CN1268672C - Regeneration method for waste butylchloride rubber - Google Patents
Regeneration method for waste butylchloride rubber Download PDFInfo
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- CN1268672C CN1268672C CNB021141401A CN02114140A CN1268672C CN 1268672 C CN1268672 C CN 1268672C CN B021141401 A CNB021141401 A CN B021141401A CN 02114140 A CN02114140 A CN 02114140A CN 1268672 C CN1268672 C CN 1268672C
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- regeneration
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
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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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- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention introduces a regeneration method for waste butylchloride rubber, which belongs to the class of a rubber regeneration treatment technology. In the method, the regeneration of waste butylchloride rubber is completed by five steps of coarse selection and pulverization by classification, the primary regeneration softening of tight milling, the regeneration softening of refining desulphurization, remixing rubber filtration and refining via a traditional rubber production device. The present invention is characterized in that in the two-stage regeneration softening process, 1 to 2 % of pentachlorothiophenol or ditolyl-thiophenol, 0.7 to 1% of diethyl-dithiocarbamic acid, 3% of petroleum resin and 0.3 to 0.5% of dicumyl peroxide, 1 to 2% of magnesium peroxide or zinc peroxide or cadmium peroxide, 5 to 8% of chain hydrocarbon oil or alkane oil and 2% of petroleum resin are used as a regeneration agent and a softening agent for completing two times of regeneration softening and the desulphurization regeneration softening of butylchloride rubber. The regeneration method has the advantages of simple technological line, little investment for devices and ideal quality of products.
Description
Technical field
The present invention relates to a kind of chlorination fourth rubber scrap rubber renovation process, belong to rubber regeneration treatment process class.
Background technology
Chlorinated butyl rubber is a kind of high molecular polymer of isoprene-isobutylene rubber after chlorination.It has also solved the shortcoming of the slow and viscosity difference of vulcanization rate that isoprene-isobutylene rubber exists except all characteristics with isoprene-isobutylene rubber, can with various dience rubbers also with carrying out covulcanization; Its heat-resisting, weather-resistant performance also are further strengthened simultaneously, thereby make the application of chlorinated butyl rubber more extensive, as are used for the industrial goods such as sulfuration plug, curing bag, the inner tube of a tyre and pharmaceutical pack of tire plant.Along with the increase year by year of rubber consumption, the waste after consequent industrial production waste material and product use is also more and more, as not carrying out processing and utilizing effectively, not only causes environmental pollution, also will cause the waste of these physical resources.
The existing at home mature technology of natural rubber scrap rubber renovation process, and widespread use in China already; The regeneration techniques of butyl vulcanized rubber scrap rubber also sees in some open source literatures, but does not see the report of regeneration method for waste butylchloride rubber so far.
The renovation process of at present known more advanced used vulcanized rubber-isobutylene is to adopt the radio isotope cobalt---60, caesium---137 source of radiation degraded regeneration used vulcanized rubber-isobutylene.Analyze according to the inventor: though this kind method also can be used for the manipulation of regeneration of chlorinated butyl rubber, use aforesaid method and have following defective: one, directions of rays is uncontrollable, and capacity usage ratio is low; Two, owing to influenced by radioisotopic natural decay, source of radiation intensity constantly decays in the use, easily causes the instability of regeneration waste butyl rubber quality; Three, owing to will keep setting production output, need often to replenish or change source of radiation, and then can produce transfer and storage problem scrapping source of radiation; Any point mishap on transfer or storage problem all radiocontamination and leakage problem can occur, does not help suitability for industrialized production.
Summary of the invention:
The regeneration method for waste butylchloride rubber that the present invention relates to its objective is to waste butylchloride rubber seeks that a kind of less investment, technology are simple, the regeneration treating method of steady quality, non-secondary pollution.
