DY366 new advanced Nickel Cobalt Extractant

DY366 metal extractant has a fast extraction rate and selectivity for nickel and cobalt, and can be used for reverse extraction of nickel and cobalt separately. It is also used for the extraction and enrichment of nickel and cobalt in wastewater containing nickel and cobalt.

Recently, the Chinese government released a set of data on electric vehicles: the total production of electric vehicles has reached 20 million units, which took 15 years to reach 10 million units, and 17 months to reach 20 million units. It can be seen that the electric vehicle industry is developing rapidly.
Lithium ion batteries (LiBs) have attracted great attention due to their excellent performance, including high operating voltage, high energy density, and long lifespan. The demand for lithium battery market will rapidly develop with the geometric state of electric vehicles every year. Therefore, it is necessary to fully develop the recycling technology of waste lithium batteries to address the environmental impact of their waste and the recycling and reuse of key metal resources such as cobalt (Co) and nickel (Ni).
There are fire method and hydrometallurgical method for recycling the cathode of waste lithium batteries. The hydrometallurgical process has attracted great attention due to its mild process conditions and high purity of recovered metals. The most valuable part of LiB is the active cathode material, which is a lithium mixed metal oxide containing cobalt, nickel, and manganese, accounting for 30% of the LiB composition. The general procedure for recycling waste LiB cathodes is chemical leaching, metal separation, and recycling. The metal recovery process typically uses simple, economical, and industrialized solvent extraction techniques. The leaching solution usually contains not only valuable Co and Ni, but also cheaper manganese (Mn), copper (Cu), aluminum (Al), and iron (Fe). By adjusting the pH value of the aqueous solution, impurity metals such as Cu, Al, and Fe can be easily removed as precipitates. However, due to the similar ionic properties of Co and Ni, their separation on Mn has always been a challenging issue. So far, various separation processes using different extractants such as anion exchangers and acidic chelating extractants have been developed and applied to separate Mn, Co, and Ni from waste LiBs. DY272 phosphoric acid extractant is widely used in these separation processes due to its higher extraction ability for cobalt than for nickel. In addition, alkaline or anion exchange extractants have been used for selective recovery of Co, rather than Ni and Mn. By combining multiple extractants and using these traditional solvent extraction processes, high-purity Co and Ni can be efficiently recovered separately. However, due to the co extractability of Mn and Co when Phosphorous acid extractant is used, some pretreatment steps to remove Mn are required before recovering Co and Ni. Similarly, alkaline or anion exchange extractants may require additional salts, such as chlorides or Thiocyanic acid anions, to effectively separate Co from Mn and Ni. At present, the use of multiple extractants and the demand for additional salts mean sacrificing simplicity, cost, and environmental compatibility in order to effectively recover valuable metals from waste LiBs.
The DY366 amino acid extractant achieves efficient and preferential separation of Ni and Co relative to Mn without the need for additional salts or extractants. Compared with commercial thiophosphinic acid extractant or synergistic extraction system with oxime and Carboxylate, the latter can preferentially extract Ni and Co instead of Mn; Replacing high temperature and concentrated hydrochloric acid with dilute sulfuric acid is easy to achieve the stripping of Ni and Co. Amino acid extractants are composed of amino acids containing only C, H, O, and N atoms, making them low-cost and environmentally friendly. Due to the wide variety of amino acids, the extraction performance is expected to be adjustable, enabling precise control of the physical and chemical properties of specific targets. However, due to the structural diversity of amino acids, the screening of expected performance is not easy to achieve.
DY366 amino acid extractant enables Ni and Co to separate from Mn without any additional extractants or reagents, thus achieving a simple, economical, and environmentally friendly separation process for recycling waste LiBs.

