CN106732386B - A kind of preparation method with polyethylene glycol and organic quick lime composite drying agent - Google Patents
A kind of preparation method with polyethylene glycol and organic quick lime composite drying agent Download PDFInfo
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- CN106732386B CN106732386B CN201611079711.8A CN201611079711A CN106732386B CN 106732386 B CN106732386 B CN 106732386B CN 201611079711 A CN201611079711 A CN 201611079711A CN 106732386 B CN106732386 B CN 106732386B
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- quick lime
- polyethylene glycol
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- drying agent
- ball mill
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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
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
-
- 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
Abstract
Disclosed by the invention is a kind of preparation method with polyethylene glycol and organic quick lime composite drying agent, quick lime and ethylene glycol are added in the vacuum ball grinder of planetary ball mill, take out the air in vacuum ball grinder, nitrogen is filled with to be ground, after grinding, products obtained therefrom is dried and is taken out, it obtains with ethylene glycol and organic quick lime composite drying agent, organic quick lime composite drying agent moisture absorption prepared by the present invention is good, reacts and mitigates after water suction, safety is good, process is simple, at low cost, no coupling product production, environmental protection and energy saving are suitble to large-scale production.
Description
Technical field
The present invention relates to a kind of preparation methods with polyethylene glycol and organic quick lime composite drying agent, belong to desiccant system
Standby field.
Background technique
Quick lime is the common desiccant that vapor is removed using chemical absorption method, is also used for steel, pesticide, medicine, does
Drying prescription, process hides and dehydration of alcohol etc..Especially suitable for the local and special products such as dilated food, mushroom, agaric and instrument, medicine,
The product of the industries such as dress ornament, electronics telecommunication, leather, weaving.It usually is heated to 500-600 DEG C by substance calciferous, makes it
It is decomposed into calcium oxide and carbon dioxide.Shape is white, unformed, is widely used in desiccant, typically contains in quick lime
Excessive fire lime and the lime that has not been cooked or heated long enough, excessive fire lime structure is closely knit, and surface often coats one layer of fusant, dissolves very slowly, in the lime that has not been cooked or heated long enough
Calcium carbonate do not decompose completely, when use, lacks cohesive force.Quick lime can be chemically reacted with water, will be heated to surpass at once
More 300 DEG C of high temperature.Since fierce chemical reaction (hydration reaction) can occur for quick lime and water, calcium hydroxide is generated, is had
Extremely strong water imbibition can be used as a kind of fabulous desiccant raw material.But calcium oxide react when can sharply heat release, reaction swash
It is strong, uncontrollability is shown, fire occurs when can cause explosion and storage often.
Polyethylene glycol product is nontoxic, nonirritant, mildly bitter flavor, have good water solubility, and with many organic matter components
There is good intermiscibility.They have excellent lubricity, moisture retention, dispersibility, bonding agent, antistatic agent and softening agent etc.,
In the industries such as cosmetics, pharmacy, chemical fibre, rubber, plastics, papermaking, paint, plating, pesticide, intermetallic composite coating and food processing
There is extremely wide application.
Summary of the invention
The present invention, which provides, has preparation simple, using technical characterstics such as safe, drying effect is good, suitable large-scale production
A kind of preparation method preparation method with polyethylene glycol and organic quick lime composite drying agent.
A kind of preparation method with polyethylene glycol and organic quick lime composite drying agent provided by the invention, it is using as follows
Step:
1) mass fraction is pressed, takes 100 parts of lump limes, 5-13 parts of ethylene glycol carry out brokenly 100 parts of lump limes
Broken, ground 100-240 mesh is placed in vacuum planetary ball mill tank, and vacuum planetary ball mill tank is vacuumized, nitrogen is filled with, adds
Enter 5-13 parts of ethylene glycol, in vacuum planetary ball mill tank under the conditions of 40-50 DEG C, with 1000-2000r/min grinding rate, grinds
Mill reaction 1-1.5h, then at the uniform velocity reduces grinding rate, until stopping grinding completely, keeps the quiet reaction 0.5-1h of vacuum, obtains
Product A;
2) the product A for taking step 1) to obtain in the baking oven under the conditions of being placed in 105-110 DEG C, dries 1-2h, obtains 3-6mm
The organic quick lime composite drying agent of graininess.
As an improvement organic quick lime surface aggregate has polyethylene glycol, the average molecular of the polyethylene glycol
Amount is between 100000-2000000.
A kind of preparation method with polyethylene glycol and organic quick lime composite drying agent provided by the invention, it is using as follows
Step:
1) mass fraction is pressed, takes 100 parts of lump limes, 100 parts of lump limes are crushed, grind by 9 parts of ethylene glycol
Honed 170 mesh is placed in vacuum planetary ball mill tank, and vacuum planetary ball mill tank is vacuumized, nitrogen is filled with, and 9 parts of second two are added
Alcohol, in vacuum planetary ball mill tank under the conditions of 45 DEG C, with 1500r/min grinding rate, then griding reaction 1.3h at the uniform velocity drops
Low grinding rate keeps the quiet reaction 0.8h of vacuum until stopping grinding completely, obtains product A;
2) the product A for taking step 1) to obtain in the baking oven under the conditions of being placed in 107 DEG C, dries 1.5h, obtains of 4.5mm
Granular organic quick lime composite drying agent.
As an improvement organic quick lime surface aggregate that step 2) obtains has polyethylene glycol, the poly- second two
The relative molecular weight of alcohol is 1050000.
Profitable effect of the invention: organic quick lime composite drying agent moisture absorption prepared by the present invention is good, after water suction
Reaction mitigates, and safety is good, and process is simple, at low cost, and no coupling product production, environmental protection and energy saving are suitble to large-scale production;Poly- second two
Alcohol itself has good wash water, prevent the moisture in air by quick lime from directly being absorbed, polyethylene glycol absorbs first
Moisture is then passed to quick lime, avoids quick lime and directly quickly absorbs moisture, vigorous reaction occurs, and generates a large amount of heat,
Cause security risk;Polyethylene glycol tensile strength itself is big, explodes to quick lime, has protective action.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail:
A kind of preparation method with polyethylene glycol and organic quick lime composite drying agent of the present invention, using following step
It is rapid:
1) mass fraction is pressed, takes 100 parts of lump limes, 5-13 parts of ethylene glycol carry out brokenly 100 parts of lump limes
Broken, ground 100-240 mesh is placed in vacuum planetary ball mill tank, and vacuum planetary ball mill tank is vacuumized, nitrogen is filled with, adds
Enter 5-13 parts of ethylene glycol, in vacuum planetary ball mill tank under the conditions of 40-50 DEG C, with 1000-2000r/min grinding rate, grinds
Mill reaction 1-1.5h, then at the uniform velocity reduces grinding rate, until stopping grinding completely, keeps the quiet reaction 0.5-1h of vacuum, obtains
Product A;
2) the product A for taking step 1) to obtain in the baking oven under the conditions of being placed in 105-110 DEG C, dries 1-2h, obtains 3-6mm
The organic quick lime composite drying agent of graininess.
As an improvement embodiment, organic quick lime surface aggregate has polyethylene glycol, the polyethylene glycol
Relative molecular weight is between 100000-2000000.
Embodiment 1: a kind of preparation method with polyethylene glycol and organic quick lime composite drying agent, the preparation method use
Following steps:
1) mass fraction is pressed, takes 100 parts of lump limes, 100 parts of lump limes are crushed, grind by 5 parts of ethylene glycol
Mill sieves with 100 mesh sieve, and is placed in vacuum planetary ball mill tank, and vacuum planetary ball mill tank is vacuumized, nitrogen is filled with, and 5 parts of second two are added
Alcohol, in vacuum planetary ball mill tank under the conditions of 40 DEG C, with 1000r/min grinding rate, then griding reaction 1h is at the uniform velocity reduced
Grinding rate keeps the quiet reaction 0.5h of vacuum until stopping grinding completely, obtains product A;
2) the product A for taking step 1) to obtain in the baking oven under the conditions of being placed in 105 DEG C, dries 1h, obtains the graininess of 3mm
Organic quick lime composite drying agent, organic quick lime surface aggregate have polyethylene glycol, the average molecular of the polyethylene glycol
Amount is 100000.
Embodiment 2: a kind of preparation method with polyethylene glycol and organic quick lime composite drying agent, the preparation method use
Following steps:
1) mass fraction is pressed, takes 100 parts of lump limes, 100 parts of lump limes are crushed, grind by 9 parts of ethylene glycol
Honed 170 mesh is placed in vacuum planetary ball mill tank, and vacuum planetary ball mill tank is vacuumized, nitrogen is filled with, and 9 parts of second two are added
Alcohol, in vacuum planetary ball mill tank under the conditions of 45 DEG C, with 1500r/min grinding rate, then griding reaction 1.3h at the uniform velocity drops
Low grinding rate keeps the quiet reaction 0.8h of vacuum until stopping grinding completely, obtains product A;
2) the product A for taking step 1) to obtain in the baking oven under the conditions of being placed in 107 DEG C, dries 1.5h, obtains of 4.5mm
Granular organic quick lime composite drying agent, organic quick lime surface aggregate have a polyethylene glycol, the polyethylene glycol it is opposite
Molecular weight is 1050000.
