load of nickel adopts pickling process, and concrete steps are as follows: the charge capacity according to nickel takes CMK-3 and nickel salt in proportion, adds water after mixing, stirs post-drying, then reduces under reducing gas, obtain the loading type nickel-based catalyst Ni/CMK-3 that required CMK-3 is carrier.Such as, get 0.8gCMK-3 and put into 50ml crucible, add 0.79g Ni (NO
3)
26H
2o, then add to add water to and just do not have solid surface, stirs 12h at 40 DEG C, then 100 DEG C of baking oven inner dryings volatilizations, before final reaction by powder at reducing gas (5%H
2+ 95%N
2gas mixture) protect lower 550 DEG C of reduction 4h, obtain Ni/CMK-3 catalyzer, Ni charge capacity is 30% here.
Metal-modified loading type nickel-based catalyst adopts the method for step impregnation or co-precipitation, and for Mo-Ni/CMK-3, concrete steps are as follows: take Ni/CMK-3 and (NH in proportion
4)
2moO
4, add water after mixing, stir post-drying, roasting, then reduce under reducing gas, obtain the loading type nickel-based catalyst MO-Ni/CMK-3 of required Mo modification.Such as, get 8gNi/CMK-3 and put into 50ml crucible, add 0.8g (NH
4)
2moO
4, then add to add water to and just do not have solid surface, at 40 DEG C, stir 3h, then 100 DEG C of baking oven inner dryings volatilizations, before final reaction by powder at reducing gas (5%H
2+ 95%N
2gas mixture) protect lower 550 DEG C of reduction 4h, obtain Mo-Ni/CMK-3 catalyzer, the charge capacity of Mo is 5% here.
After reaction terminates, the separating-purifying concrete steps of pimelinketone and hexalin are as follows:
The reaction solution collected after reaction (is widened boiling-point difference distance), abundant methanol removed by evaporation and moisture at 60 DEG C in vacuum rotary evaporator.Remove the methanol water mix-ture in returnable bottle, be warming up to 100 DEG C of continuation and rotary evaporation in vacuo is carried out to residual solution, collect to distillate and point be hexalin and pimelinketone.The boiling point of pimelinketone and hexalin is respectively 155.6 DEG C, 161.1 DEG C, pimelinketone and hexalin is separated by fractionation.
Embodiment 1
9.4g phenol (0.1mol), 8g methyl alcohol (0.25mol), 90g water (5mol) are mixed to get reaction stoste.Reaction stoste is joined in the autoclave of 200ml, and adds the dried Ni/CMK-3 of 1.1g (Ni charge capacity 20%) catalyzer.After air in nitrogen replacement still, pressure in still is risen to 3MPa, use the microwave heating of 1200W, at 160 DEG C, react 1h.Question response collects liquid and catalyzer after terminating to be cooled to room temperature, and get reaction system mixture and do gas-chromatography (GC) mensuration, hexalin yield is 37.32%, and pimelinketone yield is 17.01%.
Embodiment 2
0.94g phenol (0.01mol), 8g methyl alcohol (0.25mol), 9g water (0.5mol) are mixed to get reaction stoste.Reaction stoste is joined in the paste state bed reactor of 50ml, and adds the dried Mo-Ni/CMK-3 of 1.4g (Ni charge capacity 20%) catalyzer.After air in nitrogen replacement still, regulate pressure to 1MPa, use the microwave heating of 1200W, at 240 DEG C, react 1.5h.Question response collects liquid and catalyzer after terminating to be cooled to room temperature.The total recovery of hexalin is 97.66%.
Embodiment 3
9.4g phenol (0.1mol), 48g methyl alcohol (1.5mol), 90g water (5mol) are mixed to get reaction stoste.Reaction stoste is joined in the paste state bed reactor of 200ml, and adds the dried Ni/CMK-3 of 6g (Ni charge capacity 10%) catalyzer.After air in nitrogen replacement still, pressure in still is risen to 0.1MPa, use the microwave heating of 1600W, at 260 DEG C, react 0.5h.Question response collects liquid and catalyzer after terminating to be cooled to room temperature.The total recovery of hexalin is 47.19%, and the total recovery of pimelinketone is 12.31%.
Embodiment 4
18.8g phenol (0.2mol), 48g methyl alcohol (1.5mol), 90g water (5mol) are mixed to get reaction stoste.Reaction stoste is joined in the paste state bed reactor of 200ml, and adds the dried Ni/CMK-3 of 3g (Ni charge capacity 30%) catalyzer.After air in nitrogen replacement still, pressure in still is adjusted to 2MPa, uses the microwave heating of 1200W, at 180 DEG C, react 1h.Question response collects liquid and catalyzer after terminating to be cooled to room temperature.The total recovery of hexalin is 56.43%, and the total recovery of pimelinketone is 15.61%.
