Method for limiting the emission of dust from catalyst grains
US10369560B2 · kind B2 · utility
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4References
20Claims
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Key dates
| Filing date | Jun 24, 2015 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jun 24, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a method for limiting the emission of dust from catalyst grains. Said method comprises the following two consecutive steps: a first step of performing a heat treatment of the catalyst grains at a temperature no lower than 100° C., followed by a second step of coating the surface of the catalyst grains by placing same in contact with one or more coating materials having a melting point T no lower than 45° C. and which are injected in a solid state, said second step being carried out with no further addition of heat, at a temperature of T−60° C. to T−1° C., while remaining no lower than 40° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.