FR1244325A - Perfectionnement à l'oxydation des xylènes - Google Patents

Perfectionnement à l'oxydation des xylènes

Info

Publication number
FR1244325A
FR1244325A FR39692A FR69039692A FR1244325A FR 1244325 A FR1244325 A FR 1244325A FR 39692 A FR39692 A FR 39692A FR 69039692 A FR69039692 A FR 69039692A FR 1244325 A FR1244325 A FR 1244325A
Authority
FR
France
Prior art keywords
xylenes
oxidation
improvement
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
FR39692A
Other languages
English (en)
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.)
Hercules Powder Co
Original Assignee
Hercules Powder Co
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 Hercules Powder Co filed Critical Hercules Powder Co
Application granted granted Critical
Publication of FR1244325A publication Critical patent/FR1244325A/fr
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
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
    • 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
    • C01B21/44—Concentration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
FR39692A 1958-09-05 1959-08-21 Perfectionnement à l'oxydation des xylènes Expired FR1244325A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US759280A US2999009A (en) 1958-09-05 1958-09-05 Purification of magnesium nitrate dehydrating solution employed in nitric acid manufacture

Publications (1)

Publication Number Publication Date
FR1244325A true FR1244325A (fr) 1960-09-19

Family

ID=25055072

Family Applications (1)

Application Number Title Priority Date Filing Date
FR39692A Expired FR1244325A (fr) 1958-09-05 1959-08-21 Perfectionnement à l'oxydation des xylènes

Country Status (2)

Country Link
US (1) US2999009A (fr)
FR (1) FR1244325A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1225811B (de) * 1959-03-19 1966-09-29 Asahi Chemical Ind Verfahren zum Wiedergewinnen der Loesungsmittel
US4966276A (en) * 1988-02-22 1990-10-30 Guenkel Alfred A Processes for concentrating nitric acid
CN109795994A (zh) * 2019-03-22 2019-05-24 宁夏润夏能源化工有限公司 一种稀硝酸加脱水剂制取浓硝酸的工艺
DE102023123079B3 (de) 2023-08-28 2024-09-26 Pfaudler Normag Systems GmbH Energieoptimiertes Verfahren zur Salpetersäurehochkonzentrierung mit Magnesiumnitrat

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1310383A (en) * 1919-07-15 Process for treating acid mine-water
CA510765A (fr) * 1955-03-08 Norsk Hydro-Elektrisk Kvaelstofaktieselskab Procede pour reduire l'acidite de composition d'acide nitrique et de nitrate de calcium contenant des ions de phosphate
US2463453A (en) * 1946-03-29 1949-03-01 Chemical Construction Corp Nitric acid concentration
US2794703A (en) * 1953-09-17 1957-06-04 Aerojet General Co Method of removing heavy metal ions from white fuming nitric acid
US2860035A (en) * 1956-03-28 1958-11-11 Chemical Construction Corp Production of highly concentrated nitric acid

Also Published As

Publication number Publication date
US2999009A (en) 1961-09-05

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