CN108864382B - A kind of dibutyl phthalate and preparation method for coal mine atomizing de-dusting - Google Patents
A kind of dibutyl phthalate and preparation method for coal mine atomizing de-dusting Download PDFInfo
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- CN108864382B CN108864382B CN201810705644.9A CN201810705644A CN108864382B CN 108864382 B CN108864382 B CN 108864382B CN 201810705644 A CN201810705644 A CN 201810705644A CN 108864382 B CN108864382 B CN 108864382B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F289/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
Abstract
The invention discloses a kind of dibutyl phthalates and preparation method for coal mine atomizing de-dusting, comprising: which the crosslinking agent of the 2- acrylamide-2-methyl propane sulfonic of the vinyl acetate of the lignosulfonates of 3%-5%, 3%-5%, 3%-5%, the initiator of 0.05%-0.1%, 0.02%-0.04%, the antifreezing agent of 0.3%-0.6% and the corrosion inhibiter of 0.2%-0.4%, surplus are water.Using sodium lignin sulfonate as matrix, polymerization reaction is carried out with vinyl acetate, 2- acrylamide-2-methyl propane sulfonic, the polymer of generation had not only maintained the degradable performance of sodium lignin sulfonate, but also the function that droplet can be made to have wetting, bonding.This is used for the spraying dibutyl phthalate of coal mine and surfactant compound is applied in spraying system, the spraying wetability to coal dust can be further increased, droplet is set effectively to be soaked, be wrapped up to dust, substantially increase dust suppression efficiency, reduce dust recycling, and the case where causing secondary pollution after depositing dust appearance can be avoided with natural decomposition.
Description
Technical field
The present invention relates to mines dust-proof, dust suppression field more particularly to a kind of dibutyl phthalate and system for coal mine atomizing de-dusting
Preparation Method.
Background technique
With the progress of science and technology, the mechanization of coal mining, the degree of automation are higher and higher, produce in this process
Raw dust is also more and more.Mine Dust be seriously endanger downhole production safety and personnel's health major casualty source it
One, the harm of coal dust mainly has following several respects: it even explodes first is that spontaneous combustion can occur under certain condition, Yi Yinfa gas
Explosion accident；Second is that seriously threatening the physical and mental health of Coal Miners with the increase of respirable dust concentration, it being made to suffer from dirt
The probability of tuberculosis and other pulmonary diseases greatly increases；Third is that the dust of underground coal mine can aggravate the mill of underground equipment components
Damage causes accuracy of instrument decline or failure；In addition a large amount of dust can reduce the visibility of underground, Yi Fashengyin maloperation and lead
Cause the accident of casualties.According to actual measurement, in the case where not taking any measure, the dust concentration of fully mechanized workface is reachable
3000mg/m3More than, the dust concentration of fully-mechanized mining working is more up to 6000mg/m3More than.
Underground coal mine face is in order to prevent and treat the method that dust generally uses atomizing de-dusting, however since coal body itself is hydrophobic
Characteristic, water is poor to the wetability of coal dust, it is difficult to reach ideal effect.For coal dust itself difficult the characteristics of soaking, at present
Widely applied technology is to add ready-made technical grade surfactant or Surfactant in water to be compounded.But it is this
The drawbacks such as that there is dust-laying effects is poor, at high cost for method, toxicity is high, and conventional surfactant is not degradable, large area is answered
With also will cause secondary environmental pollution.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of increasing profits for coal mine atomizing de-dusting
Agent and preparation method improve dust suppression efficiency to reduce the diffusion of dust.
In order to solve the above technical problems, the present invention program includes:
A kind of dibutyl phthalate for coal mine atomizing de-dusting, includes following components by mass percentage:
The lignosulfonates of 3%-5%, the vinyl acetate of 3%-5%, 3%-5% 2- acrylamide -2- methyl
Propane sulfonic acid, the initiator of 0.05%-0.1%, the crosslinking agent of 0.02%-0.04%, 0.3%-0.6% antifreezing agent and 0.2%-
0.4% corrosion inhibiter, surplus are water.
The dibutyl phthalate, wherein above-mentioned lignosulfonates are one of sodium lignin sulfonate, calcium lignosulfonate
Or mixtures thereof；Above-mentioned initiator is one of sodium peroxide, ammonium persulfate；Crosslinking agent is N-N methylene-bisacrylamide.
The dibutyl phthalate, wherein above-mentioned antifreezing agent is calcium chloride；Corrosion inhibiter is phosphorus carboxylic acid.