Embodiment 5
9.4g phenol (0.1mol), 48g methyl alcohol (1.5mol), 90g water (5mol) are mixed to get reaction stoste.Reaction stoste is joined in the autoclave of 200ml, and adds the dried Ru-Ni/CMK-3 of 4g (Ni charge capacity 5%) catalyzer.After air in nitrogen replacement still, pressure in still is risen to 3MPa, use the microwave heating of 800W, at 220 DEG C, react 0.5h.Question response collects liquid and catalyzer after terminating to be cooled to room temperature.The total recovery of pimelinketone is 87.34%, and the total recovery of hexalin is 5.73%.
Embodiment 6
18.8g phenol (0.2mol), 46g ethanol (1mol), 90g water (5mol) are mixed to get reaction stoste.Reaction stoste is joined in the fixed-bed reactor of 200ml, and adds the dried Cu-Ni/CMK-3 of 2g (Ni charge capacity 5%) catalyzer.After air in nitrogen replacement still, pressure in still is risen to 5MPa, use the microwave heating of 1500W, at 260 DEG C, react 1h.Question response collects liquid and catalyzer after terminating to be cooled to room temperature.The total recovery of hexalin is 40.29%, and the total recovery of pimelinketone is 15.14%.
Embodiment 7
14.1g phenol (0.15mol), 115g ethanol (2.5mol), 90g water (5mol) are mixed to get reaction stoste.Reaction stoste is joined in the autoclave of 200ml, and adds the dried Raney's nickel of 3g.After air in nitrogen replacement still, pressure in still is risen to 4MPa, use the microwave heating of 1600W, at 230 DEG C, react 0.5h.Question response collects liquid and catalyzer after terminating to be cooled to room temperature.The yield of hexalin is 45.23%, and the yield of pimelinketone is 12.16%.
Claims (10)
1. the method for hexalin and/or pimelinketone is prepared in a microwave heating, it is characterized in that, in an inert atmosphere, in water-fatty alcohol system, under the effect of nickel catalyst, using microwave heating, under colding pressing, take phenol as raw material single step reaction synthesizing cyclohexanol and/or pimelinketone before the reaction of the temperature of reaction of 160 ~ 260 DEG C, 0.1 ~ 5MPa; Described phenol: fatty alcohol: the mol ratio of water is 1 ~ 2:2.5 ~ 25:50; The quality of described nickel catalyst be phenol, fatty alcohol and water three composition reaction stoste quality 1 ~ 8%.
2. the method for hexalin and/or pimelinketone is prepared in microwave heating as claimed in claim 1, and it is characterized in that, described fatty alcohol is selected from methyl alcohol or ethanol.
3. the method for hexalin and/or pimelinketone is prepared in microwave heating as claimed in claim 1, and it is characterized in that, described nickel catalyst is selected from Raney's nickel or loading type nickel-based catalyst; Described loading type nickel-based catalyst, the charge capacity of nickel is 5 ~ 30%.
4. the method for hexalin and/or pimelinketone is prepared in microwave heating as claimed in claim 3, and it is characterized in that, described loading type nickel-based catalyst also comprises metal-modified loading type nickel-based catalyst, and described metal is selected from Mo, Sn, Ce, Cu, Fe or Ru.
5. the method for hexalin and/or pimelinketone is prepared in the microwave heating as described in claim 3 or 4, it is characterized in that, the carrier of described loading type nickel-based catalyst is mesoporous carbon CMK-3.
6. the method for hexalin and/or pimelinketone is prepared in microwave heating as claimed in claim 1 or 2, and it is characterized in that, described temperature of reaction is 160 ~ 230 DEG C, and colding pressing before reaction is 0.1 ~ 3MPa.
7. the method for hexalin and/or pimelinketone is prepared in microwave heating as claimed in claim 1 or 2, and it is characterized in that, the time of described reaction is 0.5h ~ 1.5h.
8. the method for hexalin and/or pimelinketone is prepared in microwave heating as claimed in claim 1 or 2, and it is characterized in that, the power of described microwave heating is 800 ~ 1600W.
9. the method for hexalin and/or pimelinketone is prepared in microwave heating as claimed in claim 1, it is characterized in that, comprise the following steps: phenol, fatty alcohol and water are mixed in proportion and obtain reacting stoste, reaction stoste is added in reaction vessel, and adds nickel catalyst; After air in nitrogen replacement container, pressure in container is adjusted to 0.1 ~ 5MPa, uses the microwave heating of 800 ~ 1600W, react 0.5h ~ 1.5h at 160 ~ 260 DEG C, be separated and obtain hexalin and/or pimelinketone.
