CN103421358A - Easy-to-disperse super-wear-resistant carbon black and production process thereof - Google Patents
Easy-to-disperse super-wear-resistant carbon black and production process thereof Download PDFInfo
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- CN103421358A CN103421358A CN2013103690979A CN201310369097A CN103421358A CN 103421358 A CN103421358 A CN 103421358A CN 2013103690979 A CN2013103690979 A CN 2013103690979A CN 201310369097 A CN201310369097 A CN 201310369097A CN 103421358 A CN103421358 A CN 103421358A
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- 239000006229 carbon black Substances 0.000 title claims abstract description 86
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000000779 smoke Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 239000011280 coal tar Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000000446 fuel Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000003345 natural gas Substances 0.000 claims abstract description 15
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 238000005299 abrasion Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 238000010504 bond cleavage reaction Methods 0.000 claims description 13
- 235000009508 confectionery Nutrition 0.000 claims description 13
- 230000007017 scission Effects 0.000 claims description 13
- 239000006236 Super Abrasion Furnace Substances 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 239000003546 flue gas Substances 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 239000003610 charcoal Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 6
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 abstract 6
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000000197 pyrolysis Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 31
- 239000000047 product Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000003490 calendering Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000035924 thermogenesis Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Disclosed are easy-to-disperse super-wear-resistant carbon black and a production process thereof. The technical scheme includes that the process includes taking anthracene oil or a mixture of anthracene oil and coal tar oil as raw oil, taking natural gas as fuel without adding of auxiliaries, enabling incomplete pyrolysis reaction to occur in a reaction furnace to generate carbon black smoke, and obtaining carbon black particles after treating the generated carbon black smoke. The easy-to-disperse super-wear-resistant carbon black and the production process thereof have the advantages that the natural gas is taken as the fuel, the coal tar oil and the anthracene oil which are mixed according to a proper proportion are taken as the raw oil which is reasonable in structure, carbon black is high in quality, and produced carbon black products are extremely small in grain diameter, narrow in distribution, high in structural ratio and easy to disperse in size. Powdery carbon black is obtained after going through a micrometer smasher, a pelletizer and a dryer, and the easy-to-disperse super-wear-resistant carbon black is mature in preparation process and suitable for industrial production and has obvious economic benefit.
Description
Technical field
The present invention relates to super abrasion resistant carbon black and production technique thereof that a kind of high structure is easily disperseed.
Background technology
Carbon black be many hydrocarbons (solid-state, liquid, gaseous state) at high temperature, the unformed charcoal of producing through the incomplete combustion cracking.Carbon black specific surface is very wide, and because of its production method difference, the physicochemical property of carbon black also difference are very large.At present, super abrasion furnace black quality product also quality differs, such as the N110 that includes now the ASTM standard in, N121, N134 etc. all belongs to super abrasion furnace black series, and the shortcoming of this series product concentrated expression is exactly that mixing energy consumption is high, difficulties in dispersion, and calendering and extrusion are difficult etc.
The patent that publication number is [CN102977644A] discloses a kind of super abrasion resistant carbon black and manufacture craft thereof, in the preparation technology of carbon black, it has adopted salt of wormwood as additive, space in the middle of the large aggregate of carbon black can effectively hold little aggregate, forms the embedding state, has weakened the interaction of aggregate inside, also hindered the production of network simultaneously, and network is the major cause lagged behind, therefore when aggregate size greatly, during wider distribution, the cross-linked rubber heat-dissipating is low.Salt of wormwood is as the production of carbon black additive, in processing condition, under definite prerequisite, can affect to a certain extent the form of carbon black aggregate, makes that its aggregate is less than normal, narrowly distributing, but is unfavorable for improving the thermogenesis performance of cross-linked rubber.
Summary of the invention
The purpose of this invention is to provide a kind of similar N121 product and there is higher structure, best reinforcement, dispersion and wear resisting property, simultaneously lower super abrasion resistant carbon black and the production technique thereof of heat-dissipating.
