Abstract: The invention is directed to a process for preparing a pulverulent compound of the formula NiaM1bM2cOx(OH)y where M1 is Fe, Co, Zn, Cu or mixtures thereof, M2 is Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si or mixtures thereof, having the following steps: a) providing at least a first starting solution and a second starting solution, b) combining of at least the first starting solution and the second starting solution in a reactor and producing a homogeneously mixed reaction zone having a specific mechanical power input of at least 2 watt/liter and producing a product suspension containing insoluble product and a mother liquor which is supersaturated by setting of an excess of alkali and has a pH of 10-12, c) partial separating the mother liquor from the precipitated product to set solids contents of at least 150 g/l in the suspension.

Abstract: The invention is directed to a process for preparing a pulverulent compound of the formula NiaM1bM2cOx(OH)y where M1 is Fe, Co, Zn, Cu or mixtures thereof, M2 is Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si or mixtures thereof, having the following steps: a) providing at least a first starting solution and a second starting solution, b) combining of at least the first starting solution and the second starting solution in a reactor and producing a homogeneously mixed reaction zone having a specific mechanical power input of at least 2 watt/liter and producing a product suspension containing insoluble product and a mother liquor which is supersaturated by setting of an excess of alkali and has a pH of 10-12, c) partial separating the mother liquor from the precipitated product to set solids contents of at least 150 g/l in the suspension.

Abstract: 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·?m. 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.

Abstract: 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.

Abstract: 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·?m. 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.

Abstract: 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.

Abstract: 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.