Proppant coating for heavy metal recovery
US10752830B2 · kind B2 · utility
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13References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 27, 2016 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Jun 27, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A coated proppant includes a solid core proppant particle and a heavy metal recovery coating, including heavy metal recovery crystals embedded within a polymer resin matrix. A process for the manufacture of a coated proppant includes providing a solid core proppant particle, and forming on the solid core proppant particle, a heavy metal recovery coating including heavy metal recovery crystals embedded within a polymer resin matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.