Lightweight aggregate and process for its production
US5759253A · kind A · utility
0Cited by
15References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1996 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Dec 4, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lightweight aggregate and a process and apparatus by which FCC, petroleum equilibrium fluid-cracking catalyst, a by-product of the oil refinery industry, can be added to the feedstock materials fed into the feed end of a rotary lightweight aggregate kiln or blown into the discharge end of the same kiln by insufflation, or by a combination of both techniques, to form the lightweight aggregate utilizing the FCC as received without further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.