CN107321332A - A kind of environmentally friendly bentone adsorbent and preparation method thereof - Google Patents
A kind of environmentally friendly bentone adsorbent and preparation method thereof Download PDFInfo
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- CN107321332A CN107321332A CN201710777469.XA CN201710777469A CN107321332A CN 107321332 A CN107321332 A CN 107321332A CN 201710777469 A CN201710777469 A CN 201710777469A CN 107321332 A CN107321332 A CN 107321332A
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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
- B01J20/12—Naturally occurring clays or bleaching 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/045—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing sulfur, e.g. sulfates, thiosulfates, gypsum
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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
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/046—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing halogens, e.g. halides
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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
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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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- 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
- B01J20/26—Synthetic macromolecular compounds
- B01J20/264—Synthetic macromolecular compounds derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers
Abstract
The present invention relates to Material Field, in particular to a kind of environmentally friendly bentone adsorbent and preparation method thereof.A kind of environmentally friendly bentone adsorbent, the main following components included by weight：60 75 parts of bentonite, 7 13 parts of chitosan, 45 parts of starch, 45 parts of partially hydrolyzed polyacrylamide (PHPA), 0.7 1.5 parts of cetyl trimethylammonium bromide, 11 15 parts of particle diameter are 0.1 μm 5 μm of bead particles.By each organic matter to bead particles, alta-mud modification, the good adsorbent of absorption property is finally prepared.Partially hydrolyzed polyacrylamide (PHPA) effectively can be grafted on starch, to improve grafting rate of the nonionic group on starch.Bead particles are filled between bentonite clay particle.Each organic matter is modified to bead particles, bentonite outer surface, changes the micro-structural of surface-active and interlamination region, to improve adsorbent absorption property.
Description
Technical field
The present invention relates to Material Field, in particular to a kind of environmentally friendly bentone adsorbent and preparation method thereof.
Background technology
Bentonite be it is a kind of using montmorillonite as main component 2：1 type layered clay mineral, larger surface area has it
There is stronger adsorption capacity and ion-exchange capacity, in recent years, bentonite is used for handling various pollutions as a kind of adsorbent,
Some are achieved in terms of the improvement of soil, the processing of pollutant effluents successfully to apply, and also served as the substrate of landfill yard, are handled poisonous
Physical isolation material during hazardous solid waste etc..
In natural montmorillonite, silica structure has the hydrolysis of extremely strong hydrophily and a large amount of exchangeable cations of interlayer,
Its surface is generally there is one layer of thin moisture film, and can not effectively adsorb hydrophobic organic pollutant.
Accordingly, inventor has invented a kind of environmentally friendly bentone adsorbent.
The content of the invention
It is an object of the invention to provide a kind of environmentally friendly bentone adsorbent and preparation method thereof, it is intended to improve existing
The problem of bentonite adsorption performance is not good.
The present invention provides a kind of technical scheme：
A kind of environmentally friendly bentone adsorbent, its raw material mainly includes the following components counted by weight：
60-75 parts of bentonite, 7-13 parts of chitosan, 4-5 parts of starch, 4-5 parts of partially hydrolyzed polyacrylamide (PHPA),
0.7-1.5 parts of cetyl trimethylammonium bromide, the bead particles that 11-15 parts of particle diameter is 0.1 μm -5 μm.
In other embodiments of the invention, above-mentioned raw materials also include：2-5 parts of potassium peroxydisulfate, 1-3 parts of sodium chloride.
In other embodiments of the invention, above-mentioned bentonite is sodium bentonite, calcium-base bentonite or organic swelling
Any of soil.
In other embodiments of the invention, the molecular weight of above-mentioned partially hydrolyzed polyacrylamide (PHPA) is 300 × 104-1000
×104G/mol, polymer degree of hydrolysis is 17%-26%.
