CN107694530A - A kind of wheat straw biologic adsorbent of microwave modification and preparation method thereof - Google Patents

A kind of wheat straw biologic adsorbent of microwave modification and preparation method thereof Download PDF

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Publication number
CN107694530A
CN107694530A CN201711203039.3A CN201711203039A CN107694530A CN 107694530 A CN107694530 A CN 107694530A CN 201711203039 A CN201711203039 A CN 201711203039A CN 107694530 A CN107694530 A CN 107694530A
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China
Prior art keywords
solution
adsorbent
wheat straw
paraffin
distilled water
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CN201711203039.3A
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倪修俊
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Individual
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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
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122—Incoherent waves
    • B01J19/126—Microwaves
    • 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
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • 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
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
    • 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
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton

Abstract

The invention discloses a kind of wheat straw biologic adsorbent of microwave modification, and its preparation technology, it is characterised in that with wheat stalk, polyvinyl alcohol, paraffin, polyoxyethylene nonylphenol ether 10, acrylic monomers, K2S2O8Solution, NaOH solution, ZnCl2Solution, CaCl2Solution, FeCl3Solution, hydrochloric acid etc. are raw material.Use polyvinyl alcohol（PVA）Paraffin is modified, PVA is evenly distributed in paraffin, is formed the crosslinking net water-separating film of solid, is reached waterproof effect；Using acrylic monomers as modified amboceptor, with K2S2O8It is emulsifying agent with OP 10 for initiator, it is compound to prepare paraffin acrylic acid polyvinyl alcohol waterproofing agent.

