[go: up one dir, main page]

JPS5722104A - Removal and decomposition of dithionic acid in aqueous solution - Google Patents

Removal and decomposition of dithionic acid in aqueous solution

Info

Publication number
JPS5722104A
JPS5722104A JP9362780A JP9362780A JPS5722104A JP S5722104 A JPS5722104 A JP S5722104A JP 9362780 A JP9362780 A JP 9362780A JP 9362780 A JP9362780 A JP 9362780A JP S5722104 A JPS5722104 A JP S5722104A
Authority
JP
Japan
Prior art keywords
amine
amine complex
metal
dithionic acid
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9362780A
Other languages
Japanese (ja)
Inventor
Taijiro Okabe
Tsugio Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP9362780A priority Critical patent/JPS5722104A/en
Publication of JPS5722104A publication Critical patent/JPS5722104A/en
Pending legal-status Critical Current

Links

Landscapes

  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To remove and decompose dithionic acid, by adding a compound of transition element to form an amine complex and an amine or an amine complex formed by both to an aqueous solution containing dithionic acid, precipitating and separating a metal amine complex of dithionic acid, followed by decomposing it under heating.
CONSTITUTION: A compound of transition element to form an amine complex and an amine, or an amine complex formed by both is added to an aqueous solution containing dithionic acid, and dithonic acid is converted, precipitated and separated as a slightly water-insoluble crystal of a metal amine complex of dithionic acid. The precipitated crystal of a metal amine complex of dithionic acid is decomposed under heating in the presence of an alkali hydroxide or inorganic strong acid, so that a sulfur component is converted into a sulfate, sulfite, and sulfur dioxide an amine component is changed into an amine, amine salt, and metal amine complex, and a transition metal component is made into an oxide of transition metal, hydroxide of transition metal, and metal amine complex of transition metal.
COPYRIGHT: (C)1982,JPO&Japio
JP9362780A 1980-07-09 1980-07-09 Removal and decomposition of dithionic acid in aqueous solution Pending JPS5722104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9362780A JPS5722104A (en) 1980-07-09 1980-07-09 Removal and decomposition of dithionic acid in aqueous solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9362780A JPS5722104A (en) 1980-07-09 1980-07-09 Removal and decomposition of dithionic acid in aqueous solution

Publications (1)

Publication Number Publication Date
JPS5722104A true JPS5722104A (en) 1982-02-05

Family

ID=14087558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9362780A Pending JPS5722104A (en) 1980-07-09 1980-07-09 Removal and decomposition of dithionic acid in aqueous solution

Country Status (1)

Country Link
JP (1) JPS5722104A (en)

Similar Documents

Publication Publication Date Title
GB1480205A (en) Exhaust gas scrubbing process
GB1510275A (en) Removal of sulphur oxides from waste gas
JPS57193439A (en) Recovery of useful components from waste liquid flow obtained on urea manufacture
ES8506239A1 (en) Process for removing fluorine from an acid sulfate solution.
GB1445232A (en) Process for removing sulphur dioxide from dust-laden waste gases
DE3371193D1 (en) A method for producing basic aluminium sulphate (iii)
GB1013496A (en) A process for the preparation of metal salts ofª‡-hydroxy-ª†-methyl mercapto butyricacid
RU94030732A (en) Method of alkaline metal carbonate producing, method of sodium carbonate producing
ES8205879A1 (en) Method for producing electrolytic manganese dioxide
ES471032A1 (en) Purification process
JPS5722104A (en) Removal and decomposition of dithionic acid in aqueous solution
KR850008505A (en) Stabilized acidic aqueous solution composition containing hydrogen peroxide and metal ions
DE3175604D1 (en) Process for the removal of manganese and chloride ions from aqueous acidic zinc sulphate solutions and process for the recovery of zinc
GB803801A (en) Method of purifying the exhaust air from viscose manufacturing plants
GB1508272A (en) Periodate stabilised hypochlorites
JPS54132520A (en) Preparation of colorless methionine
GB1479581A (en) Method for producing alkali metal gold sulphites
ES511421A0 (en) "A PROCEDURE FOR THE EXTRACTION OF AQUEOUS SOLUTIONS TO PURIFY, CONTAINING CARBONATE, SULPHATE, HYDROXIDE OR HYDROGENOCARBONATE AND ALKALINE ARSENIATE".
GB2019826A (en) Process of Removing Oxides of Sulfur from Gases; Sludge Resulting from Process: and Product Comprising Lime or Limestone
ES457127A1 (en) Preparation of ferric sulfate solutions
JPS5590415A (en) Preparation of aluminosilicate of high purity
GB1353248A (en) Removal of acidic gases
GB1513493A (en) Treatment of gas mixtures containing oxides of nitrogen
JPS53149197A (en) Purifying method for aqueous solution of alkali chloride
JPS54104649A (en) Removal of ammoniac nitrogen in waste water