Method for separating mineral impurities from calcium carbonate-containing rocks by X-ray sorting
US8841571B2 · kind B2 · utility
7Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2013 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07C5/366
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a method for separating mineral impurities from calcium carbonate-containing rocks by comminuting the calcium carbonate-containing rocks to a particle size in the range of from 1 mm to 250 mm, separating the calcium carbonate particles by means of a dual energy X-ray transmission sorting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.