Method for the calcination of calcium carbonate bearing materials
US5919038A · kind A · utility
9Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 29, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Feb 29, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B15/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for heat treatment of fine calcium carbonate bearing material comprising preheating fine material containing a coarse and a fine fraction. The preheated material is delivered into a fluidized bed calcining means wherein the coarse fraction is calcined and the fine fraction is delivered by process air to an adjacent vertically arranged gas flash calciner furnace in which it is calcined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.