Embodiment 3: a kind of preparation method with polyethylene glycol and organic quick lime composite drying agent, the preparation method use
Following steps:
1) mass fraction to be pressed, 100 parts of lump limes are taken, 100 parts of lump limes are crushed by 13 parts of ethylene glycol,
Ground 240 mesh is placed in vacuum planetary ball mill tank, and vacuum planetary ball mill tank is vacuumized, nitrogen is filled with, and 13 parts of second are added
Glycol, in vacuum planetary ball mill tank under the conditions of 50 DEG C, with 2000r/min grinding rate, griding reaction 1.5h, then at the uniform velocity
Grinding rate is reduced, until stopping grinding completely, the quiet reaction 1h of vacuum is kept, obtains product A;
2) the product A for taking step 1) to obtain in the baking oven under the conditions of being placed in 110 DEG C, dries 2h, obtains the particle of 3-6mm
The organic quick lime composite drying agent of shape, organic quick lime surface aggregate have polyethylene glycol, and the opposite of the polyethylene glycol is divided
Son amount is 2000000.
Embodiment of the present invention is not limited to 3 embodiments described above, by aforementioned disclosed numberical range,
With regard to carrying out any replacement in specific embodiment, so as to obtain numerous embodiment, this is not enumerated.
Claims (2)
1. a kind of preparation method with polyethylene glycol and organic quick lime composite drying agent, it is characterised in that the preparation method uses
Following steps:
1) mass fraction is pressed, takes 100 parts of lump limes, 100 parts of lump limes are crushed, grind by 5-13 parts of ethylene glycol
Honed 100-240 mesh is placed in vacuum planetary ball mill tank, and vacuum planetary ball mill tank is vacuumized, and is filled with nitrogen, and 5-13 is added
Part ethylene glycol, in vacuum planetary ball mill tank under the conditions of 40-50 DEG C, with 1000-2000r/min grinding rate, griding reaction
Then 1-1.5h at the uniform velocity reduces grinding rate, until stopping grinding completely, keep the quiet reaction 0.5-1h of vacuum, obtain product A;
Organic quick lime surface aggregate has a polyethylene glycol, the relative molecular weight of the polyethylene glycol 100000-2000000 it
Between;
2) the product A for taking step 1) to obtain in the baking oven under the conditions of being placed in 105-110 DEG C, dries 1-2h, obtains of 3-6mm
Granular organic quick lime composite drying agent.
2. a kind of preparation method with polyethylene glycol and organic quick lime composite drying agent, it is characterised in that the preparation method uses
Following steps:
1) mass fraction is pressed, takes 100 parts of lump limes, 100 parts of lump limes are crushed by 9 parts of ethylene glycol, ground
170 meshes are placed in vacuum planetary ball mill tank, and vacuum planetary ball mill tank is vacuumized, nitrogen is filled with, and 9 parts of ethylene glycol are added,
In vacuum planetary ball mill tank under the conditions of 45 DEG C, with 1500r/min grinding rate, then griding reaction 1.3h is at the uniform velocity reduced and is ground
Rate is ground, until stopping grinding completely, the quiet reaction 0.8h of vacuum is kept, obtains product A;Organic quick lime surface aggregate has
Polyethylene glycol, the relative molecular weight of the polyethylene glycol are 1050000;
2) the product A for taking step 1) to obtain in the baking oven under the conditions of being placed in 107 DEG C, dries 1.5h, obtains the graininess of 4.5mm
Organic quick lime composite drying agent.
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CN106732386B true CN106732386B (en) | 2019-05-14 |
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CN108479728B (en) * | 2018-03-21 | 2021-06-22 | 浙江理工大学 | Composite drying agent based on quicklime waste residues and preparation method thereof |
CN110194605B (en) * | 2019-06-28 | 2020-03-24 | 山东高速齐鲁建设集团有限公司 | Method for preparing building gypsum by using phosphogypsum |
CN114130169A (en) * | 2021-12-10 | 2022-03-04 | 安徽前江超细粉末科技有限公司 | Method for improving safety of lime drying agent |
Citations (2)
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CN104910366A (en) * | 2015-05-19 | 2015-09-16 | 浙江理工大学 | Organic quicklime composite desiccant and preparation method therefor |
CN104923043A (en) * | 2015-05-19 | 2015-09-23 | 浙江理工大学 | Organic quicklime composite desiccant and preparation method thereof |
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CN104910366A (en) * | 2015-05-19 | 2015-09-16 | 浙江理工大学 | Organic quicklime composite desiccant and preparation method therefor |
CN104923043A (en) * | 2015-05-19 | 2015-09-23 | 浙江理工大学 | Organic quicklime composite desiccant and preparation method thereof |
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