GB1209074A - Separating 1,5-dinitronaphthalene from 1,8-dinitronaphthalene - Google Patents

Separating 1,5-dinitronaphthalene from 1,8-dinitronaphthalene

Info

Publication number
GB1209074A
GB1209074A GB1107668A GB1107668A GB1209074A GB 1209074 A GB1209074 A GB 1209074A GB 1107668 A GB1107668 A GB 1107668A GB 1107668 A GB1107668 A GB 1107668A GB 1209074 A GB1209074 A GB 1209074A
Authority
GB
United Kingdom
Prior art keywords
dinitronaphthalene
weight
separated
solution
march
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
GB1107668A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1209074A publication Critical patent/GB1209074A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/16—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/06—Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of six-membered aromatic rings

Landscapes

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

Abstract

1,209,074. Dinitronaphthalenes. BADISCHE ANILIN- & SODA-FABRIK A.G. 7 March, 1968 [11 March, 1967], No. 11076/68. Heading C2C. 1,5- and 1,8-Dinitronaphthalene are separated from mixtures of the two in a ratio of 25-40% by weight of 1,5-dinitronaphthalene and 75- 60% by weight of 1,8-dinitronaphthalene by means of a selective solvent, wherein 1,5-dinitronaphthalene is first deposited by cooling from a solution in 75-100% by weight nitric acid of 1,5- and 1,8-dinitronaphthalene of from a solution of 1,8-dinitronaphthalene in 75-100% by weight nitric acid in which 1,5-dinitronaphthalene is partly dissolved and partly suspended, the 1,5-dinitronaphthalene is separated and then 1,8-dinitronaphthalene is separated from the remaining solution by dilution with water.
GB1107668A 1967-03-11 1968-03-07 Separating 1,5-dinitronaphthalene from 1,8-dinitronaphthalene Expired GB1209074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0091588 1967-03-11

Publications (1)

Publication Number Publication Date
GB1209074A true GB1209074A (en) 1970-10-14

Family

ID=6985928

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1107668A Expired GB1209074A (en) 1967-03-11 1968-03-07 Separating 1,5-dinitronaphthalene from 1,8-dinitronaphthalene

Country Status (5)

Country Link
BE (1) BE711990A (en)
CH (1) CH498800A (en)
DE (1) DE1618109B1 (en)
FR (1) FR1556690A (en)
GB (1) GB1209074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114805079A (en) * 2022-04-28 2022-07-29 宁夏瑞泰科技股份有限公司 Method for continuously preparing dinitronaphthalene

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926947C2 (en) * 1979-07-04 1982-03-18 Hoechst Ag, 6000 Frankfurt Process for removing nitrosating agent (s) from nitrated aromatic compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114805079A (en) * 2022-04-28 2022-07-29 宁夏瑞泰科技股份有限公司 Method for continuously preparing dinitronaphthalene

Also Published As

Publication number Publication date
CH498800A (en) 1970-11-15
FR1556690A (en) 1968-12-30
DE1618109B1 (en) 1970-10-29
BE711990A (en) 1968-09-11

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees