CN102250497B - Preparation method of novel carbon black for rubbers - Google Patents
Preparation method of novel carbon black for rubbers Download PDFInfo
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- CN102250497B CN102250497B CN201110138662.1A CN201110138662A CN102250497B CN 102250497 B CN102250497 B CN 102250497B CN 201110138662 A CN201110138662 A CN 201110138662A CN 102250497 B CN102250497 B CN 102250497B
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Abstract
The invention relates to a preparation method of novel carbon black for rubbers. The method of the invention is characterized by comprising the following steps of: (1) choosing raw coal; (2) carrying out multistage crushing; (3) subjecting the obtained fine carbon particles to a surface activating treatment; (4) conducting granulation, drying and impurity elimination, thus obtaining the product. By employing the measures of crushing, surface modification and the like, the method of the invention abandons the traditional combustion method and has no discharge of "three wastes" like the exhaust gas of carbon dioxide in the whole process, thus meeting the environmental requirements. In addition, only with the costs of raw coal, labor wages, water and electricity, etc., the method provided in the invention has a high yield close to the theoretical value and is convenient for market acception and mass promotion and application.
Description
Technical field
The present invention relates to a kind of preparation method of carbon black, especially relate to the preparation method of carbon black for a kind of rubber, belong to productive method of chemical engineering technical field.
Background technology
Along with the earth development of China automobile industry and the significantly raising of automobile usage quantity, China has stepped into world car manufacture and consumption big country, and the while also becomes the manufacture big country of rubber tyre, and the important supplementary material carbon black developing as rubber tyre, its demand is also increasing, traditional Carbon black production method adopts heavy oil and coal tar or oil ethylene bottom oil and Sweet natural gas (using on a small quantity acetylene gas), in to its thermo-cracking and unburnt process, collect its product, form after treatment industrial carbon black.
Above-mentioned processing method is in preparing the process of carbon black, and raw material consumption amount is very large, and carbon black product per ton consumes approximately 2 tons of stock oils or consumes Sweet natural gas 15000～40000m
3, because material cost raises up with oil price adjustment, and high gradually, therefore, cost is very high, in addition, in the process of producing, can produce a large amount of CO
2gas, is thrown in atmosphere, has caused the severe contamination of environment, does not meet the situation of Present Global Economic development energy-saving and emission-reduction and low-carbon (LC).
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide the preparation method of carbon black for rubber that a kind of energy-conservation, low-carbon (LC), cost are low.
For achieving the above object, the present invention is achieved by the following technical solutions:
A preparation method for carbon black for rubber, is characterized in that, comprises the following steps:
(1) choose raw coal: raw coal is chosen too western coal, and its carbon content is greater than 97.0%;
(2) multiple stage crushing: adopt to clash into respectively broken, high speed shear gall broken, speed lapping is broken, level Four fragmentation is carried out in high pressure or the fragmentation of ultra-high voltage static pressure, the median size of the material after finished breaking is the thin carbon particles that is less than 80nm;
(3) thin surfaces of carbon particles activation treatment: the thin carbon particles that adopts modification agent to obtain step (2) carries out surface active, after surface active, be applicable to different rubber types, as natural gum, second the third glue, butadiene-styrene rubber, cis-butadiene cement etc., and there is good mechanics of machinery intensity, tensile strength and wear resisting property, and be easy to processing (heat that reduces thermal friction and produce), make the many specifications of carbon black product, extensively applicable, reach efficient low-consume object;
(4) granulation, oven dry, decon: the thin carbon particles to step (3) after surface activation process carries out obtaining product after granulation, oven dry, decon, its particle diameter meets the particle diameter fineness requirement of carbon black for rubber.
Wherein, what the described shock fragmentation of step (2) adopted is alligator, and it carries out primary breakup to raw coal, and the median size of the raw coal after fragmentation is 40～180 orders; What high speed shear galled broken employing is that high abrasion colloidal mill is broken, and after two-stage crushing, the median size after fragmentation is less than 1000 orders; Speed lapping is broken adopts branch type stirring worn-off broken, and after secondary circulation fragmentation, median size is 400～500nm; What high pressure or the fragmentation of ultra-high voltage static pressure adopted is that pressure is the superhigh-voltage homogenizing machine of 45000psi, after this superhigh-voltage homogenizing machine carries out fragmentation, obtains the thin carbon particles that median size is less than 80nm.
In addition, the described modification agent of above-mentioned step (3) is the mixture of salicylate and silane compound.
The invention has the beneficial effects as follows: the present invention has abandoned traditional combustion method, adopt the measures such as fragmentation, surface modification to prepare carbon black, this production technique preparation whole process in without three waste discharges such as CO 2 waste gas, meet environmental requirement, in addition, cost of the present invention is low, only have the costs such as feed coal, labor wage, water power, recovery rate approaches theoretical value, has higher productive rate, is convenient to market and accepts and a large amount of applying.
Embodiment
Below in conjunction with specific embodiment, the present invention is done to concrete introduction.
In the present invention, described median size refers to: the equivalent diameter of largest particle when cumulative distribution is 50% in size distribution curve.
