CN104478718B - The method of methyl ester levulinate prepared by the polynite catalysis biomass sugar of acidifying - Google Patents

The method of methyl ester levulinate prepared by the polynite catalysis biomass sugar of acidifying Download PDF

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CN104478718B
CN104478718B CN201410778367.6A CN201410778367A CN104478718B CN 104478718 B CN104478718 B CN 104478718B CN 201410778367 A CN201410778367 A CN 201410778367A CN 104478718 B CN104478718 B CN 104478718B
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polynite
methyl ester
ester levulinate
acidifying
biomass sugar
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CN104478718A (en
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田戈
徐兴良
张显龙
冯守华
邹伟健
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Jilin University
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    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/16—Clays or other mineral silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/02—Sulfur, selenium or tellurium; Compounds thereof

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Abstract

The method of methyl ester levulinate prepared by the polynite catalysis biomass sugar of acidifying of the present invention, belongs to the technical field of organic synthesis.With biomass sugar and methyl alcohol for raw material, sulfation polynite or Hydrogen polynite are solid acid catalyst, react 2 ~ 5h synthesis of acetyl methyl propionate in a kettle. at temperature of reaction 160 ~ 220 DEG C.Sulfation polynite or Hydrogen polynite carry out vitriolization to polynite to filter after washing or calcine obtained.The present invention provides new solid acid catalyst and a new reaction scheme for biomass sugar is converted into methyl ester levulinate, can prepare methyl ester levulinate by the condition of simple catalyzer and gentleness.Methyl ester levulinate is of many uses as a kind of important platform chemicals in Wood Adhesives from Biomass process, can be used as foodstuff additive, spices, and gasoline dope, biofuel etc.

