Low lead aviation gasoline blend
US6451075B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1999 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Dec 9, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/306
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A particularly useful low lead aviation gasoline fuel blend complies with all requirements of ASTM D 910 and includes 67.0 volume % isooctane, 18.0 volume % xylene, 12.0 volume % isopentane, 3.0 volume % isobutane and 0.47 mL/gal of tetraethyl lead. Another useful low lead aviation gasoline fuel blend which complies with all requirements of ASTM D 910 except for oxygenate content includes 60.0 volume % isooctane, 15.0 volume % xylene, 14.0 volume % methyl t-butyl ether, 8.0 volume % isopentane, 3.0 volume % isobutane and 0.2 mL/gal of tetraethyl lead. The isooctane used in either case is a purified isooctane prepared either by fractionating a crude DIB material and hydrogenating the fractionated material or hydrogenating the crude DIB material and fractionating the hydrogenated material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.