CN106902753A - A kind of preparation method of sorbing material - Google Patents
A kind of preparation method of sorbing material Download PDFInfo
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- CN106902753A CN106902753A CN201710124837.0A CN201710124837A CN106902753A CN 106902753 A CN106902753 A CN 106902753A CN 201710124837 A CN201710124837 A CN 201710124837A CN 106902753 A CN106902753 A CN 106902753A
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- diatomite
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- sorbing material
- powder
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/14—Diatomaceous earth
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of preparation method of sorbing material, the method comprises the following steps：Diatomite is cleaned, product drying and grinding into powder will be cleaned；Diatomite powder is scattered in distilled water carries out microwave treatment；Prepare chitosan solution；Chitosan solution is mixed with chitin modified diatomite powder in diatomite.The invention discloses a kind of preparation method of sorbing material, by to diatomite using microwave and chitin modified, microwave modification can significantly improve diatomaceous adsorption capacity, and place its adsorption capacity for a long time and will not reduce, it is organically-modified to increase diatomaceous specific surface area, further enhance diatomaceous adsorption capacity.
Description
Technical field
The invention belongs to technical field of soil remediation, more particularly to a kind of preparation method of sorbing material.
Background technology
Diatomite be based on the natural sediment of diatom body, diatom body be by the algae in the bottom, Radiolaria or
The remains of sponge mineralising in very long the Nature is developed is formed, and its essential part is the siliceous shell wall with loose structure.My god
Right diatomite contains a small amount of Al2O3、Fe2O3、CaO、MgO、K2Many impurity such as O and organic matter, its application value is not high, diatom
The main chemical compositions of soil are with SiO2Based on.Diatomite is at present mainly as filter aid, and product specification and economic value added are relatively low,
Mineral resources are wasted, therefore, diatomite fine product and deep processed product are also to be developed.
The content of the invention
It is an object of the invention to provide a kind of preparation method of sorbing material, by poly- using microwave and shell to diatomite
Sugar is modified, further enhances diatomaceous adsorption capacity.
The present invention is achieved by the following technical solutions：
A kind of preparation method of sorbing material, the method comprises the following steps：
S1, diatomite is cleaned, product drying and grinding into powder will be cleaned；
S2, diatomite powder is scattered in distilled water and carries out microwave treatment；
S3, preparation chitosan solution；
S4, chitosan solution is mixed with chitin modified diatomite powder in diatomite.
Further, the S1 is concretely comprised the following steps, and is taken diatomite and is added into swaging machine, and adds dispersant pyrophosphoric acid
Sodium and distilled water, clean 80-90min, clean product stirring 20min, stand 5min, suction filtration after scavenger precipitation thing, by what is obtained
Grinding sieving obtains diatomite powder after diatomite precipitation is placed in drying.
Further, the diatomite concentration is 25%-40%, and the sodium pyrophosphate mass fraction is 5%.
Further, concretely comprising the following steps in the S2, diatomite powder is scattered in distilled water and obtains dispersion liquid, will
Diatomite dispersion liquid is placed in carries out microwave treatment in micro-wave oven, the diatomite dispersion liquid centrifuging and taking precipitation vacuum after microwave is done
It is dry.
Further, diatomite concentration is 15%-20% in the diatomite dispersion liquid.
Further, the microwave time is 10min in the microwave treatment, and microwave power is 450-500w.
Further, chitosan solution is prepared described in S3 to concretely comprise the following steps, weighing shitosan, to be dissolved in 5% acetic acid molten
In liquid, chitosan concentration is 2-5g/L, and pH is to 4.8 for regulation, obtains chitosan solution.
Further, by chitosan solution, diatomite powder is added into conical flask in S3, is stirred under 80 DEG C of water bath conditions
1.5-2h is mixed, grinding sieve obtains the sorbing material after reaction terminates rear centrifuging and taking precipitation vacuum drying.
Further, diatomite powder and the solid-to-liquid ratio of chitosan solution are 1：(300-350).
The invention has the advantages that：
The invention discloses a kind of preparation method of sorbing material, by diatomite using microwave and chitin modified,
Microwave modification can significantly improve diatomaceous adsorption capacity, and place its adsorption capacity for a long time and will not reduce, organically-modified increasing
Big diatomaceous specific surface area, further enhances diatomaceous adsorption capacity.
