CN104497063A - Efficient catalytic and crystal habit control method for synthesis of methyl glucoside by woody fiber and starch - Google Patents

Efficient catalytic and crystal habit control method for synthesis of methyl glucoside by woody fiber and starch Download PDF

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CN104497063A
CN104497063A CN201410804751.9A CN201410804751A CN104497063A CN 104497063 A CN104497063 A CN 104497063A CN 201410804751 A CN201410804751 A CN 201410804751A CN 104497063 A CN104497063 A CN 104497063A
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methyl glucoside
reaction
control method
catalyst
woody
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CN104497063B (en
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徐俊明
蒋剑春
冯君锋
李静
夏海虹
刘朋
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Institute of Chemical Industry of Forest Products of CAF
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
    • C07H15/02—Acyclic radicals, not substituted by cyclic structures
    • C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
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    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
    • B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H1/00—Processes for the preparation of sugar derivatives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H1/00—Processes for the preparation of sugar derivatives
    • C07H1/06—Separation; Purification

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Abstract

The invention discloses an efficient catalytic and crystal habit control method for synthesis of methyl glucoside by woody fiber and starch. The method comprises the following steps: S1, preparing a mesoporous material as a catalyst carrier by a hydrothermal synthesis method, and then bonding a toluenesulfonate anion, a sulfate radical and an acidic ion liquid by virtue of a chemical reaction to the surface of the carrier to obtain an efficient catalyst; S2, weighing woody raw materials (bamboo chips, poplar chips, cellulose, acorn starch and the like), methanol and the catalyst in a mass ratio of 100: (400-1200): (1-10), and simultaneously adding into a high-pressure reaction kettle; maintaining the reaction temperature at about 100-200 DEG C for 0.5-8 hours; after reaction, carrying out suction filtration to recover the catalyst; after recovering methanol by distillation at reduced pressure, adding a mixed crystallization solvent (comprising a basic solvent and a cosolvent) into the filtrate to crystallize, and filtering to obtain a white crystal product, namely methyl glucoside. The conversion ratio of the woody raw materials is 80-99%, the product yield is 50-85%, and the melting range is 169-171 DEG C.

