20results about "Nickel carbonyls" patented technology

The invention discloses a method for extracting iron and nickel by comprehensively recycling nickel smelting slag through carbonylation metallurgy, which specifically comprises the following steps: 1) carrying out reduction treatment on the nickel smelting slag to obtain a metal alloy; (2) the metal alloy is subjected to powder processing, so that metal alloy powder is obtained; (3) the metal alloy powder is treated through a mineral processing technology, so that metal alloy concentrate and tailings are obtained; 4) activating the metal alloy concentrate to obtain activated metal alloy powder; (5) the activated metal alloy powder reacts with carbon monoxide in a pressurized container, and a nickel carbonyl, carbonyl iron and carbon monoxide mixture and carbonylation tailings are obtained; and 6) carrying out subsequent condensation-rectification-decomposition treatment on the mixture of carbonyl nickel, carbonyl iron and carbon monoxide to obtain carbonyl nickel powder, carbonyl iron powder and carbon monoxide. According to the method, the high-purity carbonyl nickel powder can be extracted from the stockpiled nickel smelting slag, and high-valued application of iron can be achieved.

A method for manufacturing a cathode active material according to the present invention comprises the steps of: preparing a cathode active material precursor; setting the temperature in heat treatment equipment to a target firing temperature; and firing the cathode active material precursor, a lithium salt, and a dopant material at the target firing temperature using the heat treatment equipment to manufacture the cathode active material, wherein the target firing temperature is controlled according to the dopant material. The step for setting the temperature in the heat treatment equipment to a target firing temperature may include: a step for obtaining the difference value between a set firing temperature of the heat treatment equipment and the actual firing temperature in the heat treatment equipment; a step for constructing a DB on the basis of the difference value; and a step for using the DB to set the set firing temperature of the heat treatment equipment so that the target firing temperature matches the actual firing temperature in the heat treatment equipment.

This invention relates to the production of nickel tetracarbonyl and cobalt tricarbonyl nitrosyl from mixed metal hydroxide precipitate (MHP) comprising nickel, cobalt, and manganese.

The present invention relates to a process for the recovery of transition metals from battery materials comprising (0.1) providing a battery material which comprises oxidic nickel and / or cobalt compounds, (1.1) heating the battery material above 350 °C to yield a reduced material which contains nickel and / or cobalt in elemental form, (2.1) carbonylating the reduced material with carbon monoxide optionally in the presence of a reactive gas to yield a solid carbonylation residue and a volatile carbonyl which comprises nickel and / or cobalt carbonyl containing compounds, and (3.1) separating the volatile carbonyl from the solid carbonylation residue by evaporation.

The invention discloses a method for preparing carbonyl nickel and carbonyl iron by using a fluidized bed carbonylation process, which solves the problems of low carbonylation efficiency and incapability of high-valued utilization of iron in part of raw materials, and specifically comprises the following steps: 1) pulverizing a material containing nickel and iron by using a vacuum gas atomization technology; 2) treating the ferronickel-containing material powder through a fluidized bed carbonylation kettle to obtain crude carbonyl ferronickel and carbonylation tailings; 3) treating the crude carbonyl ferronickel through a three-stage condensation process to obtain a carbonyl nickel solution, a carbonyl iron solution and a carbonyl nickel and carbonyl iron mixed solution; and (4) the nickel carbonyl liquid, the iron carbonyl liquid and the mixed liquid of the nickel carbonyl and the iron carbonyl are subjected to rectification and segmented decomposition processes to obtain a nickel product and an iron product, finally, development of the carbonylation metallurgical raw materials is achieved, and clean and efficient treatment of the raw materials containing the nickel and the iron is also achieved.

The present invention relates to a process for the recovery of transition metals from battery materials comprising (0.1) providing a battery material which comprises oxidic nickel and / or cobalt compounds, (1.1) heating the battery material above 350° C. to yield a reduced material which contains nickel and / or cobalt in elemental form, (2.1) carbonylating the reduced material with carbon monoxide optionally in the presence of a reactive gas to yield a solid carbonylation residue and a volatile carbonyl which comprises nickel and / or cobalt carbonyl containing compounds, and (3.1) separating the volatile carbonyl from the solid carbonylation residue by evaporation.

