CN105695001A - Tar-type coal water slurry additive prepared from composite raw materials and production technology of tar-type coal water slurry additive - Google Patents
Tar-type coal water slurry additive prepared from composite raw materials and production technology of tar-type coal water slurry additive Download PDFInfo
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- CN105695001A CN105695001A CN201610088001.5A CN201610088001A CN105695001A CN 105695001 A CN105695001 A CN 105695001A CN 201610088001 A CN201610088001 A CN 201610088001A CN 105695001 A CN105695001 A CN 105695001A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
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- C10L1/10—Liquid carbonaceous fuels containing additives
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Abstract
The invention discloses a tar-type coal water slurry additive prepared from composite raw materials and a production technology of the tar-type coal water slurry additive.The tar-type coal water slurry additive is synthesized by mixing the main materials such as scrubbing oil, naphthalene oil, anthracene oil and papermaking wastewater in different mass ratios, subjecting a mixture to processes such as sulfonation and condensation, and adding a pore blocking agent carbonate into a synthesized product.The tar-type coal water slurry additive has the advantages that the tar-type coal water slurry additive has the characteristic of general dispersants, namely improvement in coal surface hydrophility; electrostatic repulsion among particles is enhanced, so that improvement in coal slurry fluidity is benefited; since strong stereo-hindrance effect is generated, slurry rheologic stability is achieved; the tar-type coal water slurry additive has specific cooperative synergism characteristic, and accordingly mutually complementary cooperative synergism is achieved; the tar-type coal water slurry additive is good for slurry forming ability of coal types different in coalification degree, is particularly applicable to low-rank coal, and is high in slurry forming concentration and excellent in coal slurry fluidity and stability under the condition that additive coal-based consumption is not more than 1.0%.
Description
Technical field
The present invention relates to slurries additive agent field, particularly relate to a kind of compound material and prepare tar oil type slurries additive agent and production technology。
Background technology
Water-coal-slurry is one of clean coal technology that last century, the eighties was risen。It is a kind of slurry that the coal, water and a small amount of chemical addition agent that are distributed by certain particle size are formulated。Have the water-coal-slurry product requirement of industrial application value have high concentration, low-viscosity, good mobility and stabilization time the feature such as length。In water-coal-slurry production process, water-coal-slurry performance is played vital effect by slurries additive agent。At present, slurries additive agent mainly has Lignins, naphthalene system, humic acid and non-ionic etc.。But these products are respectively arranged with advantage, also each defective, application aspect is restricted to some extent。Advantage such as lignosulfonates is abundant raw material, low price, and stability is better, but shortcoming to be slurrying viscosity relatively big, slurry mobility is bad；Naphthalene system dispersant is good, viscosity reduction effect strong, slurry good fluidity, but slurry stability is poor, it is easy to bleed produces hard-caked sediment；The amphipathic property having a major advantage in that molecule of non-ionic dispersing agent and relative molecular mass can easily be accommodated and control, and not by the impact of soluble substance in water quality and coal, does not need to add stabilizer, but expensive。
