GB722074A - Improvements in or relating to the preparation of metaaminophenol - Google Patents

Improvements in or relating to the preparation of metaaminophenol

Info

Publication number
GB722074A
GB722074A GB26437/52A GB2643752A GB722074A GB 722074 A GB722074 A GB 722074A GB 26437/52 A GB26437/52 A GB 26437/52A GB 2643752 A GB2643752 A GB 2643752A GB 722074 A GB722074 A GB 722074A
Authority
GB
United Kingdom
Prior art keywords
added
steam
metaaminophenol
relating
preparation
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
GB26437/52A
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.)
Sumner Chemical Co Inc
Original Assignee
Sumner Chemical Co Inc
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 Sumner Chemical Co Inc filed Critical Sumner Chemical Co Inc
Publication of GB722074A publication Critical patent/GB722074A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/74—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
    • C07C215/76—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton of the same non-condensed six-membered aromatic ring

Landscapes

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

Abstract

Meta-aminophenol is prepared by the caustic fusion of metanilic acid in presence of added steam, preferably at 250-300 DEG C. In an example the reaction is performed with mixed caustic soda and potash, and the introduction of superheated steam. A table showing comparative yields when nitrogen, or steam, is added, and when no addition is made, to the reaction mixture, is given. Water may be added before heating, but requires additional heat.
GB26437/52A 1951-11-28 1952-10-21 Improvements in or relating to the preparation of metaaminophenol Expired GB722074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US722074XA 1951-11-28 1951-11-28

Publications (1)

Publication Number Publication Date
GB722074A true GB722074A (en) 1955-01-19

Family

ID=22106228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26437/52A Expired GB722074A (en) 1951-11-28 1952-10-21 Improvements in or relating to the preparation of metaaminophenol

Country Status (1)

Country Link
GB (1) GB722074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110283086A (en) * 2019-06-20 2019-09-27 河北建新化工股份有限公司 A kind of method and device of continuous production m-aminophenol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110283086A (en) * 2019-06-20 2019-09-27 河北建新化工股份有限公司 A kind of method and device of continuous production m-aminophenol
CN110283086B (en) * 2019-06-20 2022-04-01 河北建新化工股份有限公司 Method and device for continuously producing m-aminophenol

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