CN101249443A - Catalyst for producing gluconic acid sodium salt, method of preparing the same and applications - Google Patents
Catalyst for producing gluconic acid sodium salt, method of preparing the same and applications Download PDFInfo
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- CN101249443A CN101249443A CNA2008100204605A CN200810020460A CN101249443A CN 101249443 A CN101249443 A CN 101249443A CN A2008100204605 A CNA2008100204605 A CN A2008100204605A CN 200810020460 A CN200810020460 A CN 200810020460A CN 101249443 A CN101249443 A CN 101249443A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 22
- MSXHSNHNTORCAW-GGLLEASOSA-M sodium;(2s,3s,4s,5r,6s)-3,4,5,6-tetrahydroxyoxane-2-carboxylate Chemical compound [Na+].O[C@H]1O[C@H](C([O-])=O)[C@@H](O)[C@H](O)[C@H]1O MSXHSNHNTORCAW-GGLLEASOSA-M 0.000 title claims description 23
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 31
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000002360 preparation method Methods 0.000 claims abstract description 25
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 67
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 61
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 43
- 238000006243 chemical reaction Methods 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 13
- 239000008103 glucose Substances 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000011149 active material Substances 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 6
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000012295 chemical reaction liquid Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 150000002816 nickel compounds Chemical class 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- UPMFZISCCZSDND-JJKGCWMISA-M sodium gluconate Chemical class [Na+].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O UPMFZISCCZSDND-JJKGCWMISA-M 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 108010015776 Glucose oxidase Proteins 0.000 claims description 2
- 239000004366 Glucose oxidase Substances 0.000 claims description 2
- 229940116332 glucose oxidase Drugs 0.000 claims description 2
- 235000019420 glucose oxidase Nutrition 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000006395 oxidase reaction Methods 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 6
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000176 sodium gluconate Substances 0.000 abstract description 3
- 229940005574 sodium gluconate Drugs 0.000 abstract description 3
- 235000012207 sodium gluconate Nutrition 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000006227 byproduct Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 4
- 230000004151 fermentation Effects 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000009229 glucose formation Effects 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-SQOUGZDYSA-M D-gluconate Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O RGHNJXZEOKUKBD-SQOUGZDYSA-M 0.000 description 1
- PHOQVHQSTUBQQK-SQOUGZDYSA-N D-glucono-1,5-lactone Chemical compound OC[C@H]1OC(=O)[C@H](O)[C@@H](O)[C@@H]1O PHOQVHQSTUBQQK-SQOUGZDYSA-N 0.000 description 1
- 241000270666 Testudines Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000015872 dietary supplement Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940050410 gluconate Drugs 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
The invention relates to a catalyst for preparing sodium gluconate and preparation method and application thereof, which belongs to a chemical material field. The catalyst contains in mass percent: activated carbon 87-99% and mixture of Pt, Pd and Ni 1-13%, wherein the content of Pt, Pd and Ni are respectively 0.1-8%, 0.1-10%, and 0.1-5%. Compared with the prior art, the method for preparation sodium gluconate by using the catalyst is simple and the products are easily separated. The catalyst has the advantages of high catalyst selectivity, relatively low content of byproduct, long service life, low cost and wide industrial application prospect.
Description
Technical field
The present invention relates to a kind of Preparation of catalysts method and application thereof for preparing gluconic acid sodium salt, is to adopt composite catalyst catalytic oxidation of glucose synthesis of glucose acid sodium, belongs to the chemical building material field.
Background technology
Gluconic acid sodium salt is the deep processed product of glucose, be the basic material that preparation glucolactone, gluconate (copper, zinc, ferrous salt) wait, close performance and be widely used in multiple industrial departments such as food, light industry, chemical industry, medicine owing to it has good huge legendary turtle.Can be used as nutritional supplement, curing agent, buffer etc. in food service industry, can be used for plating, metal and nonmetallic surface clean etc. at light industry, mainly as set retarder, is an important component of concrete admixture in cement industry.In general, gluconic acid sodium salt has vast market prospect and application space.
The manufacturer of domestic production gluconic acid sodium salt is less at present, and production technology is complicated, and production cost is also higher.Main production methods has fermentation method, electrolytic oxidation and chemical synthesis.Fermentation method asepticize during the fermentation requires height, the bad control of the color and luster of product, and the fermentation temperature retention time is long, severe reaction conditions, economic benefit is bad.Electrolytic oxidation has a utmost point to waste in electrolytic process, and it is bigger to consume energy, and cost is also higher, and is domestic still at the experimental stage.Chemical synthesis technology is simple, reacting balance, reaction condition gentleness, is a kind of technology advanced in numerous methods.At present chemical method mainly contains hypochlorite oxidation method, hydrogen peroxide oxidation process, multi-component alloy catalytic oxidizing process and makes the catalytic oxidation of catalyst with noble metal, wherein mainly contains Pd-C, Pt-C, Pd-CaCO with what noble metal was made catalyst
3, Pd-Al
2O
3Deng.On suitability for industrialized production, generally adopt palladium/carbon catalysis-NaOH oxidizing process to produce gluconic acid sodium salt both at home and abroad, this method has that technology is simple, reaction condition is gentle, reaction time characteristics such as weak point, conversion ratio height relatively, but exist catalyst amount big and actively easily descend, side reaction is more, product is difficult to shortcomings such as separation, cause the cost performance of product to reduce, so be necessary to further investigate Preparation of Sodium Gluconate.
