Patent ID: 7578982

Claim:
A radioisotope TI-201 production process, comprising steps of: (a) Electroplating: wherein a TI-203 solid target material is obtained from a plated target material of TI-203 through electroplating; (b) Irradiating: wherein said TI-203 solid target material is irradiated with a proton beam by using a cyclotron; (c) Processing a first chemical separation: wherein said TI-203 solid target material is dissolved with a strong acid liquid to be separated into a TI-201 liquid and a Pb-201 liquid with impurities filtered out; (d) Decaying: wherein said Pb-201 liquid is obtained to be decayed into a TI-201 liquid; and (e) Processing a second chemical separation: wherein a TI-201 liquid having a high purity is obtained through filtering, wherein said step (c) comprises steps of: (c1) Dissolving: wherein, after said irradiating, said TI-203 solid target material is dissolved with a strong acid liquid to obtain a Pb-201 solution and a TI-203 solution; (c2) Processing a precipitation: wherein ammonia (NH 3 ) and water are applied to said Pb-201 solution and said TI-203 solution for a precipitation to obtain a TI-201 liquid and a Pb-201 liquid; and (c3) Processing a first ion exchange: wherein hydrochloric acid (HCl) is applied to said TI-201 liquid and said Pb-201 liquid for an ion exchange by using a resin with impurities filtered out, wherein said strong acid liquid used in step (c1) is a solution of nitric acid having ferric iron (HNO 3 /Fe 3 /H 2 O), wherein step (e) is a second ion exchange; and wherein an HCl having sulfur dioxide (SO 2 ) is applied to said TI-201 liquid to obtain a TI-201 liquid having a high purity through a second ion exchange by using a resin.