The present invention also provides a kind of technical scheme：
The preparation method of above-mentioned environmentally friendly bentone adsorbent, it includes：
Calcined bentonites and bead particles；By the product after calcining and partially hydrolyzed polyacrylamide (PHPA), chitosan, starch,
Cetyl trimethylammonium bromide and initiator are mixed to get mixture, and it is small that mixture is placed in into reaction 1-2 at 90-110 DEG C
When after drying and crushing.
In other embodiments of the invention, after above-mentioned addition initiator is reacted, in addition to reacted production
Emulsifying agent is added in thing to be emulsified, then is dried in vacuo.
In other embodiments of the invention, above-mentioned initiator is potassium peroxydisulfate or ammonium persulfate.
Also include before calcined bentonites：Bentonite is placed in water aquation 2-3 days, is subsequently placed at -50~-40 DEG C and freezes
It is placed in 90-110 DEG C of environment and dries after being thawed under knot 2-3 days, normal temperature.
In other embodiments of the invention, above-mentioned is 1-2%'s also including the material after crushing is placed in into mass concentration
Soaked in acid solution and particle with holes is made within 11-13 hours, washing particle with holes to pH is 6-7.
In other embodiments of the invention, above-mentioned acid is hydrochloric acid, sulfuric acid or acetic acid.
The beneficial effect of environmentally friendly bentone adsorbent provided in an embodiment of the present invention and preparation method thereof is：
By each organic matter to bead particles, alta-mud modification, the good adsorbent of absorption property is finally prepared.
Partially hydrolyzed polyacrylamide (PHPA) effectively can be grafted on starch, to improve grafting rate of the nonionic group on starch.It is micro-
Pearl particle can be good at being filled between bentonite clay particle, increases bulk density, passes through the mutual cooperation of each constituent；
Bead particles, bentonite outer surface are modified, change the micro-structural of surface-active and interlamination region, to improve its adsorptivity
Energy.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, are the conventional production that can be obtained by commercially available purchase
Product.
Environmentally friendly bentone adsorbent of the embodiment of the present invention and preparation method thereof is specifically described below.
A kind of environmentally friendly bentone adsorbent, its raw material mainly includes the following components counted by weight：60-75 parts swollen
Moisten soil, 7-13 parts of chitosan, 4-5 parts of starch, 4-5 parts of partially hydrolyzed polyacrylamide (PHPA), 0.7-1.5 parts of cetyl
Trimethylammonium bromide, 11-15 parts of particle diameter is 0.1 μm -5 μm of bead particles.
Chitosan is also known as chitosan, is that the chitin being widely present by nature is obtained by deacetylation
, chemical name is Chitosan (1-4) -2- amino-B-D glucose, and a significant properties of chitosan is adsorption capacity,
The material of many low molecule amounts, such as metal ion, cholesterol, triglycerides, cholic acid and organic mercury etc., can be by chitosan
Absorption.
Polyacrylamide (PAM) is high molecular weight water soluble polymer, it is to be understood that in an embodiment of the present invention,
The molecular weight of above-mentioned partially hydrolyzed polyacrylamide (PHPA) is 300 × 104-1000×104G/mol, degree of hydrolysis is 17%-26%.Can be with
Understand, in other embodiments of the invention, the degree of hydrolysis of polyacrylamide can also be other values.
Partially hydrolyzed polyacrylamide (PHPA) effectively can be grafted on starch, to improve nonionic group connecing on starch
Branch rate.Partially hydrolyzed polyacrylamide (PHPA), with certain water solubility.It can be crosslinked at high temperature, generation gel strength is stronger
Product.
Cetyl trimethylammonium bromide can increase the mobility of whole system as a kind of surfactant, increase
Each material mutually interspersed probability.
Bead particles are a kind of new ultra micro volcanic ash powder body materials, are a kind of continuous micron order materials, can be fine
Be filled between bentonite clay particle, increase bulk density, discharge Free water, reduce viscosity.
