国家/地区 中国（2）
IPC部 C（2）
IPC大类 C22（2）
IPC小类 C22B（2）
IPC
发明人 LIU X（2）
公开年 2022（2）
申请年 2022（2） 
专利权人

Preparing fine-grained high-purity oxygen-free copper plate comprises e.g. cleaning hearth of electron beam cooling bed smelting furnace, heating hot-pressed slab, milling milled hot-rolled billet up and down, annealing semi-finished sheet material, and cutting according to product shape.

WANG W, WANG C, LIU X, LIU Q, ZHOU B, WANG J, SUN J, LIANG X, WANG Q

Composite material useful for extracting niobium, preferably carbon-based polyaniline composite material prepared by in-situ polymerization and deposition of polyaniline in pores of carbon material by using carbon material as porous matrix.

LIN Z, ZHANG C, LIU X, TIAN Z, DONG F, JIN Z, REN H, SU W