Owing to slurries additive agent molecular structure and ature of coal also exist matching, this matching affects the paste-forming properties of coal, rheological characteristic and slurry stability。Slurries additive agent universality is limited, and several additives can not be pervasive in all coals。Therefore, it is necessary to exploitation is suitable for the additive of Coal with Different Rank kind。Particularly low-order coal, owing to surface pore is flourishing, containing water suction groups such as more carboxyl, hydroxyls, slurry concentration is relatively low, less stable。Therefore, the additive of exploitation raising low-order coal paste-forming properties is even more important。
Summary of the invention
In order to develop the additive improving low-order coal paste-forming properties, the present invention is with washing oil, naphtalene oil, carbolineum, papermaking wastewater etc. for main synthesis material, in main process synthesis tar oil type slurries additive agents such as the mixing of different quality ratio, sulfonated, condensations, concrete technical scheme is as follows:
A kind of compound material prepares tar oil type slurries additive agent, it is characterized in that, this additive contains benzene sulfonate formaldehyde condensation products, diphenylsulfonates formaldehyde condensation products, anthracene sulfonic acid salt formaldehyde condensation products, naphthalenesulfonate formaldehyde condensation compound, lignosulfonates and hole-blocking agent carbonate, and sulfonic acid group is in the β position of ring-type；And adopt following methods to prepare:
(1) raw material is prepared: weigh washing oil, naphtalene oil, carbolineum, papermaking wastewater are raw material；
(2) sulfonating reaction: weigh sulfonating agent and join in the mixed system of washing oil, naphtalene oil and carbolineum and carry out sulfonating reaction；
(3) hydrolysis: the sulfonic acid group beyond β position obtained in hydrolysing step (2) reaction system, is subsequently adding papermaking wastewater；
(4) condensation reaction: weigh formaldehyde and join in the reaction system that step (3) obtains and carry out formaldehyde condensation reaction；
(5) reaction is neutralized: in the reaction system that step (4) obtains, add alkaline matter, neutralize wherein excessive acid；
(6) concentration, add hole-blocking agent carbonate, dry be prepared from。
A kind of compound material prepares the production technology of tar oil type slurries additive agent, it is characterised in that production technology is as follows:
(1) raw material is prepared: weigh washing oil, naphtalene oil, carbolineum, papermaking wastewater are raw material；
(2) sulfonating reaction: weigh sulfonating agent and join in the mixed system of washing oil, naphtalene oil and carbolineum and carry out sulfonating reaction；
(3) hydrolysis: the sulfonic acid group beyond β position obtained in hydrolysing step (2) reaction system, is subsequently adding papermaking wastewater；
(4) condensation reaction: weigh formaldehyde and join in the reaction system that step (3) obtains and carry out formaldehyde condensation reaction；
(5) reaction is neutralized: in the reaction system that step (4) obtains, add alkaline matter, neutralize wherein excessive acid；
(6) concentrate, add hole-blocking agent carbonate, dry and prepare tar oil type slurries additive agent。
Described washing oil, naphtalene oil, carbolineum, papermaking wastewater, hole-blocking agent carbonate, its mass ratio is: 15～25:30～40:20～30:10～25:10～25；Described hole-blocking agent carbonate is water soluble carbonate；Described papermaking wastewater is alkaline paper-making waste liquid, and it is mainly composed of lignin, cellulose, inorganic salt。
Initiation material and sulfonating agent mol ratio 1:1.0-2.2 in sulfonating reaction described in step (2), best 1:1.3-1.8, sulfonation temperature 110 DEG C-180 DEG C, initiation material is the mixture of washing oil, naphtalene oil, carbolineum and papermaking wastewater, and described sulfonating agent is one or both the mixture in concentrated sulphuric acid and oleum。
Hydrolysis described in step (3), reaction temperature is 120 DEG C。
Condensation reaction described in step (4), polycondensation initiation material and formaldehyde mole ratio 1:0.6-1.5, it is desirable to 1:0.7-1.3, condensation temp 90 DEG C-120 DEG C；Its degree of polymerization is 9～17。
Alkaline matter described in step (5) is one or more the mixture in sodium hydroxide, calcium hydroxide, sodium carbonate, potassium carbonate and potassium hydroxide, adjusts pH value to 7-9。
