CN104774660B - Naphthalene coal water slurry additive and preparation method thereof - Google Patents
Naphthalene coal water slurry additive and preparation method thereof Download PDFInfo
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- CN104774660B CN104774660B CN201510124178.1A CN201510124178A CN104774660B CN 104774660 B CN104774660 B CN 104774660B CN 201510124178 A CN201510124178 A CN 201510124178A CN 104774660 B CN104774660 B CN 104774660B
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Abstract
The invention discloses a naphthalene coal water slurry additive and a preparation method thereof. In order to fully utilize the cracking byproducts namely C9/C10 fractions, the invention discloses a novel multifunctional naphthalene coal water slurry additive prepared from the C9/C10 naphthalene-enriched fractions of ethylene cracking, and the additive is prepared through the following steps: sulfonating and hydrolyzing the C9/C10 naphthalene-enriched fractions, and then mixing the reaction products with aniline polyether condensate and formaldehyde to carry out polycondensation and neutralization reactions. The additive integrates the dispersibility and stability, and has the advantages of few mixing amount, high pulping concentration, strong adaptability to coal species, and high stability. The raw materials are sufficient, the product performance is good, the problem that the comprehensive utilization of C9/C10 fractions is difficult is solved, and thus the additive and preparation method have a wide market prospect.
Description
Technical field
The present invention relates to a kind of slurries additive agent, it is specifically a kind of Multifunction naphthalene system slurries additive agent.
Background technology
With the development of China's oil chemical industry, particularly the gradually stepping up of ethylene production capacity, by-product cracks c9, c10
Yield be also continuously increased.For a long time, except being used on a small quantity producing Petropols and solvent naphtha, major part is made fuel and is used,
It is not utilized effectively, therefore, how to better profit from this part resource exploitation downstream product, be an up Ethylene Industry and deeply add
Work ability, the key promoting product restructuring, lifting whole petrochemical industry competitiveness and overall efficiency.
China is a country for the few oil of a richness coal, and coal resources account for more than 65% in China's energy-consuming, but traditional making
Have the shortcomings that transport difficult, combustion heating rate be not high, lime-ash is many, pollution is big with method.Water-coal-slurry is by 70% about coal
The environmental clean fuel of coal base flow body that charcoal, 30% about water and a small amount of additive are made through certain processing technique, it both kept
Coal original characteristic, has the mobility the same with oil and stability again, can store, pump, being atomized and fire with stable
Burn, have the multiple efficacies such as generation oil, energy-saving and environmental protection, obtain in fields such as replacing oil combustion generating, heat supply, chemical industry and widely should
With.
Coal is lyophobic dust, is difficult as the moistening of water institute；Coal grain in coal slurry is very thin, has the larger specific surface of ratio,
Easily spontaneous coalescence, will improve these performances it is necessary to add a small amount of chemical addition agent.Slurries additive agent can by its function
It is divided into dispersant and stabilizer, dispersant separates subtype and nonionic two big class again: ion-type has poly naphthalene sulfonate, lignin
The series such as sulfonate, humic acid；Nonionic has the series such as polyoxyethylene.Coal water mixture stabilizing agent great majority are that organic polymer gathers
Compound, such as guar glue, carboxymethyl cellulose, polyacrylamide, polyvinyl alcohol etc..Wherein, poly naphthalene sulfonate series is current city
The most widely used slurries additive agent on field.Although naphthalene system additive dispersion effect is relatively good, be obtained coal slurry steady
Qualitative difference, typically need to carry out compounding use with other additives.
The raw material of generally synthesis poly naphthalene sulfonate coal water slurry dispersing agent is refined naphthalene or crude naphthalene.For reduces cost, this
Bright cracking of ethylene c9/c10 richness naphthalene fraction (50+% containing naphthalene and its derivative) replaces crude naphthalene, and passes through graft modification, exploitation
One class cost performance is high, the Multifunction slurries additive agent of wide adaptability.This preparation technology low in raw material price, supply are filled
Foot, product integrate dispersibility and stability, and slurrying concentration is high, viscosity is low, good stability, and the adaptability to coal
By force.The present invention is also that cracking of ethylene c9, c10 develop downstream product and provide a kind of new feasible method it is achieved that second simultaneously
The comprehensive utilization of alkene pyrolysis product, improves economic benefit.
Content of the invention
For achieving the above object, the present invention provides a kind of slurries additive agent, and described additive is represented by following formula:
Wherein k > 0, l > 0, m > 0, n > 0, and k+l+m+n=50～250；R=h or me；M=na or k.
