CN106179254A - A kind of modified grass fiber adsorbent and preparation method thereof - Google Patents
A kind of modified grass fiber adsorbent and preparation method thereof Download PDFInfo
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- CN106179254A CN106179254A CN201610760886.9A CN201610760886A CN106179254A CN 106179254 A CN106179254 A CN 106179254A CN 201610760886 A CN201610760886 A CN 201610760886A CN 106179254 A CN106179254 A CN 106179254A
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- grass fiber
- adsorbent
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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
- 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
- B01J2220/485—Plants or land vegetals, e.g. cereals, wheat, corn, rice, sphagnum, peat moss
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of modified grass fiber adsorbent and preparation method thereof.Herba Clinopodii Polycephali contains a large amount of cellulose, prepares adsorbent with Herba Clinopodii Polycephali for cellulose origin.Concrete technology is: cleaned by Herba Clinopodii Polycephali successively, dry, pulverize, fully react with isopropanol again, then product filtered successively, clean, be dried, again dried object is alkalized with potassium hydroxide solution, again product filtered successively, clean, be dried, it is neutralized with citric acid solution afterwards, then with distilled water cleaning solution to neutral, finally by solution filtration, drying product.
Description
Technical field
The present invention relates to a kind of adsorbent, particularly to one using grass fiber as raw material, a kind of absorption of modified preparation
Agent and method, belong to adsorbing material field.
Background technology
Along with developing rapidly of process of industrialization, many waste water of industrial discharge such as plating, ore dressing and process hides, waste gas and useless
Slag often results in the heavy metal pollution of water environment, heavy metal can not biodegradation, and live body in be enriched with, cause various disease
Disorderly with body, very harmful to organism.
The technique that efficiently separates being presently used for removing heavy metal ions in sewage has: at the exchange of precipitation, ion, electrochemistry
Reason, membrane technology, evaporation coagulation, reverse osmosis and electrodialysis etc., but the application of these technology is limited, closely by technique and economy sometimes
Over Nian, organism absorption by living is removed the method for heavy metal and has been caused concern, this method mainly utilize hyperaccumulative plant,
Algae and microorganism heavy metal have bigger absorbability to remove the heavy metal in waste water, but process dirt with the organism lived
Water is limited by Biomass and the growth characteristics of organism itself, and such method is also unsuitable for applying on a large scale the most so far.
Modified cellulose class adsorbent is one of important development direction of current cellulose functional high molecule material.Such adsorbent does not draws
Entering new pollutant, consume energy low, so there being important application in water processes, and being more easy to regeneration than adsorbent resin again, and
Stability is high, and adsorptive selectivity is special, and adsorbent price is far below adsorbent resin.
Herba Clinopodii Polycephali contains a large amount of cellulose, widely distributed China various places, is also a kind of farmland weed, with Herba Clinopodii Polycephali as fiber
Usually a kind of Land use systems that adsorbent is abandoned biomass resource is prepared in source, and can realize utilizing a kind of abandoned biomass resource
The problem curbed environmental pollution.The present invention is using Herba Clinopodii Polycephali as raw material, at the work of isopropanol, NaOH solution and citric acid solution
Under with, modification is prepared as a kind of biomass adsorbent.
Summary of the invention
The present invention is to provide a kind of modified grass fiber adsorbent and preparation method thereof.This preparation method passes through techniques below road
Line realizes:
(1) Herba Clinopodii Polycephali clean water is removed earth, then cleans with distilled water and put into and baking oven is carried out dry to constant weight；
(2) dried object pulverizer is pulverized, sieve；
(3) with a container collection powder, then toward container is poured into the isopropanol of certain solubility, and it is stirred continuously and makes it fully react；
(4) being filtered by solution, and be carried out with distilled water, wash products is placed in drying baker and dries；
(5) dry product to be reentered in container, then pour the potassium hydroxide solution of certain solubility into, and be stirred continuously and make it abundant
Reaction；
(6) being filtered by solution, and be carried out with distilled water, wash products is placed in drying baker and dries；
(7) dry product to be reentered in container, then pour the citric acid solution of certain solubility into, and be stirred continuously and make it the most anti-
Should；It is neutral that the most last distilled water is washed till solution, and filters, after drying product.
