| 摘要 |
A container (10) in which minerals such as copper are purified in an electrolytic process includes bottom (12), end (15 and 16) and side walls (13 and 14) for containing corrosive electrolyte, such as, a sulfuric or hydrochloric acid solution. The bottom (12), end (15 and 16) and side walls (13 and 14) of the container (10) are composed of a cured mixture of a modified, vinylester or polyester thermosetting resin and the balance consisting of aggregate. The surfaces of the container are coated with a resin layer (17) having a backing layer (26) consisting of about 35 % - 40 % resin, about 35 % - 45 % flame retardant material, and 20 % - 30 % of a reinforcement which may comprise a fiber glass mat of non-continuous strands 1/2" - 2" long or a light cloth of fiber glass or other synthetic fiber.
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