GB1255599A - Process for the preparation of oxalic acid - Google Patents

Process for the preparation of oxalic acid

Info

Publication number
GB1255599A
GB1255599A GB617970A GB617970A GB1255599A GB 1255599 A GB1255599 A GB 1255599A GB 617970 A GB617970 A GB 617970A GB 617970 A GB617970 A GB 617970A GB 1255599 A GB1255599 A GB 1255599A
Authority
GB
United Kingdom
Prior art keywords
oxalic acid
preparation
maintained
nitric acid
feb
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.)
Expired
Application number
GB617970A
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
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 Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB1255599A publication Critical patent/GB1255599A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
    • C07C51/275—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids of hydrocarbyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,255,599. Oxalic acid. RHONE POULENC S.A. 9 Feb., 1970 [10 Feb., 1969], No. 6179/70. Addition to 1,154,061. Heading C2C. In a process for the preparation of oxalic acid by the introduction of propylene into nitric acid at 10-40‹ C. and heating to 45- 100‹ C., the nitrous fumes formed are simultaneously removed so that the concentration, expressed as N0 2 is maintained between 1 and 10% by weight. The concentration of nitric acid in the solution is maintained at 50-70% by weight and the molar ratio of propylene to 100% nitric acid being maintained between 0À1: 1 and 0À5 : 1.
GB617970A 1969-02-10 1970-02-09 Process for the preparation of oxalic acid Expired GB1255599A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6903060A FR2031833A6 (en) 1969-02-10 1969-02-10

Publications (1)

Publication Number Publication Date
GB1255599A true GB1255599A (en) 1971-12-01

Family

ID=9028846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB617970A Expired GB1255599A (en) 1969-02-10 1970-02-09 Process for the preparation of oxalic acid

Country Status (10)

Country Link
BE (1) BE745716R (en)
BR (1) BR7016646D0 (en)
CA (1) CA920612A (en)
DE (1) DE2005906A1 (en)
ES (1) ES376418A2 (en)
FR (1) FR2031833A6 (en)
GB (1) GB1255599A (en)
LU (1) LU60322A1 (en)
NL (1) NL142145B (en)
SU (1) SU400076A3 (en)

Also Published As

Publication number Publication date
LU60322A1 (en) 1970-09-09
BR7016646D0 (en) 1973-05-03
NL7001459A (en) 1970-08-12
CA920612A (en) 1973-02-06
FR2031833A6 (en) 1970-11-20
BE745716R (en) 1970-08-10
SU400076A3 (en) 1973-10-03
DE2005906A1 (en) 1970-09-17
NL142145B (en) 1974-05-15
ES376418A2 (en) 1972-04-16

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