Pass through the mutual cooperation of each constituent in raw material, partially hydrolyzed polyacrylamide (PHPA), chitosan, starch, 16
Nonionic group is grafted between alkyl trimethyl ammonium bromide, the caking property between increase and remaining material, between increase molecule
Active force.Bentonite has multiple particle diameter series with bead particles, can mutually fill, and increases bulk density；Reduce simultaneously
Viscosity between polymer substance；When gas pass through be made up of above-mentioned substance system when, due to the active force between molecule, with
And space etc. will be adsorbed to it.
In other embodiments of the invention, above-mentioned raw materials also include：2-5 parts of potassium peroxydisulfate, 1-3 parts of sodium chloride.
Potassium peroxydisulfate, sodium chloride as initiator, can trigger the generation of cross-linking reaction.
In an embodiment of the present invention, above-mentioned bentonite is in sodium bentonite, calcium-base bentonite or organobentonite
It is any.Further, above-mentioned bentonite is sodium bentonite.
The present invention also provides a kind of technical scheme：
The preparation method of above-mentioned environmentally friendly bentone adsorbent, it includes：
Calcined bentonites and bead particles；By the product after calcining and partially hydrolyzed polyacrylamide (PHPA), chitosan, starch,
Cetyl trimethylammonium bromide and initiator are mixed to get mixture, and it is small that mixture is placed in into reaction 1-2 at 90-110 DEG C
When after drying and crushing.
In other embodiments of the invention, after above-mentioned addition initiator is reacted, in addition to reacted production
Emulsifying agent is added in thing to be emulsified, then is dried in vacuo.
The purpose of calcined bentonites and bead particles is to make the molecule that water inside bentonite etc. easily loses calcined
It is lost in journey, the product after calcining and remaining material mixing crosslink reaction.There is part side chain to stretch into during cross-linking reaction
The inside of bentonite and bead particles.There is non-ionic side chain in the product that cross-linking reaction is obtained, make due to intermolecular
Some materials can firmly be adsorbed, increase the adsorption capacity of final adsorbent.Adsorbed material will leave the adsorbent,
Need to overcome the active force between molecule.Due to the network structure of whole system, the active force between its molecule is larger；Adsorptivity
Can be stronger.
In other embodiments of the invention, above-mentioned initiator is potassium peroxydisulfate or ammonium persulfate.
Also include before calcined bentonites：Bentonite is placed in water aquation 2-3 days, is subsequently placed at -50~-40 DEG C and freezes
It is placed in 90-110 DEG C of environment and dries after being thawed under knot 2-3 days, normal temperature.
To bentonite carry out aquation, freeze, normal temperature unfreezing then dry；The process destroys the aggregation side of bentonite clay particle
Contact probability increase between formula, dispersiveness enhancing, particle, the distance between particle and particle reduce, particularly with viscosity
Fine grain presence, make to form network between particle.Directly contacted between particle, increase Fibre Suspensions when in rub
Wipe power.Internal friction increase, the external force increase that can be resisted.After material enters the system inside, it will be adsorbed by it.
Bentonite clay particle surface can form coating with the reactant of cross-linking reaction, be conducive to combined organic.
In other embodiments of the invention, the above method is also including the material after drying and crushing is placed in into mass concentration
Soaked in 1-2% acid solution and particle with holes is made within 11-13 hours, washing particle with holes to pH is 6-7.
In other embodiments of the invention, above-mentioned acid is hydrochloric acid, sulfuric acid or acetic acid.
During cross-linking reaction, the phenomenon of parcel is might have, it is washed using diluted acid, it can be increased
Absorption property.
The raw material of environmentally friendly bentone adsorbent provided in an embodiment of the present invention is easy to get, and the utilization rate of raw material is high.It is prepared
The reaction of method is gentle, and reaction condition is not harsh；So the energy-conserving and environment-protective in whole preparation process.
The feature and performance to the present invention are described in further detail with reference to embodiments.