10. the method for hexalin and/or pimelinketone is prepared in microwave heating as claimed in claim 9, it is characterized in that, concrete steps are: 0.01mol phenol, 0.25mol methyl alcohol, 0.5mol water are mixed to get reaction stoste, reaction stoste is joined in the paste state bed reactor of 50ml, and add 1.4g dried, the Mo-Ni/CMK-3 catalyzer of Ni charge capacity 20%; After air in nitrogen replacement still, regulate pressure to 1MPa, use the microwave heating of 1200W, react 1.5h at 240 DEG C, be separated and obtain hexalin and/or pimelinketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510085246.8A CN104710276B (en) | 2015-02-15 | 2015-02-15 | A kind of method that microwave heating prepares Hexalin and/or Ketohexamethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510085246.8A CN104710276B (en) | 2015-02-15 | 2015-02-15 | A kind of method that microwave heating prepares Hexalin and/or Ketohexamethylene |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104710276A true CN104710276A (en) | 2015-06-17 |
| CN104710276B CN104710276B (en) | 2017-03-01 |
Family
ID=53410071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510085246.8A Active CN104710276B (en) | 2015-02-15 | 2015-02-15 | A kind of method that microwave heating prepares Hexalin and/or Ketohexamethylene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104710276B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847206A (en) * | 2006-05-10 | 2006-10-18 | 浙江工业大学 | Synthesis process of cyclohexanone and cyclohexanol |
| CN1868988A (en) * | 2006-07-03 | 2006-11-29 | 浙江工业大学 | Synthesis method of substituted cyclohexanone and/or substituted cyclohexanol |
-
2015
- 2015-02-15 CN CN201510085246.8A patent/CN104710276B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847206A (en) * | 2006-05-10 | 2006-10-18 | 浙江工业大学 | Synthesis process of cyclohexanone and cyclohexanol |
| CN1868988A (en) * | 2006-07-03 | 2006-11-29 | 浙江工业大学 | Synthesis method of substituted cyclohexanone and/or substituted cyclohexanol |
Non-Patent Citations (1)
| Title |
|---|
| 张先如等: "微波在有机合成化学中的应用及进展", 《合成化学》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104710276B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108236955B (en) | Preparation method of catalyst for synthesizing ethanol by dimethyl oxalate hydrogenation, catalyst obtained by preparation method and application of catalyst | |
| CN108993495B (en) | Method for preparing alkane compound by catalytic deoxidation of carbonyl or hydroxyl-containing compound | |
| CN105294409A (en) | Eugenol synthesis method | |
| CN114315504B (en) | Method for preparing methyl cyclopentadiene by catalyzing AxByOz type composite metal oxide | |
| CN110152663A (en) | It is a kind of for the catalyst of preparation by furfural gas phase hydrogenation furfuryl alcohol and its preparation and application | |
| CN109574798B (en) | Method for directly producing ethanol from synthesis gas | |
| CN106582666B (en) | Gamma-valerolactone hydrogenation catalyst, preparation method and the method for being used to prepare 1,4- pentanediol and 2- methyltetrahydrofuran | |
| CN110305330B (en) | To CO2Iron-based metal organic framework material with high catalytic activity in cycloaddition reaction and preparation method and application thereof | |
| CN105233878A (en) | Synthesis method for metal-loaded-type MIL-101 bio-oil hydrogenation catalyst | |
| CN111217657B (en) | Method for synthesizing methyl cyclopentadiene from 3-methyl-2-cyclopentene-1-ketone | |
| CN102350359B (en) | Preparation method of load-type cobalt-based catalyst | |
| CN107376936B (en) | Platinum-cobalt/attapulgite catalyst and preparation method and application thereof | |
| CN102294251B (en) | Nano-oxide catalyst for preparing propylene by oxidative dehydrogenation of propane and preparation method thereof | |
| CN111589468B (en) | Difunctional catalyst, preparation and one-step method for synthesizing 2, 5-furan dialkyl ether by using 5-hydroxymethylfurfural | |
| CN104707646A (en) | Catalyst for toluene preparation through oxidative dehydrogenation of dimethyl ether, preparation method and applications thereof | |
| CN110699108A (en) | Method for preparing hydrocarbon diesel oil by hydrogenolysis of biological oil based on cobalt catalyst | |
| CN102911693A (en) | Fischer-Tropsch synthesis method by employing mixed catalyst | |
| CN101973537A (en) | Method for preparing transition metal phosphide | |
| CN104710276A (en) | Method for preparing cyclohexanol and/or cyclohexanone through microwave heating | |
| CN105727972A (en) | Preparation method of catalyst for methane reforming with carbon dioxide to synthetic gas | |
| CN109675638B (en) | Composite catalytic material, preparation method and application in-situ dehydrogenation hydrogenation reaction mediated preparation of 2, 5-dimethylfuran | |
| CN103709010A (en) | Method for synthesizing cyclohexanol by reacting cyclohexene, carboxylic acid and water | |
| CN100484913C (en) | Method for synthesis of orthooctylamine | |
| CN104415783B (en) | A kind of dimethyl ether oxidative dehydrogenation prepares the catalyst and preparation method and application of oxirane | |
| CN105727979B (en) | A kind of method for preparing catalyst for preparing propene by oxidative dehydrogenation of propane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |