| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal adsorbent with a nonwoven fabric form, used for adsorption and recovery of metals in solution, in which the adsorbent has high adsorbent capacity and high chemical resistance, can be provided with a variety of metal-adsorbing properties, can be produced by utilizing existing facilities without using a special facility or complicated operations, and can be readily processed into various forms; and to provide a method for producing the metal adsorbent.SOLUTION: The invention relates to a metal adsorbent with a nonwoven fabric form in which the adsorbent has high adsorbent capacity and high chemical resistance, can be provided with a variety of metal-adsorbing properties, and can be readily processed into various forms. The metal adsorbent with the nonwoven fabric form is produced by passing through: a step for preparing a polymer having glycidyl groups in the molecules thereof; a step for kneading the polymer and a polyolefin fiber matrix polymer having a flow initiation temperature of 200°C or below; a step for forming a nonwoven fabric by a melt blowing process or spunbonding process; and a step for reacting long-chain metalloligands having amino groups or imino groups, with the glycidyl groups on the nonwoven fabric fiber, or with halohydrin groups formed by reacting a hydrogen halide with the glycidyl groups, to introduce metal-adsorbing functional groups. |
