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1. (WO2018087658) METHOD FOR PRODUCING PURIFIED CELLULOSE FROM FLAX FIBRE

Pub. No.:    WO/2018/087658    International Application No.:    PCT/IB2017/056948
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Wed Nov 08 00:59:59 CET 2017
IPC: D21C 1/02
D21C 9/10
D21C 9/16
D01C 1/02
D21H 11/12
Applicants: NABATOV, Sergey
НАБАТОВ, Сергей
Inventors: NABATOV, Sergey
НАБАТОВ, Сергей
Title: METHOD FOR PRODUCING PURIFIED CELLULOSE FROM FLAX FIBRE
Abstract:
The invention relates to the chemical industry, and more particularly to technology for producing purified cellulose from flax fibre. The essence of the invention is that during the purification of flax fibres using a chemical method, liquid treatment to break down related impurities is carried out using hot water at a constant temperature of 98-100°С for 30 minutes, wherein the temperature of the water and the silica modulus are kept constant during oxidative treatment and cooking. Multiple treatment stages and the use of acids is avoided due to a higher content of hydrogen peroxide in the solutions used for oxidative treatment and cooking, which in turn results in an increase in the productivity of equipment and a decrease in the amount of harmful production waste in the form of products of treating flax fibre with a mineral acid solution. This is the technical result of the invention.