2-mercaptobenzothiazole composite material, preparation method and application thereof, and method for separating palladium ions in palladium-containing acidic solution
A technology of mercaptobenzothiazole and composite materials, which is applied in chemical instruments and methods, radioactive purification, and other chemical processes, and can solve problems such as lack of palladium separation means
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[0028] The present invention also provides the preparation method of the 2-mercaptobenzothiazole composite material according to the technical solution, comprising the following steps:
[0029] After mixing the 2-mercaptobenzothiazole, the organic solvent and the porous carrier, vacuum impregnation treatment and solvent removal treatment are sequentially performed to obtain a 2-mercaptobenzothiazole composite material.
[0030] Unless otherwise specified, the present invention has no special requirements on the source of the raw materials used for the preparation, and commercially available products well known to those skilled in the art can be used.
[0031] In the present invention, the 2-mercaptobenzothiazole, organic solvent and porous carrier are mixed.
[0032] Before mixing, the present invention preferably further comprises washing the porous support. In the present invention, the cleaning process includes the following steps: after mixing the carrier and the cleaning...
Embodiment 1
[0057] Add 20g XAD7HP resin spheres to 160mL methanol, then filter and remove methanol at 30°C at a frequency of 300rpm for 2h, repeat this 3 times, and vacuum dry at 40°C and 300hPa for 30h to obtain cleaned XAD7HP resin spheres;
[0058] Dissolve 1.25g of 2-mercaptobenzothiazole in 90mL of ethanol to obtain a mixed solution, then add 3.75g of cleaned XAD7HP resin balls to the mixed solution, mix and stir evenly, and then transfer to a rotary evaporator. Under the oil bath, reduce the pressure by 50hPa every 15min until the pressure is as low as 300hPa. While vacuuming, the organic solvent will be distilled off at the same time due to the pressure reduction. Then, under the vacuum condition of 300hPa, dry it at 60 °C for 24h to obtain 2-mercapto. A 2-mercaptobenzothiazole composite material with a benzothiazole content of 25 wt.%.
Embodiment 2
[0060] Add 20g XAD7HP resin spheres to 180mL methanol, then filter and remove methanol at 40°C at a frequency of 300rpm for 2h, repeat this for 3 times, and vacuum dry at 60°C and 100hPa for 30h to obtain cleaned XAD7HP resin spheres;
[0061] Dissolve 2g of 2-mercaptobenzothiazole in 80mL of ethanol to obtain a mixed solution, then add 4g of cleaned XAD7HP resin balls to the mixed solution, mix and stir evenly, and then transfer to a rotary evaporator. The pressure is reduced by 20hPa every 10min until 200hPa, and the organic solvent will be distilled off due to the pressure reduction at the same time while vacuuming, and then dried at 50°C for 30h under the vacuum condition of 200hPa to obtain the content of 2-mercaptobenzothiazole It is 33.3 wt.% 2-mercaptobenzothiazole composite material.
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