摘要:
A process for water removal and/or recycling of sodium sulfate and/or sodium dithionate containing liquors derived from processing cobalt resource material essentially free of lithium comprising the steps of precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulfate and sodium dithionate and removal of the crystals, followed by heating of the crystals to anhydrous sodium sulfate, sulphur dioxide and water and then separating the anhydrous sodium sulfate.
摘要:
A method according to an embodiment is for recovering a valuable metal from a waste electrode material of a lithium secondary battery by using lithium carbonate. An anode-cathode mixed electrode material that has been separated by draining, crushing, screening, and sorting a waste lithium secondary battery is preprocessed. A precipitation operation performed by adding lithium carbonate (Li2CO3) to a metal melt acquired by performing sulfuric acid dissolution using sulfuric acid. A valuable metal such as nickel, cobalt, manganese, aluminum, and copper is recovered as a residue in the form of a carbonate composite, and a lithium sulfate (Li2SO4) aqueous solution including lithium is recovered as a filtrate.
摘要:
The invention provides a process for production of fine spherical particles of a carbonate or a hydroxide of nickel, cobalt or copper which comprises: dissolving a carbonate or a hydroxide of nickel, cobalt or copper having the general formula (I) M(CO3)x/2.(OH)y wherein M represents Ni, Co or Cu, and x and y are numerals satisfying the followings: 0≦x≦2, 0≦y≦2 and x+y=2, in aqueous ammonia, converting the resulting solution to a W/O emulsion containing droplets of the solution in a non-aqueous medium, and then removing volatile components including ammonia from within the droplets, thereby precipitating a basic carbonate or a hydroxide of a metal selected from nickel, cobalt and copperin the droplets. The fine spherical particles of a carbonate or a hydroxide of nickel, cobalt or copper obtained according to the process of the invention are especially useful as a precursor for the manufacture of uniform, fine spherical particles of nickel, copper or cobalt metal, as well as useful as themselves as a catalyst for use in organic synthesis, a carrier, a pigment, a filler or a glaze.
摘要翻译:本发明提供一种生产镍,钴或铜的碳酸盐或氢氧化物的细球形颗粒的方法,其包括:将通式(I)的其中M表示Ni的镍,钴或铜的碳酸盐或氢氧化物溶解, Co或Cu,x和y是在氨水中将满足以下条件的数字:0 <= x <= 2,0 <= y <= 2和x + y = 2,将所得溶液转化成W / O乳液 在非水介质中含有溶液的液滴,然后从液滴内除去包括氨的挥发性组分,从而沉淀出液滴中选自镍,钴和铜的金属的碱性碳酸盐或氢氧化物。微球形颗粒 根据本发明的方法获得的镍,钴或铜的碳酸盐或氢氧化物特别可用作制造镍,铜或钴金属的均匀的细小球形颗粒的前体,并且作为其自身可用作 用于有机合成的催化剂,载体,颜料,填料或釉料。
摘要:
The present disclosure discloses a preparation method of platy aluminum-doped cobalt carbonate and use thereof. The preparation method includes the following steps: S1: mixing a cobalt salt, an aluminum salt, and a polyhydroxy compound to prepare a mixed solution; S2: mixing the mixed solution with an ammonium bicarbonate solution, adjusting a pH, and heating and stirring to allow a reaction to obtain a seed crystal solution; and S3: adding the mixed solution and an ammonium bicarbonate solution to the seed crystal solution, adjusting a pH, and heating and stirring to allow a reaction, during which a solid content in a slurry is controlled at 20% to 40% until a particle size in the slurry grows to a target value; and separating out, washing, and drying a solid phase to obtain the platy aluminum-doped cobalt carbonate.
摘要:
The present invention relates to basic cobalt(II) carbonate, agglomerated from fine primary particles and of general composition Co[(OH)2]a[CO3]1−a, where 0.1≦a≦0.9, and to spheroidal cobalt(II) hydroxide, to a process for producing them and to their use.
摘要翻译:本发明涉及碳酸碱式钴(II),其由细一级颗粒凝聚,并且具有通常组成的Co [(OH)2] a [CO 3] 1-a,其中0.1 <= a <= 0.9,和球形钴( II)氢氧化物,用于生产它们和使用它们的方法。
摘要:
The present invention relates to processes for the production of cobalt(II) carbonates corresponding to the general formula Co[(OH)2]a[CO3]1−a, cobalt(II) carbonates and cobalt(II) oxalate carbonates obtainable by the process and the use thereof.
摘要翻译:本发明涉及生产相应于通式Co [(OH)2] a [CO 3] 1-a,碳酸钴(II)和碳酸钴(II))的碳酸钴(II)的方法, 过程及其用途。
摘要:
An ammonium carbonate leach solution containing dissolved nickel and/or cobalt values is sprayed into a flash chamber to flash a portion of the ammonia therefrom, resulting in the production of a fine precipitate of nickel and/or cobalt carbonate. The solution is introduced into a stripping tower wherein remaining ammonia is stripped therefrom to precipitate further nickel and/or cobalt carbonate on the previously precipitated carbonate, which function as nuclei to reduce deposition in the column.