ES373855A1 - Catalyst preparation - Google Patents

Catalyst preparation

Info

Publication number
ES373855A1
ES373855A1 ES373855A ES373855A ES373855A1 ES 373855 A1 ES373855 A1 ES 373855A1 ES 373855 A ES373855 A ES 373855A ES 373855 A ES373855 A ES 373855A ES 373855 A1 ES373855 A1 ES 373855A1
Authority
ES
Spain
Prior art keywords
solution
compound
precipitated
support
valence
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
ES373855A
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of ES373855A1 publication Critical patent/ES373855A1/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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation

Landscapes

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

Abstract

Process for the preparation of a catalyst combination on a support, according to which a catalytically active element is precipitated, either as a compound or to the elemental state, from an aqueous solution of a compound preferably of the catalytically active element, preferably on a material support suspended in the solution, lowering -by means of a reducing agent- the valence of the ions of the element to be precipitated, this procedure being characterized by -with such agitation that the concentration of the ions of the previous valence and the New will be barely a function of the situation in the solution - the amount of reducing agent present in the solution at any time and the temperature or temperature change over time are controlled in such a way that - with the adjustment of the pH to an appropriate value for the combination of the support material and the compound to be precipitated - precipitation is carried out of a compound, not in the mass of the solution, but on the surface of the support suspended in the solution, and at a gradual rate. (Machine-translation by Google Translate, not legally binding)
ES373855A 1968-11-23 1969-11-24 Catalyst preparation Expired ES373855A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6816777A NL6816777A (en) 1968-11-23 1968-11-23

Publications (1)

Publication Number Publication Date
ES373855A1 true ES373855A1 (en) 1972-02-16

Family

ID=19805240

Family Applications (1)

Application Number Title Priority Date Filing Date
ES373855A Expired ES373855A1 (en) 1968-11-23 1969-11-24 Catalyst preparation

Country Status (10)

Country Link
JP (2) JPS5541145B1 (en)
AT (1) AT300737B (en)
BE (1) BE742099A (en)
CH (1) CH551800A (en)
DE (1) DE1958952C3 (en)
ES (1) ES373855A1 (en)
FR (1) FR2023994A1 (en)
GB (1) GB1282138A (en)
NL (1) NL6816777A (en)
SE (1) SE370332B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490219A (en) * 1982-10-07 1984-12-25 International Business Machines Corporation Method of manufacture employing electrochemically dispersed platinum catalysts deposited on a substrate
WO1985003241A1 (en) * 1984-01-30 1985-08-01 Eka Ab Filler or a support for catalytically active substances, a process for producing said filler or support, a catalyst produced from said support, and the use of said catalyst
SE8400426L (en) * 1984-01-30 1985-07-31 Eka Ab SET TO MAKE FINE PARTICLES WITH A COATING OF METAL OR METAL COMPOUND, SPECIFICALLY A CATALYTIC ACTIVE SUBSTANCE
SE8402916L (en) * 1984-01-30 1985-07-31 Eka Ab CATALYTIC EXHAUST CLEANER AND WAY TO MAKE IT
NL8402096A (en) * 1984-07-02 1986-02-03 Unilever Nv HYDROGENATION CATALYSTS.
GB8620982D0 (en) * 1986-08-29 1986-10-08 Shell Int Research Catalyst preparation
US7381683B1 (en) 2004-10-28 2008-06-03 Nanostellar, Inc. Method of producing multi-component catalysts
US7381682B1 (en) 2004-10-28 2008-06-03 Nanostellar, Inc. Method for producing heterogeneous catalysts containing metal nanoparticles

Also Published As

Publication number Publication date
DE1958952C3 (en) 1979-09-20
DE1958952A1 (en) 1970-09-10
GB1282138A (en) 1972-07-19
JPS54155189A (en) 1979-12-06
NL6816777A (en) 1970-05-26
BE742099A (en) 1970-05-25
JPS5541145B1 (en) 1980-10-22
CH551800A (en) 1974-07-31
AT300737B (en) 1972-08-10
DE1958952B2 (en) 1979-01-25
FR2023994A1 (en) 1970-08-21
SE370332B (en) 1974-10-14

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