Description

The method of methyl ester levulinate prepared by the polynite catalysis biomass sugar of acidifying
Technical field
The invention belongs to the technical field of organic synthesis, the method of methyl ester levulinate prepared by the polynite catalysis biomass sugar be specifically related to based on acidifying, the method adopt the polynite of acidifying be solid acid catalyst under mild conditions conversion of biomass sugar prepare methyl ester levulinate.
Background technology
Use many reasons such as Nonrenewable resources due to the fluctuation of global warming, oil supply, the increase of crude oil price and existing regulation limitations, in the past few decades, seek to utilize renewable resources production chemical products and fuel to receive much concern.In these renewable resourcess, due to biomass sugar wide material sources, various informative, conversion of biomass sugar synthesizes more value product (as levulinic acid or methyl ester levulinate) and receives much concern.
Methyl ester levulinate is of many uses as a kind of important platform chemicals in Wood Adhesives from Biomass process, can be used as foodstuff additive, spices, and gasoline dope, biofuel etc.In addition, containing ester group and carbonyl in methyl ester levulinate molecule, be short-chain aliphatic ester, chemical reactivity is very high, easily replace, be hydrolyzed, transesterify, addition, the reaction such as redox, application prospect is extensive.
At present, the production method of methyl ester levulinate mainly contains levulinic acid esterification method, furfuryl alcohol alcoholysis method, biomass sugar alcoholysis method.Levulinic acid esterification method and furfuryl alcohol alcoholysis method are all under an acidic catalyst, with levulinic acid or sugar alcohol for raw material, react generate methyl ester levulinate with methyl alcohol.This method equipment is simple, productive rate is high, but expensive starting materials, cause the production cost of methyl ester levulinate to improve.Biomass sugar alcoholysis method directly utilizes biomass sugar for raw material is under an acidic catalyst, and direct and methyl alcohol reacts and generates methyl ester levulinate, and the method is with low cost, technique is simple.The method selects suitable catalyzer most important, and some homogeneous catalysts (as sulfuric acid and metal-salt) are commonly used.But these homogeneous catalysts exist some problems, the cycling and reutilization of such as catalyzer, the separation of product, to the corrosion etc. of equipment.Solid acid catalyst is due to reusable, and environmental pollution is few, is easy to the advantages such as product separation, is widely used in biomass sugar alcoholysis and prepares methyl ester levulinate.Although wherein some solid acid catalysts have higher catalytic activity, expensive starting materials, preparation is complicated, and condition is harsh.Therefore develop cheapness, efficient catalyzer, prepared by methyl ester levulinate for biomass sugar there is important value.
" a kind of method that solid acid catalysis high yield prepares levulinate " with the immediate patent of the present invention, patent No. ZL:201310317237.8.Method disclosed in this patent, is the alcohol of the sugar of 1 weight part, 10 ~ 100 weight parts, 0.01 ~ 0.2 weight part B L acid that is sour and 0.1 ~ 1 weight part are mixed, reacts 1 ~ 20h, obtain methyl ester levulinate solution at 130 ~ 190 DEG C of temperature; L acid used is stanniferous molecular sieve, and B acid is the one in SBA-15-SO3H, Carbon-SO3H or Amberlyst-15.
Summary of the invention
The problem to be solved in the present invention is under the reaction conditions of gentleness, provide a kind of equipment simple, and reactive behavior is high, processing ease and the low method preparing methyl ester levulinate of cost.
Object of the present invention realizes by the following technical solutions:
The method of methyl ester levulinate prepared by a kind of polynite catalysis biomass sugar of acidifying, the polynite of biomass sugar, methyl alcohol and acidifying is loaded in autoclave, mix, react 2 ~ 5 hours at 160 ~ 220 DEG C after sealing, cooled and filtered obtains methyl ester levulinate solution; Wherein, the mass volume ratio of biomass sugar and methyl alcohol is 9mg/mL, and the mass ratio of the polynite of biomass sugar and acidifying is 1.8: 1 ~ 2; The polynite of described acidifying is Hydrogen polynite (H-MMT) or sulfation polynite (SO 4 2-/ MMT).
Described biomass sugar is glucose, fructose, sucrose, starch or Mierocrystalline cellulose.
The preparation method of described Hydrogen polynite is: polynite being joined mass concentration is in the sulphuric acid soln of 5% ~ 30%, and the mass volume ratio of polynite and sulphuric acid soln is 0.02g/mL; Be heated to 100 DEG C of stirring reactions 0.5 ~ 2 hour, stop heating continuing stirring 0.5 ~ 1 hour; The filtering slurry obtained, with deionized water wash to remove sulfuric acid; 120 DEG C of dryings obtain Hydrogen polynite (H-MMT) in 20 ~ 24 hours.Final grey powder called after n-H-MMT, wherein " n " represents the concentration of sulfuric acid, n=5 ~ 30.
The preparation method of described sulfation polynite is: polynite being joined mass concentration is in the sulphuric acid soln of 5% ~ 30%, and the mass volume ratio of polynite and sulphuric acid soln is 0.02g/mL; Be heated to 100 DEG C of stirring reactions 0.5 ~ 2 hour, stop heating continuing stirring 0.5 ~ 1 hour; The filtering slurry obtained, calcines and within 5 hours, obtains sulfation polynite (SO at 500 DEG C 4 2-/ MMT).Final powder called after n-SO 4 2-/ MMT, wherein " n " represents the concentration of sulfuric acid, n=5 ~ 30.
Described polynite is purchased from the K-10 polynite of Aladdin Reagent Company.Preferred sulfation polynite is 20-SO 4 2-/ MMT.Reasonable Hydrogen polynite is 20-n-MMT.
Can be determined by embodiment 3,4,9,10, preferred biomass sugar is glucose or fructose, and the polynite of preferred acidifying is the sulfation polynite (20-SO obtained through calcining with the sulphuric acid soln process that mass concentration is 20% 4 2-/ MMT), preferred reaction conditions is react 4h at 200 ~ 220 DEG C.
Reacted principal product is methyl ester levulinate, and main by product is humin, unreacted methyl alcohol reusable edible in reaction process.
In solid acid catalyst, polynite wide material sources, cheap, environmental friendliness.But due to the acidity that original soil is lower, limit the utilization of polynite.The laminated structure that the present invention utilizes polynite special goes out the polynite of acidifying by modification and Modification design, prepares methyl ester levulinate with its catalysis biomass sugar, and obtains higher productive rate.
Compared with prior art, used catalyst of the present invention is the polynite of vitriolization, and raw material is easy to get, with low cost; Described catalyst preparing is simple, reusable; This catalysis itself possesses B acid and L acid simultaneously, without the need to using B acid and L acid catalyst respectively.The preferred biomass sugar of the present invention and methyl alcohol and usage ratio, and reaction conditions is gentle, low for equipment requirements, only need the reactor of sealing, equipment is simple, processing ease, and make the productive rate of methyl ester levulinate (total mole number of the mole number/reactant of methyl ester levulinate) reach 65%.
