Process for the conversion of pitch into crystalloidal pitch
US4042486A · kind A · utility
20Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1976 |
| Grant date | Aug 16, 1977 |
| Priority date | — |
| Expiry date | Mar 10, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/528
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Crystalloidal pitch is obtained by subjecting solid pitch particles measuring not more than 5 mm in cross-sectional equivalent diameter to a treatment to prevent cohesion and subsequently bringing the cohesion-proof solid pitch particles into contact with a non-oxidative gas at temperatures of from 350.degree. C to 550.degree. C while maintaining a gas flow rate sufficient to provide a suspension wherein the gas constitutes at least 30% by volume. The crystalloid pitch is useful as a precursor for various carbon products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.