Processes for producing deashed pitch
US10041004B2 · kind B2 · utility
5Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2014 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Apr 23, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G67/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for de-ashing pitch. The pitch from a slurry hydrocracking process is mixed with a solvent. The mixture is separated into solvent and soluble materials and insoluble materials. The insoluble materials can be dried to recover solvent which may be recycled. The solvent and soluble materials are separated. The solvent may be recovered and recycled. Hi-Sol 15 may be the solvent. Additionally, CSO may be the solvent and a portion thereof may be used with the de-ashed pitch to make an asphalt binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.