国家/地区 中国（14）
IPC部 C（14） B（6）
IPC大类 C22（9） C01（6） B22（5）
IPC小类 C22C（9） B22F（5） C01G（5）
C22B（5）
IPC C22C027/02（5） C22B034/22（4） C22C035/00（4）
C22B005/10（3） C22C001/05（3） C22C001/10（3）
C22C029/16（3） B22F009/04（2） B22F009/24（2）
C01G031/00（2） C01G031/02（2）
发明人 ZHANG C（14）
公开年 2021（11） 2023（3）
申请年 2021（8）  2020（3）  2023（3） 
专利权人 HUNAN ZHONGXIN NEW MATERIAL TECHNOLOGY（14）

Purification of ammonium metavanadate for preparing vanadium pentoxide, involves dripping prepared modified magnesium chloride graphene dispersion reducing agent into ammonium metavanadate graphene solution, reacting, adding ammonium metavanadate crystal, and drying.

ZHANG C

Recycling and purifying sodium molybdatem in ammonium metavanadate comprises adding raw material ammonium metavanadate into hot water, dissolving, adding aqueous water, magnesium sulfate, filtering, and mixing with sodium silicate.

ZHANG C

Removing harmful elements in ammonium metavanadate by reduction method comprises e.g. obtaining modified graphene oxalate dispersion reducing agent, adding ammonium metavanadate graphene solution, reacting, filtering, adding ammonium metavanadate crystals, recrystallizing, separating, and drying.

ZHANG C

Preparation of vanadium-nitrogen alloy for steel, involves stirring and mixing raw material comprising vanadium oxide or vanadium salt, carbonaceous reducing agent, binder, nitrogen increasing agent, iron powder and stearic acid.

UNANNOUNCED I, ZHANG C

Vanadium alloy reduction smelting reducing agent for smelting ferrovanadium alloy, which is used in infrastructure construction of oil transportation/gas pipeline, building, bridge and rail, is graphene load silicon-zinc-aluminum alloy.

UNANNOUNCED I, ZHANG C

Powdery vanadium-nitrogen alloy useful in manufacturing process of steel, toughness, ductility and thermal fatigue resistance, comprises vanadium compound, carbonaceous reducing agent, binder, water and iron powder, where binder is polyester resin, hydroxy acrylic resin and polycarbonate diol.

UNANNOUNCED I, ZHANG C

Increasing nitrogen content of vanadium iron nitride used for e.g. high-strength thread steel, involves mixing vanadium source, carbonaceous reducing agent, iron powder, and tin dioxide, ball milling, vacuumizing, introducing mixed gas of nitrogen and ammonia and heating.

ZHANG C

One-step pyrolysis and carbon infiltration reduction of ammonium metavanadate for extracting vanadium, preferably for preparing vanadium pentoxide, comprises pre-treatment, ball milling, uniformly mixing, vacuumizing, and heating to obtain vanadium trioxide.

ZHANG C

Preparation of vanadium-nitrogen alloy by mixing vanadium trioxide, graphene and calcium sulfate crystal whiskers, adding ammonium chloride and ammonium sulfate, stirring, introducing nitrogen and trichloromethylsilane, and carbonizing.

ZHANG C

Production of vanadium-aluminum alloy comprises acid leaching vanadium slag, removing iron, adding potassium hydroxide solution into acidolysis liquid, ball milling vanadium containing filter residue, mixing with dilute sulfuric acid solution and carrying out thermal reduction.

ZHANG C