ES413228A1 - Process for the preparation of rho-phenylenediamine - Google Patents

Process for the preparation of rho-phenylenediamine

Info

Publication number
ES413228A1
ES413228A1 ES413228A ES413228A ES413228A1 ES 413228 A1 ES413228 A1 ES 413228A1 ES 413228 A ES413228 A ES 413228A ES 413228 A ES413228 A ES 413228A ES 413228 A1 ES413228 A1 ES 413228A1
Authority
ES
Spain
Prior art keywords
preparation
rho
phenylenediamine
procedure
terephthalic acid
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
ES413228A
Other languages
Spanish (es)
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.)
Akzo NV
Original Assignee
Akzo NV
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 Akzo NV filed Critical Akzo NV
Publication of ES413228A1 publication Critical patent/ES413228A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyamides (AREA)

Abstract

Procedure for the preparation of paraphenylenediamine, characterized in that in a first step of the process, polyesters of terephthalic acid are treated with ammonia that contains a maximum of 15% by weight of water, and the terephthalic acid diamide resulting in this way is subjected to a second stage of the procedure to the degradation of Hofmann. (Machine-translation by Google Translate, not legally binding)
ES413228A 1972-04-01 1973-03-31 Process for the preparation of rho-phenylenediamine Expired ES413228A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722216117 DE2216117C3 (en) 1972-04-01 1972-04-01 Process for the preparation of p-phenylenediamine

Publications (1)

Publication Number Publication Date
ES413228A1 true ES413228A1 (en) 1976-01-01

Family

ID=5840932

Family Applications (1)

Application Number Title Priority Date Filing Date
ES413228A Expired ES413228A1 (en) 1972-04-01 1973-03-31 Process for the preparation of rho-phenylenediamine

Country Status (12)

Country Link
JP (1) JPS5754499B2 (en)
AT (1) AT321269B (en)
BE (1) BE797561A (en)
CA (1) CA998068A (en)
CH (1) CH577954A5 (en)
DD (1) DD106636A5 (en)
DE (1) DE2216117C3 (en)
ES (1) ES413228A1 (en)
FR (1) FR2178978B1 (en)
GB (1) GB1399406A (en)
IT (1) IT989535B (en)
NL (1) NL7304531A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53122611A (en) * 1977-03-31 1978-10-26 Denki Kagaku Kogyo Kk Desulfurizing agent for molten metal
DE3162533D1 (en) * 1980-11-17 1984-04-12 Du Pont Production of p-phenylenediamine

Also Published As

Publication number Publication date
IT989535B (en) 1975-06-10
CA998068A (en) 1976-10-05
DE2216117B2 (en) 1980-07-31
NL7304531A (en) 1973-10-03
CH577954A5 (en) 1976-07-30
JPS4913126A (en) 1974-02-05
DE2216117A1 (en) 1973-10-04
DE2216117C3 (en) 1981-04-02
AT321269B (en) 1975-03-25
FR2178978B1 (en) 1978-03-03
FR2178978A1 (en) 1973-11-16
GB1399406A (en) 1975-07-02
JPS5754499B2 (en) 1982-11-18
BE797561A (en) 1973-07-16
DD106636A5 (en) 1974-06-20

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