The described 0.15%-1.0% that tar oil type slurries additive agent consumption is coal-based consumption。
Described tar oil type slurries additive agent can be used alone, it is possible to composite with sodium lignin sulfonate or composite with naphthalene sulfonic acid-formaldehyde condensation product, improves performance。
Coal grain size distribution is required by described tar oil type slurries additive agent: the ratio that the 200 following coal dusts of order account for is 35%-50%。
This beneficial effect of the invention has:
Initiation material allotment ratio is wider, and wide material sources, cheap；Additive Production technique is particularly well-suited to regulate rate of charge, temperature, time, the sulfonic group of No. 2 positions of ring-type is removed by hydrolysis, the additive of synthesis is wider to the coal scope of application, and particularly with the addition of hole-blocking agent carbonate, to improving, low-order coal paste-forming properties effect is obvious；
Compared with other additive, coal subject range is relatively wide, requires wider to coal powder size grating, and product is nontoxic；
Tar oil type slurries additive agent solid content is 50%-70%, and mobility is better, and when coal-based consumption is less than 1.0%, slurry is at shear rate 20s-1Time viscosity of coal slurry less than 800mpa.s；
Hole-blocking agent carbonate and minerals in coal form the carbonate depositions such as calcium carbonate in pulping process, are colloidal precipitations of calcium carbonate due to what formed, can be adsorbed in coal hole, improve deposition efficiency and the stability of water-coal-slurry；
The coal-based consumption of this additive is 1.25 times of naphthalene system additive amount, and paste-forming properties effect is suitable with naphthalene system additive, and cost of material is the 65% of naphthalene system additive raw material price；
Papermaking wastewater is seriously polluted, and intractability is relatively big, and it preferably resolves its pollution to environment as the part producing raw material of slurries additive agent；Papermaking wastewater, as part producing raw material, is conducive to improving the molecular weight of product, and to improving, water-coal-slurry slurry stability effect is obvious。
Accompanying drawing illustrates:
The infrared spectrogram of Fig. 1 product 1；
The infrared spectrogram of Fig. 2 product 2。
Detailed description of the invention
Below in conjunction with detailed description of the invention, invention being further described in detail, be below only presently preferred embodiments of the present invention, the equalization made according to the present patent application the scope of the claims changes and modifies, and all should still fall within the scope that patent of the present invention contains。
The method of preparation water-coal-slurry: according to the addition of water coal slurry concentration set in advance and additive according to formula:
Wherein, mWaterFor the water yield added, mCoalFor the coal amount needed, mAdditiveFor additive amount, C is coal-water fluid concentration, MadFor moisture in coal。
Calculate solid additive, the water yield and pulping need to be added needed for coal amount, by coal dust, additive and the water mix homogeneously added, homogenate 5～10 minutes under the mixing speed of 500～1500 revs/min。
Embodiment 1
(1) synthesis tar oil type slurries additive agent: (1) 20:40:30:10 in mass ratio weighs washing oil, naphtalene oil, carbolineum, papermaking wastewater 30g, 60g, 45g, 15g, then the washing oil weighed, naphtalene oil, carbolineum are put in the four-hole boiling flask of 1L, according to washing oil, naphtalene oil, carbolineum, papermaking wastewater mean molecule quantity to calculate its total mole number be 1.5mol, weigh the concentrated sulphuric acid 2.3mol of 98% and put in constant pressure funnel。(2) oil bath pan temperature control is to 155 DEG C, adds the concentrated sulphuric acid of 98% with the speed of 4d/s, in 155 DEG C of constant temperature 4-5h under stirring, carries out sulfonating reaction。(3) after sulfonating reaction terminates, being cooled to 120 DEG C, add water 55g, is hydrolyzed 50min in 120 DEG C, adds load weighted papermaking wastewater。(4) the formaldehyde 1.1mol of 37% is dripped with the speed of 4d/s, at 115 DEG C of condensation reaction 4h。(5), after condensation reaction, add sodium carbonate and adjust pH value to 7。(6) filtrate is concentrated to 50%, adds the sodium carbonate of 15g, dry and prepare brown powder product 1。