The present invention realizes that the technical scheme that goal of the invention adopts is: the production technique of the super abrasion resistant carbon black of a kind of easy dispersion, described technique be take the mixture of carbolineum or carbolineum and coal tar as stock oil, take Sweet natural gas as fuel and do not add auxiliary agent, incomplete scission reaction occurs in Reaktionsofen generate carbon black smoke, and the carbon black smoke of generation is obtained to carbon black particle through aftertreatment, key is: the described concrete technology step that incomplete scission reaction generation carbon black smoke occurs in Reaktionsofen comprises:
A, pressurized air preheating: will be compressed to the air of 165 ~ 190Kpa after air preheater is preheating to 700～800 ℃, and deliver to the distribution plenum of Reaktionsofen by the hot blast pipeline;
B, fuel and the burning of heat of compression air mixed: Sweet natural gas is sent into to the combustion chamber of Reaktionsofen, and the warm air mixed firing of sending with above-mentioned distribution plenum, temperature of combustion is controlled at 1900 ~ 1927 ℃;
C, scission reaction: the stock oil that is 180 ~ 260 ℃ by temperature after preheating is sprayed into by the trunnion section of Reaktionsofen, through atomization, shearing, carry out the scission reaction of 6 ~ 20 milliseconds at the conversion zone of Reaktionsofen, produce carbon black smoke, the composition of stock oil is carbolineum or is by ratio of weight and the number of copies the carbolineum of (8:2) ~ (10:0.001) and the mixture of coal tar.
The super abrasion resistant carbon black of a kind of easy dispersion, key is: described carbon black be take carbolineum or carbolineum and coal tar mixture as stock oil, take Sweet natural gas as fuel, do not add auxiliary agent, and based on the super abrasion furnace black oven process, be prepared from, wherein carbolineum and coal tar by weight the mark ratio be: (8:2) ~ (10:0.001).
The most significant advantage of the present invention is: the present invention be take Sweet natural gas as fuel, and coal tar, carbolineum are mixed into stock oil with suitable proportion, and the stock oil of employing is rational in infrastructure, carbon black mass is better, the minimum and narrow distribution of the carbon black products particle diameter that produces, structure is higher, in sizing material, easily disperses.The powdery carbon black makes after micron disintegrator, tablets press, drying machine, and mature preparation process, is applicable to industrialized production, has significant economic benefit.
Carbon black products of the present invention (called after LX-IS107) belongs to the super abrasion furnace black category, has the advantages such as reinforcing property is high, wear resisting property is fabulous, also gives prominence to the shortcoming of having improved super wear-resisting serial carbon black difficulties in dispersion simultaneously.LX-IS107 carbon black particle of the present invention disperses grade point can reach 7.5 grades of left and right, and the carbon black particles such as N110 that belong to super abrasion furnace black together disperse grade point generally 5 grades of left and right, from above-mentioned separate data, can find out, LX-IS107 disperses high 50% left and right of grade point than common super abrasion furnace black, has well improved the super wear-resisting serial carbon black of high structure and has been difficult for the shortcoming of disperseing.
Below in conjunction with accompanying drawing, the present invention is described in detail.
The accompanying drawing explanation
Fig. 1 is technological process of production schematic diagram of the present invention.
Embodiment
The production technique of the super abrasion resistant carbon black of a kind of easy dispersion, described technique be take the mixture of carbolineum or carbolineum and coal tar as stock oil, take Sweet natural gas as fuel and do not add auxiliary agent, incomplete scission reaction occurs in Reaktionsofen generate carbon black smoke, and the carbon black smoke of generation is obtained to carbon black particle through aftertreatment, key is: the described concrete technology step that incomplete scission reaction generation carbon black smoke occurs in Reaktionsofen comprises:
A, pressurized air preheating: will be compressed to the air of 165 ~ 190Kpa after air preheater is preheating to 700～800 ℃, and deliver to the distribution plenum of Reaktionsofen by the hot blast pipeline;
B, fuel and the burning of heat of compression air mixed: Sweet natural gas is sent into to the combustion chamber of Reaktionsofen, and the warm air mixed firing of sending with above-mentioned distribution plenum, temperature of combustion is controlled at 1900 ~ 1927 ℃;
C, scission reaction: the stock oil that is 180 ~ 260 ℃ by temperature after preheating is sprayed into by the trunnion section of Reaktionsofen, through atomization, shearing, carry out the scission reaction of 6 ~ 20 milliseconds at the conversion zone of Reaktionsofen, produce carbon black smoke, the composition of stock oil is carbolineum or is by ratio of weight and the number of copies the carbolineum of (8:2) ~ (10:0.001) and the mixture of coal tar.
In described step C, the flow velocity that stock oil is sprayed into by the trunnion section of Reaktionsofen is 3500 ~ 4000kg/h.
