NL7213273A - Hydroxylammonium salt synthesis - with regeneration of noble metal catalyst - Google Patents

Hydroxylammonium salt synthesis - with regeneration of noble metal catalyst

Info

Publication number
NL7213273A
NL7213273A NL7213273A NL7213273A NL7213273A NL 7213273 A NL7213273 A NL 7213273A NL 7213273 A NL7213273 A NL 7213273A NL 7213273 A NL7213273 A NL 7213273A NL 7213273 A NL7213273 A NL 7213273A
Authority
NL
Netherlands
Prior art keywords
catalyst
synthesis zone
hydroxylammonium salt
regeneration
noble metal
Prior art date
Application number
NL7213273A
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 filed Critical
Priority to NL7213273A priority Critical patent/NL7213273A/en
Publication of NL7213273A publication Critical patent/NL7213273A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/14—Hydroxylamine; Salts thereof
    • C01B21/1409—Preparation
    • C01B21/1418—Preparation by catalytic reduction of nitrogen oxides or nitrates with hydrogen
    • 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
    • Y02P20/584—Recycling of catalysts

Landscapes

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

Abstract

Cyclic process for prepn. and use of a hydroxylammonium salt (I) soln, in which an aqs. acidic reaction medium is cycled between a (I) synthesis zone and an oxime, esp. cyclohexanone oxime synthesis zone, is effected by (a) catalytically reducing nitrate ions in the (I) synthesis zone with a Pd-on-C catalyst or a Pd/Pt-C catalyst and H2, (b) supplying nitric gas, which is formed in situ by absorption of nitrous gases in amt, corresp. to amt. of used nitrate ions, into the recycled reaction medium, (c) regenerating used catalyst by sepg. from the process liquid and treating with hot water at >70 degrees C, and (d) recycling the regenerated catalyst to the (I) synthesis zone.
NL7213273A 1972-09-30 1972-09-30 Hydroxylammonium salt synthesis - with regeneration of noble metal catalyst NL7213273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7213273A NL7213273A (en) 1972-09-30 1972-09-30 Hydroxylammonium salt synthesis - with regeneration of noble metal catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7213273A NL7213273A (en) 1972-09-30 1972-09-30 Hydroxylammonium salt synthesis - with regeneration of noble metal catalyst

Publications (1)

Publication Number Publication Date
NL7213273A true NL7213273A (en) 1973-11-26

Family

ID=19817042

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7213273A NL7213273A (en) 1972-09-30 1972-09-30 Hydroxylammonium salt synthesis - with regeneration of noble metal catalyst

Country Status (1)

Country Link
NL (1) NL7213273A (en)

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