Coated pitch prill
US4107382A · kind A · utility
7Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1976 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Sep 9, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31815
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for forming coated pitch prills by mixing pitch prills with finely divided carbonaceous material and agitating the prills and carbonaceous material until a layer of carbonaceous material adherently bonded to the pitch prill is formed. Preferably the pitch prill is a substantially spherical particle having an average diameter between about 1 and about 5 millimeters. The finely divided carbonaceous material is preferably carbon black.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.