CN100526394C - Method for preparing nano grade carbon black from waste rubber - Google Patents
Method for preparing nano grade carbon black from waste rubber Download PDFInfo
- Publication number
- CN100526394C CN100526394C CNB2006100455125A CN200610045512A CN100526394C CN 100526394 C CN100526394 C CN 100526394C CN B2006100455125 A CNB2006100455125 A CN B2006100455125A CN 200610045512 A CN200610045512 A CN 200610045512A CN 100526394 C CN100526394 C CN 100526394C
- Authority
- CN
- China
- Prior art keywords
- carbon black
- waste rubber
- liquefied gas
- liquid solution
- adhesive liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000006229 carbon black Substances 0.000 title claims abstract description 33
- 239000002699 waste material Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000000853 adhesive Substances 0.000 claims description 16
- 230000001070 adhesive effect Effects 0.000 claims description 16
- 239000006193 liquid solution Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 10
- 238000000197 pyrolysis Methods 0.000 claims description 9
- 238000010298 pulverizing process Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003463 adsorbent Substances 0.000 claims description 4
- 239000002283 diesel fuel Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000003502 gasoline Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 241000872198 Serjania polyphylla Species 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 238000004227 thermal cracking Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- 239000003610 charcoal Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 229910021382 natural graphite Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Abstract
The process of preparing nanometer level carbon black with waste rubber includes the following steps: cleaning, crushing and stoving waste rubber, feeding to thermal cracking reactor and introducing liquefied gas; heating at 400-550 deg.c for 10-20 min and separating liquefied gas, mixed oil and crude carbon black; stoving crude carbon black and crushing to micron level; mixing micron level carbon black and industrial alcohol in the weight ratio of 1 to 4-6 and stirring for 30-50 min to prepare carbon black-alcohol sol; repeated crushing the sol in a high speed shearing crusher to form nanometer level carbon black-alcohol sol; separating the nanometer level carbon black-alcohol sol in a high speed centrifugal separator; and vibrating stoving at 80-95 deg.c to obtain nanometer level carbon black. The present invention has waste utilized and the technological process is simple.
Description
Technical field
The present invention relates to a kind of method of preparing nano grade carbon black from waste rubber.
Background technology
Along with the range of application of nanometer carbon black powder is more and more extensive.Except being widely used in water treatment, purifying air and some basic raw materials.Nano level in recent years carbon black material is used widely especially as base mateiral.As ultrafiltration and nanofiltration equipment, the electromagnetic-absorbing coating in the war industry, the ablation under ultra high temperature material, corrosion-resistant, anti-abrasive material, carbon-carbon-fibre composite etc. all be unable to do without high-activity carbon tusche powder.
Existing industrial carbon black production method mainly contains: 1, mechanical crushing method (comprising various ball milleds, Cyclone mill, airflow milling method etc.); 2, hydrocarbon polymer pyrolysis method (comprising ketone, the Pintsch process of liquefied petroleum gas (LPG), kerosene, resin, various alkanes etc. etc.); 3, plant charcoal is directly utilized (comprising various canebreaks, charcoal, bone black shell, husk charcoal etc.); 4, the natural graphite breeze is broken etc.The carbon black powder that aforesaid method is produced all belongs to agraphitic carbon except that natural graphite powder, have very strong chemically reactive, and the granularity of powder is all at micron order, and the natural material cost is more and more higher.
Summary of the invention
Purpose of the present invention is exactly the defective that exists at prior art, provides a kind of waste rubber that utilizes as raw material, directly applies to the method for the preparing nano grade carbon black from waste rubber of suitability for industrialized production.
The technical scheme that adopts is to comprise the following steps:
(1) with after the waste rubber cleaning, pulverizing, dry, adds pyrolysis reactor, send into liquefied gas;
(2) heat temperature raising is to 400-550 ℃, and be 10-20 minute heat-up time, separates to obtain liquefied gas, mixing oil and thick carbon black;
(3) liquefied gas returns pyrolysis reactor, and thick carbon black is dried and is crushed to micron order;
(4) the micron order carbon black powder is mixed with the mass ratio of industrial spirit by 1:4～6, stir after 30～50 minutes, be prepared into a micron carbon black-alcohol adhesive liquid solution;
(5) carbon black-alcohol adhesive liquid solution enters the high speed shear pulverizer, under the condition of 15000～20000 rev/mins of high rotating speeds, carries out pulverizing repeatedly in 30～60 minutes, forms nanometer carbon black-alcohol adhesive liquid solution;
(6) nanometer carbon black-alcohol adhesive liquid solution separates at rotating speed 15000-20000 rev/min separating centrifuge;
(7) under 80-95 ℃ of condition, carry out vibration drying, make nano grade carbon black.
On the basis of such scheme, the isolating mixing oil of step (2) is entered distilling column through adsorbents adsorb impurity and water, further separate gasoline and diesel oil, obtain auxiliary product.
Starting material waste rubber of the present invention belongs to utilization of waste material, after the complete technical process of a cover, directly obtains nano level carbon black powder and accessory oil production.Whole process flow is simple, by existing equipment and technology, can once finish.Quality product reaches nano-scale, can be used as alternative present nanometer carbon black powder material and is extensive use of in industry.
