The invention disclosed the preparing method of selective hydrogenating catalyst of unsaturated hydrocarbon.
本发明公开了一种不饱和烃选择性加氢催化剂的制备方法。
The titer of the gardenia yellow pigment obtained by the preparing method of gardenia yellow pigment is high.
本发明栀子黄色素的制备方法获得的栀子黄色素效价高。
The preparing method comprises brushing material, solid-phase composition, diffusion annealing and cold rolling.
其制造方法包括刷料、固相复合、扩散退火、和冷轧工艺步 骤。
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