Summary of the invention
The object of the invention is to provide reaction selectivity height in a kind of gluconic acid sodium salt preparation, the Catalysts and its preparation method of the gluconic acid sodium salt that accessory substance is less relatively.Adopt platinum, palladium, the composite catalyst of Ni on active carbon of preparation, prepare gluconic acid sodium salt by heterogeneous catalytic oxidation glucose.
A kind of catalyst for preparing gluconic acid sodium salt is characterized in that being made up of following component by percentage to the quality:
(1) carrier: active carbon, content are 87%-99%;
(2) active material: platinum, palladium, nickel mixture, total content are 1%-13%, and wherein platinum content is 0.1%-8%, and palladium content is 0.1%-10%, and nickel content is 0.1%-5%.
A kind of Preparation of catalysts method for preparing gluconic acid sodium salt is characterized in that may further comprise the steps:
(1) in dry activated carbon, adds entry, active carbon is suspended in water;
(2) nickel oxide is dissolved in the hydrochloric acid, to wherein adding the chlorine palladium acid solution that platinum acid chloride solution that mass concentration is 25%-30% and mass concentration are 20%-25%, mixing and stirring;
(3) above suspension and solution are mixed mutually, be warmed up to 65 ℃-75 ℃, add NaOH solution, make suspension be alkalescence, the pH value is 8-10;
(4) in the time of 65 ℃-75 ℃, stirred 0.5-1 hour, add formalin, reduction platinum, palladium, nickel compound;
(5) filter, wash, make the composite catalyst of activated carbon supported platinum, palladium, nickel.
The active carbon, nickel oxide, platinum acid chloride solution, the chlorine palladium acid solution amount that add in (6) (1) steps and (2) step are determined by following relation:
Carrier: active carbon, content are 87%-99%;
Active material: platinum, palladium, nickel mixture, total content are 1%-13%, and wherein nickel content is 0.1%-5%, and platinum content is 0.1%-8%, and palladium content is 0.1%-10%.
A kind of application rights requires the method for 1 or 2 described Preparation of Catalyst gluconic acid sodium salts, it is characterized in that may further comprise the steps:
(1) add above-mentioned catalyst in glucose solution, wherein the mass ratio of catalyst consumption and glucose is 1.5%-2.5%, and stirring reaction liquid also is warming up to 40 ℃-60 ℃, at this moment aerating oxygen;
(2) in course of reaction, drip NaOH solution, keep reactant liquor to be alkalescence, insulation reaction 2-4 hour;
(3) reaction finishes the back filtering catalyst, and in order to reusing, condensing crystallizing gets gluconic acid sodium salt.
The catalyst of the present invention's preparation, by load platinum, palladium, nickel on absorbent charcoal carrier, make catalyst have good reactivity, produce synergy between platinum, palladium, the nickel, improved the reaction stability of catalyst, change the electronic structure of catalyst and formed different defect sturctures, improved catalytic performance.Compared with prior art, remarkable advantage of the present invention is:
(1) use this novel composite catalyst heterogeneous catalytic oxidation glucose to prepare gluconic acid sodium salt, method is simple, and the product that is generated is easy to separate;
(2) composite catalyst among the present invention is compared palladium carbon catalyst commonly used, and its catalytic activity slightly reduces, but has improved reaction selectivity, and accessory substance is less relatively;
(3) the composite catalyst life-span among the present invention longer, reusable more than 10 times, and selectively changing is little;
(4) composite catalyst of the present invention's use is cheaper than simple palladium carbon catalyst, has wide prospect in industrial application.
Description of drawings
Fig. 1 is the preparation flow of composite catalyst catalytic oxidation of glucose synthesis of glucose acid sodium.
Concrete form of implementation
Embodiment 1: the preparation of composite catalyst
1, in dry activated carbon 45g (granularity 200 orders), adds 50ml water, active carbon is suspended in water.
2, with 2.54g nickel oxide (nickeliferous 2 gram), be dissolved in 9.9ml concentration and be in 25% the hydrochloric acid, to wherein adding 7 gram platinum acid chloride solutions (mass concentration is 30%, platiniferous 1 gram) and 18.8 gram chlorine palladium acid solutions (mass concentration is 25%, contains palladium 2 and restrains), stir.
