Three-vessel treatment system
US4123318A · kind A · utility
15Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1976 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Jun 29, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for the treatment of cellulosic fiber material with maximum efficiency while minimizing capital costs. Fiber material entrained in digesting liquid is impregnated with the liquid in an impregnation vessel, sluiced to a separate digesting vessel, and from the digesting vessel sluiced to one or more separate washing vessels without a significant reduction in pressure. Countercurrent washing is effected in the washing vessel(s). Digesting liquid withdrawn from the digesting vessel is heated in a transfer line back to the impregnation vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.