Above-mentioned formula only represents a kind of schematic structure, due to being polynary polycondensation, LOMAR PWA EINECS 246-676-2, aniline and its polyethers condensation
Thing is possibly random, alternately or block polycondensation；On main chain, the amino of aniline is probably all polyether grafting point, therefore finally produces
Thing possibly has the comb-shaped polymer of highly branched chain.
The c9/c10 richness naphthalene fraction that the present invention adopts generally contains the naphthalene and its derivative of 50+%, additionally, also containing a certain amount of
Indenes, styrenic aromatic, these compounds are also polymerisable monomer, and can by sulfonation access hydrophilic group, thus also having
There is certain dispersion effect.Remaining monomer is mainly the heavy aromatics of some saturations, plays solvent dilution effect in the reaction, after
Processing stage by vacuum distillation, these unreacting substances can be distilled, as industrial solvent sell.
The slurries additive agent of the present invention is to prepare through the following step:
A) c9/c10 richness naphthalene fraction adds sulfonating agent sulfonation, and sulfonation temperature is 160～165 DEG C, and sulfonation time is little for 2～4
When, then lower the temperature, hydrolyze to obtain LOMAR PWA EINECS 246-676-2 liquid；
B) polyethers, paratoluensulfonyl chloride, pyridine and aromatic solvent are put stirring at normal temperature 2～6 hours in another reaction vessel,
Add 110 DEG C of amine solutions of aniline 3～5 hours, then add it in step a) LOMAR PWA EINECS 246-676-2 liquid, wherein polyethers: tolysulfonyl
Chlorine: the mol ratio of pyridine is 1:1:1, c9/c10 richness naphthalene fraction, the mass ratio of aniline and polyethers be 1:0.05～0.1:0.1～
0.2；
C) acid adjustment degree Deca 38% formaldehyde condensation polymer at 30%, 90 DEG C, wherein c9/c10 richness naphthalene fraction and 38% formaldehyde
Mass ratio is 1:0.5～0.7；
D) it is neutralized to ph=7～9 with alkali, cooling, cross the crystal filtering precipitation, in vacuum 0.09～0.1mpa, temperature
Under the conditions of 60～200 DEG C, vacuum distillation eliminating water and unreacted material, are finally spray-dried, and obtain described water-coal-slurry and add
Agent, the heavy aromatics that vacuum distillation obtains can recycle, and uses as the solvent in step b).
Further, when the c9/c10 richness naphthalene fraction described in step a) refers to cracking of ethylene c9 and/or c10 air-distillation
Cut 215～245 DEG C of fractions obtaining, wherein contain the naphthalene and its derivative of 50+%.
Further, the sulfonating agent described in step a) is 98% concentrated sulphuric acid, the matter of c9/c10 richness naphthalene fraction and concentrated sulphuric acid
Amount ratio is 1:0.8～1.
Further, step a) sulfonation time preferably 3 hours.
Further, step a) hydrolysis temperature is 110 DEG C, and hydrolysis time is 1 hour.
Further, step b) polyethers is Polyethylene Glycol, and molecular weight is 1000～2000.
Further, the mass ratio of step c) c9/c10 richness naphthalene fraction and 38% formaldehyde is preferably 1:0.6.
Further, step c) condensation temperature is 110 DEG C, and the polycondensation time is 2～4 hours.
The slurries additive agent of present invention preparation is anionic dispersing agent poly naphthalene sulfonate and nonionic polyoxyethylene
The coalition of ether, has given full play to the good advantage of poly naphthalene sulfonate dispersive property, and it is stable to combine polyethenoxy ether class series
The good feature of property.Ether-oxygen bond, amino isopolarity group is there is, by these groups on polyoxyethylene ether chain and aniline in molecule
Hydrogen bond action, polymer is built bridge between coal grain, crisscross, and Special composition network structure, so as to improve slurry
Stability.When additive plus dosage are 0.5%, can be obtained slurry viscosity≤1200mpa s under room temperature, at concentrations up to 65～
70% water-coal-slurry, slurry places two weeks no soft precipitation, two months no hard-caked sediment, with naphthalenesulfonate condensation compound and polyoxyethylene ether
It is simply mixed and is greatly increased using comparing effect, have the advantages that good dispersion, stable phase are long, in addition low in raw material price, confession
Should be sufficient, in water-coal-slurry field, there is good application prospect.
Specific embodiments
The present invention is described in further detail by following examples, but the technology contents described in the present embodiment are illustrative, and
It is not determinate, should not limit to protection scope of the present invention according to this.
