CN104162413A - Novel preparation method of rape stalk cellulose adsorbent - Google Patents
Novel preparation method of rape stalk cellulose adsorbent Download PDFInfo
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- CN104162413A CN104162413A CN201410476124.7A CN201410476124A CN104162413A CN 104162413 A CN104162413 A CN 104162413A CN 201410476124 A CN201410476124 A CN 201410476124A CN 104162413 A CN104162413 A CN 104162413A
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Abstract
The invention discloses a novel preparation method of a rape stalk cellulose adsorbent. The preparation method comprises the following steps: (1) crushing stalk once, wherein the crushing granularity is 30-45 meshes, (2) drying, namely putting granule into a drying oven to dry; (3) grinding, (4) dewaxing, namely immersing the ground stalk material in toluene-ethanol for dewaxing, (5) extracting, (6) flushing, namely washing the extracted stalk cellulose powder with deionized water to neutral, (7) vacuum drying, (8) phosphorylating to prepare stalk cellulose adsorbent, (9) performing neutral washing, and (10) drying, namely performing vacuum drying at 45 C DEG for 13 hours to obtain the finished adsorbent. Through the manner, the prepared adsorbent can selectively adsorb lysozyme and has the advantage of quick adsorption balance, large adsorption capacity and high enzyme activity conservation rate.
Description
Technical field
The present invention relates to biomass utilization, particularly relate to a kind of method that maize straw is prepared activated carbon.
Background technology
Stalk is the huge regenerative resource of storage capacity on the earth, and rational exploitation and utilization also improves straw resource utilization rate, is the subject matter of China in the utilization of resources.A large amount of hydrogen bonds of native cellulose crystallization in stalk, intermolecular and molecular memory, it is not dissolved in most of solvents, become the subject matter that stalk exists in Application and Development kind, and utilize stalk cellulose to make adsorbent, there are equally the problems referred to above, the utilization rate of stalk cellulose is reduced.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of preparation method of novel rape stalk cellulose adsorbent, the alternative absorption of the adsorbent lysozyme of making, has adsorption equilibrium piece, and adsorption capacity is large, enzyme activity conservation rate advantages of higher, the utilization rate of simultaneously having extended rape stalk.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of preparation method of novel rape stalk cellulose adsorbent is provided, comprises following steps:
(1) stalk is once pulverized, and rape stalk is put into pulverizer and pulverize, and grinding particle size is 30～45 orders;
(2) dry, particulate material is put into drying oven and dry, keep the temperature of drying oven at 120 DEG C～135 DEG C, drying time is 45min～60min;
(3) grind, dried particulate material is transported in grinder and is ground, grind to form powdery material, the bulk density of described powder-material is 100g/cm3;
(4) dewaxing treatment, immerses the stalk powder material after grinding in toluene-absolute ethyl alcohol and dewaxes, and immersing duration is 25 min～35min;
(5) extracting, is 25～35 DEG C in temperature, adds 15% NaOH to extract 15 hours, makes stalk cellulose powder;
(6) rinse, it is neutral that the stalk cellulose powder deionized water after extracting is washed till to pH value, then uses 90% washing;
(7) vacuum drying;
(8) phosphorylation is prepared stalk cellulose adsorbent, get appropriate dried rape stalk cellulose powder and put into the beaker of 600ml, add successively dimethyl formamide, urea and phosphoric acid solution, then beaker is heated, heating-up temperature is 125 DEG C～130 DEG C, reacts 2.5 hours.
(9) neutral cleaning, cleans reacted material by deionized water, cleans to PH and is set to 6.5～7.
(10) dry, in 45 DEG C, carry out vacuum drying 13 hours, make finished product adsorbent.
In preferred embodiments of the present invention, in described step 7, be dried and be treated to vacuum drying treatment, described baking temperature is 35 DEG C, duration is 15 hours.
In preferred embodiments of the present invention, in described step 8, stalk cellulose powder is got 6.52 g, urea 42.2 g, phosphoric acid solution 40.5 g, dimethyl formamide 200g.
The invention has the beneficial effects as follows: a kind of preparation method of novel rape stalk cellulose adsorbent, the alternative absorption of the adsorbent lysozyme of making, has adsorption equilibrium piece, and adsorption capacity is large, enzyme activity conservation rate advantages of higher, the utilization rate of simultaneously having extended rape stalk.
Detailed description of the invention
To the technical scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention comprises:
A preparation method for novel rape stalk cellulose adsorbent, comprises following steps:
(1) stalk is once pulverized, and rape stalk is put into pulverizer and pulverize, and grinding particle size is 30～45 orders;
(2) dry, particulate material is put into drying oven and dry, keep the temperature of drying oven at 120 DEG C～135 DEG C, drying time is 45min～60min;
(3) grind, dried particulate material is transported in grinder and is ground, grind to form powdery material, the bulk density of described powder-material is 100g/cm3;
(4) dewaxing treatment, immerses the stalk powder material after grinding in toluene-absolute ethyl alcohol and dewaxes, and immersing duration is 25 min～35min;
(5) extracting, is 25～35 DEG C in temperature, adds 15% NaOH to extract 15 hours, makes stalk cellulose powder;
(6) rinse, it is neutral that the stalk cellulose powder deionized water after extracting is washed till to pH value, then uses 90% washing;
(7) vacuum drying;
(8) phosphorylation is prepared stalk cellulose adsorbent, get appropriate dried rape stalk cellulose powder and put into the beaker of 600ml, add successively dimethyl formamide, urea and phosphoric acid solution, then beaker is heated, heating-up temperature is 125 DEG C～130 DEG C, reacts 2.5 hours.
