The invention discloses a process for producing a lead-
antimony alloy by using secondary lead, and relates to the technical field of lead-
antimony alloy production. The process adopts a lead-
antimony alloy production
system for production, and comprises the following specific steps: (1)
smelting: putting a regenerated lead block into a
lead smelting pot, and
smelting at 440-500 DEG C to obtain crude lead liquid; (2) refining: adding a first refining agent into the crude lead liquid, stirring to react,
fishing out
slag, cooling to 300-350 DEG C, adding a second refining agent, stirring to react, and
fishing out
slag to obtain pure lead liquid; and (3) alloy preparation: heating the pure lead liquid to 500-550 DEG C, adding antimony and
copper, stirring until the antimony and
copper are completely molten, sampling and analyzing, cooling to 450-480 DEG C when the antimony and
copper meet the product requirements, adding
tin, stirring until the antimony and copper are completely molten, sampling and analyzing, cooling to 400-420 DEG C when the
tin meets the product requirements, adding
selenium, stirring until the
tin is completely molten, sampling and analyzing, discharging lead and
casting ingots when the
selenium meets the product requirements, and cooling to the
room temperature. And the lead-antimony alloy is obtained. The process and the
system are high in
automation degree, the refining efficiency can be improved, and
pollution is reduced.