Embodiment 1
C9/c10 100 grams of naphthalene fraction of richness is placed in 500 milliliters of four-hole boiling flasks, is warming up to 155 DEG C, 80 gram 98% of Deca
Concentrated sulphuric acid, at 160～165 DEG C, constant temperature stirs 3 hours, is cooled to 110 DEG C, adds 40 milliliters of water, and constant temperature stirs 1 hour to obtain naphthalene sulphur
Acid solution.10 grams of Polyethylene Glycol (molecular weight 1000), 1.9 grams of paratoluensulfonyl chlorides and 15 milliliters of heavy aromatics are put into another burning simultaneously
In bottle, instill 0.8 gram of pyridine, stirring at normal temperature 6 hours, add 5 grams of aniline, stir 4 hours at 110 DEG C.This reactant liquor is added
Enter in above-mentioned LOMAR PWA EINECS 246-676-2 liquid, with the formalin of 98% concentrated sulphuric acid acid adjustment degree, 50 gram 38% of Deca at 30%, 90 DEG C, then heat up
To 110 DEG C, constant temperature stirs 3 hours, is cooled to room temperature, adjusts ph=9 with saturation sodium hydroxide solution, vacuum 0.09～
0.1mpa, under the conditions of temperature is 60～200 DEG C, vacuum distillation removes water and unreacted material, is finally spray-dried, obtains institute
142 grams of the slurries additive agent stated.
Embodiment 2
C9/c10 100 grams of naphthalene fraction of richness is placed in 500 milliliters of four-hole boiling flasks, is warming up to 155 DEG C, 90 gram 98% of Deca
Concentrated sulphuric acid, at 160～165 DEG C, constant temperature stirs 2 hours, is cooled to 110 DEG C, adds 40 milliliters of water, and constant temperature stirs 1 hour to obtain naphthalene sulphur
Acid solution.20 grams of Polyethylene Glycol (molecular weight 1000), 3.8 grams of paratoluensulfonyl chlorides and 30 milliliters of heavy aromatics are put into another burning simultaneously
In bottle, instill 1.6 grams of pyridines, stir 2 hours under room temperature, add 5 grams of aniline, react 4 hours at 110 DEG C.This is reacted
Liquid adds in above-mentioned LOMAR PWA EINECS 246-676-2 liquid, with the formalin of 98% concentrated sulphuric acid acid adjustment degree, 70 gram 38% of Deca at 30%, 90 DEG C, then
Be warming up to 110 DEG C, constant temperature stirs 2 hours, is cooled to room temperature, adjust ph=9 with saturation sodium hydroxide solution, vacuum 0.09～
0.1mpa, under the conditions of temperature is 60～200 DEG C, vacuum distillation removes water and unreacted material, is finally spray-dried, obtains institute
157 grams of the slurries additive agent stated.
Embodiment 3
C9/c10 100 grams of naphthalene fraction of richness is placed in 500 milliliters of four-hole boiling flasks, is warming up to 155 DEG C, 100 gram 98% of Deca
Concentrated sulphuric acid, at 160～165 DEG C constant temperature stir 4 hours, be cooled to 110 DEG C, add 40 milliliters of water, constant temperature stir 1 hour naphthalene
Azochlorosulfonate acid liquid.Simultaneously will be another to 10 grams of Polyethylene Glycol (molecular weight 1000), 1.9 grams of paratoluensulfonyl chlorides and 15 milliliters of heavy aromatics inputs
In flask, instill 0.8 gram of pyridine, stirring at normal temperature 4 hours, add 10 grams of aniline, react 4 hours at 110 DEG C.This is reacted
Liquid adds in above-mentioned LOMAR PWA EINECS 246-676-2 liquid, with the formalin of 98% concentrated sulphuric acid acid adjustment degree, 60 gram 38% of Deca at 30%, 90 DEG C, then
Be warming up to 110 DEG C, constant temperature stirs 3 hours, is cooled to room temperature, adjust ph=9 with saturation potassium hydroxide solution, vacuum 0.09～
0.1mpa, under the conditions of temperature is 60～200 DEG C, vacuum distillation removes water and unreacted material, is finally spray-dried, obtains institute
155 grams of the slurries additive agent stated.
