Retrieving aggregates and powdery mineral material from demolition waste
US10029951B2 · kind B2 · utility
4Cited by
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27Claims
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Key dates
| Filing date | Mar 26, 2014 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for retrieving aggregates and/or powdery mineral material from a source material comprising hardened mineral binder and aggregates, in particular a waste or demolition material, comprises the steps of: a) treating the source material in a disintegration process and (b) separation of the treated source material at a predefined cut-off grain size in order to retrieve treated aggregates with a grain size of at least the predefined cut-off grain size and/or in order to retrieve powdery mineral material with a grain size below the predefined cut-off grain size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.