A kind of preparation method of above-mentioned dibutyl phthalate comprising following steps:
After dissolving lignosulfonates in water, vinyl acetate is added in step 1, and the temperature of constant temperature stirring instrument is set
It is stirred 30 minutes after being set to 60 DEG C, initiator is added into above-mentioned solution again after all dissolutions are sufficiently mixed, it is anti-at 60 DEG C
It answers 2 hours, obtains the first solution；
Step 2, then to be added into the first solution 2- acrylamide-2-methyl propane sulfonic and crosslinking agent the reaction was continued 1 small
When, obtain final product；
Antifreezing agent and corrosion inhibiter are added into final product, stirs, and adjust pH value, can obtain for step 3
To above-mentioned dibutyl phthalate.
The preparation method, wherein the above-mentioned dibutyl phthalate of preparation carries out being thoroughly mixed spare, dibutyl phthalate again with water
It is thoroughly mixed with water according to the ratio that mass ratio is 1:50.
The preparation method, wherein the pH value in step 3 is 7-8.
The preparation method, wherein above-mentioned lignosulfonates are sodium lignin sulfonate, one in calcium lignosulfonate
Or mixtures thereof kind；Above-mentioned initiator is one of sodium peroxide, ammonium persulfate；Crosslinking agent is N-N methylene bisacrylamide acyl
Amine.
The preparation method, wherein above-mentioned antifreezing agent is calcium chloride；Corrosion inhibiter is phosphorus carboxylic acid.
A kind of dibutyl phthalate and preparation method for coal mine atomizing de-dusting provided by the invention, utilizes the Strong oxdiative of persulfuric acid
Property capture-OH in lignin hydrogen generate primary group of free radicals, primary group of free radicals attack vinyl acetate, 2- acrylamide -2- first
The free radical of generation is carried out polymerization reaction, by 2- by the C=C of base propane sulfonic acid and N-N methylene-bisacrylamide in aqueous solution
Acrylamide-2-methyl propane sulfonic and vinyl acetate are grafted on sodium lignin sulfonate.The original sulfonic acid of sodium lignin sulfonate
Group has preferable absorption property to coal dust, and amide group makes the drop sprayed have certain adhesiveness, ester group to coal dust
Enhance the overall structure generated to the wetting ability of coal dust.This dibutyl phthalate and surfactant compound are applied to spraying system
In, the surface tension of water is not only reduced, and wetting of the droplet to dust, adhesiving effect can be increased, keeps droplet effective
Dust is soaked, adhered to, is wrapped up, dust suppression efficiency is substantially increased, reduces dust recycling.In addition this dibutyl phthalate is with wooden
Plain sodium sulfonate is matrix, can natural decomposition, avoid the case where causing secondary pollution after depositing dust appearance.
Detailed description of the invention
Fig. 1 is the flow diagram that dibutyl phthalate is prepared in the present invention.
Specific embodiment
The present invention provides a kind of dibutyl phthalate and preparation method for coal mine atomizing de-dusting, for make the purpose of the present invention,
Technical solution and effect are clearer, clear, and the present invention is described in more detail below.It should be appreciated that described herein
Specific embodiment is only used to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of dibutyl phthalates for coal mine atomizing de-dusting, by mass percentage include: 3%-5%'s
Lignosulfonates, the vinyl acetate of 3%-5%, 3%-5% 2- acrylamide-2-methyl propane sulfonic, 0.05%-
0.1% initiator, the crosslinking agent of 0.02%-0.04%, the antifreezing agent of 0.3%-0.6% and 0.2%-0.4% corrosion inhibiter,
Surplus is water.And above-mentioned lignosulfonates are or mixtures thereof one of sodium lignin sulfonate, calcium lignosulfonate；On
Stating initiator is one of sodium peroxide, ammonium persulfate；Crosslinking agent is N-N methylene-bisacrylamide.Above-mentioned antifreezing agent is
Calcium chloride；Corrosion inhibiter is phosphorus carboxylic acid.
The present invention also provides a kind of preparation method of above-mentioned dibutyl phthalate, as shown in Figure 1 comprising following steps:
After dissolving lignosulfonates in water, vinyl acetate is added in step 1, and the temperature of constant temperature stirring instrument is set
It is stirred 30 minutes after being set to 60 DEG C, initiator is added into above-mentioned solution again after all dissolutions are sufficiently mixed, it is anti-at 60 DEG C
It answers 2 hours, obtains the first solution；
Step 2, then to be added into the first solution 2- acrylamide-2-methyl propane sulfonic and crosslinking agent the reaction was continued 1 small
When, obtain final product；
Antifreezing agent and corrosion inhibiter are added into final product, stirs, and adjust pH value, can obtain for step 3
To above-mentioned dibutyl phthalate.