3, above suspension and solution are mixed mutually, be warmed up to 75 ℃, adding 30.7 gram concentration are 15% NaOH solution (containing the NaOH4.6 gram), make suspension be alkalescence, and the pH value is 10.
4, stir half an hour in the time of 75 ℃, adding 10.19ml concentration is 37% formalin, reduction platinum, palladium, nickel compound.
5, filter, wash, make the composite catalyst A of activated carbon supported platinum, palladium, nickel, wherein platiniferous 2% (mass ratio), palladium 4% (mass ratio) and nickel 4% (mass ratio).
Embodiment 2: other several Preparation of catalysts
Prepare catalyst according to the condition identical with embodiment 1, just change the kind and the percentage by weight of catalyst component, make catalyst B, C, D, E, F, G respectively, catalyst is formed and is seen Table 1.
Table 1 catalyst is formed
| Catalyst | Catalyst is formed (% by mass percentage) |
| A | C：90，Pt：2，Pd：4，Ni：4 |
| B | C：87，Pt：3，Pd：8，Ni：2 |
| C | C：97，Pt：0.3，Pd：2.4，Ni：0.3 |
| D | C：88，Pt：7，Pd：0.2，Ni：4.8 |
| E | C：93，Pt：5，Pd：1，Ni：1 |
| F | C：99，Pt：2，Pd：2，Ni：1 |
| G | C：90，Pd：10 |
Embodiment 3: glucose oxidase synthesis of glucose acid sodium
In the four-hole boiling flask of 250ml, add glucose 18 grams, add entry 12ml again, stirring and dissolving, concentration is 60% glucose solution, to catalyst A 0.36 gram (catalyst is 2: 100 with the glucose quality ratio) that wherein adds embodiment 1 and embodiment 2 preparations, stirring reaction liquid also is warming up to 50 ℃, this moment aerating oxygen, in course of reaction, drip NaOH solution (concentration is 15%), keep reactant liquor to be alkalescence (pH is 8-10), insulation reaction 3 hours.Reaction finishes the back filtering catalyst, and condensing crystallizing gets gluconic acid sodium salt.Repeat above operation, just catalyst A is become catalyst B, C, D, E, F, G respectively.The catalyst reaction evaluation result is as shown in table 2.
Productive rate records in the reaction system residual sugar content by high pressure liquid chromatography and mass spectrum to be determined, i.e. productive rate=1-residual sugar content.Because in the reaction product is not gluconic acid sodium salt entirely, also has other impurity products, the selective presentation gluconic acid sodium salt accounts for the ratio of product.
Table 2 catalyst reaction evaluation result
| Catalyst | Productive rate (%) | Selectivity (%) |
| A | 96 | 99 |
| B | 94 | 96 |
| C | 91 | 92 |
| D | 93 | 97 |
| E | 94 | 97 |
| F | 95 | 96 |
| G | 98 | 91 |
Embodiment 4: the catalyst life test of embodiment 1 preparation
With the catalyst A of filtering among the embodiment 3 processings of not regenerating, directly put in the reaction, repeat the process of embodiment 3, catalyst circulation is used 16 times, still can keep activity preferably.
Claims (7)
1, a kind of catalyst for preparing gluconic acid sodium salt is characterized in that being made up of following component by percentage to the quality:
(1) carrier: active carbon, content are 87%-99%;
(2) active material: platinum, palladium, nickel mixture, total content are 1%-13%, and wherein platinum content is 0.1%-8%, and palladium content is 0.1%-10%, and nickel content is 0.1%-5%.
2, the catalyst of preparation gluconic acid sodium salt according to claim 1, form by following component by percentage to the quality:
(1) carrier: active carbon, content are 90-95%;
(2) active material: platinum, palladium, nickel mixture, total content are 5%-10%, and wherein nickel content is 2%-4%, and platinum content is 2%-5%, and palladium content is 1%-4%.
3, a kind of Preparation of catalysts method for preparing gluconic acid sodium salt is characterized in that may further comprise the steps:
(1) in dry activated carbon, adds entry, active carbon is suspended in water;
(2) nickel oxide is dissolved in the hydrochloric acid, to wherein adding the chlorine palladium acid solution that platinum acid chloride solution that mass concentration is 25%-30% and mass concentration are 20%-25%, mixing and stirring;
(3) above suspension and solution are mixed mutually, be warmed up to 65 ℃-75 ℃, add NaOH solution, make suspension be alkalescence, the pH value is 8-10;
(4) in the time of 65 ℃-75 ℃, stirred 0.5-1 hour, add formalin, reduction platinum, palladium, nickel compound;
(5) filter, wash, make the composite catalyst of activated carbon supported platinum, palladium, nickel.
