Process for producing pig iron and cement clinker
US5501721A · kind A · utility
4Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Sep 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/50
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for the preparation of pig iron and cement clinker in a fusion gasifier (3) in which the charge is at least partly preheated and possibly deacidified and subjected to preliminary reduction or is used in the form of scrap, coal is blown into a fluidized bed (7) and gasified with the reduction of the charge and pig iron (8) and slag (9) are tapped off in liquid form, the procedure is such that the lime charge introduced into the fusion gasifier (3), possibly together with a portion of an iron ore, is preheated in a preheating shaft (1) and calcined and charged according to the clinker composition required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.