The step of described aftertreatment comprises:
D, flue gas are cooling: the carbon black smoke obtained in step C is carried out to a chilling cooling at the Reaktionsofen quench zone, then, by after the carbon black smoke heating after the chilling cooling, carry out the cooling of secondary chilling and flue-gas temperature is down to 260 ~ 290 ℃;
E, the carbon black smoke that will lower the temperature after processing are sent into main bag filter and are collected, and the carbon black of collection is pulverized and delivered to the collection cyclonic separator by the wind fan through micron disintegrator;
The carbon black that F, described cyclonic separator collect is through granulator granulation, controls 60% ~ 70% carbon black particle particle diameter in 0.5 ~ 1.4mm scope;
G, the carbon black particle drying machine obtained after granulation is carried out to drying obtain easily disperseing super wear-resisting charcoal.
In described stock oil, the moisture of each oil product counts by weight percentage, and all is less than 1.2%.
Described carbon black be take carbolineum or carbolineum and coal tar mixture as stock oil, take Sweet natural gas as fuel, do not add auxiliary agent, and be prepared from based on the super abrasion furnace black oven process, wherein carbolineum and coal tar by weight the mark ratio be: (8:2) ~ (10:0.001).
In described stock oil, the moisture of each oil product counts by weight percentage, and all is less than 1.2%.
Below provide 4 specific embodiments of preparation technology of the present invention:
The super abrasion resistant carbon black that a kind of high structure is easily disperseed, it is that to take carbolineum that weight ratio is 8:2 and the mixture of coal tar be stock oil, does not use additive, Sweet natural gas is fuel, adopts super abrasion furnace black oven process production technique to be prepared from; Stock oil treatment capacity scope 3700-4000kg/h wherein.Various water-in-oils in described stock oil need be less than 2%, and density is between 1.09～1.21g/ml, and oil yield is not less than 50%.
Embodiment 2
The super abrasion resistant carbon black easily disperseed by the described high structure of super abrasion furnace black oven process production example 1, the production technique concrete steps are as follows:
(1) air that will be compressed to 165～190Kpa is preheating to 700～800 ℃ through air preheater, delivers to the distribution plenum of Reaktionsofen through the hot blast pipeline;
(2) described fuel is sent into to the combustion chamber of Reaktionsofen, with the warm air mixed firing that above-mentioned distribution plenum is sent, temperature is controlled at 1900～1927 ℃.Described stock oil, after the fuel oil preheating device is preheated to 180～260 ℃, is sprayed into by the trunnion section of Reaktionsofen, through atomization, shearing, carries out the scission reaction (1600～1700 ℃ of conversion zone temperature) of 6～20 milliseconds at the conversion zone of Reaktionsofen, produces carbon black smoke;
(3) described carbon black smoke carries out a chilling (flue-gas temperature is down to 850～950 ℃) at the Reaktionsofen quench zone, pass through successively again air preheater (flue-gas temperature is down to 600～680 ℃) and fuel oil preheating device (flue-gas temperature is down to 370～500 ℃), carry out again the secondary chilling, finally make flue-gas temperature be down to 260～290 ℃;
(4) carbon black smoke after the cooling enters main bag filter and is collected, and the carbon black of collection is pulverized and delivered to the collection cyclonic separator by the wind fan through micron disintegrator, and tail gas is sent into tail gas furnace or for generating;
(5) carbon black that described cyclonic separator is collected, through granulator granulation, is controlled the carbon black particle particle diameter of 60-70% in the 0.5-1.4mm scope, then the drying machine is dry get final product, when dry, can use tail gas in tail gas furnace as thermal source.
Embodiment 3
The super abrasion resistant carbon black that a kind of high structure is easily disperseed, it is that to take carbolineum that weight ratio is 9:1 and the mixture of coal tar be stock oil, does not use additive, Sweet natural gas is fuel, adopts super abrasion furnace black oven process production technique to be prepared from; Stock oil treatment capacity scope 3600-3900kg/h wherein.Various water-in-oils in described stock oil need be less than 2%, and density is between 1.09～1.21g/ml, and oil yield is not less than 50%.The preparation method of the present embodiment is with embodiment 2.
Embodiment 4
The super abrasion resistant carbon black that a kind of high structure is easily disperseed, it is that to take carbolineum that weight ratio is 10:0 and the mixture of coal tar be stock oil, does not use additive, Sweet natural gas is fuel, adopts super abrasion furnace black oven process production technique to be prepared from; Stock oil treatment capacity scope 3500-3800kg/h wherein.Various water-in-oils in described stock oil need be less than 2%, and density is between 1.09～1.21g/ml, and oil yield is not less than 50%.The preparation method of the present embodiment is with embodiment 2.