In order to which the present invention is further described, it is exemplified below more specifically embodiment and is illustrated.
Embodiment 1:
It weighs 2g sodium lignin sulfonate and 4ml vinyl acetate is dissolved in 200ml water, after sufficiently dissolving and stirring 30min,
0.5g ammonium persulfate is added into solution, constant temperature is stirred to react 2 hours at 60 DEG C.2g2- acrylamide-the 2- into solution again
Methyl propane sulfonic acid and 0.5gN-N methylene-bisacrylamide are kept for 60 DEG C and continue to be stirred to react 2 hours.After the reaction was completed, Xiang Rong
0.3g calcium chloride and 0.2ml phosphorus carboxylic acid are added in liquid, adjusts pH, 2ml and 0.2g dodecyldimethylammonium hydroxide inner salt is taken to add simultaneously
Enter in 1L water and be uniformly mixed, tests correlated performance.
Embodiment 2:
It weighs 2g sodium lignin sulfonate and 4ml vinyl acetate is dissolved in 200ml water, after sufficiently dissolving and stirring 30min,
0.5g ammonium persulfate is added into solution, constant temperature is stirred to react 2 hours at 60 DEG C.4g2- acrylamide-the 2- into solution again
Methyl propane sulfonic acid and 0.5gN-N methylene-bisacrylamide are kept for 60 DEG C and continue to be stirred to react 2 hours.After the reaction was completed, Xiang Rong
0.3g calcium chloride and 0.2ml phosphorus carboxylic acid are added in liquid, adjusts PH, 2ml and 0.2g dodecyldimethylammonium hydroxide inner salt is taken to add simultaneously
Enter in 1L water and be uniformly mixed, tests correlated performance.
Embodiment 3:
It weighs 2g sodium lignin sulfonate and 4ml vinyl acetate is dissolved in 200ml water, after sufficiently dissolving and stirring 30min,
0.5g ammonium persulfate is added into solution, constant temperature is stirred to react 2 hours at 60 DEG C.6g2- acrylamide is added into solution again
- 2- methyl propane sulfonic acid and 0.5gN-N methylene-bisacrylamide are kept for 60 DEG C and continue to be stirred to react 2 hours.Reaction
After the completion, 0.3g calcium chloride and 0.2ml phosphorus carboxylic acid are added into solution, adjusts PH, takes 2ml and 0.2g dodecyl dimethyl sweet tea
Dish alkali is added in 1L water simultaneously and is uniformly mixed, and tests correlated performance.
Table 1
As can be seen from the table, 42~55% or so be can only achieve only with clear water atomizing de-dusting efficiency, highest depositing dust
Rate is 56.2%, and effect is poor, and the spraying measure efficiency of dust collection for adding dibutyl phthalate can reach 90% or more, up to
93.5%, so that average total dust concentration of working face and averagely dust concentration is exhaled to be down to 51.4mg/m3And 18.8mg/m3, meet drop
The needs of dirt.This is because the original sulfonic acid group of sodium lignin sulfonate has preferable absorption property to coal dust, amide group makes
Obtaining dibutyl phthalate has certain adhesiveness to coal dust, and ester group enhances the overall structure generated to the wetting ability of coal dust.By this
The dibutyl phthalate and surfactant compound spraying for coal mine is applied in spraying system, substantially increases dust suppression efficiency, is reduced
Dust recycling.And this dust suppressant is mainly made of natural products, and it is harmless nontoxic, it can voluntarily degrade.
Certainly, described above is only that presently preferred embodiments of the present invention is answered the present invention is not limited to enumerate above-described embodiment
When explanation, anyone skilled in the art is all equivalent substitutes for being made, bright under the introduction of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be by protection of the invention.