Being found out by Fig. 1, the tar oil type slurries additive agent sulfonic group of embodiment 1 synthesis and methylene absorption peak strength are relatively big, illustrate that its sulfonation degree is higher, and molecular weight is relatively large, is applied to water-coal-slurry effect better。
(2) coal dust is prepared: From Shenmu Coal, place, north coal are crushed to certain particle size (≤3mm), then by the omnipotent disintegrating machine dry pulverization process of high speed。Control the broken time, the coal dust that directly broken prepared particle size distribution is suitable, the particle size distribution of coal dust:
Mu Shuo Shenmu County Bei Su
>=40 order 2.2%1.8%
40 order～80 order 13.5%10.6%
80 order～120 order 20.2%21.7%
120 order～200 order 14.7%17.3%
200 order～325 order 24.8%22.6%
≤ 325 order 24.6%26.0%
(3) water-coal-slurry is prepared: according to water coal slurry concentration set in advance (Shenmu County 62%, place 65%, north) and additive amount 0.15%, calculate pressed powder additive, coal amount needed for the water yield and pulping need to be added, by coal dust, additive with add water mix homogeneously, homogenate 5 minutes under the mixing speed of 950 revs/min。
Slurrying experiment is carried out with product 1。Coal sample is originated: Factory, Shenmu, Shanxi coal, place, north, Yan ore deposit coal, and coal analysis and paste-forming properties are as follows:
Embodiment 2
(1) synthesis tar oil type slurries additive agent: (1) 20:40:30:10 in mass ratio weighs washing oil, naphtalene oil, carbolineum, papermaking wastewater amount to 1.5mol, washing oil, naphtalene oil, carbolineum are put in the four-hole boiling flask of 1L, weigh the concentrated sulphuric acid 2.3mol of 98% and put in constant pressure funnel。(2) oil bath pan temperature control is to 155 DEG C, adds the concentrated sulphuric acid of 98% with the speed of 4d/s, in 155 DEG C of constant temperature 4-5h under stirring, carries out sulfonating reaction。(3) after sulfonating reaction terminates, being cooled to 120 DEG C, add water 55g, is hydrolyzed 50min in 120 DEG C, adds load weighted papermaking wastewater。(4) the formaldehyde 1.1mol of 37% is dripped with the speed of 4d/s, at 115 DEG C of condensation reaction 4h。(5), after condensation reaction, add calcium hydroxide and adjust pH value to 8。(6) filtrate is concentrated to 50%, adds the potassium carbonate of 15g, dry and prepare brown powder product 2。
Being found out by Fig. 2, the tar oil type slurries additive agent sulfonic group of the 2-in-1 one-tenth of embodiment and methylene absorption peak strength are relatively big, illustrate that its sulfonation degree is higher, and molecular weight is relatively large。
(2) coal dust is prepared: From Shenmu Coal, place, north coal are crushed to certain particle size (≤3mm), then by the omnipotent disintegrating machine dry pulverization process of high speed。Control the broken time, the coal dust that directly broken prepared particle size distribution is suitable, the particle size distribution of coal dust:
Mu Shuo Shenmu County Bei Su
>=40 order 2.2%1.8%
40 order～80 order 13.5%10.6%
80 order～120 order 33.2%21.7%
120 order～200 order 14.7%29.3%
200 order～325 order 11.8%10.6%
≤ 325 order 24.6%26.0%
(3) water-coal-slurry is prepared: according to water coal slurry concentration set in advance (Shenmu County 62%, place 65%, north) and additive amount 0.15%, calculate pressed powder additive, coal amount needed for the water yield and pulping need to be added, by coal dust, additive with add water mix homogeneously, homogenate 5 minutes under the mixing speed of 950 revs/min。
Carrying out slurrying experiment with product 2, paste-forming properties is as follows:
Embodiment 3