Description

The efficient catalytic of a kind of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant
Technical field
The invention belongs to biomass functional product preparation field, relate generally to and adopt the chemical used catalyst of renewable resources synthetic environment close friend and the novel method of aftertreatment.
Background technology
Methyl glucoside is white or buff powder, slightly sweet taste, and soluble in water, the easy moisture absorption, stable performance, the shelf lives is long.The main initiator be used as in the synthesis of the polyvalent alcohol such as polyethers, polyester, can improve the compatibleness with whipping agent, foam compressive strength, dimensional stability, temperature tolerance etc. are improved.Therefore successful is better than other polyvalent alcohol initiator.This product can also be used for melamine resin and resol comonomer substitute component, its mobility can be strengthened, accelerate setting rate, can also as resin moderated dose " gained resin can be used for insulating material and the material of construction such as glued board, decorative sheet, glass wool, rock wool; improve the quality of products, reduce costs, and also can be used for the properties-correcting agent of the tackiness agents such as trimeric cyanamide, formaldehyde, phenolic aldehyde, urea aldehyde; improve toughness and the stability of glue, reduce content of free aldehyde.This product is applied also comparatively extensive in tensio-active agent, for (Li great Hu, starch alcoholysis One-step production methyl glucoside, Sichuan chemical industry, 2006,9 (2): 5-6) such as many washing composition, makeup.Traditional method adopts sulfuric acid, toluenesulphonic acids as catalyzer, and equipment corrosion is serious, and environmental pollution is large.
Summary of the invention
In order to solve the shortcoming that prior art middle strong acidity catalytic erosion is serious, product purity is not high, the efficient catalytic that the invention provides a kind of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant, and catalytic efficiency is high, product degree of crystallinity is high, purity is high.
Technical scheme of the present invention is: the efficient catalytic of a kind of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant, comprises the following steps:
The first step, prepare catalyst of mesoporous material: adopt hydrothermal synthesis method to prepare mesoporous material as support of the catalyst, then tosylate, sulfate radical, persulfate or acidic ion liquid are bonded to the obtained an acidic catalyst in mesoporous material surface by chemical reaction;
Second step, in mass ratio m woody raw material: m methyl alcohol: m an acidic catalystthe ratio of=100:400 ~ 1200:1 ~ 10, take woody raw material, methyl alcohol and an acidic catalyst to join in autoclave simultaneously, temperature of reaction remains on 100 DEG C-200, reaction pressure is 1-2MPa reaction 0.5 ~ 8 hour, after reaction terminates, suction filtration reclaims catalyzer, filtrate is reclaimed after methyl alcohol through underpressure distillation, adds mixed crystallization solvent crystallization, obtains white crystalline product after filtration and be methyl glucoside; Solvent and solubility promoter composition based on described mixed crystallization solvent, described base solvent is low-carbon alcohol.
Described support of the catalyst be in mesoporous silicon, mesoporous zirconium, mesoporous titanium any one, or zirconium, titanium, tin element are incorporated into any one in mesoporous silicon.
When zirconium, titanium, tin element are incorporated into mesoporous silicon, the proportioning raw materials of reaction, for zirconium: Zr 4+, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.01-0.1:1:0.67:0.2:102.
Described acidic ion liquid is bonded to mesoporous material surface by chemical reaction to carry out particular by silane resin acceptor kh-550.
Described an acidic catalyst be introduce in the acidic-group of PS or Isosorbide-5-Nitrae-butane sultone and sulfate radical, phosphate radical compound on mesoporous material any one.
Described base solvent comprises methyl alcohol, ethanol, Virahol, and solubility promoter comprises acetone, ethyl acetate, water.
In described mixed crystallization solvent, the mass ratio of base solvent and solubility promoter is 100:5 ~ 10.
It is any number of that described woody raw material comprises in bamboo bits, poplar bits, Mierocrystalline cellulose, acorn starch.
Beneficial effect:
1. acid sites and carrier form chemical bonding, not easily run off in the reaction, and catalyzer repeat performance is better.
2. adopt comparatively strong acidic activity center, and match with carrier, form super acids center, improve feedstock conversion efficiency.
3. the crystalline product crystal habit adopting suitable mixed crystallization solvent to obtain is good, purity is high, melting range is short.The woody feed stock conversion 80-99% of raw material, product yield 50-85%, melting range 169-171 DEG C.
Accompanying drawing explanation
Fig. 1 is that the space lattice of the methyl glucoside of crystal form is structured the formation.
Embodiment
The efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises a control method with brilliant, comprises the following steps:
The first step, hydrothermal synthesis method obtains mesoporous material as support of the catalyst, afterwards tosylate, sulfate radical and acidic ion liquid is bonded to carrier surface by chemical reaction and obtains effective catalyst;
Second step, in mass ratio m woody raw material: m methyl alcohol: m catalyzerthe ratio of=100:400 ~ 1200:1 ~ 10, takes woody raw material (bamboo bits, poplar bits, Mierocrystalline cellulose, acorn starch etc.), methyl alcohol and catalyzer and joins in autoclave simultaneously.Temperature of reaction remains on 100 DEG C of about-200 reaction 0.5 ~ 8 hour.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, adds mixed crystallization solvent (comprising base solvent and solubility promoter) crystallization, obtains white crystalline product after filtration and be methyl glucoside.
Embodiment 1:
M in mass ratio bamboo is considered to be worth doing: m methyl alcohol: m catalyzerthe ratio of=100:800:5, by bamboo bits, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, wherein the synthesis ratio Zr (SO of mesoporous silicon 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 180 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add water and isolate xylogen, add mixed crystallization solvent (comprising base solvent methyl alcohol 95% and solubility promoter water 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, bamboo bits transformation efficiency 66%, product yield 8%, melting range 149-155 DEG C.
Embodiment 2:
M in mass ratio poplar is considered to be worth doing: m methyl alcohol: m catalyzerthe ratio of=100:800:5, by poplar bits, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, mesoporous silicon synthesis ratio Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 180 DEG C of reactions 2 hours, reaction pressure 1.0MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add water and isolate xylogen, add mixed crystallization solvent (comprising base solvent alcohol 95 % and solubility promoter water 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, poplar bits transformation efficiency 70%, product yield 18%, melting range 153-157 DEG C.
