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The effect of the distribution of the active groups in the surface and interlayer on the catalystic reactivity of the carbonylation with the zirconium phosphate-phosphate-Pd catalysts.
It is reported in this paper the diphenylphosphinization of the groups of NH,NH2 on the surface of zirconium (tri-ethylenetetraaminoethylphosphonate-phosphate) supports Zr(HP04)2-x［O3PCH2CH2(NHCH2CH2)3NH2］X·H2O(ZP-TETAEPA) with ehlorodiphenylphosphine as the phosphining agent, the diphenylphosphinized support ZP-TETAEPA-DPP and its corre-sponding supported-palladium catalysts ZP-TETAEPA-DPP-Pd are prepared, and characterized by IR, TG, DTA and elementary analysis. In this paper, it is put stress on the investigation of the effect of the x value which is implicate the distribution of the active groups in the surface and interlayer on the catalytic reactivity of the carbonylation with the ZP-TETAEPA-DPP-Pd catalysts. The generalization of this effect existing in other zirconium phosphate-phosphonate catalysts was also discussed.
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