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1. (DK0858428) Fremgangsmåde til behandling af røg indeholdende svovloxider

Office : Denmark
Application Number: 96937379 Application Date: 31.10.1996
Publication Number: 0858428 Publication Date: 11.12.2006
Grant Number: Grant Date: 11.12.2006
Publication Kind : T4
Prior PCT appl.: Application Number:FR1996001719 ; Publication Number: Click to see the data
IPC:
C01D 5/00
B01D 53/50
B01D 53/68
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
D
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
5
Sulfates or sulfites of sodium, potassium, or alkali metals in general
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
46
Removing components of defined structure
48
Sulfur compounds
50
Sulfur oxides
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
46
Removing components of defined structure
68
Halogens or halogen compounds
CPC:
B01D 53/508
B01D 53/68
C01D 5/00
Applicants: Novacarb
Inventors: FOURCOT, Fabrice
Priority Data: 9512975 31.10.1995 FR
Title: (DA) Fremgangsmåde til behandling af røg indeholdende svovloxider
Abstract:
(EN) A method for dry or wet-dry processing flue gases containing compounds such as sulphur oxides, wherein the flue gases are treated with a reagent selected from sodium carbonate, sodium bicarbonate and mixtures thereof, the resulting sodium sulphates are selectively dissolved in water, the solids still in suspension in the solution are separated, and the purified sodium sulphate contained in said solution is crystallised. The method enables reusable sodium sulphate to be produced.
Also published as:
ES2153990EP0858428US6180074JPH11514567 CA2233246DE000069611689
PT858428AU1996074995FR2740354BG62608WO/1997/016376