Accompanying drawing explanation
Fig. 1 is the gas-chromatography contrast figure of product methyl ester levulinate and methyl ester levulinate standard substance in embodiment 3.In Fig. 1 retention time 5.77 be methyl ester levulinate retention time 7.28 be naphthalene (internal standard substance).
Fig. 2 is the mass spectrum contrast figure of product methyl ester levulinate and methyl ester levulinate standard substance in embodiment 3.In Fig. 2, A is the mass spectrum of methyl ester levulinate standard substance; B is the mass spectrographic mass spectrum of the methyl ester levulinate in sample.
Fig. 3 is the 20-SO that embodiment 2 obtains 4 2-the XRD figure of/MMT catalyzer.
Fig. 4 is the XRD figure of the K10-montmorillonite catalyst that comparative example 2 uses.
Embodiment
Below by embodiment, the present invention is described, but is not limited to this.
Embodiment 1
The preparation method of described Hydrogen polynite is: the K10-polynite of 1g joined in the sulphuric acid soln (sulphuric acid soln mass concentration 20%) of 50ml, be heated to 100 DEG C of stirring reactions 0.5 ~ 2 hour, stops heating continuing stirring 0.5 ~ 1 hour.The filtering slurry obtained, repeatedly washs to remove sulfuric acid with deionized water, and 120 DEG C of dry diels obtain H-MMT subsequently.Final grey powder called after 20-H-MMT.
Sulphuric acid soln concentration 20% is replaced with 5%, 10% or 30%, and the grey powder finally obtained is called after 5-H-MMT, 10-H-MMT or 30-H-MMT respectively.And catalysis biomass sugar can be used for as catalyzer and prepare methyl ester levulinate.
Embodiment 2
The preparation method of described Sulfated polynite is: the K10-polynite of 1g joined in the sulphuric acid soln (sulphuric acid soln mass concentration 20%) of 50ml, be heated to 100 DEG C of stirring reactions 0.5 ~ 2 hour, stop heating continuing stirring 0.5 ~ 1 hour.The filtering slurry obtained, 500 DEG C of calcining 5h obtain SO subsequently 4 2-/ MMT.Final powder called after 20-SO 4 2-/ MMT (wherein 20 represent that sulphuric acid soln mass concentration used is 20%), can be used for catalysis biomass sugar as catalyzer and prepare methyl ester levulinate.
Fig. 3 provides the obtained 20-SO of the present embodiment 4 2-the XRD figure of/MMT catalyzer.
H 2 so 4 concentration 20% is replaced with 5%, 10% or 30%, and the powder finally obtained is called after 5-SO respectively 4 2-/ MMT, 10-SO 4 2-/ MMT or 30-SO 4 2-/ MMT.And catalysis biomass sugar can be used for as catalyzer and prepare methyl ester levulinate.
Embodiment 3
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Fig. 1 provides the gas-chromatography of product methyl ester levulinate, and compares with the gas-chromatography of methyl ester levulinate standard substance.Fig. 2 provides the mass spectrum of product methyl ester levulinate, and contrasts with the mass spectrum of methyl ester levulinate standard substance.
Gas chromatograph-mass spectrometer (GC-MS model is TRACEDSQ) is utilized to detect gained solution.According to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 3 product is 48%.
Embodiment 4
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 220 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 4 product is 46%.
Embodiment 5
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 180 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, in embodiment 5, the molar yield of methyl ester levulinate is 38%.
Embodiment 6
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 160 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 7 product is 20%.
Embodiment 7
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.1g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 7 product is 44%.
Embodiment 8
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.20g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 8 product is 49%.
Embodiment 9
By the 20-SO of 0.18g (1mmol) fructose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 9 product is 65%.
Embodiment 10
By the 20-SO of 0.18g (0.5mmol) sucrose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 10 product is 44%.
Embodiment 11
By the 20-SO of the starch of 0.18g and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 11 product is 44%.
Embodiment 12
By the 20-SO of the Mierocrystalline cellulose of 0.18g and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 11 product is 24%.
Embodiment 13
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 1h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, the molar yield that can calculate methyl ester levulinate in embodiment 12 product is 10%.
Embodiment 14
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 2h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, the molar yield that can calculate methyl ester levulinate in embodiment 13 product is 20%.
Embodiment 15
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 3h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, the molar yield that can calculate methyl ester levulinate in embodiment 14 product is 41%.
Embodiment 16
0.18g (1mmol) glucose and 20-H-MMT catalyzer 0.15g and anhydrous methanol 20ml are put into the autoclave that volume is 30mL, after closed reactor, 4h is reacted at 200 DEG C, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, the molar yield that can calculate methyl ester levulinate in embodiment 15 product is 34%.
Embodiment 17
By the 5-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, the molar yield that can calculate methyl ester levulinate in embodiment 16 product is 25%.
Embodiment 18
By the 10-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, the molar yield that can calculate methyl ester levulinate in embodiment 17 product is 32%.
Embodiment 19
By the 30-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 200 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, the molar yield that can calculate methyl ester levulinate in embodiment 18 product is 43%.
Comparative example 1
By the 20-SO of 0.18g (1mmol) glucose and 500 DEG C of roasting 5h 4 2-/ MMT catalyzer 0.15g and anhydrous methanol 20ml puts into the autoclave that volume is 30mL, after closed reactor, at 140 DEG C, react 4h, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, according to concentration-peak area typical curve and peak areas, the molar yield that can calculate methyl ester levulinate in embodiment 5 product is lower.
Comparative example 2
0.18g (1mmol) glucose and K10-montmorillonite catalyst 0.15g and anhydrous methanol 20ml are put into the autoclave that volume is 30mL, after closed reactor, 4h is reacted at 200 DEG C, question response still cooled and filtered obtains methyl ester levulinate solution, add internal standard substance naphthalene (16mg), to be measured.
Utilize gas chromatograph-mass spectrometer (GC-MS, model is TRACEDSQ) to detect gained solution, the molar yield that can calculate methyl ester levulinate in embodiment 19 product is 11%.

