Abstract: A washing method for a ternary precursor is provided. According to the washing method, by means of multi-stage alcohol leaching, on the premise of ensuring that various properties of a washed material to be dried are identical to those of a material to be dried in a conventional washing process, the moisture contained in the washed material is less, and the washed material is easier to dry. In the washing method for the ternary precursor, a washing procedure in a back-end program of an existing washing procedure is replaced with at least two stages of echelon multistage washing procedures, and the mass fraction of an alcohol solution in a post-washing procedure is higher than that of the alcohol solution in a pre-washing procedure.

Abstract: Provided is a treatment method of waste water containing ferricyanide complex and oxalate, comprising under the condition of weak acidity to weak alkalinity, firstly adding an appropriate amount of divalent manganese ions to make the divalent manganese ions combined with ferrocyanide ions and part of oxalate ions in wastewater to form a mixed slag mainly composed of manganese ferrocyanide to achieve the purpose of removing most of the cyanide and a small amount of organic substance; adding excess divalent manganese ions to the first filtrate to make the divalent manganese ions fully combined with the oxalate in the wastewater to achieve the purpose of removing organic substance, and then adding an appropriate amount of alkali to the second filtrate to form precipitation to achieve the purpose of recovering manganese; then adding an appropriate amount of ferrous salt to achieve the purpose of removing the remaining cyanide and organic substance.

Abstract: Provided is a treatment method of waste water containing ferricyanide complex and oxalate, comprising under the condition of weak acidity to weak alkalinity, firstly adding an appropriate amount of divalent manganese ions to make the divalent manganese ions combined with ferrocyanide ions and part of oxalate ions in wastewater to form a mixed slag mainly composed of manganese ferrocyanide to achieve the purpose of removing most of the cyanide and a small amount of organic substance; adding excess divalent manganese ions to the first filtrate to make the divalent manganese ions fully combined with the oxalate in the wastewater to achieve the purpose of removing organic substance, and then adding an appropriate amount of alkali to the second filtrate to form precipitation to achieve the purpose of recovering manganese; then adding an appropriate amount of ferrous salt to achieve the purpose of removing the remaining cyanide and organic substance.

Abstract: The present disclosure relates to a method and an apparatus for handling an abnormal video call, a communication device and a storage medium. A method for handling an abnormal video call can include receiving a measurement configuration message sent by a network device during the video call in a current cell of a first network, determining data reception during the video call and determining a signal quality parameter of the current cell, and not reporting a B1 event in response to the data reception meeting a first condition and the signal quality parameter meeting a second condition.

Abstract: The present disclosure relates to a method and an apparatus for handling an abnormal video call, a communication device and a storage medium. A method for handling an abnormal video call can include receiving a measurement configuration message sent by a network device during the video call in a current cell of a first network, determining data reception during the video call and determining a signal quality parameter of the current cell, and not reporting a B1 event in response to the data reception meeting a first condition and the signal quality parameter meeting a second condition.

Abstract: Disclosed is a method for removing aluminum in a ternary battery material leachate by adopting an extraction method, which comprises the following steps: (1) saponification: mixing an extraction solvent with a saponifying agent to obtain a saponified extraction solvent; (2) extraction: mixing the ternary battery material leachate with the saponified extraction solvent to obtain a loaded organic phase and a raffinate; (3) back extraction: mixing the loaded organic phase with a back-extraction agent, followed by performing a back-extraction to obtain an organic phase and a back-extraction solution; the extraction solvent comprises an extracting agent and a diluent. The extraction method is adopted to separate nickel, cobalt, manganese and aluminum, having the advantages of less heavy metal entrainment, short process flow, and high metal recovery rate. The extraction rate of the aluminum can reach 97.42 percent.

Abstract: A call processing method includes: determining that a circuit switched fallback (CSFB) call establishing process performed by the terminal is suspended, and a release message of radio resource control (RRC) connection redirected to a circuit domain is received, and determining a current communication state of the CSFB call; and cancelling transmitting an extended service request (ESR) message to be retransmitted currently, in response to determining that the current communication state of the CSFB call meets a condition for canceling a retransmission mechanism of the ESR message.

Abstract: A call processing method includes: determining that a circuit switched fallback (CSFB) call establishing process performed by the terminal is suspended, and a release message of radio resource control (RRC) connection redirected to a circuit domain is received, and determining a current communication state of the CSFB call; and cancelling transmitting an extended service request (ESR) message to be retransmitted currently, in response to determining that the current communication state of the CSFB call meets a condition for canceling a retransmission mechanism of the ESR message.