To provide a method for producing nickel particles suitable for use as a raw material for a cathode active material for a secondary battery.SOLUTION: A production process of nickel particles as an example of an embodiment includes: a process of melting a nickel source to obtain a molten metal; and a process of powderizing the molten nickel contained in the molten metal to obtain nickel particles having a purity of 90% or higher by an atomization method in which a gas or a water-based medium is sprayed on the molten metal. In the production process, a metal that is more easily oxidized than nickel may be melted together with the nickel source to remove an oxide of the metal formed.SELECTED DRAWING: Figure 1

The present invention relates to a method for recovering transition metals from battery materials, the method comprising the steps of: (1.1) providing a battery material comprising nickel oxide and / or cobalt oxide compounds; (1.1) heating the battery material to greater than 350°C to produce a reduced material containing nickel and / or cobalt in elemental form; (2.1) carbonylating the reduced material with carbon monoxide, optionally in the presence of a reactive gas, to produce a solid carbonyl residue and volatile carbonyls comprising nickel carbonyl and / or cobalt carbonyl-containing compounds; and (3.1) separating the volatile carbonyls from the solid carbonyl residue by evaporation.

This invention relates to the production of nickel tetracarbonyl from mixed metal hydroxide precipitates (MHP) comprising nickel, cobalt, and manganese.

The present application relates to the technical field of gasification metallurgy, and particularly relates to a production and preparation method of high-dissolution-performance sulfur-carbonyl nickel pellets, to solve the problem that the content of impurities in sulfur-containing nickel metal is high, the uniformity of S element distribution in the sulfur-containing nickel metal is poor, and the dissolution stability, plating solution stability and plating layer quality are greatly affected when traditional electrolytic method or smelting method is used to smelt nickel. The method can effectively remove the difficult-to-remove impurities in the group VIII metal and CO gas through selective reaction, and has lower metal impurities than traditional electrolytic method and smelting method. The high-dissolution-performance sulfur-carbonyl nickel pellets are prepared through chemical atomic vapor deposition reaction, and the S element in the sulfur-containing nickel metal is more uniformly distributed, so that the dissolution stability, plating solution stability and plating layer quality are better, thereby effectively reducing the local passivation of anode dissolution, plating solution composition fluctuation and plating layer performance difference caused by uneven S distribution.

The invention discloses a preparation method and application of a carbonylation nickel-based supported catalyst, and belongs to the technical field of catalysts. The preparation method comprises the following steps: carrying out pretreatment of roasting and acid treatment on a carrier; heating the pretreated carrier to 100-150 DEG C in an inert atmosphere, and introducing nickel tetracarbonyl steam, so that the nickel tetracarbonyl steam is thermally decomposed on the surface and in pore channels of the carrier and nickel particles are deposited; and then carrying out heating purification treatment to obtain the final catalyst. By adopting the chemical vapor deposition method, highly uniform dispersion of the active metal nickel on the carrier is realized, and the method is simple in process and environment-friendly. The prepared catalyst has the characteristics of small nickel particle size, high dispersity, strong carrier action and the like, and shows high activity, high selectivity and excellent stability in carbon dioxide hydrogenation methanation and other reactions. Carbon monoxide generated by decomposition can be recycled, and the principle of green chemistry is met.

Methods and reactor systems are provided for extracting metals, such as nickel, cobalt, and iron, from reduced, activated metal compounds (“feed materials”). Feed materials may be derived from mixed hydroxide precipitate. Feed materials and carbon monoxide gas are delivered into an extraction reactor of a reactor system, such as a shell tube heat exchanger. A flow path therein directs the feed material downward and the carbon monoxide gas upward, enabling contact therebetween, forming at least one metal carbonyl gas and a solid residue therein. The flow path further directs the upward flow of metal carbonyl gases, and the downward flow of the residue. Methods and reactor systems may further purge the residue: using nitric oxide to convert any remaining dicobalt octacarbonyl therein to cobalt tricarbonyl nitrosyl gas; using an inert gas to removing any cobalt tricarbonyl nitrosyl therein; and using an inert gas-oxygen mixture, to form a passivated residue.

The present disclosure relates to improvements in the working up of mattes comprising nickel, copper, cobalt, and iron.

