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1. RU0002468004 - METHOD OF PRODUCING METAL DIHYDROXYBENZENE DISULPHONATES

Office Russian Federation
Application Number 2009100840/04
Application Date 12.06.2007
Publication Number 0002468004
Publication Date 27.11.2012
Grant Number
Grant Date 27.11.2012
Publication Kind C2
IPC
C07C 303/32
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
303Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
32of salts of sulfonic acids
C07C 303/22
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
303Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
02of sulfonic acids or halides thereof
22from sulfonic acids by reactions not involving the formation of sulfo or halosulfonyl groups
C07C 309/42
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
309Sulfonic acids; Halides, esters, or anhydrides thereof
01Sulfonic acids
28having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
41containing singly-bound oxygen atoms bound to the carbon skeleton
42having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings
CPC
C07C 303/06
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
303Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
02of sulfonic acids or halides thereof
04by substitution of hydrogen atoms by sulfo or halosulfonyl groups
06by reaction with sulfuric acid or sulfur trioxide
C07C 303/32
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
303Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
32of salts of sulfonic acids
Inventors ДЮРИ Мишель (FR)
БРЕ Эрве (FR)
DJuRI Mishel' (FR)
BRE Ehrve (FR)
Priority Data 0605242 13.06.2006 FR
Title
(EN) METHOD OF PRODUCING METAL DIHYDROXYBENZENE DISULPHONATES
(RU) СПОСОБ ПОЛУЧЕНИЯ ДИГИДРОКСИБЕНЗОЛДИСУЛЬФОНАТОВ МЕТАЛЛОВ
Abstract
(EN)
FIELD: chemistry. SUBSTANCE: invention relates to a method of producing metal dihydroxybenzene disulphonates from corresponding dihydroxybenzene disulphonic acids , characterised by that it involves reaction of dihydroxybenzene sulphonic acid in a sulphurous medium with an amount of a salt containing a sulphate anion or a hydrosulphate anion, expressed with respect to the number of moles of the sulphate or hydrosulphate and the number of moles of dihydrobenzene disulphonic acid, equal to 1 or ranging from 1.6 to 2.5. EFFECT: high efficiency of the method. 25 cl, 6 ex

(RU)
Изобретение относится к способу получения дигидроксибензолдисульфонатов металлов из соответствующих дигидроксибензолдисульфокислот формулы (I) , отличающийся тем, что он включает взаимодействие дигидроксибензолдисульфокислоты в сернокислой среде с количеством соли, содержащей сульфат-анион или гидросульфат-анион, выраженное по отношению к числу моль соли сульфата или гидросульфата и числу моль дигидробензодисульфокислоты, равным 1, или от 1,6 до 2,5. 3 н. и 22 з.п. ф-лы, 6 пр.