Clay preparation
US4251265A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Jul 27, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B1/2406
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There is described a novel process for pelletizing clay containing aluminumous ore comprising the steps of: PA0 a. crushing the clay to within an appropriate size range; PA0 b. blending the crushed clay with water to achieve a closely defined moisture content; PA0 c. pelletizing the clay in a suitable apparatus to provide clay pellets of predetermined size; PA0 d. rolling the pellets for a period of time sufficient to round the edges, corners, etc. and to produce a relatively hard, abrasive resistant surface; and PA0 e. drying and calcining the pellets at a temperature within the range of from about 1100.degree. to about 1500.degree. F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.