CN104610570A - Regeneration method of rubber - Google Patents
Regeneration method of rubber Download PDFInfo
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- CN104610570A CN104610570A CN201510049013.2A CN201510049013A CN104610570A CN 104610570 A CN104610570 A CN 104610570A CN 201510049013 A CN201510049013 A CN 201510049013A CN 104610570 A CN104610570 A CN 104610570A
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- rubber
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- sweetening agent
- renovation process
- rubber powder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a regeneration method of rubber, and relates to the technical field of regenerated rubber production. The regeneration method of the rubber disclosed by the invention comprises the following steps: cleaning waste rubber, airing, cutting the rubber, crushing, and passing through a molecular sieve to obtain rubber powder; uniformly mixing a certain mass of N-methyldiethanolamine and benzene series, then adding calcium carbide, and insulating heat to obtain a desulfurizer; transferring the rubber powder into a reaction kettle, then adding the desulfurizer and a softener drop by drop, uniformly stirring, carrying out a heating reaction step by step, and sheeting to obtain the regenerated rubber. The desulfurized prescription of waste rubber disclosed by the invention is wide in raw material source, low in toxicity, and less in pollution to environment; a desulphurization method is simple in production process, less in energy consumption, thorough in desulphurization effect and high in regenerated rubber quality.
Description
Technical field
The present invention relates to regenerated rubber production technical field, especially a kind of renovation process of rubber.
Background technology
Along with the development of modern society, the increase of rubber-consumer amount, the generation of waste rubber also gets more and more, but waste old has to pass through regeneration can recycle, and regeneration makes waste old turn waste into wealth, and improves its use value.Traditional technique for regenerated rubber flow process is: waste old-washing-coarse breaking-fine crushing-sieve-separated fiber and metal sundries-desulfurization-cleaning-setting-out-drying-kneading-filter glue-freshening-refining-finished product, desulfurization process is wherein then the most important thing of reclaimed rubber production process, and the effect of sulfuration is the key factor affecting reclaimed rubber quality product.
The conventional rubber devulcanisation processes of China comprises oil process, water/oil method etc., and the sweetening agent wherein adopted exists that toxicity is large, price is high mostly, and sweetening effectiveness is poor, and desulfurization degree, less than 60%, causes the physical and chemical index of the reclaimed rubber after desulfurization lower.
Summary of the invention
The object of this invention is to provide a kind of renovation process of rubber, this method can solve the problem of existing rubber regeneration poor effect.
In order to solve the problem, the technical solution used in the present invention is:
The renovation process of rubber of the present invention comprises the following steps:
A, prepare rubber powder: cleaning waste old, dry, cut glue, pulverize, cross 100 order molecular sieves, obtain rubber powder;
B, preparation sweetening agent: the N methyldiethanol amine of certain mass and benzene homologues are mixed, then adds carbide of calcium, be warming up to 35 DEG C ~ 50 DEG C, be incubated 6 minutes ~ 13 minutes, obtain sweetening agent;
C, desulfurization regeneration: proceed in reactor by described rubber powder, then dropwise add described sweetening agent and tenderizer, stir, and control temperature is 110 DEG C ~ 150 DEG C, reacts 10 minutes ~ 30 minutes; Continue to be warming up to 140 DEG C ~ 190 DEG C, react 20 minutes ~ 30 minutes;
D, after step C reacts completely, by products therefrom compressing tablet.
In technique scheme, scheme can also be more specifically: benzene homologues is selected from the one in benzene,toluene,xylene.
Further, tenderizer is lipid acid, coumarone, one or more in Stockholm tar.
Further, N methyldiethanol amine in step B, benzene homologues, the mass ratio of carbide of calcium is 1:1 ~ 3:1 ~ 2.
Further, the mass ratio of sweetening agent described in step C, tenderizer, rubber powder is 1:0.3 ~ 1.5:20 ~ 50.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, the sulfur method of waste old of the present invention adopts N methyldiethanol amine, benzene homologues and carbide of calcium formulated, and its raw material sources are extensive, and low toxicity, environmental pollution is less.
2, the sulfur method production technique of waste old of the present invention is simple, and power consumption is few, and sweetening effectiveness is thorough, and reclaimed rubber quality is higher.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1
The renovation process of the present embodiment rubber comprises the following steps:
A, prepare rubber powder: choose 1 kilogram of waste old, cleaning, dries, cuts glue, pulverizes, and crosses 100 order molecular sieves, obtains 0.93 kilogram of rubber powder;
B, preparation sweetening agent: 15 grams of N methyldiethanol amines and 20 grams of toluene are mixed, then adds 14 grams of carbide of calcium, be warming up to 35 DEG C, be incubated 13 minutes, obtain sweetening agent;
C, desulfurization regeneration: described rubber powder is proceeded in reactor, then dropwise add described sweetening agent and 15 grams of lipid acid, stir, control temperature is 110 DEG C, reacts 30 minutes; Continue to be warming up to 140 DEG C, react 30 minutes;
D, after step C reacts completely, by products therefrom compressing tablet.
Embodiment 2
The renovation process of the present embodiment rubber comprises the following steps:
A, prepare rubber powder: choose 10 kilograms of waste olds, cleaning, dries, cuts glue, pulverizes, and crosses 100 order molecular sieves, obtains 8.9 kilograms of rubber powders;
B, preparation sweetening agent: 55 grams of N methyldiethanol amines and 100 grams of dimethylbenzene are mixed, then adds 145 grams of carbide of calcium, be warming up to 42 DEG C, be incubated 9 minutes, obtain sweetening agent;
C, desulfurization regeneration: described rubber powder is proceeded in reactor, then dropwise add described sweetening agent and 250 grams of coumarones, stir, control temperature is 130 DEG C, reacts 20 minutes; Continue to be warming up to 170 DEG C, react 25 minutes;
D, after step C reacts completely, by products therefrom compressing tablet.