(1) synthesis tar oil type slurries additive agent: (1) 25:35:20:20 in mass ratio weighs washing oil, naphtalene oil, carbolineum, papermaking wastewater amount to 1.5mol, washing oil, naphtalene oil, carbolineum are put in the four-hole boiling flask of 1L, weigh the concentrated sulphuric acid 1.8mol of 98% and put in constant pressure funnel。(2) oil bath pan temperature control is to 140 DEG C, adds the concentrated sulphuric acid of 98% with the speed of 4d/s, in 140 DEG C of constant temperature 5h under stirring, carries out sulfonating reaction。(3) after sulfonating reaction terminates, being cooled to 120 DEG C, add water 55g, is hydrolyzed 50min in 120 DEG C, adds load weighted papermaking wastewater。(4) the formaldehyde 0.8mol of 37% is dripped with the speed of 4d/s, at 110 DEG C of condensation reaction 5h。(5), after condensation reaction, add potassium hydroxide and adjust pH value to 9。(6) filtrate is concentrated to 50%, adds the ammonium carbonate of 15g, dry and prepare brown powder product 3。
(2) coal dust is prepared: Xinjiang coal, Inner Mongol coal are crushed to certain particle size (≤3mm), then by the omnipotent disintegrating machine dry pulverization process of high speed。Control the broken time, the coal dust that directly broken prepared particle size distribution is suitable, coal powder size is distributed:
Inner Mongol, order number Xinjiang
>=40 order 3.5%2.8%
40 order～80 order 14.1%11.2%
80 order～120 order 18.7%22.5%
120 order～200 order 15.2%18.6%
200 order～325 order 23.6%20.1%
≤ 325 order 24.9%24.8%
(3) water-coal-slurry is prepared: according to water coal slurry concentration set in advance (56%) and additive amount (Xinjiang 0.47%, Inner Mongol 0.49%), calculate pressed powder additive, coal amount needed for the water yield and pulping need to be added, by coal dust, additive with add water mix homogeneously, homogenate 5 minutes under the mixing speed of 950 revs/min。
Slurrying experiment, coal analysis and paste-forming properties is carried out as follows with product 3:
Embodiment 4
(1) synthesis tar oil type slurries additive agent: (1) 15:30:30:25 in mass ratio weighs washing oil, naphtalene oil, carbolineum, papermaking wastewater amount to 1.5mol, washing oil, naphtalene oil, carbolineum are put in the four-hole boiling flask of 1L, weigh the concentrated sulphuric acid 2.0mol of 98% and put in constant pressure funnel。(2) oil bath pan temperature control is to 160 DEG C, adds the concentrated sulphuric acid of 98% with the speed of 4d/s, in 160 DEG C of constant temperature 4h under stirring, carries out sulfonating reaction。(3) after sulfonating reaction terminates, being cooled to 120 DEG C, add water 55g, is hydrolyzed 50min in 120 DEG C, adds load weighted papermaking wastewater。(4) the formaldehyde 0.9mol of 37% is dripped with the speed of 4d/s, at 120 DEG C of condensation reaction 4h。(5), after condensation reaction, add sodium hydroxide and adjust pH value to 8。(6) filtrate is concentrated to 50%, adds the sodium carbonate of 37.5g, dry and prepare brown powder product 4。
(2) coal dust is prepared: Kaiyang coal is crushed to certain particle size (≤3mm), then by the omnipotent disintegrating machine dry pulverization process of high speed。Control the broken time, the coal dust that directly broken prepared particle size distribution is suitable, coal powder size is distributed:
Order number Kaiyang Bei Su
>=40 order 3.5%2.8%
40 order～80 order 14.1%11.2%
80 order～120 order 18.7%22.5%
120 order～200 order 15.2%18.6%
200 order～325 order 23.6%20.1%
≤ 325 order 24.9%24.8%
(3) water-coal-slurry is prepared: according to water coal slurry concentration set in advance (63%) and additive amount 0.15%, calculate pressed powder additive, coal amount needed for the water yield and pulping need to be added, by coal dust, additive with add water mix homogeneously, homogenate 5 minutes under the mixing speed of 950 revs/min。
Slurrying experiment, coal analysis and paste-forming properties is carried out as follows with product 4:
Embodiment 5
Additive types: product 1 and sodium lignin sulfonate carry out composite (mass ratio) with 6:4
Additive amount (coal-based): Shenmu County, Bei Su: 0.20%；Xinjiang: 0.52%；Inner Mongol: 0.59%
