CN107233864A - A kind of preparation method of the retaining soil moisture adsorbent based on lobster shell - Google Patents
A kind of preparation method of the retaining soil moisture adsorbent based on lobster shell Download PDFInfo
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- CN107233864A CN107233864A CN201710570330.8A CN201710570330A CN107233864A CN 107233864 A CN107233864 A CN 107233864A CN 201710570330 A CN201710570330 A CN 201710570330A CN 107233864 A CN107233864 A CN 107233864A
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- parts
- weight
- lobster shell
- soil moisture
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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
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- 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
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4881—Residues from shells, e.g. eggshells, mollusk shells
Abstract
The invention discloses a kind of preparation method of the retaining soil moisture adsorbent based on lobster shell; ball grinds after carrying out acid treatment drying through persalt first with lobster shell; the lobster shell of ball grinds is dissolved in into dropwise addition acryloyl chloride after methanesulfonic acid to be reacted; add bentonite; add alkali after long agitation to be reacted with epoxychloropropane, mixing progress compost fermentation after addition bio-fermentation agent with stalk particle after treatment afterwards both obtains.Material prepared by the present invention can quickly catch the heavy metal ion of simultaneously strong adsorption, wide to the concentration tolerance range of metal ion, and selectivity is strong, adsorption effect is notable.
Description
Technical field
The invention belongs to adsorption by soil agent technical field, and in particular to a kind of retaining soil moisture adsorbent based on lobster shell
Preparation method.
Background technology
China cray industry is developed rapidly in recent years, while national material life is met, is also generated substantial amounts of
Using shrimp shell as the discarded object of representative.Chitin is natural high as obtained from shrimp, crab or insect shell pass through soda acid working process
Molecular material, and chitosan is the derivative of chitin, therefore, is prepared using accessory substance-shrimp shell of cray chitosan-based
Compound bio sorbing material, can be achieved to turn waste into wealth, twice laid, embody the theory of recycling economy.
Shrimp, crab class are a kind of abundant natural resources in the marine site of lake, they it is delicious except being provided to people it is carnivorous in addition to,
Also a large amount of pending crust resources are left for people.In order to reasonably utilize these abundant crust resources, in recent years from shrimp
The research of chitin extraction and its derivative in shell, increasingly causes the attention of Study on Environmental Protection scholar.Chitin is white,
For translucent solid；Chitosan is white or light yellow, is chip solid, and chitosan can be deposited very long one section in dry conditions
Time.The relative molecular mass of chitin and chitosan because raw material and preparation method Bu Tong from it is hundreds thousand of to millions of not
Deng.
The content of the invention
The present invention provides a kind of preparation method of the retaining soil moisture adsorbent based on lobster shell, material energy prepared by the present invention
The quick heavy metal ion for catching simultaneously strong adsorption, wide to the concentration tolerance range of metal ion, selectivity is strong, adsorption effect shows
Write.
The present invention is achieved by the following technical solutions：
A kind of preparation method of the retaining soil moisture adsorbent based on lobster shell, comprises the following steps：
（1）20-30 parts by weight lobster shell is added into 50-80 parts by weight 0.1-0.5mol/L aqueous hydrochloric acid solutions in 20-25 DEG C of normal temperature
After lower stirring 2-5 hours, after being washed with water 3-4 times, dry, dried at a temperature of 105-115 DEG C, 60-90 points of ball mill ball milling
Zhong Hou, obtains stand-by after powder；
（2）By step（1）Dissolving after powder is dissolved in 100-150 parts by weight methanesulfonic acids, keeps 40-50 DEG C of magnetic agitation that 2- is added dropwise
5 parts by weight propylene acyl chlorides, during which condensing reflux, 25-35 DEG C of constant temperature is stirred 2-8 hours, stand-by；
（3）To step（2）5-15 parts by weight sodium bentonite powder is added in gains, after stirring at low speed 12-24 hours,
150-200 parts by weight 20-25% sodium hydroxide solutions are added, 5-10 parts by weight epoxy chloropropanes, 50-80 DEG C of company are added later
Continuous high-speed stirred is after 2-4 hours, after the completion of stirring, by suction filtration, washs, and dries, and grinding is stand-by；
（4）By 20-30 parts by weight stalk particle and step（2）Gains are mixed, and add 1-2 parts by weight bio-fermentation agent and appropriate
Water is stirred and evenly mixed, fermentation reactor system 10-20 days, and progress in 4-5 days is stirred one time, discharging, has both been obtained the retaining soil moisture based on lobster shell and has been inhaled
Attached dose.