Embodiment 3:
M in mass ratio mierocrystalline cellulose: m methyl alcohol: m catalyzerthe ratio of=100:800:5, by Mierocrystalline cellulose, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, mesoporous silicon synthesis ratio Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 180 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (comprising base solvent alcohol 95 % and solubility promoter ethyl acetate 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, cellulose conversion rate 76%, product yield 35%, melting range 163-166 DEG C.
Embodiment 4:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:800:5, by acorn starch, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, mesoporous silicon synthesis ratio Ti (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (comprising base solvent alcohol 95 % and cosolvent acetone 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 96%, product yield 65%, melting range 168-171 DEG C.
Embodiment 5:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:400:1, by acorn starch, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, mesoporous silicon synthesis ratio Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 1.0MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (comprising base solvent Virahol 95% and solubility promoter ethyl acetate 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 74%, product yield 45%, melting range 165-168 DEG C.
Embodiment 6:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:1200:10, by acorn starch, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, mesoporous silicon synthesis ratio Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (comprising base solvent alcohol 95 % and solubility promoter ethyl acetate 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 94%, product yield 75%, melting range 169-171 DEG C.
Embodiment 7:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:800:5, by acorn starch, methyl alcohol and catalyzer, (mesoporous silicon of tin element is introduced in sulfate radical load, the mesoporous silicon synthesis ratio SnCl of tin element 4, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 1.0MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (comprising base solvent alcohol 95 % and solubility promoter ethyl acetate 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 84%, product yield 65%, melting range 167-169 DEG C.
Embodiment 8:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:800:5, joins acorn starch, methyl alcohol and catalyzer (mesoporous silicon is carrier, the acidic-group of load Isosorbide-5-Nitrae-butane sultone and sulfate radical compound) in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (comprising base solvent alcohol 95 % and solubility promoter ethyl acetate 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 87%, product yield 67%, melting range 167-169 DEG C.
Embodiment 9-14:
Except for the following differences, other are identical with embodiment 6.
Embodiment 15:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:1200:10, by acorn starch, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, mesoporous silicon synthesis ratio Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, adds mixed crystallization solvent (alcohol 95 %-water 5%) crystallization, obtains white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 94%, product yield 75%, melting range 169-171 DEG C.
Embodiment 16:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:1200:10, by acorn starch, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, mesoporous silicon synthesis ratio Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (Virahol 95%wt-water 5%wt) crystallization, obtain white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 94%, product yield 75%, melting range 169-171 DEG C.
Embodiment 17:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:1200:10, by acorn starch, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, synthesis ratio Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (alcohol 95 %wt-ethyl acetate 5%wt) crystallization, obtain white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 94%, product yield 75%, melting range 169-171 DEG C.
Embodiment 18:
M in mass ratio acorn starch: m methyl alcohol: m catalyzerthe ratio of=100:1200:10, by acorn starch, methyl alcohol and catalyzer (ionic liquid loaded mesoporous silicon, synthesis ratio Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.05:1:0.67:0.2:102) join in autoclave simultaneously.Temperature of reaction remains on 120 DEG C of reactions 2 hours, reaction pressure 0.9MPa.After reaction terminates, suction filtration reclaims catalyzer.Filtrate is reclaimed after methyl alcohol through underpressure distillation, add mixed crystallization solvent (methyl alcohol 95%-acetone 5%) crystallization, obtain white crystalline product after filtration and be methyl glucoside, acorn starch transformation efficiency 94%, product yield 75%, melting range 169-171 DEG C.
Embodiment 19:
Zirconium, titanium, tin element are incorporated into the carrying method (for zirconium) of method in mesoporous silicon and sulfate radical thereof, persulfate:
Zr (SO 4) 2, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.01-0.1:1:0.67:0.2:102.Synthesis step is as follows: zirconium saline solution is added the CTMABr aqueous solution by (1); (2) with vigorous stirring, add water glass and tetraethyl orthosilicate, and adjust pH to be 8-9 with ammoniacal liquor; (3) 3h is stirred under normal temperature; (4) moved into by mixture in teflon-lined stainless steel reactor, sealing, is placed in baking oven in 100 DEG C of crystallization 24h; (5) after crystallization terminates, crystalline solid product is separated with mother liquor, with deionized water wash to neutral; (6) at 60 DEG C of dry 12h, mesoporous supports is obtained.Flood with the sulfuric acid of concentration 2M, 550 DEG C of roasting 3h in muffle furnace, obtain mesopore metal oxide solid acid catalyst finished product.
The presoma of mesoporous silicon, mesoporous zirconium, mesoporous titanium is respectively tetraethyl orthosilicate, zirconium oxychloride or zirconium sulfate, titanium sulfate.Sulfate radical can be introduced by sulfuric acid or ammonium sulfate, and persulfate is introduced by ammonium persulphate.Tosylate is introduced by toluenesulphonic acids.
Embodiment 20:
The carrying method of mesoporous silicon, mesoporous zirconium, mesoporous titanium and acidic ion liquid thereof:
Mesoporous supports is prepared according to embodiment 19.Load step is as follows:
(1) by mesoporous supports 5g, silane resin acceptor kh-550 15mL, toluene 25mL puts into reactor, back flow reaction 10 hours, suction filtration afterwards, washing with alcohol, 105 DEG C of dryings.
(2) (1) products obtained therefrom and PS 5g are reacted 3h at 80 DEG C, afterwards suction filtration, ethyl acetate is washed, 105 DEG C of dryings.
(3) (2) products obtained therefrom and 1g sulfuric acid (or phosphoric acid), 20mL water are reacted 3h at 80 DEG C, rotary evaporation, 105 DEG C of dryings, obtain finished catalyst.(mesoporous silicon is the acidic-group of carrier, load PS and sulfate radical compound) mechanism is as follows:

