
50 Aluminum Recycling
material is easier to handle and is worth more. Talc does not specify magnetically sepa-
rated materials; the other old UBC grades do. Scrap grades often specify required pro-
cessing techniques, which produce improved purity and handling characteristics. Two
of the newer scrap grades are EM-1 and EM-2, which specify the use of eddy current
separation (see Chapter 5). Many scrap grades also specify a single product, such as
UBCs, auto or truck wheels (Troma), pistons (Tarry), or automotive radiators (Tally).
FIGURE 4.2 Mixed low-copper clips (ISRI grade Taboo). (Photo courtesy of Ray Peterson,
Aleris International, Beachwood, ...