Claims (4)
1. a kind of dibutyl phthalate for coal mine atomizing de-dusting, is characterized in that, by mass percentage includes following components:
The lignosulfonates of 3%-5%, the vinyl acetate of 3%-5%, 3%-5% 2- acrylamide -2- methyl-prop sulphur
The antifreezing agent and 0.2%- of acid, the initiator of 0.05%-0.1%, the crosslinking agent of 0.02%-0.04%, 0.3%-0.6%
0.4% corrosion inhibiter, surplus are water；
Above-mentioned lignosulfonates are or mixtures thereof one of sodium lignin sulfonate, calcium lignosulfonate；Above-mentioned initiator
For one of sodium peroxide, ammonium persulfate；Crosslinking agent is N-N methylene-bisacrylamide；
Above-mentioned antifreezing agent is calcium chloride；Corrosion inhibiter is phosphorus carboxylic acid.
2. a kind of preparation method of dibutyl phthalate as described in claim 1 comprising following steps:
After dissolving lignosulfonates in water, vinyl acetate is added in step 1, and the temperature setting by constant temperature stirring instrument is
It is stirred 30 minutes after 60 DEG C, initiator is added into above-mentioned solution again after all dissolutions are sufficiently mixed, it is small that 2 are reacted at 60 DEG C
When, obtain the first solution；
Step 2, then into the first solution, the reaction was continued 1 hour for addition 2- acrylamide-2-methyl propane sulfonic and crosslinking agent, obtains
To final product；
Antifreezing agent and corrosion inhibiter are added into final product, stirs, and adjust pH value, can be obtained for step 3
State dibutyl phthalate.
3. preparation method according to claim 2, which is characterized in that the above-mentioned dibutyl phthalate of preparation is sufficiently stirred with water again
Mixing for standby use, dibutyl phthalate and water is mixed to be thoroughly mixed according to the ratio that mass ratio is 1:50.
4. preparation method according to claim 2, which is characterized in that the pH value in step 3 is 7-8.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810705644.9A CN108864382B (en) | 2018-07-02 | 2018-07-02 | A kind of dibutyl phthalate and preparation method for coal mine atomizing de-dusting |
| JP2020564935A JP7050364B2 (en) | 2018-07-02 | 2018-08-14 | Moisturizer and preparation method for reducing dust by spraying coal mine |
| PCT/CN2018/100451 WO2020006817A1 (en) | 2018-07-02 | 2018-08-14 | Moistening agent for coal mine spray and dust reduction and preparation method |
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| CN201810705644.9A CN108864382B (en) | 2018-07-02 | 2018-07-02 | A kind of dibutyl phthalate and preparation method for coal mine atomizing de-dusting |
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| CN108864382B true CN108864382B (en) | 2019-10-01 |
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| CN109813849B (en) * | 2019-02-14 | 2021-07-30 | 中国矿业大学 | Method for quantitatively evaluating performance of dust suppression foam |
| CN110105920B (en) * | 2019-06-04 | 2022-03-08 | 中国葛洲坝集团易普力股份有限公司 | Green high-efficiency mine pavement dust suppressant and preparation method thereof |
| CN112459825B (en) * | 2020-11-03 | 2022-11-18 | 山东科技大学 | Mine dust-suppression and explosion-suppression agent, preparation method and application |
| CN112174805B (en) * | 2020-11-10 | 2023-02-03 | 杭州电化集团有限公司 | Production method of sodium acetate capable of not crystallizing at low temperature |
| CN115851232B (en) * | 2022-11-17 | 2024-04-26 | 中煤科工集团沈阳研究院有限公司 | Environment-friendly high-wettability dust suppressant and preparation method thereof |
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- 2018-07-02 CN CN201810705644.9A patent/CN108864382B/en active Active
- 2018-08-14 WO PCT/CN2018/100451 patent/WO2020006817A1/en active Application Filing
- 2018-08-14 JP JP2020564935A patent/JP7050364B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101747866A (en) * | 2009-12-17 | 2010-06-23 | 中铁西北科学研究院有限公司 | Coal dust depressor and preparation method thereof |
| CN102433102A (en) * | 2011-09-28 | 2012-05-02 | 韩林华 | Adhesive dust suppressant for preventing coal dust from being produced in transportation of coal |
| CN105950116A (en) * | 2016-05-04 | 2016-09-21 | 山东科技大学 | Environmentally-friendly coal transporting and stockpiling dust inhibitor and preparation method thereof |
| CN106832153A (en) * | 2017-02-07 | 2017-06-13 | 山东科技大学 | The preparation method and Coal Mine Fire material of a kind of colloid fire proofing material |
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| WO2020006817A1 (en) | 2020-01-09 |
| JP7050364B2 (en) | 2022-04-08 |
| JP2021523971A (en) | 2021-09-09 |
| CN108864382A (en) | 2018-11-23 |
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