This regeneration method for waste butylchloride rubber, by classification roughly select pulverizing, the elementary regeneration of thin-pass softening, refine that desulfurization regeneration is softening, heat refining filter glue and refining five processes finish, it is characterized in that:
A, the elementary regeneration softening stress-displacement stage of described thin-pass, when with milling train the scrap rubber material being carried out the thin-pass roughing on one side, press the pentachlorothiophenol of scrap rubber amount 1-2% weight, the zinc diethyldithiocarbamate of 0.7-1% weight, the petroleum resin of 3% weight on one side, join in regular turn in the scrap rubber material that carries out thin-pass;
B, described refinement desulfurization regeneration softening stress-displacement stage, be with the later chlorinated butyl scrap rubber of per 100 weight part roughing, the petroleum resin that mix chain hydrocarbon ils, 2% weight of Magnesium peroxide, the 5-8% weight of peroxide diisopropylbenzene(DIPB), the 1-2% weight of 0.3-0.5% weight are inserted the closed refiner and are carried out airtight refinement.
What the elementary regeneration softening stress-displacement stage of described thin-pass was adopted is pentachlorothiophenol or xylenethiol.
What described refinement desulfurization regeneration softening stress-displacement stage mixed is Magnesium peroxide or cadmium peroxide.
The petroleum resin that adopt in above-mentioned two technological processs are paraffin.
The regeneration method for waste butylchloride rubber that provides according to technique scheme is compared with disclosed waste rubber renovation process at present, and its advantage is as follows:
1, owing to adopt traditional process equipment, realizes that under normal temperature, normality regeneration is softening, so saved investment;
2, technological process is simple, and the classes of compounds of interpolation is the material of nontoxic pollution-free, thereby can not produce secondary pollution.
Embodiment
Using technology provided by the invention, mainly is tailing and the chlorinated butyl rubber goods reclaimed materials of handling in the chlorinated butyl rubber production of articles process.
Its actual manipulation of regeneration has following five technological processs to finish.
One, pulverizing is roughly selected in classification
According to the source of the useless chlorinated butyl rubber goods that reclaim, classify with curing bag, glue or sundries class as medical rubber plug, tire, remove after the foreign material, should pulverize slightly so that unification enters the thin-pass roughing for big part.
Two, the elementary regeneration of thin-pass is softening
Both will roughly select the reclaimed materials of pulverizing through classification, and carried out the thin-pass roughing on the rubber milling train, should be controlled at the cylinder gap below the 0.8m/m this moment, crosses and roll 6-8 time.Importantly cross and roll across in the journey, on original equipment, progressively add the pentachlorothiophenol (or xylenethiol) of 1-2% by the sizing material of 100 weight parts; The zinc diethyldithiocarbamate of 0.7-1% and 3% petroleum resin.It should be noted that especially in this machining process: the softening additive of above-mentioned three kinds of regeneration is to add to respectively in the reclaiming process process successively.By after 8 thin-passes repeatedly, promptly finish this procedure with triangle bag mixing.
Three, refining desulfurization regeneration softens
Be about to through the chlorinated butyl rubber after the aforementioned art breading, the sizing material by per 100 weight parts mixes 0.3～0.5% dicumyl peroxide, 1-2% Magnesium peroxide (or cadmium peroxide), 5-8% chain hydrocarbon ils; The proportioning of 2% petroleum resin (paraffin) is inserted the closed refiner and is carried out the desulfurization refinement; Wait to refine about 10 minutes, the binder removal compressing tablet entered next process when built-in temperature rose to 135～140 ℃.
Four, heat refining filter glue
Soon stripping enters filter glue on the direct warm-up mill of the sizing material behind the compressing tablet, and the collodion silk temperature out should be controlled at below 120 ℃.
Five, refining
Be about to collodion silk after filter glue in mill, the gap thin-pass by 1～1.5m/m 5-8 time puts that sheet promptly gets the regenerated chlorinated butyl rubber under the thick 3-5mm tumbling.
Embodiment 1 (by weight)
1. choose medicinal scrap rubber plug 100 weight parts of chlorinated butyl;
2. cross with pentachlorothiophenol (perhaps xylenethiol) back that adds 1.5% weight part after the mill 0.8 gap thin-pass 8 times and roll once; Roll once excessively after adding weight part 1% diethyl-dithio chloro zinc formate again; Last add again 3% weight part petroleum resin---the later mistake of paraffin is rolled three times, and through three triangle bag mixings.
