摘要:
A process for preparing nickel hydroxide by alkaline precipitation from nickel salt solutions in the presence of complexing agents, in which the precipitation is carried out at at least two different locations in the same mother liquor with different precipitation kinetics at the different locations and the mother liquor is mixed prior to agglomeration of the precipitated primary crystals, is described.
摘要:
The invention relates to a device and a method for the production of compounds by precipitation of solids from solutions, the physical and chemical properties of the solid particles formed on precipitation being flexible and can be independently fixable. Custom products can thus be produced with very high space-time yields and a particulate nickel/cobalt mixed hydroxide of formula NixCo1-x(OH)2, with a BET surface area of 20 m2/g and a tap density of greater than 2.4 g/cm3.
摘要:
The invention relates to a process for recovering valuable metals from a superalloy which has the steps of digesting the superalloy in a salt melt. The salt melt contains 60-95% by weight of NaOH and 5-40% by weight of Na2SO4.
摘要翻译:本发明涉及一种从超级合金中回收有价值金属的方法,该方法具有在盐熔体中消化超合金的步骤。 盐熔体含有60-95重量%的NaOH和5-40重量%的Na 2 SO 4。
摘要:
The invention is directed to a pulverulent compound of the formula NiaM1bM2bOx(OH)y where M1 is at least one element selected from the group consisting of Fe, Co, Zn, Cu and mixtures thereof, M2 is at least one element selected from the group consisting of Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si and mixtures thereof, 0.3≦a≦0.83, 0.1≦b≦0.5, 0.01≦c≦0.5, 0.01≦x≦0.99 and 1.01≦y≦1.99, wherein the ratio of tapped density measured in accordance with ASTM B 527 to the D50 of the particle size distribution measured in accordance with ASTM B 822 is at least 0.2 g/cm3·μm. The invention is also directed to a method for the production of the pulverulent compound and the use as a precursor material for producing lithium compounds for use in lithium secondary batteries.
摘要翻译:本发明涉及式NiaM1bM2bOx(OH)y的粉末化合物,其中M1是选自Fe,Co,Zn,Cu及其混合物中的至少一种元素,M2是选自下组的至少一种元素 由Mn,Al,Cr,B,Mg,Ca,Sr,Ba,Si及其混合物组成,0.3< 1; a≦̸ 0.83,0.1和nlE; b≦̸ 0.5,0.01和nlE; c≦̸ 0.5,0.01和nlE; x& 和1.01≦̸ y≦̸ 1.99,其中根据ASTM B 527测量的轻敲密度与根据ASTM B 822测量的粒度分布的D50的比率为至少0.2g / cm 3·μm。 本发明还涉及一种生产粉状化合物的方法和用作锂二次电池中使用的锂化合物的前体材料的用途。
摘要:
The invention is directed to a pulverulent compound of the formula NiaM1bM2cOx(OH)y where M1 is at least one element selected from the group consisting of Fe, Co, Zn, Cu and mixtures thereof, M2 is at least one element selected from the group consisting of Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si and mixtures thereof, 0.3≦a≦0.83, 0.1≦b≦0.5, 0.01≦c≦0.5, 0.01≦x≦0.99 and 1.01≦y≦1.99, wherein the ratio of tapped density measured in accordance with ASTM B 527 to the D50 of the particle size distribution measured in accordance with ASTM B 822 is at least 0.2 g/cm3·μm. The invention is also directed to a method for the production of the pulverulent compound and the use as a precursor material for producing lithium compounds for use in lithium secondary batteries.
摘要翻译:本发明涉及式NiaM1bM2cOx(OH)y的粉末化合物,其中M1为选自Fe,Co,Zn,Cu及其混合物中的至少一种元素,M2为选自下组的至少一种元素 由Mn,Al,Cr,B,Mg,Ca,Sr,Ba,Si及其混合物组成,0.3< 1; a≦̸ 0.83,0.1和nlE; b≦̸ 0.5,0.01和nlE; c≦̸ 0.5,0.01和nlE; x& 和1.01≦̸ y≦̸ 1.99,其中根据ASTM B 527测量的敲击密度与根据ASTM B 822测量的粒度分布的D50的比率为至少0.2g / cm 3·μm。 本发明还涉及一种生产粉状化合物的方法和用作锂二次电池中使用的锂化合物的前体材料的用途。
摘要:
The invention relates to a powder compound of the formula NiaMbOx(OH)y, wherein M represents Co and at least one element selected from the group consisting of Fe, Zn, Al, Sr, Mg, or Ca and mixtures thereof, or M represents Co Mn and Fe, wherein 0.6≦a
摘要翻译:本发明涉及式NiaMbOx(OH)y的粉末化合物,其中M表示Co和选自Fe,Zn,Al,Sr,Mg或Ca的至少一种元素及其混合物,或M表示 Co Mn和Fe,其中0.6@a <1.0,0
摘要:
A mixed oxide catalyst includes a support material selected from the group comprising aluminum oxide, magnesium oxide, titanium oxide, and mixtures of aluminum oxide, magnesium oxide, and titanium oxide, and a catalyst active component comprising cobalt oxide and molybdenum oxide. The catalyst active component is nanodispersed in the support material.
摘要:
Powdery compounds of the formulation NiaMbOx(OH)y, a procedure to produce the same, and the use of the same as active material for nickel metal hydride batteries and/or as precursor for the production of lithium compounds for use in secondary lithium batteries.
摘要:
A process for preparing a pure ammonium perrhenate includes producing a first aqueous suspension containing an ammonium perrhenate. A stoichiometric amount of a nitric acid is added to the first aqueous suspension so as to produce a second suspension. The second suspension is introduced into a cathode space of an electrolysis cell. The electrolysis cell is divided by a cation-exchange membrane into the cathode space and an anode space. The nitric acid is cathodically reduced to a nitrous acid in the cathode space by applying an electric potential. The nitrous acid is reacted with ammonium ions of the ammonium perrhenate so as to form an aqueous perrhenic acid. Potassium ions are removed from the aqueous perrhenic acid. At least a stoichiometric amount of ammonia is added to the aqueous perrhenic acid so as to produce the pure ammonium perrhenate.
摘要:
A process for preparing a pure ammonium perrhenate includes producing a first aqueous suspension containing an ammonium perrhenate. A stoichiometric amount of a nitric acid is added to the first aqueous suspension so as to produce a second suspension. The second suspension is introduced into a cathode space of an electrolysis cell. The electrolysis cell is divided by a cation-exchange membrane into the cathode space and an anode space. The nitric acid is cathodically reduced to a nitrous acid in the cathode space by applying an electric potential. The nitrous acid is reacted with ammonium ions of the ammonium perrhenate so as to form an aqueous perrhenic acid. Potassium ions are removed from the aqueous perrhenic acid. At least a stoichiometric amount of ammonia is added to the aqueous perrhenic acid so as to produce the pure ammonium perrhenate.