N170 carbon black products index of the present invention is as follows:
| Project | Index |
| Iodine absorption value g/kg | 140±5 |
| Oil-absorption(number) 10 -5m 3/kg | 130±5 |
| Weight loss on heating %≤ | 3.0 |
| 45um washing sieve excess mg/kg≤ | 500 |
| Compression oil-absorption(number) 10 -5m 3/kg | 100-108 |
| Tinctorial strength % | 125-135 |
| Ash content %≤ | 1 |
| Volatile matter %≤ | 3.0 |
| PH value | 6-8 |
| Impurity | Nothing |
| Pour into density Kg/m 3 | 250-350 |
It is to explain carbon black specific surface that iodine absorption value, nitrogen adsorb these two, and oil-absorption(number) and tinctorial strength are to reflect carbon structure, particle diameter, and when specific surface area and carbon structure are high, its wear resistance is strong; Some routines that these indexs are carbon black products require test item, LX-IS107 model carbon black detected value in the present invention is different from any super abrasion resistant carbon black in GB, this model carbon black is due to raw material mix, optimization of process conditions, make its aggregate size large, distribute wide, have the advantage of easy dispersion in wear resistance under strong prerequisite concurrently.
Claims (6)
1. a production technique of easily disperseing super abrasion resistant carbon black, described technique be take the mixture of carbolineum or carbolineum and coal tar as stock oil, take Sweet natural gas as fuel and do not add auxiliary agent, incomplete scission reaction occurs in Reaktionsofen generate carbon black smoke, and the carbon black smoke of generation is obtained to carbon black particle through aftertreatment, it is characterized in that: the described concrete technology step that incomplete scission reaction generation carbon black smoke occurs in Reaktionsofen comprises:
A, pressurized air preheating: will be compressed to the air of 165 ~ 190Kpa after air preheater is preheating to 700～800 ℃, and deliver to the distribution plenum of Reaktionsofen by the hot blast pipeline;
B, fuel and the burning of heat of compression air mixed: Sweet natural gas is sent into to the combustion chamber of Reaktionsofen, and the warm air mixed firing of sending with above-mentioned distribution plenum, temperature of combustion is controlled at 1900 ~ 1927 ℃;
C, scission reaction: the stock oil that is 180 ~ 260 ℃ by temperature after preheating is sprayed into by the trunnion section of Reaktionsofen, through atomization, shearing, carry out the scission reaction of 6 ~ 20 milliseconds at the conversion zone of Reaktionsofen, produce carbon black smoke, the composition of stock oil is carbolineum or is by ratio of weight and the number of copies the carbolineum of (8:2) ~ (10:0.001) and the mixture of coal tar.
2. the production technique of the super abrasion resistant carbon black of a kind of easy dispersion according to claim 1 is characterized in that: in described step C, the flow velocity that stock oil is sprayed into by the trunnion section of Reaktionsofen is 3500 ~ 4000kg/h.
3. the production technique of the super abrasion resistant carbon black of a kind of easy dispersion according to claim 1, it is characterized in that: the step of described aftertreatment comprises:
D, flue gas are cooling: the carbon black smoke obtained in step C is carried out to a chilling cooling at the Reaktionsofen quench zone, then, by after the carbon black smoke heating after the chilling cooling, carry out the cooling of secondary chilling and flue-gas temperature is down to 260 ~ 290 ℃;
E, the carbon black smoke that will lower the temperature after processing are sent into main bag filter and are collected, and the carbon black of collection is pulverized and delivered to the collection cyclonic separator by the wind fan through micron disintegrator;
The carbon black that F, described cyclonic separator collect is through granulator granulation, controls 60% ~ 70% carbon black particle particle diameter in 0.5 ~ 1.4mm scope;
G, the carbon black particle drying machine obtained after granulation is carried out to drying obtain easily disperseing super wear-resisting charcoal.
4. the production technique of the super abrasion resistant carbon black of a kind of easy dispersion according to claim 1, it is characterized in that: in described stock oil, the moisture of each oil product counts by weight percentage, and all is less than 1.2%.
5. one kind is easily disperseed super abrasion resistant carbon black, it is characterized in that: described carbon black be take carbolineum or carbolineum and coal tar mixture as stock oil, take Sweet natural gas as fuel, do not add auxiliary agent, and based on the super abrasion furnace black oven process, be prepared from, wherein carbolineum and coal tar by weight the mark ratio be: (8:2) ~ (10:0.001).
6. the super abrasion resistant carbon black of a kind of easy dispersion according to claim 5, it is characterized in that: in described stock oil, the moisture of each oil product counts by weight percentage, and all is less than 1.2%.
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