Method of making rod-shaped particles for use as proppant and anti-flowback additive
US9896618B2 · kind B2 · utility
4Cited by
10References
17Claims
0Family size
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Key dates
| Filing date | Nov 19, 2015 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Nov 19, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/94
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for forming rod-shaped particles includes inducing flow of a slurry of particles and a reactant through one or more orifices and into a coagulation solution, wherein the slurry exiting the one or more orifices is a continuous uninterrupted stream, coagulating the reactant in the coagulation solution to form stabilized rods, drying the stabilized rods and reducing a length of the dried stabilized rods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.