(9) neutral cleaning, cleans reacted material by deionized water, cleans to PH and is set to 6.5～7.
(10) dry, in 45 DEG C, carry out vacuum drying 13 hours, make finished product adsorbent.
Further, dryly in described step 7 be treated to vacuum drying treatment, described baking temperature is 35 DEG C, and duration is 15 hours, and vacuum drying has efficiently, heats all the effect with, sterilization, sterilization.
Further, in described step 8, stalk cellulose powder is got 6.52 g, urea 42.2 g, phosphoric acid solution 40.5 g, dimethyl formamide 200g.
The invention has the beneficial effects as follows: a kind of preparation method of novel rape stalk cellulose adsorbent, the alternative absorption of the adsorbent lysozyme of making, has adsorption equilibrium piece, and adsorption capacity is large, enzyme activity conservation rate advantages of higher, the utilization rate of simultaneously having extended rape stalk.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. a preparation method for novel rape stalk cellulose adsorbent, is characterized in that, comprises following steps:
(1) stalk is once pulverized, and rape stalk is put into pulverizer and pulverize, and grinding particle size is 30～45 orders;
(2) dry, particulate material is put into drying oven and dry, keep the temperature of drying oven at 120 DEG C～135 DEG C, drying time is 45min～60min;
(3) grind, dried particulate material is transported in grinder and is ground, grind to form powdery material, the bulk density of described powder-material is 100g/cm
3;
(4) dewaxing treatment, immerses the stalk powder material after grinding in toluene-absolute ethyl alcohol and dewaxes, and immersing duration is 25 min～35min;
(5) extracting, is 25～35 DEG C in temperature, adds 15% NaOH to extract 15 hours, makes stalk cellulose powder;
(6) rinse, it is neutral that the stalk cellulose powder deionized water after extracting is washed till to pH value, then uses 90% washing;
(7) vacuum drying;
(8) phosphorylation is prepared stalk cellulose adsorbent, get appropriate dried rape stalk cellulose powder and put into the beaker of 600ml, add successively dimethyl formamide, urea and phosphoric acid solution, then beaker is heated, heating-up temperature is 125 DEG C～130 DEG C, reacts 2.5 hours;
(9) neutral cleaning, cleans reacted material by deionized water, cleans to PH and is set to 6.5～7;
(10) dry, in 45 DEG C, carry out vacuum drying 13 hours, make finished product adsorbent.
2. the preparation method of novel rape stalk cellulose adsorbent according to claim 1, is characterized in that, in described step 7, is dried and is treated to vacuum drying treatment, and described baking temperature is 35 DEG C, and duration is 15 hours.
3. the preparation method of novel rape stalk cellulose adsorbent according to claim 1, is characterized in that, in described step 8, stalk cellulose powder is got 6.52 g, urea 42.2 g, phosphoric acid solution 40.5 g, dimethyl formamide 200g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410476124.7A CN104162413A (en) | 2014-09-18 | 2014-09-18 | Novel preparation method of rape stalk cellulose adsorbent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410476124.7A CN104162413A (en) | 2014-09-18 | 2014-09-18 | Novel preparation method of rape stalk cellulose adsorbent |
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| CN201410476124.7A Pending CN104162413A (en) | 2014-09-18 | 2014-09-18 | Novel preparation method of rape stalk cellulose adsorbent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080508A (en) * | 2015-09-29 | 2015-11-25 | 江苏锦宇环境工程有限公司 | Preparation method for absorbent made from lignin-degrading bacteria modified straw |
| CN105601374A (en) * | 2015-12-21 | 2016-05-25 | 成都新柯力化工科技有限公司 | Preparation method of compound ecological fertilizer from plant stalks |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881033A (en) * | 2014-02-26 | 2014-06-25 | 成都理工大学 | Preparation method of crop straw dye adsorption material |
| CN104045084A (en) * | 2014-06-25 | 2014-09-17 | 无锡市崇安区科技创业服务中心 | Activated carbon and preparation method thereof |
-
2014
- 2014-09-18 CN CN201410476124.7A patent/CN104162413A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881033A (en) * | 2014-02-26 | 2014-06-25 | 成都理工大学 | Preparation method of crop straw dye adsorption material |
| CN104045084A (en) * | 2014-06-25 | 2014-09-17 | 无锡市崇安区科技创业服务中心 | Activated carbon and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080508A (en) * | 2015-09-29 | 2015-11-25 | 江苏锦宇环境工程有限公司 | Preparation method for absorbent made from lignin-degrading bacteria modified straw |
| CN105601374A (en) * | 2015-12-21 | 2016-05-25 | 成都新柯力化工科技有限公司 | Preparation method of compound ecological fertilizer from plant stalks |
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Application publication date: 20141126 |