Specific embodiment
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The all other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment 1
S1, diatomite is cleaned, product drying and grinding into powder will be cleaned；
Specifically, take diatomite adding into swaging machine, add distilled water to cause that diatomite concentration is 25%, add dispersion
Agent sodium pyrophosphate causes that sodium pyrophosphate mass fraction is 5%, cleans 80min, cleans product mechanical agitation 20min, stands 5min,
Suction filtration after scavenger precipitation thing, the diatomite precipitation that will be obtained is placed in 70 DEG C of baking ovens after drying, and ground 160 mesh sieve obtains diatom
Native powder；
S2, diatomite powder is scattered in distilled water and carries out microwave treatment；
Specifically, diatomite powder is scattered in obtaining dispersion liquid in distilled water, wherein diatomite concentration is 15%, by silicon
Diatomaceous earth dispersion liquid is placed in microwave 10min in micro-wave oven, and regulation microwave power is 450w；
Diatomite dispersion liquid after microwave is centrifuged 30min under the conditions of 9000g, precipitation vacuum drying is taken；
S3, preparation chitosan solution；
Specifically, weigh shitosan being dissolved in 2% acetum, chitosan concentration is 2g/L, molten with 1mol/L NaOH
Liquid adjusts pH to 4.8, obtains chitosan solution；
S4, chitosan solution is mixed with chitin modified diatomite powder in diatomite；
Specifically, diatomite powder is added into conical flask in S3 by chitosan solution, solid-to-liquid ratio is 1：300,80 DEG C
With 250r/min mechanical agitation 1.5h under water bath condition, 20min is centrifuged with 4500r/min afterwards, is ground after taking precipitation vacuum drying
Honed 200 mesh sieve obtains the sorbing material.
Embodiment 2
S1, diatomite is cleaned, product drying and grinding into powder will be cleaned；
Specifically, take diatomite adding into swaging machine, add distilled water to cause that diatomite concentration is 40%, add dispersion
Agent sodium pyrophosphate causes that sodium pyrophosphate mass fraction is 5%, cleans 90min, cleans product mechanical agitation 20min, stands 5min,
Suction filtration after scavenger precipitation thing, the diatomite precipitation that will be obtained is placed in 70 DEG C of baking ovens after drying, and ground 180 mesh sieve obtains diatom
Native powder；
S2, diatomite powder is scattered in distilled water and carries out microwave treatment；
Specifically, diatomite powder is scattered in obtaining dispersion liquid in distilled water, wherein diatomite concentration is 20%, by silicon
Diatomaceous earth dispersion liquid is placed in microwave 10min in micro-wave oven, and regulation microwave power is 500w；
Diatomite dispersion liquid after microwave is centrifuged 30min under the conditions of 9000g, precipitation vacuum drying is taken；
S3, preparation chitosan solution；
Specifically, weigh shitosan being dissolved in 2% acetum, chitosan concentration is 5g/L, molten with 1mol/L NaOH
Liquid adjusts pH to 4.8, obtains chitosan solution；
S4, chitosan solution is mixed with chitin modified diatomite powder in diatomite；
Specifically, diatomite powder is added into conical flask in S3 by chitosan solution, solid-to-liquid ratio is 1：300,80 DEG C
With 250r/min mechanical agitation 2h under water bath condition, 20min is centrifuged with 4500r/min afterwards, is ground after taking precipitation vacuum drying
Cross 200 mesh sieves and obtain the sorbing material.
Embodiment 3
S1, diatomite is cleaned, product drying and grinding into powder will be cleaned；
Specifically, take diatomite adding into swaging machine, distilled water is added to cause diatomite concentration for 25%-40%, plus
Enter dispersant sodium pyrophosphate so that sodium pyrophosphate mass fraction is 5%, clean 85min, clean product mechanical agitation 20min, it is quiet
5min is put, suction filtration after scavenger precipitation thing, the diatomite precipitation that will be obtained is placed in 70 DEG C of baking ovens after drying, ground 170 mesh sieve
Obtain diatomite powder；
S2, diatomite powder is scattered in distilled water and carries out microwave treatment；
Specifically, diatomite powder is scattered in obtaining dispersion liquid in distilled water, wherein diatomite concentration is 17%, by silicon
Diatomaceous earth dispersion liquid is placed in microwave 10min in micro-wave oven, and regulation microwave power is 480w；
Diatomite dispersion liquid after microwave is centrifuged 30min under the conditions of 9000g, precipitation vacuum drying is taken；
S3, preparation chitosan solution；
Specifically, weigh shitosan being dissolved in 2% acetum, chitosan concentration is 3g/L, molten with 1mol/L NaOH
Liquid adjusts pH to 4.8, obtains chitosan solution；
S4, chitosan solution is mixed with chitin modified diatomite powder in diatomite；
Specifically, diatomite powder is added into conical flask in S3 by chitosan solution, solid-to-liquid ratio is 1：330,80 DEG C
With 250r/min mechanical agitation 1.8h under water bath condition, 20min is centrifuged with 4500r/min afterwards, is ground after taking precipitation vacuum drying
Honed 200 mesh sieve obtains the sorbing material.
Above content is only citing made for the present invention and explanation, and affiliated those skilled in the art are to being retouched
The specific embodiment stated is made various modifications or supplement or is substituted using similar mode, without departing from invention or super
More scope defined in the claims, all should belong to protection scope of the present invention.
