Zinc-modified composite polybasic salt, process for producing the same, and use
US6835320B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Apr 4, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composite metal polybasic salt containing a trivalent metal, zinc metal and a divalent metal as metal components and having a novel crystal structure, and a method of preparing the same. The invention further deals with a composite metal polybasic salt which has anion-exchanging property, which by itself is useful as an anion-exchanger, capable of introducing anions suited for the use upon anion-exchange, and finds a wide range of applications, and a method of preparing the same. The composite metal polybasic salt has a particular chemical composition and X-ray diffraction peaks, exhibiting peaks at 2&thgr;=2 to 15°, 2&thgr;=19.5 to 24° and 2&thgr;=33 to 50°, and a single peak at 2&thgr;=60 to 64° in the X-ray diffraction (Cu-&agr;).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.