Preparation method of support type palladium film used for high purity hydrogen purification

Preparation method of support type palladium film used for high purity hydrogen purification

  • CN 1,628,898 B
  • Filed: 12/19/2003
  • Issued: 08/29/2012
  • Est. Priority Date: 12/19/2003
  • Status: Active Grant
First Claim
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1. preparation method who is used for the brace type palladium film of high-purity hydrogen purifying comprises the following step:

  • Provide a porous stainless steel tube as supporter;

    Pre-treatment is ground on surface to this supporter;

    Carry out metal filled to this supporter;

    AndOn through the supporter that grinds pre-treatment, form a palladium film;

    Wherein this grinding pre-treatment comprises following at least three steps;

    Carry out mechanical polishing with sand paper or high frequency oscillation mode, carry out electricity again and grind;

    With the pickling under room temperature of 8~

    10N hydrochloric acid solution;

    AndUnder 50~

    70 ℃

    , carry out activation.

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