The active carbon, nickel oxide, platinum acid chloride solution, the chlorine palladium acid solution amount that add in (6) (1) steps and (2) step are determined by following relation:
Carrier: active carbon, content are 87%-99%;
Active material: platinum, palladium, nickel mixture, total content are 1%-13%, and wherein nickel content is 0.1%-5%, and platinum content is 0.1%-8%, and palladium content is 0.1%-10%.
4, want the Preparation of catalysts method of 3 described preparation gluconic acid sodium salts according to right, it is characterized in that: the active carbon, nickel oxide, platinum acid chloride solution, the chlorine palladium acid solution amount that add in (1) step and (2) step are determined by following relation:
Carrier: active carbon, content are 90%-95%;
Active material: platinum, palladium, nickel mixture, total content are 5%-10%, and wherein nickel content is 2%-4%, and platinum content is 2%-5%, and palladium content is 1%-4%.
5, a kind of application rights requires the method for 1 or 2 described Preparation of Catalyst gluconic acid sodium salts, it is characterized in that may further comprise the steps:
(1) add above-mentioned catalyst in glucose solution, wherein the mass ratio of catalyst consumption and glucose is 1.5%-2.5%, and stirring reaction liquid also is warming up to 40 ℃-60 ℃, at this moment aerating oxygen;
(2) in course of reaction, drip NaOH solution, keep reactant liquor to be alkalescence, insulation reaction 2-4 hour;
(3) reaction finishes the back filtering catalyst, and in order to reusing, condensing crystallizing gets gluconic acid sodium salt.
6, application rights according to claim 5 requires the method for 1 described Preparation of Catalyst gluconic acid sodium salt, it is characterized in that: oxidizing reaction temperature is 45 ℃-60 ℃ in the first step.
7, require the method for 1 described Preparation of Catalyst gluconic acid sodium salt according to claim 5 or 6 described application rights, it is characterized in that: the glucose oxidase reaction time in second step is 3-4 hour, and the pH value of solution remains on 9-10 in the course of reaction.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100204605A CN101249443A (en) | 2008-03-07 | 2008-03-07 | Catalyst for producing gluconic acid sodium salt, method of preparing the same and applications |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100204605A CN101249443A (en) | 2008-03-07 | 2008-03-07 | Catalyst for producing gluconic acid sodium salt, method of preparing the same and applications |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643040A (en) * | 2012-03-23 | 2012-08-22 | 辽宁岩砂晶建材有限公司 | Preparation method of retarder for concrete and equipment adopted by preparation method |
| CN102875612A (en) * | 2012-10-12 | 2013-01-16 | 兰溪市苏格生物技术有限公司 | Method for preparing lactobionic acid and lactobinate through catalytic oxidation |
| CN103949652A (en) * | 2014-03-10 | 2014-07-30 | 上海交通大学 | Method for utilizing carbohydrate biomasses to reduce NiO (nickel oxide) to prepare Ni (nickel) |
| CN104860809A (en) * | 2015-06-05 | 2015-08-26 | 宁夏永能新材料有限公司 | Method for catalysis production of sodium gluconate through catalyst |
| CN106187737A (en) * | 2016-07-04 | 2016-12-07 | 中国科学院兰州化学物理研究所 | A kind of method of carbon-supported polynary noble metal catalyst catalytic oxidation of glucose preparation of gluconic acid sodium |
| CN108079987A (en) * | 2018-01-29 | 2018-05-29 | 云南森博混凝土外加剂有限公司 | A kind of preparation method for the catalyst for being used to prepare sodium gluconate |
-
2008
- 2008-03-07 CN CNA2008100204605A patent/CN101249443A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643040A (en) * | 2012-03-23 | 2012-08-22 | 辽宁岩砂晶建材有限公司 | Preparation method of retarder for concrete and equipment adopted by preparation method |
| CN102875612A (en) * | 2012-10-12 | 2013-01-16 | 兰溪市苏格生物技术有限公司 | Method for preparing lactobionic acid and lactobinate through catalytic oxidation |
| CN103949652A (en) * | 2014-03-10 | 2014-07-30 | 上海交通大学 | Method for utilizing carbohydrate biomasses to reduce NiO (nickel oxide) to prepare Ni (nickel) |
| CN104860809A (en) * | 2015-06-05 | 2015-08-26 | 宁夏永能新材料有限公司 | Method for catalysis production of sodium gluconate through catalyst |
| CN106187737A (en) * | 2016-07-04 | 2016-12-07 | 中国科学院兰州化学物理研究所 | A kind of method of carbon-supported polynary noble metal catalyst catalytic oxidation of glucose preparation of gluconic acid sodium |
| CN108079987A (en) * | 2018-01-29 | 2018-05-29 | 云南森博混凝土外加剂有限公司 | A kind of preparation method for the catalyst for being used to prepare sodium gluconate |
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