This invention relates to the recovery of nickel and cobalt from lithium ion battery materials comprising nickel, cobalt, and manganese, such as cathode active materials (CAM) and / or black mass (BM) derived from battery materials.

The invention discloses a precious metal secondary resource enrichment method, and belongs to the technical field of precious metal metallurgy. The method comprises the following steps: crushing a precious metal secondary resource, mixing the crushed precious metal secondary resource with low-grade ferronickel, a composite modifier and a reducing agent, and smelting and enriching to obtain a ferronickel alloy containing precious metal; the alloy is subjected to carbonylation separation after being atomized and pulverized, ferronickel is converted into a carbonyl ferronickel product, and precious metal is enriched in slag; and finally, the carbonylation slag is subjected to controlled electric chlorination purification, and high-grade precious metal concentrate is obtained. By means of the short process of smelting enrichment, carbonylation separation and chlorination purification, efficient recovery of precious metal (the yield is larger than or equal to 98%, and the enrichment ratio is larger than or equal to 160 times) and high-valued utilization of the trapping agent ferronickel are achieved, and the method has the advantages of being short in process, low in cost, environmentally friendly and high in resource utilization rate and is particularly suitable for treatment of complex precious metal secondary resources.

The invention relates to the technical field of carbonyl compounds, and provides a continuous preparation method of a metal carbonyl compound. The method comprises the following steps: continuously introducing metal powder and CO into a high-pressure tubular reactor, and carrying out carbonylation reaction to obtain a metal carbonyl compound; and the high-pressure tubular reactor is vertically fixed underground. According to the invention, the high-pressure tubular reactor is vertically fixed underground, so that the problem that the long high-pressure tubular reactor is difficult to fix above the ground is solved, the operation safety is better, the explosion risk is small, the reaction of metal powder and CO is more sufficient, and the reaction rate and the product yield are improved. In conclusion, continuous feeding and continuous discharging can be achieved, the production efficiency is high, the cost is low, the technology is simple, and the method is suitable for large-scale production. Results of the embodiment show that continuous preparation of the metal carbonyl compound can be achieved, and the yield can reach 98.5% or above when the reaction lasts for 20 h.

The invention discloses a method for comprehensively recycling a waste nickel net through a carbonylation method. According to the method, after the waste nickel net is subjected to mechanical crushing, screening, cleaning and drying pretreatment, a carbonyl compound removal tower of a vertical structure is filled with the waste nickel net, multiple material layers are arranged in the tower, and all the material layers are filled with pretreated waste nickel net particles. The carbonylation synthesis production exhaust gas is introduced into the tower, under the conditions that the temperature is 300-450 DEG C and the pressure is 0.1-0.2 MPa, waste nickel net particles are used as a reaction matrix, pyrolytic deposition of carbonyl compounds in the exhaust gas is achieved, and meanwhile nickel resources are recycled. And purifying the gas subjected to pyrolysis deposition to obtain high-purity CO, recycling the high-purity CO in the carbonylation synthesis process, participating the nickel-deposited material in the carbonylation synthesis reaction, and carrying out rectification decomposition to obtain a high-purity carbonyl product. According to the method, collaborative recycling of the waste nickel net and the carbonylation synthesis exhaust gas is achieved, the resource utilization rate is high, and the method is environmentally friendly, economical and remarkable in industrial application value.

The invention relates to a nickel carbonyl synthesis method, which comprises: carrying out a carbonylation reaction on a nickel-containing raw material and a CO gas in a reactor, introducing a hydrogen sulfide-containing mixed gas as a catalyst, controlling the reaction temperature to be 165-195 DEG C, the pressure to be 3.5-6.5 MPa and the reaction time to be 6-10 h, carrying out real-time monitoring through a pressure sensor, and dynamically adjusting the pressure fluctuation to be + / -0.5 MPa, the temperature control precision is + / -2 DEG C. According to the method, the molar ratio of the raw materials is optimized, the reaction efficiency and the product quality are improved, the catalyst is introduced to accelerate the reaction process, and the proportion of nickel, sulfur and other elements is adjusted, so that higher nickel extraction rate and lower reaction time are realized.

The present disclosure relates to the production of nickel tetracarbonyl and cobalt tetracarbonyl hydride from mixed metal hydroxide precipitate (MHP) comprising nickel, cobalt, and manganese.