Embodiment 3
The renovation process of the present embodiment rubber comprises the following steps:
A, prepare rubber powder: choose 50 kilograms of waste olds, cleaning, dries, cuts glue, pulverizes, and crosses 100 order molecular sieves, obtains 48.5 kilograms of rubber powders;
B, preparation sweetening agent: 160 grams of N methyldiethanol amines and 480 grams of benzene are mixed, then adds 310 grams of carbide of calcium, be warming up to 50 DEG C, be incubated 6 minutes, obtain sweetening agent;
C, desulfurization regeneration: described rubber powder is proceeded in reactor, then dropwise add described sweetening agent and 500 grams of Stockholm tars, stir, control temperature is 150 DEG C, reacts 10 minutes; Continue to be warming up to 190 DEG C, react 20 minutes;
D, after step C reacts completely, by products therefrom compressing tablet.
In order to verify the physicals of regenerated rubber of the present invention, can measure the physical property index of 3 embodiment products obtained therefroms respectively, measurement result is in table 1:
Table 1 product physicals
From data in table 1, inventive desulfurization effect is better, and the performance of gained reclaimed rubber significantly improves.
Claims (5)
1. a renovation process for rubber, is characterized in that comprising the following steps:
A, prepare rubber powder: cleaning waste old, dry, cut glue, pulverize, cross 100 order molecular sieves, obtain rubber powder;
B, preparation sweetening agent: the N methyldiethanol amine of certain mass and benzene homologues are mixed, then adds carbide of calcium, be warming up to 35 DEG C ~ 50 DEG C, be incubated 6 minutes ~ 13 minutes, obtain sweetening agent;
C, desulfurization regeneration: proceed in reactor by described rubber powder, then dropwise add described sweetening agent and tenderizer, stir, and control temperature is 110 DEG C ~ 150 DEG C, reacts 10 minutes ~ 30 minutes; Continue to be warming up to 140 DEG C ~ 190 DEG C, react 20 minutes ~ 30 minutes;
D, after step C reacts completely, by products therefrom compressing tablet.
2. the renovation process of rubber according to claim 1, is characterized in that described benzene homologues is selected from the one in benzene,toluene,xylene.
3. the renovation process of rubber according to claim 1, is characterized in that described tenderizer is lipid acid, coumarone, one or more in Stockholm tar.
4. the renovation process of rubber according to claim 1, is characterized in that N methyldiethanol amine in step B, benzene homologues, and the mass ratio of carbide of calcium is 1:1 ~ 3:1 ~ 2.
5. the renovation process of rubber according to claim 1, is characterized in that the mass ratio of sweetening agent described in step C, tenderizer, rubber powder is 1:0.3 ~ 1.5:20 ~ 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049013.2A CN104610570A (en) | 2015-01-30 | 2015-01-30 | Regeneration method of rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049013.2A CN104610570A (en) | 2015-01-30 | 2015-01-30 | Regeneration method of rubber |
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| CN104610570A true CN104610570A (en) | 2015-05-13 |
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| CN201510049013.2A Pending CN104610570A (en) | 2015-01-30 | 2015-01-30 | Regeneration method of rubber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750515A (en) * | 2016-12-09 | 2017-05-31 | 俞杨许 | A kind of rubber regeneration method |
| CN108585688A (en) * | 2018-05-23 | 2018-09-28 | 赵杰 | A method of paveio(u)r is prepared based on dead meal |
| CN113024886A (en) * | 2021-03-26 | 2021-06-25 | 国网河南省电力公司方城县供电公司 | High-performance reclaimed rubber and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280077A (en) * | 2008-05-30 | 2008-10-08 | 广州市再生资源利用研究所 | Regenerative vulcanized butadiene nitrile rubber and preparation thereof |
| CN101759869A (en) * | 2009-12-24 | 2010-06-30 | 朝阳好优达橡塑助剂有限公司 | Waste vulcanized rubber reclaiming agent composition |
| CN102975310A (en) * | 2012-11-14 | 2013-03-20 | 上海华亿通实业有限公司 | Waste rubber particle ultrafine grinding production method |
-
2015
- 2015-01-30 CN CN201510049013.2A patent/CN104610570A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280077A (en) * | 2008-05-30 | 2008-10-08 | 广州市再生资源利用研究所 | Regenerative vulcanized butadiene nitrile rubber and preparation thereof |
| CN101759869A (en) * | 2009-12-24 | 2010-06-30 | 朝阳好优达橡塑助剂有限公司 | Waste vulcanized rubber reclaiming agent composition |
| CN102975310A (en) * | 2012-11-14 | 2013-03-20 | 上海华亿通实业有限公司 | Waste rubber particle ultrafine grinding production method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750515A (en) * | 2016-12-09 | 2017-05-31 | 俞杨许 | A kind of rubber regeneration method |
| CN108585688A (en) * | 2018-05-23 | 2018-09-28 | 赵杰 | A method of paveio(u)r is prepared based on dead meal |
| CN113024886A (en) * | 2021-03-26 | 2021-06-25 | 国网河南省电力公司方城县供电公司 | High-performance reclaimed rubber and preparation method thereof |
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Application publication date: 20150513 |
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