Preferentially, step (1) in, dry temperature be 50-70 DEG C.
Preferentially, step (2) in, the mesh number of sieve is 100-200 mesh.
Preferentially, step (3) in, the solubility of isopropanol is 15-20%, and the response time is 12-15 hour.
Preferentially, step (4), (6), (8) in, dry temperature conditions be at 50-60 DEG C, drying time is 10-20 hour.
Preferentially, step (5) in, the solubility of potassium hydroxide is 0.1-0.5mol/L, and the response time is 1-2 hour.
Preferentially, step (7) in, the solubility of citric acid is 0.5-1mol/L, and the response time is 2-4 hour.
The present invention has following advantages and a characteristic:
(1) abundant raw material source, with low cost；
The most environmentally friendly, not secondary pollution.
Detailed description of the invention
Embodiment one:
Take Herba Clinopodii Polycephali clean water and remove earth, then clean with distilled water, be then placed in the baking oven under the conditions of 50 DEG C carrying out
Dry to constant weight, then dried object pulverizer is pulverized, cross 200 mesh sieves, weigh 10g powder and put in a container, then toward container
In to pour solubility into be 15% isopropanol, and be stirred continuously and make it fully react, after 12 hours, solution is filtered, and enter with distilled water
Row cleans, and wash products is placed in the drying baker under the conditions of 50 DEG C and dries, and after drying 20 hours, drying object is reentered into appearance
In device, then pour the potassium hydroxide solution of 0.1mol/L into, and be stirred continuously and make it fully react, after 2 hours, solution is filtered, and
Being carried out with distilled water, wash products is placed in the drying baker under the conditions of 50 DEG C and dries, and after drying 20 hours, dries and produces
Thing is reentered in container, then pours the citric acid solution of 0.5mol/L into, and solution was filtered after 4 hours by stirring reaction, and with steaming
It is neutrality that distilled water is carried out to solution, is finally placed in the drying baker under the conditions of 50 DEG C and dries, after drying 20 hours i.e.
Product can be obtained.
Embodiment two:
Take Herba Clinopodii Polycephali clean water and remove earth, then clean with distilled water, be then placed in the baking oven under the conditions of 60 DEG C carrying out
Dry to constant weight, then dried object pulverizer is pulverized, cross 100 mesh sieves, weigh 20g powder and put in a container, then toward container
In to pour solubility into be 18% isopropanol, and be stirred continuously and make it fully react, after 13 hours, solution is filtered, and enter with distilled water
Row cleans, and wash products is placed in the drying baker under the conditions of 55 DEG C and dries, and after drying 15 hours, drying object is reentered into appearance
In device, then pour the potassium hydroxide solution of 0.5mol/L into, and be stirred continuously and make it fully react, after 1 hour, solution is filtered, and
Being carried out with distilled water, wash products is placed in the drying baker under the conditions of 55 DEG C and dries, and after drying 15 hours, dries and produces
Thing is reentered in container, then pours the citric acid solution of 1mol/L into, and solution was filtered after 2 hours by stirring reaction, and with distilling
It is neutrality that water is carried out to solution, is finally placed in the drying baker under the conditions of 55 DEG C and dries, after drying 15 hours
Obtain product.
Embodiment three:
Take Herba Clinopodii Polycephali clean water and remove earth, then clean with distilled water, be then placed in the baking oven under the conditions of 70 DEG C carrying out
Dry to constant weight, then dried object pulverizer is pulverized, cross 100 mesh sieves, weigh 20g powder and put in a container, then toward container
In to pour solubility into be 20% isopropanol, and be stirred continuously and make it fully react, after 15 hours, solution is filtered, and enter with distilled water
Row cleans, and wash products is placed in the drying baker under the conditions of 60 DEG C and dries, and after drying 10 hours, drying object is reentered into appearance
In device, then pour the potassium hydroxide solution of 0.5mol/L into, and be stirred continuously and make it fully react, after 1 hour, solution is filtered, and
Being carried out with distilled water, wash products is placed in the drying baker under the conditions of 60 DEG C and dries, and after drying 10 hours, dries and produces
Thing is reentered in container, then pours the citric acid solution of 1mol/L into, and solution was filtered after 2 hours by stirring reaction, and with distilling
It is neutrality that water is carried out to solution, is finally placed in the drying baker under the conditions of 60 DEG C and dries, after drying 10 hours
Obtain product.