3. above-mentioned sizing material is inserted the closed refiner, pressurize after the 1 minute dicumyl peroxide that drops into 0.4% weight part and Magnesium peroxide (also can be zinc peroxide or cadmium peroxide) the back pressurization of 1.5% weight part refined 2 minutes, the chain hydrocarbon ils that adds 6% weight part at last, and petroleum resin---the paraffin of 2% weight part, pressurization was refined seven minutes, binder removal compressing tablet when looking built-in temperature and reaching 135-140 ℃.
4. will be behind the chlorinated butyl reclaimed rubber heat refining of desulfurization stripping send into rubber strainer filter glue, and less than 130 ℃ the time binder removal.
5. with the thin-pass 6 times in mill of glue after the above-mentioned filter, put thick gap 3-5mm, under the tumbling sheet the alleged chlorinated butyl rubber reclaimed rubber of the present invention.
Embodiment 2 (by weight)
1. select chlorinated butyl cycle tube reclaimed materials 100 weight parts that give up for use
2. cross with pentachlorothiophenol (perhaps xylenethiol) back that adds 1.5% weight part after the mill 0.8 gap thin-pass 8 times and roll once; Roll once excessively after adding weight part 1% diethyl-dithio chloro zinc formate again; Last add again 3% weight part petroleum resin---the later mistake of paraffin is rolled three times, and through three triangle bag mixings.
3. above-mentioned sizing material is inserted the closed refiner, pressurize after the 1 minute dicumyl peroxide that drops into 0.4% weight part and Magnesium peroxide (also can be zinc peroxide or cadmium peroxide) the back pressurization of 1.5% weight part refined 2 minutes, the chain hydrocarbon ils that adds 6% weight part at last, and petroleum resin---the paraffin of 2% weight part, pressurization was refined seven minutes, binder removal compressing tablet when looking built-in temperature and reaching 135-140 ℃.
4. will be behind the chlorinated butyl reclaimed rubber heat refining of desulfurization stripping send into rubber strainer filter glue, and less than 130 ℃ the time binder removal.
5. with the thin-pass 6 times in mill of glue after the above-mentioned filter, put thick gap 3-5mm, under the tumbling sheet the alleged chlorinated butyl rubber reclaimed rubber of the present invention.
Embodiment 3 (with weight part)
1. select chlorinated butyl rafter glue sundries 100 weight parts for use, pulverize slightly and use it.
2. cross with pentachlorothiophenol (perhaps xylenethiol) back that adds 1.5% weight part after the mill 0.8 gap thin-pass 8 times and roll once; Roll once excessively after adding weight part 1% diethyl-dithio chloro zinc formate again; Last add again 3% weight part petroleum resin---the later mistake of paraffin is rolled three times, and through three triangle bag mixings.
3. above-mentioned sizing material is inserted the closed refiner, pressurize after the 1 minute dicumyl peroxide that drops into 0.4% weight part and Magnesium peroxide (also can be zinc peroxide or cadmium peroxide) the back pressurization of 1.5% weight part refined 2 minutes, the chain hydrocarbon ils that adds 6% weight part at last, and petroleum resin---the paraffin of 2% weight part, pressurization was refined seven minutes, binder removal compressing tablet when looking built-in temperature and reaching 135-140 ℃.
4. will be behind the chlorinated butyl reclaimed rubber heat refining of desulfurization stripping send into rubber strainer filter glue, and less than 130 ℃ the time binder removal.
5. with the thin-pass 6 times in mill of glue after the above-mentioned filter, put thick gap 3-5mm, under the tumbling sheet the alleged chlorinated butyl rubber reclaimed rubber of the present invention.