Claims (3)

1. the method for methyl ester levulinate prepared by the polynite catalysis biomass sugar of an acidifying, the polynite of biomass sugar, methyl alcohol and acidifying is loaded in autoclave, mix, react 2 ~ 5 hours at 160 ~ 220 DEG C after sealing, cooled and filtered obtains methyl ester levulinate solution; Wherein, the mass volume ratio of biomass sugar and methyl alcohol is 9mg/mL, and the mass ratio of the polynite of biomass sugar and acidifying is 1.8: 1 ~ 2; The polynite of described acidifying is Hydrogen polynite or sulfation polynite; Described Hydrogen polynite, preparation method is: polynite being joined mass concentration is in the sulphuric acid soln of 5% ~ 30%, and the mass volume ratio of polynite and sulphuric acid soln is 0.02g/mL; Be heated to 100 DEG C of stirring reactions 0.5 ~ 2 hour, stop heating continuing stirring 0.5 ~ 1 hour; The filtering slurry obtained, with deionized water wash to remove sulfuric acid; 120 DEG C of dryings obtain Hydrogen polynite in 20 ~ 24 hours; Described sulfation polynite, preparation method is: polynite being joined mass concentration is in the sulphuric acid soln of 5% ~ 30%, and the mass volume ratio of polynite and sulphuric acid soln is 0.02g/mL; Be heated to 100 DEG C of stirring reactions 0.5 ~ 2 hour, stop heating continuing stirring 0.5 ~ 1 hour; The filtering slurry obtained, calcines and obtains sulfation polynite in 5 hours at 500 DEG C.
2. the method for methyl ester levulinate prepared by the polynite catalysis biomass sugar of acidifying according to claim 1, and it is characterized in that, described biomass sugar is glucose, fructose, sucrose, starch or Mierocrystalline cellulose.
3. the method for methyl ester levulinate prepared by the polynite catalysis biomass sugar of acidifying according to claim 1, and it is characterized in that, described biomass sugar is glucose or fructose; The polynite of acidifying is the sulfation polynite obtained through calcining with the sulphuric acid soln process that mass concentration is 20%; Reaction conditions is react 4 hours at 200 ~ 220 DEG C.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6376701B1 (en) * 1995-12-29 2002-04-23 Council Of Scientific & Industrial Research Process for the transesterification of keto esters using solid acids as catalysts
CN102399144A (en) * 2011-09-26 2012-04-04 华南理工大学 Method for preparing methyl levulinate through clean conversion of biomass sugar and separating methyl levulinate
CN103408422A (en) * 2013-07-25 2013-11-27 中科院广州化学有限公司 High-yield levulinic acid ester preparation method under catalysis of solid acid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6376701B1 (en) * 1995-12-29 2002-04-23 Council Of Scientific & Industrial Research Process for the transesterification of keto esters using solid acids as catalysts
CN102399144A (en) * 2011-09-26 2012-04-04 华南理工大学 Method for preparing methyl levulinate through clean conversion of biomass sugar and separating methyl levulinate
CN103408422A (en) * 2013-07-25 2013-11-27 中科院广州化学有限公司 High-yield levulinic acid ester preparation method under catalysis of solid acid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Conversion of carbohydrates to methyl levulinate catalyzed by sulfated montmorillonite;Xingliang Xu et al.;《Catalysis Communications》;20150110;第62卷;67-70 *

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