GB1154061A - Process for the Production of Oxalic Acid. - Google Patents

Process for the Production of Oxalic Acid.

Info

Publication number
GB1154061A
GB1154061A GB1257667A GB1257667A GB1154061A GB 1154061 A GB1154061 A GB 1154061A GB 1257667 A GB1257667 A GB 1257667A GB 1257667 A GB1257667 A GB 1257667A GB 1154061 A GB1154061 A GB 1154061A
Authority
GB
United Kingdom
Prior art keywords
oxalic acid
nitric acid
march
production
propylene
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
GB1257667A
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
Priority claimed from FR53808A external-priority patent/FR1471632A/en
Application filed by Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB1154061A publication Critical patent/GB1154061A/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

Abstract

1,154,061. Oxalic acid. RHONE-POULENC S.A. 17 March, 1967 [17 March, 1966], No. 12576/67. Heading C2C. Oxalic acid is prepared by oxidizing propylene by introducing to nitric acid at 10‹ to 40‹ C. and heating to 45‹ to 100‹ C., with the simultaneous removal of the nitrogen oxides. The nitric acid concentration in the solution is maintained in the range 50 to 75% by weight, and the molar ratio of propylene to 100% nitric acid maintained throughout at between 0À01 to 1 and 0À5 to 1. Oxygen or oxygen containing gas may be introduced before or during either heating stage, and an elevated pressure may be employed. The process may be continuous, and suitable reactor series are described.
GB1257667A 1966-03-17 1967-03-17 Process for the Production of Oxalic Acid. Expired GB1154061A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR53808A FR1471632A (en) 1965-03-26 1966-03-17 Tab rule
FR53888A FR1501725A (en) 1966-03-17 1966-03-17 Process for obtaining oxalic acid

Publications (1)

Publication Number Publication Date
GB1154061A true GB1154061A (en) 1969-06-04

Family

ID=26169266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257667A Expired GB1154061A (en) 1966-03-17 1967-03-17 Process for the Production of Oxalic Acid.

Country Status (9)

Country Link
BE (1) BE695615A (en)
CH (1) CH467740A (en)
DE (1) DE1618816C3 (en)
ES (1) ES338147A1 (en)
FR (1) FR1501725A (en)
GB (1) GB1154061A (en)
LU (1) LU53206A1 (en)
NL (2) NL6703693A (en)
SE (1) SE350023B (en)

Also Published As

Publication number Publication date
LU53206A1 (en) 1967-05-16
DE1618816B2 (en) 1978-07-20
CH467740A (en) 1969-01-31
BE695615A (en) 1967-09-18
DE1618816C3 (en) 1979-03-29
SE350023B (en) 1972-10-16
ES338147A1 (en) 1968-04-01
DE1618816A1 (en) 1972-04-13
FR1501725A (en) 1967-11-18
NL133042C (en)
NL6703693A (en) 1967-09-18

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