Embodiment 1
The present embodiment provides a kind of environmentally friendly bentone adsorbent, is mainly made by following steps：
Weigh raw material：
60g bentonite, 7g chitosan, 4g starch, 4g partially hydrolyzed polyacrylamide (PHPA), 0.7g cetyl
Trimethylammonium bromide, the bead particles that 11g particle diameter is 0.1 μm.The molecular weight of which part hydrolyzed polyacrylamide be 300 ×
104-1000×104G/mol, polymer degree of hydrolysis is 17%-26%.
Calcined bentonites and bead particles；By the product after calcining and partially hydrolyzed polyacrylamide (PHPA), chitosan, starch,
Cetyl trimethylammonium bromide and initiator are mixed to get mixture, mixture are placed in after being reacted 2 hours at 90 DEG C and done
It is dry to crush.
Embodiment 2
The present embodiment provides a kind of environmentally friendly bentone adsorbent, is mainly made by following steps：
Weigh raw material：
65g bentonite, 13g chitosan, 5g starch, 4g partially hydrolyzed polyacrylamide (PHPA), 1.5g hexadecane
Base trimethylammonium bromide, the bead particles that 15g particle diameter is 0.1 μm -5 μm.The molecular weight of which part hydrolyzed polyacrylamide
For 300 × 104-1000×104G/mol, polymer degree of hydrolysis is 17%-26%.
Calcined bentonites and bead particles；By the product after calcining and partially hydrolyzed polyacrylamide (PHPA), chitosan, starch,
Cetyl trimethylammonium bromide and initiator are mixed to get mixture, mixture are placed in after being reacted 1-2 hours at 110 DEG C
Drying and crushing.
Embodiment 3
The present embodiment provides a kind of environmentally friendly bentone adsorbent, is mainly made by following steps：
Weigh raw material：
65g sodium bentonite, 13g chitosan, 5g starch, 4g partially hydrolyzed polyacrylamide (PHPA), the ten of 1.5g
Six alkyl trimethyl ammonium bromides, the bead particles that 15g particle diameter is 0.1 μm -5 μm.Point of which part hydrolyzed polyacrylamide
Son amount is 300 × 104-1000×104G/mol, polymer degree of hydrolysis is 17%-26%.
Sodium bentonite is placed in water aquation 3 days, is subsequently placed at -40 DEG C and freezes 2 days, is placed in after being thawed under normal temperature
Dried in 110 DEG C of environment, sodium bentonite is repeated 8 times aquation, freezes, dry.
Calcine sodium bentonite and bead particles；By the product after calcining and partially hydrolyzed polyacrylamide (PHPA), chitosan, shallow lake
Powder, cetyl trimethylammonium bromide and initiator are mixed to get mixture, mixture are placed in after being reacted 2 hours at 90 DEG C
Drying and crushing.
Embodiment 4
The present embodiment provides a kind of environmentally friendly bentone adsorbent, is mainly made by following steps：
Weigh raw material：
75g bentonite, 13g chitosan, 4g starch, 4g partially hydrolyzed polyacrylamide (PHPA), 0.7g hexadecane
Base trimethylammonium bromide, 2g potassium peroxydisulfate, 3g sodium chloride, the bead particles that 15g particle diameter is 0.1 μm -5 μm.Its middle part
The molecular weight for dividing hydrolyzed polyacrylamide is 300 × 104-1000×104G/mol, polymer degree of hydrolysis is 17%-26%.
Bentonite is placed in water aquation 3 days, is subsequently placed at -40 DEG C and freezes 3 days, 110 DEG C are placed in after being thawed under normal temperature
Environment in dry, bentonite is repeated 1 times aquation, freezes, dry.
Calcined bentonites and bead particles；By the product after calcining and partially hydrolyzed polyacrylamide (PHPA), chitosan, starch,
Cetyl trimethylammonium bromide and initiator are mixed to get mixture, mixture are placed in after being reacted 1 hour at 110 DEG C and done
It is dry to crush.