Detailed information and explanation of DY366 metal extractant:

1. Appearance: DY366 metal extractant appears as a yellow viscous liquid due to its composition and physical properties. To ensure the quality of DY366 metal extractant, it is necessary to ensure its appearance is clear and free of impurities.
2. Specific gravity (25 ° C): The specific gravity of DY366 metal extractant ranges from 0.90 to 0.92, which means its density is relatively small and easy to operate and process. During use, adjustments can be made as needed.
3. Flash point (closed cup): The flash point of DY366 metal extractant is greater than 70 ℃, which refers to the minimum temperature required for combustion of the substance. The higher the temperature, the safer it is. Therefore, DY366 metal extractant is relatively safe.
4. Nickel saturation capacity (15% V/V): The nickel saturation capacity of DY366 metal extractant refers to the mass of nickel ions that can be dissolved per unit volume of DY366 metal extractant. At a content of 15% V/V, DY366 metal extractant can dissolve nickel ions ranging from 5.2 to 5.5g/l.
5. Extraction phase separation time: The extraction phase separation time of DY366 metal extractant refers to the time when two different phases are formed under specified conditions after mixing with a metal solution. The extraction phase separation time of DY366 metal extractant should be within 150 seconds, which is beneficial for improving extraction efficiency and operational performance.
6. Reverse extraction phase separation time: The reverse extraction phase separation time of DY366 metal extractant refers to the time when the solution of metal extracted by DY366 metal extractant is mixed with a reducing agent, and the metal is extracted from DY366 metal extractant under specified conditions. The reverse extraction phase separation time of DY366 metal extractant needs to be within 100 seconds to ensure its reverse extraction efficiency and speed.
7. Packaging and storage: The standard packaging for DY366 metal extractant is 190Kg/barrel or IBC ton barrel. To ensure the quality of the product, sealed storage is required, and the storage environment should be dry and cool to avoid mixing with alkaline substances.

DY366 metal extractant is an excellent extractant with the following advantages:

1. Faster extraction rate: DY366 metal extractant has a faster extraction rate for nickel and cobalt, which can complete the extraction process in a short time and improve production efficiency.
2. Good selectivity: DY366 metal extractant can extract nickel and cobalt separately, and the extraction selectivity is good, without the occurrence of cross extraction or simultaneous extraction.
3. High nickel saturation capacity: DY366 metal extractant has a high nickel saturation capacity, which can improve extraction efficiency and product quality.
4. Good stability: DY366 metal extractant has good stability, strong acid and alkaline resistance, and can adapt to complex extraction environments.

Based on the above advantages, DY366 metal extractant has great application prospects in the following fields:

1. Nickel and cobalt smelting industry: DY366 metal extractant can be used for the extraction and enrichment of nickel and cobalt in wastewater containing nickel and cobalt, as well as for the extraction of nickel and cobalt in nickel and cobalt ores.
2. Chemical industry: DY366 metal extractant can be used for tasks such as organic synthesis and catalyst separation and purification.
3. Environmental protection industry: DY366 metal extractant can treat wastewater containing nickel and cobalt, reducing environmental pollution.
4. Material science field: DY366 metal extractant can be applied to the fine purification of alloy materials, and has good application prospects.
5. Low cost: Due to the relatively low production cost of DY366 metal extractant, it can improve production efficiency and product quality without increasing too much cost.
6. Easy to operate: Compared with traditional chemical extractants, using DY366 metal extractant can reduce operating steps, reduce labor costs, and improve work efficiency.
7. Environmental sustainability: The application of DY366 metal extractant does not generate pollutants such as waste liquids, exhaust gases, or solid waste, making it more environmentally sustainable.

In summary, DY366 metal extractant has broad application prospects in extraction, separation, purification, and other fields, and has good application prospects in nickel cobalt smelting, chemical industry, environmental protection, materials science, and other fields.

Overall, DY366 metal extractant is a metal extractant with excellent performance, easy operation, low cost, and environmental sustainability, with broad application prospects. With the development of modern technology and changes in market demand, the application field of DY366 metal extractant will be further expanded and deepened, making greater contributions to industrial production and environmental protection.