Description

A kind of wheat straw biologic adsorbent of microwave modification and preparation method thereof
Technical field
The present invention relates to absorbent fields, and in particular to a kind of wheat straw biologic adsorbent of microwave modification, and its system Standby technique.
Background technology
China is agricultural production big country, produces substantial amounts of agricultural crop straw therefrom, and serious ring can be caused by directly burning Border problem, such as soil erosion, desertification.And, it can be realized by corresponding processing. by agricultural crop straw under certain condition It is widely applied.
Zhang Lin is in its master thesis《Glass bead-wheat stalk composite thermal insulation mortar is prepared and performance study》In, Alkali process has been carried out to wheat stalk, using glass bead and wheat stalk as heat preserving aggregate, using flyash and sand as admixture, mixed Conjunction makes the good novel thermal insulation mortar of thermal and insulating performance, but waterproof, fire protecting performance deficiency be present.
The present invention carries out immersion treatment to wheat stalk with alkali lye, removal surface wax coat, the carbohydrate thing in dissolution stalk Matter, ensure its heat-insulating property, improve the combination interface power of stalk and cement matrix, improve the toughness of cement mortar.Use polyethylene Alcohol（PVA）Paraffin is modified, PVA can be evenly distributed in paraffin, formed the crosslinking net water-separating film of solid, reached Waterproof effect；Using acrylic monomers as modified amboceptor, with K2S2O8For initiator, using OP-10 as emulsifying agent, with the former compound system Standby paraffin-acrylic acid-polyvinyl alcohol waterproofing agent.
The content of the invention
The present invention solves the technical problem of provide a kind of the wheat straw biologic adsorbent and its system of microwave modification Standby technique, the adsorbent absorption property that is prepared according to the technique is good, adsorption effect is good.
The technical problems to be solved by the invention are realized using following technical scheme：
Wheat straw 40-60, polyvinyl alcohol 8-15, paraffin 4-7, emulsifier op-10 2-5, acrylic monomers 3-6, K2S2O8It is molten Liquid 2-4, NaOH solution, ZnCl2Solution, CaCl2Solution, FeCl3Solution, hydrochloric acid, running water, distillation appropriate amount of water.
The preparation method of the wheat straw biologic adsorbent of a kind of microwave modification, it is characterised in that carry out according to the following steps：
A. wheat stalk is cleaned with running water and distilled water, is placed in 50-60 DEG C of insulating box and is dried to constant weight, mistake after crushing 60-100 mesh sieves, are divided into two parts, standby；
B. a material of gained in a is placed in porcelain crucible, is put into after capping in high temperature resistance furnace, is warming up to 400-600 DEG C of heat 1-2h is solved, is crushed after taking out cooling, 100-200 mesh sieves is crossed, produces straw charcoal, it is standby；
C. into a 1 in another material of gained:2-4 adds ZnCl2Solution, after soaking 10-20h, it is placed under microwave and irradiates 5- 10min, rinsed with hydrochloric acid, NaOH solution, distilled water to neutrality, filtering, drying, obtain modified wheat stalk adsorbent；
D. into b 1 in gained straw charcoal:2:8-10 adds CaCl2Solution, FeCl3Solution, stir, adjusted with NaOH solution PH is saved as neutrality, stands 1-2h after being sufficiently mixed, then with distilled water filter 23-5 times, is placed in baking oven in 70-90 DEG C of drying；
E. into polyvinyl alcohol 1:15-20 adds distilled water, stirs, and is warming up to 80-90 DEG C, adds paraffin, constant temperature stirring 1-2h, A liquid is obtained, by emulsifier op-10 1:10-20 is dissolved in distilled water, adds in acrylic monomers, emulsifies 30-50min, obtains B Liquid, A, B liquid are mixed, add K2S2O8Resulting material in solution and c, d, in 70-80 DEG C of stirring reaction 3-5h, at 80-100 DEG C Adsorbent is obtained after drying.
Wherein, ZnCl in step c2Liquid quality fraction is 40-50%, concentration of hydrochloric acid 1-2%, NaOH solution mass fraction For 1-3%, microwave condition 700-800W；FeCl in step d3Solution concentration is 1-2mol/L, CaCl2Solution concentration is 2- 3mol/L, NaOH solution concentration are 1-2mol/L；K in step e2S2O8Solution concentration is 1-3%.
The reaction mechanism of the present invention is as follows：
（1）Wheat stalk adsorbent surface rustic, many functional groups that can be adsorbed be present, it is modified to its with microwave, Increase its specific surface area, functional group is also changed, and makes the adsorption capacity of modified adsorbent strengthen.
（2）Use polyvinyl alcohol（PVA）Paraffin is modified, PVA can be evenly distributed in paraffin, form solid Crosslinking net water-separating film, reaches waterproof effect；Using acrylic monomers as modified amboceptor, with K2S2O8For initiator, using OP-10 as Emulsifying agent, and the former is compound prepares paraffin-acrylic acid-polyvinyl alcohol waterproofing agent.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Specific embodiment is closed, the present invention is expanded on further.
Embodiment
A kind of wheat straw biologic adsorbent of microwave modification, is made by the raw material of following weight parts (g)：
Wheat straw 60, polyvinyl alcohol 15, paraffin 7, emulsifier op-10 5, acrylic monomers 6, K2S2O8Solution 4, NaOH is molten Liquid, ZnCl2Solution, CaCl2Solution, FeCl3Solution, hydrochloric acid, running water, distillation appropriate amount of water.
The preparation method of the wheat straw biologic adsorbent of a kind of microwave modification, it is characterised in that carry out according to the following steps：
A. wheat stalk is cleaned with running water and distilled water, is placed in 50-60 DEG C of insulating box and is dried to constant weight, mistake after crushing 100 mesh sieves, are divided into two parts, standby；
B. a material of gained in a is placed in porcelain crucible, is put into after capping in high temperature resistance furnace, is warming up to 500-600 DEG C of heat 2h is solved, is crushed after taking out cooling, 200 mesh sieves is crossed, produces straw charcoal, it is standby；
C. into a 1 in another material of gained:4 add ZnCl2Solution, after soaking 10h, it is placed under microwave and irradiates 10min, uses Hydrochloric acid, NaOH solution, distilled water are rinsed to neutrality, filtering, drying, obtain modified wheat stalk adsorbent；
D. into b 1 in gained straw charcoal:2:10 add CaCl2Solution, FeCl3Solution, stir, adjusted with NaOH solution PH is neutrality, and 2h is stood after being sufficiently mixed, then secondary with distilled water filter 23, is placed in baking oven in 70-80 DEG C of drying；
E. into polyvinyl alcohol 1:20 add distilled water, stir, and are warming up to 80-90 DEG C, add paraffin, constant temperature stirring 1- 2h, A liquid is obtained, by emulsifier op-10 1:20 are dissolved in distilled water, add in acrylic monomers, emulsify 50min, B liquid are obtained, by A, B Liquid mixes, and adds K2S2O8Resulting material in solution and c, d, in 70-80 DEG C of stirring reaction 5h, it must be inhaled after 90-100 DEG C of drying Attached dose.