Embodiment 4
C9/c10 100 grams of naphthalene fraction of richness is placed in 500 milliliters of four-hole boiling flasks, is warming up to 155 DEG C, 100 gram 98% of Deca
Concentrated sulphuric acid, at 160～165 DEG C constant temperature stir 3 hours, be cooled to 110 DEG C, add 40 milliliters of water, constant temperature stir 1 hour naphthalene
Azochlorosulfonate acid liquid.Simultaneously will be another to 20 grams of Polyethylene Glycol (molecular weight 1000), 3.8 grams of paratoluensulfonyl chlorides and 30 milliliters of heavy aromatics inputs
In flask, instill 1.6 grams of pyridines, stirring at normal temperature 4 hours, add 10 grams of aniline, react 3 hours at 110 DEG C.This reactant liquor is added
Enter in above-mentioned LOMAR PWA EINECS 246-676-2 liquid, with the formalin of 98% concentrated sulphuric acid acid adjustment degree, 60 gram 38% of Deca at 30%, 90 DEG C, then heat up
To 110 DEG C, constant temperature stirs 3 hours, is cooled to room temperature, adjusts ph=7 with saturation sodium hydroxide solution, vacuum 0.09～
0.1mpa, under the conditions of temperature is 60～200 DEG C, vacuum distillation removes water and unreacted material, is finally spray-dried, obtains institute
178 grams of the slurries additive agent stated.
Embodiment 5
C9/c10 100 grams of naphthalene fraction of richness is placed in 500 milliliters of four-hole boiling flasks, is warming up to 155 DEG C, 100 gram 98% of Deca
Concentrated sulphuric acid, at 160～165 DEG C constant temperature stir 3 hours, be cooled to 110 DEG C, add 40 milliliters of water, constant temperature stir 1 hour naphthalene
Azochlorosulfonate acid liquid.10 grams of Polyethylene Glycol (molecular weight 2000), 0.95 gram of paratoluensulfonyl chloride and 15 milliliters of heavy aromatics are put into separately simultaneously
In one flask, instill 0.4 gram of pyridine, stirring at normal temperature 4 hours, add 10 grams of aniline, react 5 hours at 110 DEG C.By this reactant liquor
Add in above-mentioned LOMAR PWA EINECS 246-676-2 liquid, with the formalin of 98% concentrated sulphuric acid acid adjustment degree, 60 gram 38% of Deca at 30%, 90 DEG C, then rise
To 110 DEG C, constant temperature stirs 4 hours temperature, is cooled to room temperature, adjusts ph=9 with saturation sodium hydroxide solution, vacuum 0.09～
0.1mpa, under the conditions of temperature is 60～200 DEG C, vacuum distillation removes water and unreacted material, is finally spray-dried, obtains institute
153 grams of the slurries additive agent stated.
Dispersive property is tested
Below, with existing commercially available naphthalene sulfonate coal water slurry dispersing agent taking the slurries additive agent being obtained in example 1～5 as a example
Carry out performance comparison.This experiment coal dust ball mill grinds, until sieve percent of pass is 80% (200 mesh)；Water-coal-slurry is all by matter
Amount is than coal dust: water: additive=65:34.5:0.5 is obtained under agitating device strong stirring, and test result is shown in Table 1:
Table 1
By upper table, the stability of commercially available naphthalenesulfonatedispersant dispersant is slightly worse, arose that in 14 days bleed and
Soft precipitation, the slurries additive agent of the present invention is added in coal slurry, prepared water-coal-slurry substantially anhydrous precipitation, part in 14 days
There is a small amount of soft precipitation；In 60 days, commercially available naphthalenesulfonatedispersant dispersant hard-caked sediment, and is made up of the additive of the present invention
Water-coal-slurry no hard-caked sediment, only partly have a small amount of bleed.By contrast, not only raw material becomes the slurries additive agent of the present invention
This is low, and the more existing naphthalenesulfonatedispersant dispersant of performance there has also been certain raising, and stability is also more preferable.
Claims (9)
1. a kind of naphthalene system slurries additive agent is it is characterised in that have following general structure:
Wherein k > 0, l > 0, m > 0, n > 0, and k+l+m+n=50～250；R=h or me；M=na or k.