Coal-water fluid concentration: Shenmu County: 62%；Bei Su: 65%；Xinjiang, Inner Mongol: 56%
(1) preparation pressed powder additive: 6:4 weighs additive product 1, sodium lignin sulfonate, mix homogeneously in mass ratio。
(2) coal dust is prepared: Shenmu County, Bei Su, Xinjiang, Inner Mongol coal are crushed to certain particle size (≤3mm), then by the omnipotent disintegrating machine dry pulverization process of high speed。Control the broken time, the coal dust that directly broken prepared particle size distribution is suitable, coal powder size distribution is:
>=40 orders 7.02%
40 order～80 orders 25.33%
80 order～120 orders 8.12%
120 order～200 orders 9.95%
200 order～325 orders 29.14%
≤ 325 orders 20.44%
(3) water-coal-slurry is prepared: according to water coal slurry concentration (62% set in advance, 65%, 56%) and additive amount (0.20%, 0.52%, 0.59%), according to formula, calculate pressed powder additive, the water yield and pulping need to be added needed for coal amount, by coal dust, additive with add water mix homogeneously, homogenate 5 minutes under the mixing speed of 950 revs/min。
Complex additive slurrying experimental result is as follows:
Embodiment 6
Additive types: product 1 and naphthalene system additive carry out composite (mass ratio) with 5:5
Additive amount (coal-based): Shenmu County, place 0.10%, north；Xinjiang: 0.35；Inner Mongol: 0.32%
Coal-water fluid concentration: Shenmu County: 62%；Bei Su: 65%；Xinjiang, Inner Mongol: 56%
(1) preparation pressed powder additive: 5:5 weighs additive product 1, naphthalene system additive, mix homogeneously in mass ratio。
(2) coal dust is prepared: Shenmu County, Bei Su, Xinjiang, Inner Mongol coal are crushed to certain particle size (≤3mm), then by the omnipotent disintegrating machine dry pulverization process of high speed。Control the broken time, the coal dust that directly broken prepared particle size distribution is suitable, coal powder size distribution is:
>=40 orders 9.32%
40 order～80 orders 23.03%
80 order～120 orders 10.15%
120 order～200 orders 7.92%
200 order～325 orders 22.54%
≤ 325 orders 27.04%
(3) water-coal-slurry is prepared: according to water coal slurry concentration (62% set in advance, 65%, 56%) and the addition of additive (0.10%, 0.35%, 0.32%), according to formula, calculate the coal amount required for pressed powder additive, the water yield that need to add and pulping, by coal dust, additive and the water mix homogeneously added, homogenate 5 minutes under the mixing speed of 950 revs/min。
Complex additive slurrying experimental result is as follows:
Tar oil type slurries additive agent is composite with sodium lignin sulfonate, and slurry performance is excellent, and additive coal-based consumption amplification is less；Tar oil type additive and the composite coal slurry mobility of naphthalene sulfonic acid-formaldehyde condensation product are remarkably reinforced, and additive coal-based consumption reduction amplitude is bigger。
Claims (10)
1. a compound material prepares tar oil type slurries additive agent, it is characterized in that, this additive contains benzene sulfonate formaldehyde condensation products, diphenylsulfonates formaldehyde condensation products, anthracene sulfonic acid salt formaldehyde condensation products, naphthalenesulfonate formaldehyde condensation compound, lignosulfonates and hole-blocking agent carbonate, and sulfonic acid group is in the β position of ring-type；And adopt following methods to prepare:
(1) raw material is prepared: weigh washing oil, naphtalene oil, carbolineum, papermaking wastewater are raw material；
(2) sulfonating reaction: weigh sulfonating agent and join in the mixed system of washing oil, naphtalene oil and carbolineum and carry out sulfonating reaction；
(3) hydrolysis: the sulfonic acid group beyond β position obtained in hydrolysing step (2) reaction system, is subsequently adding papermaking wastewater；
(4) condensation reaction: weigh formaldehyde and join in the reaction system that step (3) obtains and carry out formaldehyde condensation reaction；
(5) reaction is neutralized: in the reaction system that step (4) obtains, add alkaline matter, neutralize wherein excessive acid；
(6) concentration, add hole-blocking agent carbonate, dry be prepared from。
