Dispersible rare earth compositions and colloidal suspensions/catalysts comprised thereof
US6090743A · kind A · utility
12Cited by
5References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1995 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | May 30, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Colloidal dispersions of finely divided particulates, well suited for the production of catalysts for the catalytic conversion of exhaust gases emanating from internal combustion engines, notably vehicular exhaust gases, comprise at least one rare earth compound and, optionally, at least one compound of at least one other element selected from among those of groups IVa, VIIa, VIII, Ib, IIb, IIIb and IVb of the Periodic Table, said particulates being at least 50% dispersible in water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.