The result showedthat 1Cr18Ni9Ti in existing use was notsuitable for chlorine methane rectifying colu-mns, and 00Cr25Ni22Mo4.5Cu and TA2were suitable in the conditions thronghsimulative tests of materials selection .

• 1Cr18Ni9Ti不适于作上述用材，00Cr25Ni22Mo4.；5Cu、TA2是该条件下较理想的耐蚀材料。