2. a compound material prepares the production technology of tar oil type slurries additive agent, it is characterised in that production technology is as follows:
(1) raw material is prepared: weigh washing oil, naphtalene oil, carbolineum, papermaking wastewater are raw material；
(2) sulfonating reaction: weigh sulfonating agent and join in the mixed system of washing oil, naphtalene oil and carbolineum and carry out sulfonating reaction；
(3) hydrolysis: the sulfonic acid group beyond β position obtained in hydrolysing step (2) reaction system, is subsequently adding papermaking wastewater；
(4) condensation reaction: weigh formaldehyde and join in the reaction system that step (3) obtains and carry out formaldehyde condensation reaction；
(5) reaction is neutralized: in the reaction system that step (4) obtains, add alkaline matter, neutralize wherein excessive acid；
(6) concentrate, add hole-blocking agent carbonate, dry and prepare tar oil type slurries additive agent。
3. a kind of compound material according to claim 1-2 prepares tar oil type slurries additive agent and production technology, it is characterized in that, described washing oil, naphtalene oil, carbolineum, papermaking wastewater, hole-blocking agent carbonate, its mass ratio is: 15～25:30～40:20～30:10～25:10～25；Described hole-blocking agent carbonate is water soluble carbonate；Described papermaking wastewater is alkaline paper-making waste liquid, and it is mainly composed of lignin, cellulose, inorganic salt。
4. a kind of compound material described in claim 1-2 prepares tar oil type slurries additive agent and production technology, it is characterized in that, initiation material and sulfonating agent mol ratio 1:1.0-2.2 in sulfonating reaction described in step (2), best 1:1.3-1.8, sulfonation temperature 110 DEG C-180 DEG C, initiation material is the mixture of washing oil, naphtalene oil, carbolineum and papermaking wastewater, and described sulfonating agent is one or both the mixture in concentrated sulphuric acid and oleum。
5. a kind of compound material described in claim 1-2 prepares tar oil type slurries additive agent and production technology, it is characterised in that the hydrolysis described in step (3), and reaction temperature is 120 DEG C。
6. a kind of compound material described in claim 1-2 prepares tar oil type slurries additive agent and production technology, it is characterized in that, the condensation reaction described in step (4), polycondensation initiation material and formaldehyde mole ratio 1:0.6-1.5, best 1:0.7-1.3, condensation temp 90 DEG C-120 DEG C；Its degree of polymerization is 9～17。
7. a kind of compound material described in claim 1-2 prepares tar oil type slurries additive agent and production technology, it is characterized in that, alkaline matter described in step (5) is one or more the mixture in sodium hydroxide, calcium hydroxide, sodium carbonate, potassium carbonate and potassium hydroxide, adjusts pH value to 7-9。
8. a kind of compound material described in claim 1-2 prepares tar oil type slurries additive agent and production technology, it is characterised in that the described 0.15%-1.0% that tar oil type slurries additive agent consumption is coal-based consumption。
9. a kind of compound material described in claim 1-2 prepares tar oil type slurries additive agent and production technology, it is characterized in that, described tar oil type slurries additive agent can be used alone, it is possible to composite with sodium lignin sulfonate or composite with naphthalene sulfonic acid-formaldehyde condensation product, improves performance。
10. a kind of compound material described in claim 1-2 prepares tar oil type slurries additive agent and production technology, it is characterised in that coal grain size distribution requirement is by described tar oil type slurries additive agent: the ratio that the 200 following coal dusts of order account for is 35%-50%。
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| CN111690447A (en) * | 2020-05-11 | 2020-09-22 | 万华化学（宁波）有限公司 | Coal water slurry additive and preparation method and application thereof |
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