ES413228A1 - Process for the preparation of rho-phenylenediamine - Google Patents
Process for the preparation of rho-phenylenediamineInfo
- 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
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)
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)
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 |
-
1972
- 1972-04-01 DE DE19722216117 patent/DE2216117C3/en not_active Expired
-
1973
- 1973-03-13 IT IT4878073A patent/IT989535B/en active
- 1973-03-28 CA CA167,379A patent/CA998068A/en not_active Expired
- 1973-03-29 DD DD16982073A patent/DD106636A5/xx unknown
- 1973-03-30 GB GB1543973A patent/GB1399406A/en not_active Expired
- 1973-03-30 BE BE129464A patent/BE797561A/en unknown
- 1973-03-30 FR FR7311671A patent/FR2178978B1/fr not_active Expired
- 1973-03-30 AT AT282273A patent/AT321269B/en not_active IP Right Cessation
- 1973-03-30 CH CH459773A patent/CH577954A5/xx not_active IP Right Cessation
- 1973-03-31 NL NL7304531A patent/NL7304531A/xx not_active Application Discontinuation
- 1973-03-31 ES ES413228A patent/ES413228A1/en not_active Expired
- 1973-04-02 JP JP3772073A patent/JPS5754499B2/ja not_active Expired
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES278596A1 (en) | Method of treating polyester polymer materials to improve their adhesion characteristics | |
NL163814C (en) | PROCESS FOR PREPARING CURING MASSES WHEN PRESENT OF WATER TO ELASTOMERS, AND FORMED PRODUCT, WHOLLY OR IN PART THEREOF. | |
ES413228A1 (en) | Process for the preparation of rho-phenylenediamine | |
NL7411242A (en) | METHOD OF TREATING FRUIT. | |
CH402861A (en) | Process for the preparation of 1,3,3-trisubstituted 4- (-subst.-ethyl) -2-pyrrolidinones | |
NL166711C (en) | PROCESS FOR PREPARING MIXTURES BASED ON PREPOLYMERS FROM N, N'-BISIMIDES OF MALINIC ACID AND BIPRIMARY DIAMINS. | |
ES421120A1 (en) | Procedure for the preparation of N- (2-amino-3,5-dibromobenciliden) -trans-4-amino-ciclohexanol. (Machine-translation by Google Translate, not legally binding) | |
ES413226A1 (en) | Process for the preparation of m- and p-phenylenediamine from iso phthalic acid diamide | |
ES413227A1 (en) | Preparation of terephthalic acid diamide | |
AT321903B (en) | PROCESS FOR THE PREPARATION OF 1,4-NAPHTHOQUINONE IN ADDITION TO PHTHALIC ANHYDRIDE | |
IT1008980B (en) | PROCEDURE AND PLANT TO PRODUCE CHLOROPRENE | |
ES412195A1 (en) | Smoking material | |
CH448525A (en) | Process for the production of water-compatible polyester resins | |
AT309088B (en) | Process for the production of artificial leather that is similar to natural leather | |
CH437813A (en) | Process for the production of mechanically strong feed pellets | |
ES378594A1 (en) | Autolysis product of fish and process for its manufacture | |
CH550119A (en) | PROCESS FOR PRODUCING DEUTERIUM ENRICHED WATER OR HYDROGEN. | |
ES331098A1 (en) | Procedure for obtaining N-alkyliden-amino-etilencarbamatos ciclicos. (Machine-translation by Google Translate, not legally binding) | |
SU328792A1 (en) | METHOD OF PROTECTING PHOTOMATERIALS FROM TWIST | |
ES377568A1 (en) | Process for the preparation of n-alkyllactams having at least 10 ring members | |
SU648611A1 (en) | Method of hide curing | |
ES378997A1 (en) | Procedure for the manufacture of figures of characteristics similar to the porcelain. (Machine-translation by Google Translate, not legally binding) | |
SU461619A1 (en) | METHOD OF OBTAINING 4-DIMETHYLAMINO-5-NITRO-2-METHOXY-N-β-DIETHYLAMINOETHYL) BENZAMIDE | |
ES288288A1 (en) | Procedure for obtaining alpha- [o, O-dialkyl-mono or -ditio-phosphoril] -carbonamides (Machine-translation by Google Translate, not legally binding) | |
ES388016A1 (en) | A method of preparation of trans isomers of 1,2,3,4 cyclopentane-tetracarboxylic acids |