Claims (9)
1. a kind of preparation method of sorbing material, it is characterised in that the method comprises the following steps：
S1, diatomite is cleaned, product drying and grinding into powder will be cleaned；
S2, diatomite powder is scattered in distilled water and carries out microwave treatment；
S3, preparation chitosan solution；
S4, chitosan solution is mixed with chitin modified diatomite powder in diatomite.
2. the preparation method of a kind of sorbing material according to claim 1, it is characterised in that：The specific steps of the S1
For, take diatomite and add into swaging machine, and dispersant sodium pyrophosphate and distilled water are added, 80-90min is cleaned, clean product
Stirring 20min, stands 5min, suction filtration after scavenger precipitation thing, and the diatomite precipitation that will be obtained is placed in grinding sieving after drying and obtains
Diatomite powder.
3. the preparation method of a kind of sorbing material according to claim 2, it is characterised in that：The diatomite concentration is
25%-40%, the sodium pyrophosphate mass fraction is 5%.
4. the preparation method of a kind of sorbing material according to claim 1, it is characterised in that：Specific steps in the S2
For, diatomite powder being scattered in distilled water and obtains dispersion liquid, diatomite dispersion liquid is placed in micro-wave oven to be carried out at microwave
Reason, vacuum drying is precipitated by the diatomite dispersion liquid centrifuging and taking after microwave.
5. the preparation method of a kind of sorbing material according to claim 4, it is characterised in that：In the diatomite dispersion liquid
Diatomite concentration is 15%-20%.
6. the preparation method of a kind of sorbing material according to claim 4, it is characterised in that：Microwave in the microwave treatment
Time is 10min, and microwave power is 450-500w.
7. the preparation method of a kind of sorbing material according to claim 1, it is characterised in that：Shitosan is prepared described in S3
Concretely comprising the following steps for solution, weighs shitosan and is dissolved in 5% acetum, and chitosan concentration is 2-5g/L, regulation pH to
4.8, obtain chitosan solution.
8. the preparation method of a kind of sorbing material according to claim 1, it is characterised in that：By chitosan solution in S3
Diatomite powder is added into conical flask, and 1.5-2h is stirred under 80 DEG C of water bath conditions, and reaction terminates rear centrifuging and taking precipitation vacuum and does
Grinding sieve obtains the sorbing material after dry.
9. the preparation method of a kind of sorbing material according to claim 8, it is characterised in that：Diatomite powder and shitosan
The solid-to-liquid ratio of solution is 1：300-350.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108395205A (en) * | 2018-02-07 | 2018-08-14 | 广东英超陶瓷有限公司 | A kind of preparation method of water-permeable brick |
| CN110150274A (en) * | 2019-05-24 | 2019-08-23 | 苏农（广德）生物科技有限公司 | A kind of efficient glyphosate Weeding water agent and its preparation process |
| CN111000907A (en) * | 2019-12-23 | 2020-04-14 | 朱细贵 | Traditional Chinese medicine for treating lumbocrural pain and preparation method thereof |
| CN114275832A (en) * | 2021-12-22 | 2022-04-05 | 江苏宿迁润泰环保科技有限公司 | Biological polysaccharide-based sewage treatment agent and application thereof in sewage treatment process |
| CN115806973A (en) * | 2022-12-16 | 2023-03-17 | 中国海洋大学 | Method for rapidly extracting biomass by utilizing diatom biological silicon and application |
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| CN101058426A (en) * | 2007-04-13 | 2007-10-24 | 沈阳化工学院 | Environment-friendly modified bentonite and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395205A (en) * | 2018-02-07 | 2018-08-14 | 广东英超陶瓷有限公司 | A kind of preparation method of water-permeable brick |
| CN110150274A (en) * | 2019-05-24 | 2019-08-23 | 苏农（广德）生物科技有限公司 | A kind of efficient glyphosate Weeding water agent and its preparation process |
| CN111000907A (en) * | 2019-12-23 | 2020-04-14 | 朱细贵 | Traditional Chinese medicine for treating lumbocrural pain and preparation method thereof |
| CN114275832A (en) * | 2021-12-22 | 2022-04-05 | 江苏宿迁润泰环保科技有限公司 | Biological polysaccharide-based sewage treatment agent and application thereof in sewage treatment process |
| CN114275832B (en) * | 2021-12-22 | 2022-10-18 | 江苏宿迁润泰环保科技有限公司 | Biological polysaccharide-based sewage treatment agent and application thereof in sewage treatment process |
| CN115806973A (en) * | 2022-12-16 | 2023-03-17 | 中国海洋大学 | Method for rapidly extracting biomass by utilizing diatom biological silicon and application |
| CN115806973B (en) * | 2022-12-16 | 2023-07-04 | 中国海洋大学 | Method for rapidly extracting biomass by utilizing diatom biological silicon and application |
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