ES404159A1 - Catalyst for hydroxylamine prodn - made by redn of hexachloroplatinum solns with formaldehyde - Google Patents

Catalyst for hydroxylamine prodn - made by redn of hexachloroplatinum solns with formaldehyde

Info

Publication number
ES404159A1
ES404159A1 ES404159A ES404159A ES404159A1 ES 404159 A1 ES404159 A1 ES 404159A1 ES 404159 A ES404159 A ES 404159A ES 404159 A ES404159 A ES 404159A ES 404159 A1 ES404159 A1 ES 404159A1
Authority
ES
Spain
Prior art keywords
catalyst
hexachloroplatinum
solns
hydroxylamine
esp
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
ES404159A
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.)
Centrala Industriala de Fibre Chemice
Original Assignee
Centrala Industriala de Fibre Chemice
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 Centrala Industriala de Fibre Chemice filed Critical Centrala Industriala de Fibre Chemice
Publication of ES404159A1 publication Critical patent/ES404159A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/96—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • 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

Abstract

Pt catalysts, with optional addns. of noble metals, are made by heating hexachloroplatinum solns. to boiling and adding a colloid, esp. gelatine, and an inert carrier, esp. graphite powder. The soln. is reduced using excess formaldehyde in alkaline medium, the catalyst is filtered, washed and activated with H2 in acid soln., pref. in the presence of a small amt. of ferricyanide. On exhaustion, the catalyst can be regenerated and reactivated. The materials are esp. suited for reduction of NO, NO2, alkyl nitrites, etc. with H2 for production of hydroxylamine.
ES404159A 1971-09-24 1972-06-23 Catalyst for hydroxylamine prodn - made by redn of hexachloroplatinum solns with formaldehyde Expired ES404159A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO6827671 1971-09-24

Publications (1)

Publication Number Publication Date
ES404159A1 true ES404159A1 (en) 1975-12-16

Family

ID=20089622

Family Applications (1)

Application Number Title Priority Date Filing Date
ES404159A Expired ES404159A1 (en) 1971-09-24 1972-06-23 Catalyst for hydroxylamine prodn - made by redn of hexachloroplatinum solns with formaldehyde

Country Status (4)

Country Link
DE (1) DE2222120B2 (en)
ES (1) ES404159A1 (en)
FR (1) FR2153390A1 (en)
IT (1) IT956627B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1964811B1 (en) * 2007-02-28 2016-11-30 China Petrochemical Development Corporation Method for preparing hydroxylammonium phosphate

Also Published As

Publication number Publication date
IT956627B (en) 1973-10-10
FR2153390A1 (en) 1973-05-04
DE2222120B2 (en) 1976-07-01
FR2153390B1 (en) 1976-08-13
DE2222120A1 (en) 1973-04-05

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