Claims (8)

1. the efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises a control method with brilliant, it is characterized in that, comprises the following steps:
The first step, prepare catalyst of mesoporous material: adopt hydrothermal synthesis method to prepare mesoporous material as support of the catalyst, then tosylate, sulfate radical, persulfate or acidic ion liquid are bonded to the obtained an acidic catalyst in mesoporous material surface by chemical reaction;
Second step, in mass ratio m woody raw material: m methyl alcohol: m an acidic catalystthe ratio of=100:400 ~ 1200:1 ~ 10, take woody raw material, methyl alcohol and an acidic catalyst to join in autoclave simultaneously, temperature of reaction remains on 100 DEG C-200, reaction pressure is 1-2MPa reaction 0.5 ~ 8 hour, after reaction terminates, suction filtration reclaims catalyzer, filtrate is reclaimed after methyl alcohol through underpressure distillation, adds mixed crystallization solvent crystallization, obtains white crystalline product after filtration and be methyl glucoside; Solvent and solubility promoter composition based on described mixed crystallization solvent, described base solvent is low-carbon alcohol.
2. the efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant as claimed in claim 1, it is characterized in that, described support of the catalyst be in mesoporous silicon, mesoporous zirconium, mesoporous titanium any one, or zirconium, titanium, tin element are incorporated into any one in mesoporous silicon.
3. the efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant as claimed in claim 2, and it is characterized in that, when zirconium, titanium, tin element are incorporated into mesoporous silicon, the proportioning raw materials of reaction, for zirconium: Zr 4+, SiO 2, Na 2o, CTMABr and H 2the mol ratio of O is 0.01-0.1:1:0.67:0.2:102.
4. the efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant as claimed in claim 1, it is characterized in that, described acidic ion liquid is bonded to mesoporous material surface by chemical reaction to carry out particular by silane resin acceptor kh-550.
5. the efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant as claimed in claim 1, it is characterized in that, described an acidic catalyst is introduce 1 on mesoporous material, any one in the acidic-group of 3-propane sultone or Isosorbide-5-Nitrae-butane sultone and sulfate radical, phosphate radical compound.
6. the efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant as claimed in claim 1, and it is characterized in that, described base solvent comprises methyl alcohol, ethanol, Virahol, and solubility promoter comprises acetone, ethyl acetate, water.
7. the efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant as claimed in claim 1, and it is characterized in that, in described mixed crystallization solvent, the mass ratio of base solvent and solubility promoter is 100:5 ~ 10.
8. the efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant as claimed in claim 1, it is characterized in that, it is any number of that described woody raw material comprises in bamboo bits, poplar bits, Mierocrystalline cellulose, acorn starch.
CN201410804751.9A 2014-12-22 2014-12-22 A kind of efficient catalytic of woody fiber and Starch synthesis methyl glucoside practises control method with brilliant Expired - Fee Related CN104497063B (en)

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