Solvent composition prepared from waste oil and method of preparing the same
US11814589B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 20, 2022 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Apr 20, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a technology to convert an oil having a high content of Cl into a solvent. Impurities such as Cl, S, N, and metals are removed from an oil having a boiling point of 340° C. or lower in a waste oil having a high content of Cl, and hydrogenation is carried out to recover an oil, and the oil may be applied as a solvent. Separation by boiling points to meet the properties of the solvent product is performed, a solid acid material and an oil having a high Cl content are mixed, impurities are removed by a heat treatment at a high temperature, and hydrogenation is carried out with a metal oxide catalyst, thereby manufacturing a solvent product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.