Embodiment 5
The present embodiment provides a kind of environmentally friendly bentone adsorbent, is mainly made by following steps：
Weigh raw material：
75g bentonite, 13g chitosan, 5g starch, 4g partially hydrolyzed polyacrylamide (PHPA), 1.5g hexadecane
Base trimethylammonium bromide, 5g potassium peroxydisulfate, 3g sodium chloride, the bead particles that 15g particle diameter is 0.1 μm -5 μm.Its middle part
The molecular weight for dividing hydrolyzed polyacrylamide is 300 × 104-1000×104G/mol, polymer degree of hydrolysis is 17%-26%.
Bentonite is placed in water aquation 3 days, is subsequently placed at -40 DEG C and freezes 2-3 days, 110 are placed in after being thawed under normal temperature
DEG C environment in dry, bentonite is repeated 8 times aquation, freezes, dry.
Calcined bentonites and bead particles；By the product after calcining and partially hydrolyzed polyacrylamide (PHPA), chitosan, starch,
Cetyl trimethylammonium bromide and initiator are mixed to get mixture, feed the mixture into after emulsifying agent is emulsified and are placed in
Drying and crushing after being reacted 1-2 hours at 110 DEG C.
Material after crushing is placed in immersion in the hydrochloric acid solution that mass concentration is 2% and particle with holes is made within 11 hours, is washed
Wash particle with holes to pH be 6-7.
Embodiment 6
The present embodiment provides a kind of environmentally friendly bentone adsorbent, is mainly made by following steps：
Weigh raw material：
75g bentonite, 13g chitosan, 4g starch, 4g partially hydrolyzed polyacrylamide (PHPA), 0.7g hexadecane
Base trimethylammonium bromide, 2g potassium peroxydisulfate, 1g sodium chloride, the bead particles that 11g particle diameter is 0.1 μm -5 μm.Its middle part
The molecular weight for dividing hydrolyzed polyacrylamide is 300 × 104-1000×104G/mol, polymer degree of hydrolysis is 17%-26%.
Bentonite is placed in water aquation 3 days, is subsequently placed at -40 DEG C and freezes 2-3 days, 110 are placed in after being thawed under normal temperature
DEG C environment in dry, bentonite is repeated 3 times aquation, freezes, dry.
Calcined bentonites and bead particles；By the product after calcining and partially hydrolyzed polyacrylamide (PHPA), chitosan, starch,
Cetyl trimethylammonium bromide and initiator are mixed to get mixture, mixture are placed in after being reacted 1 hour at 90 DEG C and done
It is dry to crush.
Material after crushing is placed in immersion in the hydrochloric acid solution that mass concentration is 1% and particle with holes is made within 13 hours, is washed
Wash particle with holes to pH be 6-7.
Test example
The environmentally friendly bentone adsorbent and natural montmorillonite that embodiment 1- embodiments 6 are prepared carry out absorption property
Measure.In detail, the environmentally friendly bentone adsorbent and natural montmorillonite 1- of embodiment of the present invention embodiments 6 prepared
Absorption to the benzene in water, dimethylbenzene and toluene is detected；Wherein before detection, the concentration of benzene and toluene in water
For 200mg/L；Concentration of the dimethylbenzene in water is 40mg/L；Testing result is as shown in table 1.
The embodiment 1-6 of table 1 product and the absorption property of natural montmorillonite
| Group | Benzene adsorbance mg/g | Toluene adsorbance mg/g | Dimethylbenzene adsorbance mg/g |
| Natural montmorillonite | 42 | 21 | 7 |
| Embodiment 1 | 58 | 42 | 14 |
| Embodiment 2 | 54 | 43 | 15 |
| Embodiment 3 | 55 | 40 | 13 |
| Embodiment 4 | 59 | 44 | 13 |
| Embodiment 5 | 60 | 43 | 15 |
| Embodiment 6 | 62 | 45 | 16 |
Understand environmentally friendly bentone adsorbent provided in an embodiment of the present invention to benzene, dimethylbenzene, Yi Jijia by the data in table 1
The adsorption effect of benzene is superior to absorption of the natural montmorillonite to it.