The step（1）Ball milling be by charged ball grinder be fixed on ball mill with 200-300r/min turn
After fast ball milling 30-40 minutes, then ball grinder is removed, rocked 5-10 times up and down, ball grinder is then once again secured in ball milling
On machine, ball milling is continued 20-60 minutes according to parameter 200-300r/min.
The step（3）In low speed be 100-150r/min, be at a high speed 250-350r/min.
Described stalk is rice straw, maize straw, wheat stalk, soybean stalk, one kind or several in rape stalk
Kind.
Described stalk particle is ground into the particle that particle diameter is 40-80 mesh for the stalk after cleaning is placed in pulverizer.
It is an advantage of the invention that：
（1）Ball grinds after the present invention carries out acid treatment drying first with lobster shell through persalt, by the lobster of ball grinds
Shell is dissolved in dropwise addition acryloyl chloride after methanesulfonic acid and reacted, and adds bentonite, alkali and epoxy are added after long agitation
Chloropropane is reacted, and mixing progress compost fermentation after addition bio-fermentation agent with stalk particle after treatment afterwards both obtains.
Lobster shell goes out calcium salt, protein by HCl treatment, sloughs long-chain after part second phthalidyl, ball milling and is broken, short chain increase, dragon
The hydroxyl of chitosan in shrimp shell is carried out after graft reaction with acryloyl chloride, and small molecule is introduced on lobster shell powder, can be right
Heavy metal ion catch and adsorbs the water resistance for also improving material, and lobster shell contains more amino, carried during dissolving
Positive charge, bentonitic interlayer has negative electrical charge, and bentonite and chitosan are combined together by the attraction of positive and negative charge, during compost
The stalk of addition has water retention also while showing excellent adsorption effect.
（2）Material prepared by the present invention can quickly catch the heavy metal ion of simultaneously strong adsorption, to the concentration of metal ion
Tolerance range is wide, and selectivity is strong, adsorption effect is notable.
Embodiment
A kind of preparation method of the retaining soil moisture adsorbent based on lobster shell, comprises the following steps：
（1）25 parts by weight lobster shells are added into the stirring 3 at 25 DEG C of normal temperature of 65 parts by weight 0.1-0.5mol/L aqueous hydrochloric acid solutions small
Shi Hou, is washed with water after 3 times, dries, and is dried at a temperature of 110 DEG C, and ball mill ball milling obtains stand-by after powder after 75 minutes；
（2）By step（1）Dissolving after powder is dissolved in 130 parts by weight methanesulfonic acids, keeps 45 DEG C of magnetic agitations that 3 parts by weight third are added dropwise
Alkene acyl chlorides, during which condensing reflux, 30 DEG C of constant temperature are stirred 5 hours, stand-by；
（3）To step（2）10 parts by weight sodium bentonite powder are added in gains, after stirring at low speed 18 hours, are added
180 parts by weight 20-25% sodium hydroxide solutions, add 7 parts by weight epoxy chloropropanes later, and 65 DEG C of continuous high speeds are stirred 3 hours
Afterwards, after the completion of stirring, by suction filtration, wash, dry, grinding is stand-by；
（4）By 25 parts by weight stalk particles and step（2）Gains are mixed, and add 1.5 parts by weight bio-fermentation agents and suitable quantity of water
Stir and evenly mix, fermentation reactor system 15 days, progress in 5 days is stirred one time, discharge, both obtain the retaining soil moisture adsorbent based on lobster shell.
The step（1）Ball milling for charged ball grinder is fixed on ball mill with 250r/min rotating speed ball
Then ball grinder is removed after 35 minutes, rocks 8 times, then ball grinder is once again secured on ball mill, according to ginseng up and down by mill
Number 250r/min continues ball milling 40 minutes.
The step（3）In low speed be 130r/min, be at a high speed 300r/min.
Described stalk is rice straw, maize straw, wheat stalk, soybean stalk, one kind or several in rape stalk
Kind.
Described stalk particle is ground into the particle that particle diameter is 40-80 mesh for the stalk after cleaning is placed in pulverizer.