Embodiment
Embodiment 1:
After the waste rubber cleaning, pulverizing, dry, add pyrolysis reactor, send into liquefied gas;
Heat temperature raising to 400 ℃, be 20 minutes heat-up time, separates to obtain liquefied gas, mixing oil and thick carbon black;
Liquefied gas returns pyrolysis reactor, and thick carbon black is dried and is crushed to micron order;
The micron order carbon black powder is mixed with the mass ratio of industrial spirit by 1:4, stir after 35 minutes, be prepared into a micron carbon black-alcohol adhesive liquid solution;
Carbon black-alcohol adhesive liquid solution enters the high speed shear pulverizer, under the condition of 15000 rev/mins of high rotating speeds, carries out pulverizing repeatedly in 36 minutes, forms nanometer carbon black-alcohol adhesive liquid solution;
Nanometer carbon black-alcohol adhesive liquid solution separates at the separating centrifuge of 20000 rev/mins of rotating speeds;
Under 85 ℃ of conditions, carry out vibration drying, make nano grade carbon black.
On the basis of such scheme, isolating mixing oil through adsorbents adsorb impurity and water, is entered distilling column, further separate gasoline and diesel oil, obtain auxiliary product.
Embodiment 2:
After the waste rubber cleaning, pulverizing, dry, add pyrolysis reactor, send into liquefied gas;
Heat temperature raising to 550 ℃, be 10 minutes heat-up time, separates to obtain liquefied gas, mixing oil and thick carbon black;
Liquefied gas returns pyrolysis reactor, and thick carbon black is dried and is crushed to micron order;
The micron order carbon black powder is mixed with the mass ratio of industrial spirit by 1:6, stir after 30 minutes, be prepared into a micron carbon black-alcohol adhesive liquid solution;
Carbon black-alcohol adhesive liquid solution enters the high speed shear pulverizer, under the condition of 18000 rev/mins of high rotating speeds, carries out pulverizing repeatedly in 40 minutes, forms nanometer carbon black-alcohol adhesive liquid solution;
Nanometer carbon black-alcohol adhesive liquid solution separates at the separating centrifuge of 20000 rev/mins of rotating speeds;
Under 95 ℃ of conditions, carry out vibration drying, make nano grade carbon black.
On the basis of such scheme, isolating mixing oil through adsorbents adsorb impurity and water, is entered distilling column, further separate gasoline and diesel oil, obtain auxiliary product.
Claims (2)
1, a kind of method of preparing nano grade carbon black from waste rubber is characterized in that comprising the following steps:
(1) with after the waste rubber cleaning, pulverizing, dry, adds pyrolysis reactor, send into liquefied gas;
(2) heat temperature raising is to 400-550 ℃, and be 10-20 minute heat-up time, separates to obtain liquefied gas, mixing oil and thick carbon black;
(3) liquefied gas returns pyrolysis reactor, and thick carbon black is dried and is crushed to micron order;
(4) the micron order carbon black powder is mixed with the mass ratio of industrial spirit by 1:4～6, stir after 30～50 minutes, be prepared into a micron carbon black-alcohol adhesive liquid solution;
(5) carbon black-alcohol adhesive liquid solution enters the high speed shear pulverizer, under the condition of 15000～20000 rev/mins of high rotating speeds, carries out pulverizing repeatedly in 30～60 minutes, forms nanometer carbon black-alcohol adhesive liquid solution;
(6) nanometer carbon black-alcohol adhesive liquid solution separates at rotating speed 15000-20000 rev/min separating centrifuge;
(7) under 80-95 ℃ of condition, carry out vibration drying, make nano grade carbon black.
2, the method for preparing nano grade carbon black from waste rubber according to claim 1 is characterized in that: the isolating mixing oil of step (2) enters distillation tower through adsorbents adsorb impurity and water, further separates gasoline and diesel oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100455125A CN100526394C (en) | 2006-07-19 | 2006-07-19 | Method for preparing nano grade carbon black from waste rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100455125A CN100526394C (en) | 2006-07-19 | 2006-07-19 | Method for preparing nano grade carbon black from waste rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1900175A CN1900175A (en) | 2007-01-24 |
| CN100526394C true CN100526394C (en) | 2009-08-12 |
Family
ID=37656173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100455125A Expired - Fee Related CN100526394C (en) | 2006-07-19 | 2006-07-19 | Method for preparing nano grade carbon black from waste rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100526394C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265828A (en) * | 2013-05-08 | 2013-08-28 | 明溪县宝福再生资源开发中心 | Solid phase grafting modification method of regeneration pyrolysis carbon black |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013188B (en) * | 2012-12-11 | 2014-11-26 | 开平市康汇橡胶制品有限公司 | Production process for environment-friendly carbon black powder |
| CN106276908B (en) * | 2015-12-02 | 2018-02-06 | 临泉县泉河纳米植物新材料有限公司 | A kind of nanometer plant carbon black and preparation method thereof |
-
2006
- 2006-07-19 CN CNB2006100455125A patent/CN100526394C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 利用废橡胶生产柴油和碳黑新工艺. 贺英.化学工业与工程技术，第20卷第4期. 1999 |
| 利用废橡胶生产柴油和碳黑新工艺. 贺英.化学工业与工程技术，第20卷第4期. 1999 * |
| 废橡胶制备燃料油和炭黑. 郭应臣等.环境污染与防治，第23卷第2期. 2001 |
| 废橡胶制备燃料油和炭黑. 郭应臣等.环境污染与防治，第23卷第2期. 2001 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265828A (en) * | 2013-05-08 | 2013-08-28 | 明溪县宝福再生资源开发中心 | Solid phase grafting modification method of regeneration pyrolysis carbon black |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1900175A (en) | 2007-01-24 |
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