Method of separating oil-soluble pigment and water-soluble pigment from natural material using aerogels and an apparatus therefor
US10196522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D9/0004
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of separating oil-soluble pigment and water-soluble pigment from natural material using aerogels characterized in comprising the steps of: (A) immersing a natural material in a leaching solvent to extract a pigment; (B) mixing the leaching solution from which pigment is extracted in step (A) with aerogel to adsorb oil-soluble pigment to aerogels; (C) separating oil-soluble pigment adsorbed on the surface of aerogel in step (B); (D) drying and concentrating the pigment separated in step (C), enhancing a method of separating from natural material the initial substance for pharmaceuticals, food, cosmetics, etc. facilitating a safer and more efficient production process compared to the conventional separation method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.