Claims (5)
1. a kind of preparation method of the retaining soil moisture adsorbent based on lobster shell, it is characterised in that comprise the following steps：
（1）20-30 parts by weight lobster shell is added into 50-80 parts by weight 0.1-0.5mol/L aqueous hydrochloric acid solutions in 20-25 DEG C of normal temperature
After lower stirring 2-5 hours, after being washed with water 3-4 times, dry, dried at a temperature of 105-115 DEG C, 60-90 points of ball mill ball milling
Zhong Hou, obtains stand-by after powder；
（2）By step（1）Dissolving after powder is dissolved in 100-150 parts by weight methanesulfonic acids, keeps 40-50 DEG C of magnetic agitation that 2- is added dropwise
5 parts by weight propylene acyl chlorides, during which condensing reflux, 25-35 DEG C of constant temperature is stirred 2-8 hours, stand-by；
（3）To step（2）5-15 parts by weight sodium bentonite powder is added in gains, after stirring at low speed 12-24 hours,
150-200 parts by weight 20-25% sodium hydroxide solutions are added, 5-10 parts by weight epoxy chloropropanes, 50-80 DEG C of company are added later
Continuous high-speed stirred is after 2-4 hours, after the completion of stirring, by suction filtration, washs, and dries, and grinding is stand-by；
（4）By 20-30 parts by weight stalk particle and step（2）Gains are mixed, and add 1-2 parts by weight bio-fermentation agent and appropriate
Water is stirred and evenly mixed, fermentation reactor system 10-20 days, and progress in 4-5 days is stirred one time, discharging, has both been obtained the retaining soil moisture based on lobster shell and has been inhaled
Attached dose.
2. a kind of preparation method of retaining soil moisture adsorbent based on lobster shell according to claim 1, it is characterised in that
The step（1）Ball milling for charged ball grinder is fixed on ball mill with 200-300r/min rotating speed ball milling 30-
After 40 minutes, then ball grinder is removed, rocked 5-10 times up and down, then ball grinder is once again secured on ball mill, according to
Parameter 200-300r/min continues ball milling 20-60 minutes.
3. a kind of preparation method of retaining soil moisture adsorbent based on lobster shell according to claim 1, it is characterised in that
The step（3）In low speed be 100-150r/min, be at a high speed 250-350r/min.
4. a kind of preparation method of retaining soil moisture adsorbent based on lobster shell according to claim 1, it is characterised in that
Described stalk is rice straw, maize straw, wheat stalk, soybean stalk, the one or more in rape stalk.
5. a kind of preparation method of retaining soil moisture adsorbent based on lobster shell according to claim 1, it is characterised in that
Described stalk particle is ground into the particle that particle diameter is 40-80 mesh for the stalk after cleaning is placed in pulverizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570330.8A CN107233864A (en) | 2017-07-13 | 2017-07-13 | A kind of preparation method of the retaining soil moisture adsorbent based on lobster shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570330.8A CN107233864A (en) | 2017-07-13 | 2017-07-13 | A kind of preparation method of the retaining soil moisture adsorbent based on lobster shell |
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| CN107233864A true CN107233864A (en) | 2017-10-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701805A (en) * | 2012-04-18 | 2012-10-03 | 武汉日清生物科技有限公司 | Organic fertilizer produced from plant straws by aerobic fermentation and preparation method thereof |
| CN105032372A (en) * | 2015-09-11 | 2015-11-11 | 江苏振宇环保科技有限公司 | Method for preparing chitosan-bentonite adsorbing material prepared from shrimp shells |
| CN106242725A (en) * | 2016-07-22 | 2016-12-21 | 北京西拓联合生态科技有限公司 | One makees organic fertilizer and preparation method thereof |
| CN106311164A (en) * | 2016-11-04 | 2017-01-11 | 西南石油大学 | Amidoxime group-containing chitosan modified adsorbent and preparation method thereof |
-
2017
- 2017-07-13 CN CN201710570330.8A patent/CN107233864A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701805A (en) * | 2012-04-18 | 2012-10-03 | 武汉日清生物科技有限公司 | Organic fertilizer produced from plant straws by aerobic fermentation and preparation method thereof |
| CN105032372A (en) * | 2015-09-11 | 2015-11-11 | 江苏振宇环保科技有限公司 | Method for preparing chitosan-bentonite adsorbing material prepared from shrimp shells |
| CN106242725A (en) * | 2016-07-22 | 2016-12-21 | 北京西拓联合生态科技有限公司 | One makees organic fertilizer and preparation method thereof |
| CN106311164A (en) * | 2016-11-04 | 2017-01-11 | 西南石油大学 | Amidoxime group-containing chitosan modified adsorbent and preparation method thereof |
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Application publication date: 20171010 |