Embodiment 1:
A preparation method for carbon black for rubber, comprises the following steps:
(1) choose raw coal: raw coal is chosen too western coal, its carbon content is 97.2% through detecting;
(2) multiple stage crushing: adopt to clash into respectively broken, high speed shear gall broken, speed lapping is broken, level Four fragmentation is carried out in high pressure or the fragmentation of ultra-high voltage static pressure, the median size of the material after finished breaking is less than the thin carbon particles of 80nm, wherein, what clash into broken employing is alligator, it carries out primary breakup to raw coal, and the median size of the raw coal after fragmentation is 40 orders; What high speed shear galled broken employing is that high abrasion colloidal mill is broken, and after two-stage crushing, the median size after fragmentation is 960 orders; Speed lapping is broken adopts branch type stirring worn-off broken, and after secondary circulation fragmentation, median size is 415nm; What high pressure or the fragmentation of ultra-high voltage static pressure adopted is that pressure is the superhigh-voltage homogenizing machine of 45000psi, after this superhigh-voltage homogenizing machine carries out fragmentation, obtains the thin carbon particles of median size 73nm.
(3) thin surfaces of carbon particles activation treatment: the thin carbon particles that adopts modification agent to obtain step (2) carries out surface active, in the present embodiment, modification agent is the mixture of salicylate and silane compound, after surface active, be applicable to different rubber types, as natural gum, second the third glue, butadiene-styrene rubber, cis-butadiene cement etc., and there is good mechanics of machinery intensity, tensile strength and wear resisting property, and be easy to processing (heat that reduces thermal friction and produce), make the many specifications of carbon black product, extensively applicable, reach efficient low-consume object;
(4) granulation, oven dry, decon: the thin carbon particles to step (3) after surface activation process carries out obtaining product after granulation, oven dry, decon, its particle diameter meets the particle diameter fineness requirement of carbon black for rubber.
Embodiment 2:
A preparation method for carbon black for rubber, comprises the following steps:
(1) choose raw coal: raw coal is chosen too western coal, its carbon content is 97.6% through detecting;
(2) multiple stage crushing: adopt to clash into respectively broken, high speed shear gall broken, speed lapping is broken, level Four fragmentation is carried out in high pressure or the fragmentation of ultra-high voltage static pressure, the median size of the material after finished breaking is less than the thin carbon particles of 80nm, wherein, what clash into broken employing is alligator, it carries out primary breakup to raw coal, and the median size of the raw coal after fragmentation is 155 orders; What high speed shear galled broken employing is that high abrasion colloidal mill is broken, and after two-stage crushing, the median size after fragmentation is 980 orders; Speed lapping is broken adopts branch type stirring worn-off broken, and after secondary circulation fragmentation, median size is 450nm; What high pressure or the fragmentation of ultra-high voltage static pressure adopted is that pressure is the superhigh-voltage homogenizing machine of 45000psi, after this superhigh-voltage homogenizing machine carries out fragmentation, obtains the thin carbon particles of median size 75nm.
(3) thin surfaces of carbon particles activation treatment: the thin carbon particles that adopts modification agent to obtain step (2) carries out surface active, in the present embodiment, modification agent is the mixture of salicylate and silane compound, after surface active, be applicable to different rubber types, as natural gum, second the third glue, butadiene-styrene rubber, cis-butadiene cement etc., and there is good mechanics of machinery intensity, tensile strength and wear resisting property, and be easy to processing (heat that reduces thermal friction and produce), make the many specifications of carbon black product, extensively applicable, reach efficient low-consume object;
(4) granulation, oven dry, decon: the thin carbon particles to step (3) after surface activation process carries out obtaining product after granulation, oven dry, decon, its particle diameter meets the particle diameter fineness requirement of carbon black for rubber.
Embodiment 3:
A preparation method for carbon black for rubber, comprises the following steps:
(1) choose raw coal: raw coal is chosen too western coal, its carbon content is 97.3% through detecting;
(2) multiple stage crushing: adopt to clash into respectively broken, high speed shear gall broken, speed lapping is broken, level Four fragmentation is carried out in high pressure or the fragmentation of ultra-high voltage static pressure, the median size of the material after finished breaking is less than the thin carbon particles of 80nm, wherein, what clash into broken employing is alligator, it carries out primary breakup to raw coal, and the median size of the raw coal after fragmentation is 180 orders; What high speed shear galled broken employing is that high abrasion colloidal mill is broken, and after two-stage crushing, the median size after fragmentation is 1000 orders; Speed lapping is broken adopts branch type stirring worn-off broken, and after secondary circulation fragmentation, median size is 480nm; What high pressure or the fragmentation of ultra-high voltage static pressure adopted is that pressure is the superhigh-voltage homogenizing machine of 45000psi, after this superhigh-voltage homogenizing machine carries out fragmentation, obtains the thin carbon particles of median size 79nm.