Claims (5)

1. the wheat straw biologic adsorbent of a kind of microwave modification, it is characterised in that be made by the raw material of following weight parts：
Wheat straw 40-60, polyvinyl alcohol 8-15, paraffin 4-7, emulsifier op-10 2-5, acrylic monomers 3-6, K2S2O8It is molten Liquid 2-4, NaOH solution, ZnCl2Solution, CaCl2Solution, FeCl3Solution, hydrochloric acid, running water, distillation appropriate amount of water.
2. a kind of preparation method of the wheat straw biologic adsorbent of microwave modification according to claim 1, its feature exist In carrying out according to the following steps：
Wheat stalk is cleaned with running water and distilled water, is placed in 50-60 DEG C of insulating box and is dried to constant weight, 60- is crossed after crushing 100 mesh sieves, are divided into two parts, standby；
B. a material of gained in a is placed in porcelain crucible, is put into after capping in high temperature resistance furnace, is warming up to 400-600 DEG C of heat 1-2h is solved, is crushed after taking out cooling, 100-200 mesh sieves is crossed, produces straw charcoal, it is standby；
C. into a 1 in another material of gained:2-4 adds ZnCl2Solution, after soaking 10-20h, it is placed under microwave and irradiates 5- 10min, rinsed with hydrochloric acid, NaOH solution, distilled water to neutrality, filtering, drying, obtain modified wheat stalk adsorbent；
D. into b 1 in gained straw charcoal:2:8-10 adds CaCl2Solution, FeCl3Solution, stir, adjusted with NaOH solution PH is saved as neutrality, stands 1-2h after being sufficiently mixed, then with distilled water filter 23-5 times, is placed in baking oven in 70-90 DEG C of drying；
E. into polyvinyl alcohol 1:15-20 adds distilled water, stirs, and is warming up to 80-90 DEG C, adds paraffin, constant temperature stirring 1-2h, A liquid is obtained, by emulsifier op-10 1:10-20 is dissolved in distilled water, adds in acrylic monomers, emulsifies 30-50min, obtains B Liquid, A, B liquid are mixed, add K2S2O8Resulting material in solution and c, d, in 70-80 DEG C of stirring reaction 3-5h, at 80-100 DEG C Adsorbent is obtained after drying.
3. a kind of preparation method of the wheat straw biologic adsorbent of microwave modification according to claim 2, its feature exist In ZnCl in step c2Liquid quality fraction is 40-50%, and concentration of hydrochloric acid 1-2%, NaOH solution mass fraction is 1-3%, micro- Ripple condition is 700-800W.
4. a kind of preparation method of the wheat straw biologic adsorbent of microwave modification according to claim 2, its feature exist In FeCl in step d3Solution concentration is 1-2mol/L, CaCl2Solution concentration is 2-3mol/L, and NaOH solution concentration is 1- 2mol/L。
5. a kind of preparation method of the wheat straw biologic adsorbent of microwave modification according to claim 2, its feature exist In K in step e2S2O8Solution concentration is 1-3%.
CN201711203039.3A 2017-11-27 2017-11-27 A kind of wheat straw biologic adsorbent of microwave modification and preparation method thereof Pending CN107694530A (en)

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CN201711203039.3A CN107694530A (en) 2017-11-27 2017-11-27 A kind of wheat straw biologic adsorbent of microwave modification and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201711203039.3A CN107694530A (en) 2017-11-27 2017-11-27 A kind of wheat straw biologic adsorbent of microwave modification and preparation method thereof

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102344531A (en) * 2011-07-08 2012-02-08 大连工业大学 Method for preparing oil absorption material by adopting straws as base materials
US20160101990A1 (en) * 2013-10-25 2016-04-14 Cool Planet Energy Systems, Inc. System and method for purifying process water
CN107057393A (en) * 2017-05-18 2017-08-18 宿州市逢源生物科技有限公司 A kind of Fireproof fire retardation type biomass board of APP boric acid compounding and preparation method thereof
CN107376845A (en) * 2017-09-20 2017-11-24 江苏科力特环保科技有限公司 A kind of decolouring granular activated carbon

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102344531A (en) * 2011-07-08 2012-02-08 大连工业大学 Method for preparing oil absorption material by adopting straws as base materials
US20160101990A1 (en) * 2013-10-25 2016-04-14 Cool Planet Energy Systems, Inc. System and method for purifying process water
CN107057393A (en) * 2017-05-18 2017-08-18 宿州市逢源生物科技有限公司 A kind of Fireproof fire retardation type biomass board of APP boric acid compounding and preparation method thereof
CN107376845A (en) * 2017-09-20 2017-11-24 江苏科力特环保科技有限公司 A kind of decolouring granular activated carbon

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李宝佳: "水泥基保温砂浆的制备与性能研究", 《中国优秀硕士学位论文全文数据库（电子期刊） 工程科技II辑》 *

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Application publication date: 20180216

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