Chlorinated butyl reclaimed rubber thing physicals of the present invention such as following table:
| Project | Example 1 regenerating acid | Example 2 regenerating acids |
| Mooney viscosity ML100ML1+8 | ?87.7 | ?86.9 |
| Hardness (Shao A) | ?52 | ?54 |
| Tensile strength at yield MPa/cm 2 | ?4.78 | ?5.96 |
| Tensile yield % | ?620 | ?610 |
| (80 ℃ * 168h) hardness (Shao A) of the empty aging backs of heat | ?59 | ?60 |
| Tensile strength at yield MPa/cm 2 | ?3.9 | ?5.09 |
| Tensile yield % | ?520 | ?530 |
Claims (3)
1, a kind of regeneration method for waste butylchloride rubber, by classification roughly select pulverizing, the elementary regeneration of thin-pass softening, refine that desulfurization regeneration is softening, heat refining filter glue and refining five processes finish, it is characterized in that:
A, the elementary regeneration softening stress-displacement stage of described thin-pass, when with milling train the scrap rubber material being carried out the thin-pass roughing on one side, press on one side the pentachlorothiophenol of scrap rubber amount 1-2% weight or xylenethiol, the zinc diethyldithiocarbamate of 0.7-1% weight, the petroleum resin of 3% weight, join in regular turn in the waste material that carries out thin-pass;
B, described refinement desulfurization regeneration softening stress-displacement stage, be per 100 weight parts chlorinated butyl scrap rubbers that roughing is later, the petroleum resin that mix chain hydrocarbon ils, 2% weight of the Magnesium peroxide of peroxide diisopropylbenzene(DIPB), 1-2% weight of 0.3-0.5% weight or cadmium peroxide, 5-8% weight are inserted the closed refiner and are carried out airtight refinement.
2, regeneration method for waste butylchloride rubber as claimed in claim 1, what it is characterized in that the elementary regeneration softening stress-displacement stage of described thin-pass adopted is pentachlorothiophenol.
3, the described regeneration method for waste butylchloride rubber of claim 1, what it is characterized in that described refinement desulfurization regeneration softening stress-displacement stage mixes is Magnesium peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021141401A CN1268672C (en) | 2002-05-19 | 2002-05-19 | Regeneration method for waste butylchloride rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021141401A CN1268672C (en) | 2002-05-19 | 2002-05-19 | Regeneration method for waste butylchloride rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1385461A CN1385461A (en) | 2002-12-18 |
| CN1268672C true CN1268672C (en) | 2006-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021141401A Expired - Fee Related CN1268672C (en) | 2002-05-19 | 2002-05-19 | Regeneration method for waste butylchloride rubber |
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| CN (1) | CN1268672C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2699098C1 (en) * | 2018-12-11 | 2019-09-03 | Владимир Владимирович Евсейченко | Rubber composition and method of its production |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307153B (en) * | 2008-07-14 | 2010-09-22 | 金轮橡胶（海门）有限公司 | Method for producing chlorobutyl reclaimed rubber |
| US8673989B2 (en) * | 2011-11-25 | 2014-03-18 | New Rubber Technologies Holdings, Inc. | Method of devulcanizing a cross-linked elastomeric material |
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2002
- 2002-05-19 CN CNB021141401A patent/CN1268672C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2699098C1 (en) * | 2018-12-11 | 2019-09-03 | Владимир Владимирович Евсейченко | Rubber composition and method of its production |
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| Publication number | Publication date |
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| CN1385461A (en) | 2002-12-18 |
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| ASS | Succession or assignment of patent right |
Owner name: ZHOU YILING Free format text: FORMER OWNER: ZHOU BIN |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20040709 Address after: 412007 science and technology building, Hexi Changjiang North Road, Zhuzhou, Hunan Applicant after: Zhou Yiling Co-applicant after: Deng Zhihao Address before: 412007 science and technology building, Hexi Changjiang North Road, Zhuzhou, Hunan Applicant before: Zhou Bin Co-applicant before: Deng Zhihao |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ma'anshan Ruisheng Industrial Trade Co., Ltd. Assignor: Zhou Yiling|Deng Zhihao Contract fulfillment period: 2007.9.10 to 2014.9.10 contract change Contract record no.: 2008340000007 Denomination of invention: Regeneration method for waste butylchloride rubber Granted publication date: 20060809 License type: Exclusive license Record date: 20081010 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.9.10 TO 2014.9.10; CHANGE OF CONTRACT Name of requester: MAANSHAN RUISHENG INDUSTRY AND TRADE CO., LTD. Effective date: 20081010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060809 Termination date: 20150519 |
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| EXPY | Termination of patent right or utility model |