FR2376069A1 - PROCESS FOR THE CONTINUOUS TREATMENT OF NITRIC ACIDS FROM THE MANUFACTURE OF NITER DERIVATIVES OF ALKYLPHENOLS - Google Patents

PROCESS FOR THE CONTINUOUS TREATMENT OF NITRIC ACIDS FROM THE MANUFACTURE OF NITER DERIVATIVES OF ALKYLPHENOLS

Info

Publication number
FR2376069A1
FR2376069A1 FR7639523A FR7639523A FR2376069A1 FR 2376069 A1 FR2376069 A1 FR 2376069A1 FR 7639523 A FR7639523 A FR 7639523A FR 7639523 A FR7639523 A FR 7639523A FR 2376069 A1 FR2376069 A1 FR 2376069A1
Authority
FR
France
Prior art keywords
alkylphenols
manufacture
acids
derivatives
niter
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
FR7639523A
Other languages
French (fr)
Other versions
FR2376069B1 (en
Inventor
Louise Molard
Jean Lambert
Thierry Maes
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Priority to FR7639523A priority Critical patent/FR2376069A1/en
Priority to CH1464477A priority patent/CH625489A5/en
Priority to GB5303277A priority patent/GB1544317A/en
Priority to DE19772757073 priority patent/DE2757073A1/en
Priority to SE7714900A priority patent/SE426475B/en
Publication of FR2376069A1 publication Critical patent/FR2376069A1/en
Application granted granted Critical
Publication of FR2376069B1 publication Critical patent/FR2376069B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/38—Nitric acid
    • C01B21/46—Purification; Separation ; Stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un procédé continu de concentration et d'épuration des vieux acides issus de la fabrication des dérivés nitrés des alkylphénols et l'installation pour la mise en oeuvre de ce procédé. Les vieux acides pré-traités sont introduits dans un évaporateur où règne une pression comprise entre 50 et 760 mm de mercure et une température de 50 et 760 mm de mercure et une température de 50 à 120 degrés C Les impuretés sont transformées intégralement en acides picrique, oxalique et carboxylique commercialisables. L'acide nitrique pur récupéré titre au moins 50 % et est obtenu avec un rendement supérieur à 90 %. Application : rentabilisation du traitement des effluents des unites de production des dérivés nitrés des alkylphénols, notamment du dinitro-4,6 0-t-butyl phénol, l'acide carboxylique récupéré étant alors de l'acide pivalique.The invention relates to a continuous process for the concentration and purification of old acids resulting from the manufacture of nitro derivatives of alkylphenols and to the installation for the implementation of this process. The old pre-treated acids are introduced into an evaporator where there is a pressure of between 50 and 760 mm of mercury and a temperature of 50 and 760 mm of mercury and a temperature of 50 to 120 degrees C. The impurities are completely transformed into picric acids marketable, oxalic and carboxylic. The pure nitric acid recovered has a title of at least 50% and is obtained with a yield greater than 90%. Application: profitability of the treatment of effluents from production units of nitro derivatives of alkylphenols, in particular dinitro-4,6 0-t-butyl phenol, the carboxylic acid recovered then being pivalic acid.

FR7639523A 1976-12-30 1976-12-30 PROCESS FOR THE CONTINUOUS TREATMENT OF NITRIC ACIDS FROM THE MANUFACTURE OF NITER DERIVATIVES OF ALKYLPHENOLS Granted FR2376069A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7639523A FR2376069A1 (en) 1976-12-30 1976-12-30 PROCESS FOR THE CONTINUOUS TREATMENT OF NITRIC ACIDS FROM THE MANUFACTURE OF NITER DERIVATIVES OF ALKYLPHENOLS
CH1464477A CH625489A5 (en) 1976-12-30 1977-11-30 Process for the continuous recovery, purification and concentration of nitric acid present in a residual acidic mixture arising from the manufacture of nitrated derivatives of phenols
GB5303277A GB1544317A (en) 1976-12-30 1977-12-20 Process for the continuous treatment of used nitric acid
DE19772757073 DE2757073A1 (en) 1976-12-30 1977-12-21 METHOD AND DEVICE FOR THE CONTINUOUS TREATMENT OF NITRIC ACIDS FROM THE PRODUCTION OF NITRATED ALKYLPHENOL DERIVATIVES
SE7714900A SE426475B (en) 1976-12-30 1977-12-29 SET TO CONTINUOUSLY TREAT RESTAURAL NITRIC ACIDS AND DEVICE IMPLEMENTATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7639523A FR2376069A1 (en) 1976-12-30 1976-12-30 PROCESS FOR THE CONTINUOUS TREATMENT OF NITRIC ACIDS FROM THE MANUFACTURE OF NITER DERIVATIVES OF ALKYLPHENOLS

Publications (2)

Publication Number Publication Date
FR2376069A1 true FR2376069A1 (en) 1978-07-28
FR2376069B1 FR2376069B1 (en) 1979-04-20

Family

ID=9181707

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639523A Granted FR2376069A1 (en) 1976-12-30 1976-12-30 PROCESS FOR THE CONTINUOUS TREATMENT OF NITRIC ACIDS FROM THE MANUFACTURE OF NITER DERIVATIVES OF ALKYLPHENOLS

Country Status (5)

Country Link
CH (1) CH625489A5 (en)
DE (1) DE2757073A1 (en)
FR (1) FR2376069A1 (en)
GB (1) GB1544317A (en)
SE (1) SE426475B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389823B (en) * 1988-05-13 1990-02-12 Chemie Holding Ag METHOD FOR SELECTIVE REMOVAL AND DESTRUCTION OF CYAN HYDROGEN FROM A MIXTURE WITH NITROSE GASES
CN103449388B (en) * 2013-09-10 2016-03-30 安徽淮化股份有限公司 A kind of dust technology recovery method and specific equipment thereof
CN103879977B (en) * 2014-04-03 2015-12-09 苏州晶瑞化学股份有限公司 A kind of continuous production method of high pure nitric acid and production equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217154B2 (en) * 1974-12-24 1977-05-13

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
GB1544317A (en) 1979-04-19
FR2376069B1 (en) 1979-04-20
DE2757073C2 (en) 1988-01-07
DE2757073A1 (en) 1978-07-13
SE426475B (en) 1983-01-24
CH625489A5 (en) 1981-09-30
SE7714900L (en) 1978-07-01

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Legal Events

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