(3) thin surfaces of carbon particles activation treatment: the thin carbon particles that adopts modification agent to obtain step (2) carries out surface active, in the present embodiment, modification agent is the mixture of salicylate and silane compound, after surface active, be applicable to different rubber types, as natural gum, second the third glue, butadiene-styrene rubber, cis-butadiene cement etc., and there is good mechanics of machinery intensity, tensile strength and wear resisting property, and be easy to processing (heat that reduces thermal friction and produce), make the many specifications of carbon black product, extensively applicable, reach efficient low-consume object;
(4) granulation, oven dry, decon: the thin carbon particles to step (3) after surface activation process carries out obtaining product after granulation, oven dry, decon, its particle diameter meets the particle diameter fineness requirement of carbon black for rubber.
Known through 3 above-mentioned embodiment: the present invention is by adopting the mode of multiple stage crushing and surface active to prepare carbon black, not only final carbon black can meet the particle diameter fineness of carbon black for rubber, and be applicable to different rubber types, as natural gum, second the third glue, butadiene-styrene rubber, cis-butadiene cement etc., make many specifications of carbon black product, extensively applicable, reach efficient low-consume object.
Above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (1)
1. a preparation method for carbon black for rubber, is characterized in that, comprises the following steps:
(1) choose raw coal: raw coal is chosen too western coal, and its carbon content is greater than 97.0%;
(2) multiple stage crushing: adopt to clash into respectively broken, high speed shear gall broken, speed lapping is broken, level Four fragmentation is carried out in high pressure or the fragmentation of ultra-high voltage static pressure, the median size of the material after finished breaking is the thin carbon particles that is less than 80nm;
(3) thin surfaces of carbon particles activation treatment: the thin carbon particles that adopts modification agent to obtain step (2) carries out surface active;
(4) granulation, oven dry, decon: the thin carbon particles to step (3) after surface activation process carries out obtaining product after granulation, oven dry, decon,
What the described shock fragmentation of step (2) adopted is alligator, and it carries out primary breakup to raw coal, and the median size of the raw coal after fragmentation is 40～180 orders; What described high speed shear galled broken employing is that high abrasion colloidal mill is broken, and after two-stage crushing, the median size after fragmentation is less than 1000 orders; Described speed lapping is broken adopts branch type stirring worn-off broken, and after secondary circulation fragmentation, median size is 400～500nm; What described high pressure or the fragmentation of ultra-high voltage static pressure adopted is that pressure is the superhigh-voltage homogenizing machine of 45000psi, after this superhigh-voltage homogenizing machine carries out fragmentation, obtains the thin carbon particles that median size is less than 80nm; And the described modification agent of step (3) is the mixture of salicylate and silane compound.
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| CN201110138662.1A CN102250497B (en) | 2011-05-26 | 2011-05-26 | Preparation method of novel carbon black for rubbers |
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| CN201110138662.1A CN102250497B (en) | 2011-05-26 | 2011-05-26 | Preparation method of novel carbon black for rubbers |
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| CN102250497B true CN102250497B (en) | 2014-04-16 |
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| CN102732067B (en) * | 2012-07-12 | 2013-11-27 | 韩钊武 | Method for preparing carbon black with coal serving as raw material |
| CN103232874A (en) * | 2013-03-28 | 2013-08-07 | 健雄职业技术学院 | Production process for preparing nanometer coal powder by using puffing and mechanical crushing |
| CN109652014A (en) * | 2018-12-26 | 2019-04-19 | 宁波杉元石墨烯科技有限公司 | A kind of graphene dispersion grinding aid and preparation method thereof |
| CN110982305A (en) * | 2019-12-18 | 2020-04-10 | 郑州久源化工有限公司 | Production process of tire airtight material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313354A (en) * | 2001-04-06 | 2001-09-19 | 高象升 | Process for preparing rubber-strengthening agent from powdered coal ash |
| CN1493605A (en) * | 2002-10-28 | 2004-05-05 | 西北化工研究院 | Technological method of coal prepared rubber reinforcing filler |
| WO2006037278A1 (en) * | 2004-10-09 | 2006-04-13 | Min Duo Chen | A reclaiming method of waste elastomer |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313354A (en) * | 2001-04-06 | 2001-09-19 | 高象升 | Process for preparing rubber-strengthening agent from powdered coal ash |
| CN1493605A (en) * | 2002-10-28 | 2004-05-05 | 西北化工研究院 | Technological method of coal prepared rubber reinforcing filler |
| WO2006037278A1 (en) * | 2004-10-09 | 2006-04-13 | Min Duo Chen | A reclaiming method of waste elastomer |
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Address after: 241003 Room 308, building 3, Fortune Plaza, central city, Lugang street, Yijiang District, Wuhu City, Anhui Province Patentee after: Rui Li Address before: 214533 Dongxing Industrial Park, Jingjiang City, Taizhou City, Jiangsu Province Patentee before: Rui Li |
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Address after: 214533 Dongxing Industrial Park, Jingjiang City, Taizhou City, Jiangsu Province Patentee after: Rui Li Address before: 241003 Room 308, building 3, Fortune Plaza, central city, Lugang street, Yijiang District, Wuhu City, Anhui Province Patentee before: Rui Li |