2. a kind of method preparing naphthalene system as claimed in claim 1 slurries additive agent is it is characterised in that include following walking
Rapid:
A) c9/c10 richness naphthalene fraction adds sulfonating agent sulfonation, and sulfonation temperature is 160～165 DEG C, then lowers the temperature, hydrolyzes to obtain LOMAR PWA EINECS 246-676-2
Liquid；
B) polyethers, paratoluensulfonyl chloride, pyridine and aromatic solvent are put another reaction vessel, stirring at normal temperature, add aniline, heating
To 110 DEG C of amine solutions, then add it in step a) LOMAR PWA EINECS 246-676-2 liquid, wherein polyethers: paratoluensulfonyl chloride: the mol ratio of pyridine is
The mass ratio of 1:1:1, c9/c10 richness naphthalene fraction, aniline and polyethers is 1:0.05～0.1:0.1～0.2；
C) acid adjustment degree Deca 38% formaldehyde condensation polymer at 30%, 90 DEG C, the quality of wherein c9/c10 richness naphthalene fraction and 38% formaldehyde
Than for 1:0.5～0.7；
D) add alkali and be neutralized to ph=7～9, cooling, cross crystal, vacuum distillation eliminating water and the unreacted material filtering precipitation, do
Dry, obtain described slurries additive agent.
3. naphthalene system according to claim 2 slurries additive agent preparation method is it is characterised in that described c9/c10 richness naphthalene
Fraction refers to cut 215～245 DEG C of fractions obtaining when cracking of ethylene c9 and/or c10 air-distillation, wherein contains the naphthalene of 50+%
And its derivant.
4. naphthalene system according to claim 2 slurries additive agent preparation method is it is characterised in that sulfonation described in step a)
Agent is 98% concentrated sulphuric acid, and c9/c10 richness naphthalene fraction is 1:0.8～1 with the mass ratio of concentrated sulphuric acid, and sulfonation time is 2～4 hours.
5. naphthalene system according to claim 2 slurries additive agent preparation method is it is characterised in that step a) hydrolysis temperature is
110 DEG C, hydrolysis time is 1 hour.
6. naphthalene system according to claim 2 slurries additive agent preparation method is it is characterised in that step b) polyethers is poly- second
Glycol, molecular weight is 1000～2000.
7. naphthalene system according to claim 2 slurries additive agent preparation method is it is characterised in that step c) condensation temperature is
110 DEG C, the polycondensation time is 2～4 hours.
8. naphthalene system according to claim 2 slurries additive agent preparation method is it is characterised in that step d) vacuum distillation bar
Part is vacuum 0.09～0.1mpa, 60～200 DEG C of temperature.
9. utilization in water-coal-slurry preparation for the naphthalene system slurries additive agent according to claim 1～8 any claim.
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| CN104875258B (en) * | 2015-05-20 | 2017-05-31 | 北京光和空气科技发展有限公司 | Except formaldehyde artificial board |
| CN105567356B (en) * | 2016-01-15 | 2017-07-28 | 欣格瑞（山东）环境科技有限公司 | A kind of synthesis technique of slurries additive agent and application |
| CN111463486B (en) * | 2018-12-20 | 2023-08-01 | 江西普瑞森新能源科技有限公司 | Lithium ion battery electrolyte |
| CN111534345B (en) * | 2020-05-29 | 2022-04-19 | 新沂市锡沂高新材料产业技术研究院有限公司 | Preparation method of high-concentration mixed coal water slurry additive |
| CN113969197B (en) * | 2020-07-22 | 2023-04-14 | 博特新材料泰州有限公司 | Multi-copolymer dispersant based on humic acid, preparation method thereof and application thereof in coal water slurry |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5518510A (en) * | 1991-05-13 | 1996-05-21 | The Lubrizol Corporation | Low-sulfur diesel fuels containing organo-metallic complexes |
| CN101564663A (en) * | 2009-05-18 | 2009-10-28 | 陕西科技大学 | Amphoteric water-coal-slurry dispersing agent and preparation method thereof |
| CN102050534A (en) * | 2009-10-29 | 2011-05-11 | 中国石油化工股份有限公司 | Method for treating waste water from rubber antioxidant tmq (RD) device |
-
2015
- 2015-03-20 CN CN201510124178.1A patent/CN104774660B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5518510A (en) * | 1991-05-13 | 1996-05-21 | The Lubrizol Corporation | Low-sulfur diesel fuels containing organo-metallic complexes |
| CN101564663A (en) * | 2009-05-18 | 2009-10-28 | 陕西科技大学 | Amphoteric water-coal-slurry dispersing agent and preparation method thereof |
| CN102050534A (en) * | 2009-10-29 | 2011-05-11 | 中国石油化工股份有限公司 | Method for treating waste water from rubber antioxidant tmq (RD) device |
Non-Patent Citations (1)
| Title |
|---|
| 《改性萘系水煤浆添加剂的研究及应用》;杨会民，曾梅;《煤炭加工与综合利用》;20131231(第1期);第50-53页 * |
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