发明名称 |
METHOD AND APPARATUS FOR REGENERATING VULCANIZED RUBBER |
摘要 |
There are disclosed a regenerated rubber, a method and apparatus for obtaining regenerated rubbers from vulcanized crumb rubber, such as rubber from scrap. The apparatus is a thermokinetic mixer having the particularity to have an air tight stationary chamber with inner non-uniform surface. The method comprises the steps of raising the speed of the rotor shaft in order to increase a temperature of a mixture made of vulcanized crumb rubber and a lubricant, such as oil, until a devulcanizing temperature is reached; and reducing the temperature of the mixture to a lower temperature during a second period of time. The method of the invention is environmentally friendly or "green", since the regeneration method does not use chemicals, includes a shorter period of treatment at higher temperature avoiding the risks of rubber cracking and spontaneous combustion, and further allowing mass-production of regenerated rubber with lower energy consumption. |
申请公布号 |
WO2011113148(A1) |
申请公布日期 |
2011.09.22 |
申请号 |
WO2011CA00285 |
申请日期 |
2011.03.15 |
申请人 |
4463251 CANADA INC.;MARTEL, SYLVAIN;MURPHY, STEPHEN;LEGAULT, PATRICK |
发明人 |
MARTEL, SYLVAIN;MURPHY, STEPHEN;LEGAULT, PATRICK |
分类号 |
C08C19/08;B01F7/02;C08J11/12 |
主分类号 |
C08C19/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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