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1. WO2022003237 - A METHOD OF PURIFYING RAW METHANOL

Publication Number WO/2022/003237
Publication Date 06.01.2022
International Application No. PCT/FI2021/050464
International Filing Date 17.06.2021
IPC
C07C 29/80 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Stabilisation; Use of additives
76by physical treatment
80by distillation
C07C 29/94 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Stabilisation; Use of additives
94Use of additives, e.g. for stabilisation
D21C 3/00 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3Pulping cellulose-containing materials
C07C 31/04 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
31Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
02Monohydroxylic acyclic alcohols
04Methanol
CPC
C07C 2602/42
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
2602Systems containing two condensed rings
36the rings having more than two atoms in common
42the bicyclo ring system containing seven carbon atoms
C07C 29/80
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Use of additives, e.g. for stabilisation
76by physical treatment
80by distillation
C07C 29/94
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Use of additives, e.g. for stabilisation
94Use of additives, e.g. for stabilisation
Applicants
  • ANDRITZ OY [FI]/[FI]
Inventors
  • OLSSON, Johan
Agents
  • ESPATENT OY
Priority Data
2020569730.06.2020FI
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) A METHOD OF PURIFYING RAW METHANOL
(FR) PROCÉDÉ DE PURIFICATION DE MÉTHANOL BRUT
Abstract
(EN) The present disclosure provides a method of purifying raw methanol obtained in chemical pulping, wherein heavy oil is admixed with the raw methanol to prevent precipitation, and the methanol mixture is distilled or evaporated to recover the methanol.
(FR) La présente divulgation concerne un procédé de purification de méthanol brut obtenu dans une réduction en pâte chimique, dans lequel du pétrole lourd est mélangé avec le méthanol brut pour empêcher la précipitation, et le mélange de méthanol est distillé ou évaporé pour récupérer le méthanol.
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