Process for cleaning articles with an aqueous solution of terpene and recycle water after separation
US5271773A · kind A · utility
21Cited by
41References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Jun 10, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a composition and process for cleaning articles contaminated with water insoluble contaminants. The process allows for efficient recycling of components in the system. The wash solution effectively cleans water insoluble contaminants and, upon settling, quickly releases contaminants from the wash solution. In this manner, the wash solution and components of it can be readily recycled. The composition of the present invention includes between about 1.86 volume percent and about 37.2 volume percent terpene, preferably d-limonene, and between about 0.14 volume percent and about 2.8 volume percent surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.