Process for liquefying tire rubber and product thereof
AssigneeNeste/Wright Asphalt Products, Co.
InventorTheodore P. Flanigan
Life of this patent
Estimating the term…
Abstract
A process for preparing a homogenous asphalt composition including the steps of introducing asphalt medium into a reactor vessel; introducing whole tire rubber granules into the asphalt medium to form a mixture of the asphalt medium and the granular whole tire rubber; circulating a portion the mixture into a bottom portion of the reactor vessel through jet spray nozzles; and recirculating the mixture at 500.degree. F. through the vessel until the whole tire rubber is completely integrated into the asphalt medium and a stable, homogeneous asphalt composition is formed. The incorporated asphalt composition preferably includes about 10-20% whole tire rubber and about 80-90% asphalt medium.
Claims9
A process for preparing a fully incorporated asphalt composition comprising:
- introducing asphalt medium into a reactor vessel;
- introducing whole tire rubber granules into the asphalt medium to form a mixture of the asphalt medium and the whole tire rubber granules;
- circulating part of the mixture from a middle portion of the reactor vessel into a bottom portion of the reactor vessel through jet spray nozzles until the whole tire rubber granules are completely integrated into the asphalt medium;
- and
- forming a stable, fully incorporated asphalt composition.
A process for preparing a fully incorporated asphalt composition comprising:
- introducing asphalt medium into a reactor vessel;
- introducing whole tire rubber granules into the asphalt medium to form a mixture of 10-20% whole tire rubber granules and 80-90% asphalt medium;
- circulating part of the mixture at a temperature of about 485.degree.-510.degree. F. from a middle portion of the reactor vessel into a bottom portion of the reactor vessel through two jet spray nozzles which discharge the mixture in opposite directions until the whole tire rubber granules are completely integrated into the asphalt medium;
- and
- forming a stable, fully incorporated asphalt composition.
Dependencies are inferred from the claim text.