Process, for the desulfurization of coal
US4886522A · kind A · utility
5Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1988 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Mar 3, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A desulfurization process for coal ore for the removal of both organic and inorganic (pyritic) sulfurs in coal ore comprises a series of steps including the pulverizing of coal ore; mixing coal particulates with separation reagents, a catalyst and a vehicle; separating the recyclable chemicals and abstracted sulfurs through a select membrane; conditioning the particulates for flotation and sedimentation; clarifying the settleable ash and inorganic sulfurs and the floatable coal from the vehicle; and dewatering the collected coal particulates. The process also provides for regeneration of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.