Claims (7)
1. a modified grass fiber adsorbent, it is characterised in that the preparation method of this adsorbent comprises the steps:
(1) Herba Clinopodii Polycephali clean water is removed earth, then cleans with distilled water and put into and baking oven is carried out dry to constant weight；
(2) dried object pulverizer is pulverized, sieve；
(3) with a container collection powder, then toward container is poured into the isopropanol of certain solubility, and it is stirred continuously and makes it fully react；
(4) being filtered by solution, and be carried out with distilled water, wash products is placed in drying baker and dries；
(5) dry product to be reentered in container, then pour the potassium hydroxide solution of certain solubility into, and be stirred continuously and make it abundant
Reaction；
(6) being filtered by solution, and be carried out with distilled water, wash products is placed in drying baker and dries；
(7) dry product to be reentered in container, then pour the citric acid solution of certain solubility into, and be stirred continuously and make it the most anti-
Should；It is neutral that the most last distilled water is washed till solution, and filters, after drying product.
A kind of modified grass fiber adsorbent the most according to claim 1, it is characterised in that step (1) in, drying temperature is
50-70℃。
A kind of modified grass fiber adsorbent the most according to claim 1, it is characterised in that step (2) in, the mesh number of sieve is
100-200 mesh.
A kind of modified grass fiber adsorbent the most according to claim 1, it is characterised in that step (3) in, isopropanol molten
Degree is 15-20%, and the response time is 12-15 hour.
A kind of modified grass fiber adsorbent the most according to claim 1, it is characterised in that step (4), (6), (8) in, dry
Temperature conditions is at 50-60 DEG C, and drying time is 10-20 hour.
A kind of modified grass fiber adsorbent the most according to claim 1, it is characterised in that step (5) in, potassium hydroxide is molten
The solubility of liquid is 0.1-0.5mol/L, and the response time is 1-2 hour.
A kind of modified grass fiber adsorbent the most according to claim 1, it is characterised in that step (7) in, citric acid molten
Degree is 0.5-1mol/L, and the response time is 2-4 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610760886.9A CN106179254A (en) | 2016-08-31 | 2016-08-31 | A kind of modified grass fiber adsorbent and preparation method thereof |
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| CN201610760886.9A CN106179254A (en) | 2016-08-31 | 2016-08-31 | A kind of modified grass fiber adsorbent and preparation method thereof |
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| CN106179254A true CN106179254A (en) | 2016-12-07 |
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| CN201610760886.9A Pending CN106179254A (en) | 2016-08-31 | 2016-08-31 | A kind of modified grass fiber adsorbent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108525645A (en) * | 2017-03-06 | 2018-09-14 | 西南石油大学 | A kind of preparation and application of peach-pit modified adsorbent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536715A (en) * | 2015-12-20 | 2016-05-04 | 吴涛 | Method for preparation of adsorption material by using maple leaf |
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2016
- 2016-08-31 CN CN201610760886.9A patent/CN106179254A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536715A (en) * | 2015-12-20 | 2016-05-04 | 吴涛 | Method for preparation of adsorption material by using maple leaf |
Non-Patent Citations (1)
| Title |
|---|
| 朱国才等: "《生物质还原氧化锰矿工艺与技术》", 30 April 2014, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108525645A (en) * | 2017-03-06 | 2018-09-14 | 西南石油大学 | A kind of preparation and application of peach-pit modified adsorbent |
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Application publication date: 20161207 |