Catalyst prepared by impregnation with an aqueous solution containing oxy(hydroxy)de particles of a cation in interaction with a molecular species of a group viii metal

Catalyst prepared by impregnation with an aqueous solution containing oxy(hydroxy)de particles of a cation in interaction with a molecular species of a group viii metal

  • CN 101,234,350 A
  • Filed: 12/11/2007
  • Published: 08/06/2008
  • Est. Priority Date: 12/11/2006
  • Status: Active Application
First Claim
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1. method for preparing catalyst precarsor comprises following step:

  • 1) a) by under 5 ℃

    -100 ℃

    temperature, at volume is that V, concentration are in the sodium hydroxide solution of 0.01-1 mol, or be in the water of V at volume, or to its add volume be V '"'"' and concentration be the 0.01-1 mol sodium hydroxide solution, volume is in the water of V, is dissolved in soluble cation M in the aqueous solution Z+Precursor salt, preparation contains cation M Z+The hydroxyl oxidize composition granule and have the colloidal solution A of regulation pH, described cation M Z+Be selected from the cation on periodic table IIA, IIIA, IIIB, IVB and IVA hurdle, described cation concn is the 0.01-1 mol;

    1) b) use contains cation M Z+The hydroxyl oxidize composition granule and have the commercially available colloid aqueous solution (solution A) of regulation pH, described cation M Z+Be selected from the cation on periodic table IIA, IIIA, IIIB, IVB and IVA hurdle;

    2) being added under the pH condition of using in the step 1 in the precursor salt that contains VIII family metal and concentration are the aqueous solution B of 0.001-1 mol is the precursor salt of soluble metal.

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