Patent · US Active

Process for producing a pulp

US10648129B2 · kind B2 · utility

0Cited by

3References

12Claims

0Family size

Assignee

LENZING AKTIENGESELLSCHAFT · AT

Inventors

Herbert Sixta · Lenzing, AT
Andrea Promberger · Vöcklabruck, AT
Andrea Borgards · Waidhofen an der Thaya, AT
Roland Möslinger · Pettenfirst, AT

Key dates

Filing date	Dec 28, 2017
Grant date	May 12, 2020
Priority date	—
Expiry date	Dec 28, 2037

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21C3/02
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a process for producing a dissolving pulp from a cellulosic starting material using the kraft process, comprising the step of cooking the starting material with a cooking liquor. The process according to the invention characterized in that the starting material is exposed to a steam treatment prior to cooking and that the pulp obtained by cooking is subjected to cold caustic extraction (CCE) in the course of further processing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.