Method and apparatus for in-line production of milk of lime into an in-line production process of PCC arranged in connection with a fibrous web machine
US9181103B2 · kind B2 · utility
2Cited by
6References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 9, 2011 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | May 2, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2290/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and apparatus for in-line production of milk of lime into an in-line production process of PCC arranged in connection with a fibrous web machine. In the solution, lime is slaked in a slaking apparatus at a temperature of at least 80 degrees. The produced milk of lime is cleaned by separating excessively large calcium hydroxide particles immediately prior to introducing the milk of lime into the production process of PCC. The milk of lime is introduced into the in-line production process of PCC located in the production line of the end or intermediate product of the fibrous web machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.