Organic substance chitosan, starch, partially hydrolyzed polyacrylamide (PHPA) etc. enter modification to bentonite surface, with starch, shell
The group of glycan etc. and the property of organic substance are relevant.The micro-structural of bentonite surfactant and interlamination region may also by
Change；To improve its absorption property.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of environmentally friendly bentone adsorbent, it is characterised in that the raw material of the environmentally friendly bentone adsorbent is mainly included by weight
Measure the following components of number meter：60-75 parts of bentonite, 7-13 parts of chitosan, 4-5 parts of starch, 4-5 parts of partial hydrolysis
Polyacrylamide, 0.7-1.5 parts of cetyl trimethylammonium bromide, the microballon that 11-15 parts of particle diameter is 0.1 μm -5 μm
Grain.
2. environmentally friendly bentone adsorbent according to claim 1, it is characterised in that the raw material also includes：2-5 parts of mistake
Potassium sulfate, 1-3 parts of sodium chloride.
3. environmentally friendly bentone adsorbent according to claim 1, it is characterised in that the bentonite be sodium bentonite,
Any of calcium-base bentonite or organobentonite.
4. environmentally friendly bentone adsorbent according to claim 1, it is characterised in that the partially hydrolyzed polyacrylamide (PHPA)
Molecular weight is 300 × 104-1000×104G/mol, degree of hydrolysis is 17%-26%.
5. the preparation method of the environmentally friendly bentone adsorbent as described in claim any one of 1-4, it is characterised in that including：
Calcine the bentonite and the bead particles；By the product after calcining and the partially hydrolyzed polyacrylamide (PHPA), described
Chitosan, the starch, the cetyl trimethylammonium bromide and initiator are mixed to get mixture, by the mixture
It is placed in drying and crushing after being reacted 1-2 hours at 90-110 DEG C.
6. the preparation method of environmentally friendly bentone adsorbent according to claim 5, it is characterised in that add the initiator
After being reacted, in addition to add emulsifying agent into reacted product and emulsified, then be dried in vacuo.
7. the preparation method of environmentally friendly bentone adsorbent according to claim 6, it is characterised in that the initiator was
Potassium sulfate or ammonium persulfate.
8. the preparation method of environmentally friendly bentone adsorbent according to claim 5, it is characterised in that the calcining bentonite
Also include before：The bentonite is placed in water aquation 2-3 days, is subsequently placed at -50~-40 DEG C and freezes 2-3 days, under normal temperature
It is placed in 90-110 DEG C of environment and dries after defrosting.
9. the preparation method of environmentally friendly bentone adsorbent according to claim 5, it is characterised in that also including by xeraphium
The particle obtained after broken is placed in immersion in the acid solution that mass concentration is 1-2% and particle with holes is made within 11-13 hours, and washing is described
Particle with holes to pH be 6-7.
10. the preparation method of environmentally friendly bentone adsorbent according to claim 9, it is characterised in that the acid is hydrochloric acid,
Sulfuric acid or acetic acid.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111167411A (en) * | 2020-01-17 | 2020-05-19 | 长沙凯天工研院环保服务有限公司 | Porous material based on montmorillonite and preparation method and application thereof |
| CN112090409A (en) * | 2020-10-27 | 2020-12-18 | 苏州凯乐希生态环境科技有限公司 | Carbon source medicament for sewage treatment and preparation method thereof |
| CN112246216A (en) * | 2020-09-28 | 2021-01-22 | 池秀珠 | Preparation method of modified bentonite applied to antimony-containing wastewater treatment |
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