GB1417662A - Method of preparing p-chloro-m-phenylenediamine - Google Patents

Method of preparing p-chloro-m-phenylenediamine

Info

Publication number
GB1417662A
GB1417662A GB2582274A GB2582274A GB1417662A GB 1417662 A GB1417662 A GB 1417662A GB 2582274 A GB2582274 A GB 2582274A GB 2582274 A GB2582274 A GB 2582274A GB 1417662 A GB1417662 A GB 1417662A
Authority
GB
United Kingdom
Prior art keywords
chloro
platinum
range
weight per
hydrogen
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
GB2582274A
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber 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 Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of GB1417662A publication Critical patent/GB1417662A/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1417662 p-Chloro-m-phenylenedia mine preparation GOODYEAR TIRE & RUBBER CO 11 June 1974 [2 July 1973] 25822/74 Heading C2C A method of preparing p-chloro-m-phenylenediamine comprises hydrogenating 4-chloro-1,3- dinitro benzene in a solvent solution which will dissolve said diamine and which comprises from 85 to 100 weight per cent of an ester and from 0 to 15 weight per cent of a mono alcohol at a pressure in the range of from 400 to 1000 pounds per square inch gauge and at a temperature in the range of from 60‹ to 140‹ C. in the presence of a reduced platinum on granular carbon catalyst which comprises from 0À5 to 1À5 weight per cent platinum which catalyst is characterized by having a nitrobenzene number (as hereinafter defined) in the range of 260 to 3200 and further characterized by the platinum being reduced on the carbon support by at least 95% and means being provided for the introduction of the hydrogen which preferably comprises a dispersive hydrogen charging means positioned beneath the liquid mixture. The nitrobenzene number is calculated as the volume of hydrogen at STP taken up over the first five minutes of reaction per gram of dry catalyst.
GB2582274A 1973-07-02 1974-06-11 Method of preparing p-chloro-m-phenylenediamine Expired GB1417662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37558973A 1973-07-02 1973-07-02

Publications (1)

Publication Number Publication Date
GB1417662A true GB1417662A (en) 1975-12-10

Family

ID=23481476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2582274A Expired GB1417662A (en) 1973-07-02 1974-06-11 Method of preparing p-chloro-m-phenylenediamine

Country Status (6)

Country Link
JP (1) JPS5040535A (en)
CA (1) CA1018546A (en)
DE (1) DE2428141C2 (en)
FR (1) FR2235912B1 (en)
GB (1) GB1417662A (en)
IT (1) IT1016243B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547264C1 (en) * 2013-08-07 2015-04-10 Общество с ограниченной ответственностью "Фенил" (ООО "Фенил") Method of producing chlorine-substituted phenylenediamines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073865A (en) * 1958-09-17 1963-01-15 Du Pont Process for catalytically reducing halogen-substituted aromatic nitro compounds to the corresponding amines
FR1250453A (en) * 1959-09-10 1961-01-13 Du Pont Catalytic reduction process for nitrated and halogenated aromatic compounds
DE1187243B (en) * 1962-04-09 1965-02-18 Du Pont Process for the preparation of halogen-substituted aromatic amines
US3499034A (en) * 1966-08-01 1970-03-03 Du Pont Hydrogenation of aromatic nitro compounds
US3474144A (en) * 1966-08-17 1969-10-21 Gaf Corp Catalytic reduction of chloronitro aromatic compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547264C1 (en) * 2013-08-07 2015-04-10 Общество с ограниченной ответственностью "Фенил" (ООО "Фенил") Method of producing chlorine-substituted phenylenediamines

Also Published As

Publication number Publication date
FR2235912B1 (en) 1977-10-14
IT1016243B (en) 1977-05-30
FR2235912A1 (en) 1975-01-31
JPS5040535A (en) 1975-04-14
DE2428141C2 (en) 1982-11-18
CA1018546A (en) 1977-10-04
DE2428141A1 (en) 1975-01-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee