Abstract: A thermoplastic polyolefin composition comprises: (A) a polypropylene polymer; (B) an elastomer component; (C) an additive component; and (D) a scavenger component comprising a polyacetoacetate compound having the Formula (I) defined herein and calcium carbonate. And an article is made from the thermoplastic polyolefin composition.

Abstract: A display device, including a backlight module (1). The backlight module (1) includes an optical film layer (2), the optical film layer (2) includes at least two diffusers (21) stacked in sequence, and the haze of each diffuser (21) is 80%-99%. The backlight module (1) further includes an LED light source (3), and the optical band of the LED light source (3) is greater than 455 nm. The display device further includes a cover plate (5) and at least one anti-reflection layer (7), the cover plate (5) is provided with an atomization layer (51), and the anti-reflection layer (7) is located on the side of the cover plate (5) facing away from a display panel (4).

Abstract: Disclosed in the present invention is a method for recovering nickel from iron-aluminum slag obtained by battery powder leaching. The method comprises the following steps: adding a sulfuric acid solution into an iron-aluminum slag to dissolve, so as to obtain a sulfate solution; then adding an oxidizing agent; adding ammonia water and carbonate into the oxidized sulfate solution; adjusting the pH to 1.0-3.2 for reaction; separating ferric hydroxide to precipitate to obtain an iron-removed solution; adding carbonate into the iron-removed solution, adjusting the pH to 3.2-5.5 for reaction; separating aluminum hydroxide to precipitate to obtain an aluminum-removed solution; adding ammonia water to the aluminum-removed solution, adjusting the pH to 7.0-8.8 for reaction; washing and removing impurities to obtain a nickel complex; adding an oxidizing agent to the nickel complex to break the complex, so as to obtain a nickel-containing solution.

Abstract: The present invention provides a high-efficient magnesium ion removal system for salt lake brine based on in situ alkali production using bipolar membrane electrochemical process, it is constructed with cathode, cathode cell, anode, anode cell, and anion exchange membranes, bipolar membranes, acid cells, alkali cells, mesh materials for precipitate aggregation, acid-washing cells.

Abstract: A method of preparing lithium iron phosphate by recycling and utilizing waste batteries. The method may include pre-processing a waste lithium iron phosphate battery to obtain lithium iron phosphate powder, adding alkaline liquid to the lithium iron phosphate powder, and filtering to obtain a filter residue; an iron source, a lithium source or a phosphorus source to the filter residue, and performing ball milling to obtain a ball-milled product; preparing a carbon source solution, and adding a surfactant to the carbon source solution to obtain a mixed solution; mixing the ball-milled product and the mixed solution, performing spray pyrolysis to obtain a high-temperature powder, spraying atomized water to the high-temperature powder to remove impurities, and then calcining to obtain a finished product of lithium iron phosphate.

Abstract: Disclosed in the present invention is a method for preparing nickel sulfate from a nickel-iron-copper alloy. The method comprises: in a high-pressure oxygen environment, mixing a nickel-iron-copper alloy crushed material, aqueous ammonia, ammonium sulphate, and a corrosion assisting agent, leaching, then performing solid-liquid separation on the leached slurry, adding a precipitant into a filtrate, and performing ammonia distillation to obtain a nickel-containing leachate; then adding an extractant into the nickel-containing leachate to extract nickel so as to obtain a nickel-containing extraction organic phase; and then adding sulfuric acid into the nickel-containing extraction organic phase to perform back extraction of nickel so as to obtain a nickel sulfate solution.

Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.

Abstract: A metal sulfide negative material of a sodium ion battery and a preparation method thereof. The material has porous nanoparticles with a particle size of 5 nm to 500 nm, and the metal sulfide negative material of the sodium ion battery is at least one of zinc sulfide or copper sulfide. The preparation method includes the steps of preparing a mixed solution of stannous chloride and metal salt, adding polyvinylpyrrolidone into the mixed solution to obtain a solution A, introducing reaction gas into the solution A, aging after the reaction to obtain a precipitate, and soaking the precipitate in a persulfide solution to obtain the metal sulfide sodium ion battery negative material.

Abstract: A metal sulfide negative material of a sodium ion battery and a preparation method thereof. The material has porous nanoparticles with a particle size of 5 nm to 500 nm, and the metal sulfide negative material of the sodium ion battery is at least one of zinc sulfide or copper sulfide. The preparation method includes the steps of preparing a mixed solution of stannous chloride and metal salt, adding polyvinylpyrrolidone into the mixed solution to obtain a solution A, introducing reaction gas into the solution A, aging after the reaction to obtain a precipitate, and soaking the precipitate in a persulfide solution to obtain the metal sulfide sodium ion battery negative material.

Abstract: A doped sodium vanadium phosphate and a preparation method and application thereof. Preparation steps of a nitrogen-doped peony-shaped molybdenum oxide in raw materials of the doped sodium vanadium phosphate are as follows: adding a regulator into a molybdenum-containing solution for reaction, concentrating and thermal treatment to obtain a peony-shaped molybdenum oxide; and dissolving the peony-shaped molybdenum oxide in a conditioning agent, and adding an amine source for standing, centrifuging, washing and heat treatment, thus obtaining the nitrogen-doped peony-shaped molybdenum oxide.

Abstract: A reaction kettle cleaning apparatus, includes a kettle body and a stirrer, the stirrer being located in the kettle body and including a stirring rod and a stirring portion, where a movable frame is disposed on the stirring rod and is movable along the stirring rod; and a cleaning device is disposed on the movable frame is configured to clean the kettle body; and the reaction kettle cleaning apparatus further includes a movable control apparatus configured to control the movable frame to move.

Abstract: A disassembling and discharging device for battery recycling includes a crushing assembly, a high pressure tank, at least one pressure relief tank, and a filtering tank. The crushing assembly is provided with a first feed port and a first discharge port communicated with the first feed port; the high pressure tank is provided with a first inner cavity for containing discharging liquid, and the first inner cavity is communicated with the first discharge port; the pressure relief tank is provided with a second inner cavity, and the second inner cavity is communicated with the first inner cavity; and the filtering tank is provided with a third inner cavity, and the third inner cavity is communicated with the second inner cavity.

Abstract: A fire-extinguishing agent capable of extinguishing the combustion of aluminum slag, and a preparation method therefor and the use thereof. The fire-extinguishing agent comprises the following raw materials: a sulfate, a chlorine salt, a mineral, a silica gel, a surfactant and a stearate. The main materials of sulfate and chlorine salt are solid waste containing sulfate and chlorine salt obtained by separating high-salt wastewater generated during a resynthesis process of a positive electrode material of a waste lithium battery. The solid waste containing sulfate and chlorine salt is used as a material for a fire-extinguishing agent, which can effectively recycle waste resources.

Abstract: Disclosed are a preparation method of a carbon dioxide capture agent and an application thereof. The method includes: mixing a graphite dispersion, an organic acid solution, a metal salt solution and a silica sol to obtain an organic-inorganic composite gel; standing and aging the organic-inorganic composite gel, drying the same and then carbonizing the same by microwave in a mixed atmosphere of inert gas and sulfur dioxide to obtain an intermediate product; and subjecting the intermediate product to acid washing or alkali washing to obtain a defective carrier, then mixing the defective carrier with an amine substance for ultrasonic treatment and drying to obtain the carbon dioxide capture agent.

Abstract: Disclosed is a preparation method for a Prussian blue sodium-ion battery positive electrode material, comprising: adding a first nonionic surfactant and an antioxidant into a sodium ferrocyanide solution to obtain a first solution; adding a second nonionic surfactant into a transition metal salt solution to obtain a second solution; in a protective atmosphere, adding the second solution into the first solution for a precipitation reaction; aging after the reaction has finished; collecting a precipitate, washing same, and carrying out vacuum drying on the washed precipitate; then soaking same in an alcohol solution containing sodium alkoxide; and then filtering same and steam drying to obtain a Prussian blue sodium ion battery positive electrode material. The method may relieve vacuum drying pressure and shorten drying time.

Abstract: A layered sodium ion battery positive electrode material and a preparation method therefor. The chemical formula of the layered sodium ion battery positive electrode material is NaxMnO2-a(MO4)a, wherein 0<x?1, 0.01?a?0.2, and M is one or two of W and Mo. The preparation method comprises: preparing a manganese salt solution and a basic potassium permanganate solution mixed with an M element material, wherein the M element material is one or two of molybdate or tungstate; adding the basic potassium permanganate solution to the manganese salt solution, and potassium permanganate solution to the manganese salt solution, and after a reaction is finished, carrying out solid-liquid separation to obtain a solid material; and washing and drying the solid material, mixing the solid material with a sodium source, and then sintering same to obtain a layered sodium ion battery positive electrode material.

Abstract: A gas absorption box includes a box body, at least one gas absorption member and an outer housing assembly, the box body has an accommodating cavity; the gas absorption member is elastic and is provided with a first inner cavity, and the first inner cavity is in communication with the outside of the box body; and the outer housing assembly is arranged in the accommodating cavity and is elastically connected to the box body, and the outer housing assembly has a second inner cavity for accommodating a gas absorbent, the second inner cavity being in communication with the first inner cavity, and the gas absorption member being capable of absorbing gas for the second inner cavity. When battery powder or some positive-electrode materials for batteries are transported, hydrogen generated by the battery powder or some positive-electrode materials for batteries gathers towards the upper portion of a ton bag.

Abstract: The present disclosure discloses a method for extracting lithium from waste lithium batteries, which comprises: leaching positive electrode powder of the waste lithium battery in hydrochloric acid, and obtaining leaching solution by filtering; removing copper and iron from the leaching solution, and then introducing hydrogen sulfide gas for reaction, and performing solid-liquid separation to obtain first filter residue and first filtrate; adding potassium permanganate to the first filtrate, and performing solid-liquid separation to obtain second filter residue and second filtrate; performing spray pyrolysis on the second filtrate to obtain solid particles and tail gas, washing the solid particles with water to obtain a lotion, washing and collecting the tail gas and then mixing the tail gas with the lotion to obtain lithium salt solution.

Abstract: The present invention relates to a method for preparing nickel sulfate using low-nickel ferronickel is disclosed. The method comprises the following steps: (1) grinding ferronickel to obtain ferronickel powder, and then sintering the ferronickel powder with an oxidant to prepare ferronickel oxide powder; (2) adding sulfuric acid to the ferronickel oxide powder prepared in step (1), mixing, heating, and washing with water to prepare a sulfate salt water washing solution; (3) adding a base to the sulfate salt water washing solution prepared in step (2) to adjust the pH value, then adding a fluoride salt to form a precipitate, filtering to remove the precipitate, and drying the filtrate to obtain nickel sulfate. The method provided in the present invention can improve the efficiency of preparing nickel sulfate, reduce the loss of nickel, and prepare nickel sulfate with high purity, the content of Ni potentially reaching 19.73%-21.34%.

Abstract: Disclosed in the present invention is a method for extracting nickel from a high matte nickel leaching residue. The method comprises: firstly, adding a crushed material of a high matte nickel leaching residue to an organic solvent in which sulfur is dissolved, heating same for reaction, and carrying out solid-liquid separation to obtain a first filtrate and a first filter residue; adding the first filter residue to a copper sulfate solution, heating same for reaction, and carrying out solid-liquid separation to obtain a second filtrate and a second filter residue; and evaporating, condensing and concentrating the second filtrate, and filtering same to obtain copper sulfate crystals and a nickel-containing filtrate. Throughout the whole reaction, only a small amount of sulfur and copper sulfate are consumed, and the organic solvent can be recycled.