JPS5630942A - Preparation of oxalic acid-containing product by oxidation of carbonaceous material with nitrogen oxo acid salt - Google Patents

Preparation of oxalic acid-containing product by oxidation of carbonaceous material with nitrogen oxo acid salt

Info

Publication number
JPS5630942A
JPS5630942A JP10789179A JP10789179A JPS5630942A JP S5630942 A JPS5630942 A JP S5630942A JP 10789179 A JP10789179 A JP 10789179A JP 10789179 A JP10789179 A JP 10789179A JP S5630942 A JPS5630942 A JP S5630942A
Authority
JP
Japan
Prior art keywords
coal
carbonaceous material
oxalic acid
salt
containing product
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.)
Granted
Application number
JP10789179A
Other languages
Japanese (ja)
Other versions
JPS6236510B2 (en
Inventor
Taijiro Okabe
Akitsugu Okuwaki
Toshio Henmi
Takashi Amano
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 JP10789179A priority Critical patent/JPS5630942A/en
Publication of JPS5630942A publication Critical patent/JPS5630942A/en
Publication of JPS6236510B2 publication Critical patent/JPS6236510B2/ja
Granted legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To prepare an oxalic acid-containing product useful as a starting material in organic synthetic chemistry, etc. in high yield under mild reaction conditions, by oxidizing a carbonaceous material with a salt of nitrogen oxo acid in an aqueous solution of a caustic alkali having a specific concentration at high temperature.
CONSTITUTION: A carbonaceous material, e.g. coal having various carbonization degrees, residues prepared by steam treatment, hydrogenation treatment, etc. of coal, etc., is oxidized with a salt of nitrogen oxo acid in an aqueous solution of a caustic alkali having a concentration of 2W100mol/kg H2O, preferably 3W50mol/kg H2O at high temperature pref. at 200W400°C to give an oxalic acid-containing product. The yield of oxalic acid can be increased by pretreating coal having a high carbonization degree in oxygen or atmosphere containing oxygen to adjust the carbon content and the oxygen content of the coal to those of brown coal. The salt of nitrogen oxo acid is nitrates etc. and its amount is pref. 5W15 times (weight) that of the carbonaceous material calculated in terms of sodium nitrate.
COPYRIGHT: (C)1981,JPO&Japio
JP10789179A 1979-08-24 1979-08-24 Preparation of oxalic acid-containing product by oxidation of carbonaceous material with nitrogen oxo acid salt Granted JPS5630942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10789179A JPS5630942A (en) 1979-08-24 1979-08-24 Preparation of oxalic acid-containing product by oxidation of carbonaceous material with nitrogen oxo acid salt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10789179A JPS5630942A (en) 1979-08-24 1979-08-24 Preparation of oxalic acid-containing product by oxidation of carbonaceous material with nitrogen oxo acid salt

Publications (2)

Publication Number Publication Date
JPS5630942A true JPS5630942A (en) 1981-03-28
JPS6236510B2 JPS6236510B2 (en) 1987-08-07

Family

ID=14470686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10789179A Granted JPS5630942A (en) 1979-08-24 1979-08-24 Preparation of oxalic acid-containing product by oxidation of carbonaceous material with nitrogen oxo acid salt

Country Status (1)

Country Link
JP (1) JPS5630942A (en)

Also Published As

Publication number Publication date
JPS6236510B2 (en) 1987-08-07

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