Abstract: A container in which minerals such as copper are purified in an electrolytic process includes bottom, end and side walls for containing a corrosive electrolyte, such as, a sulphuric or hydrochloric acid solution. The bottom, end and side walls of the container are composed of a cured mixture of 10-19 percent of a modified, vinylester or polyester thermo-setting resin and the balance consisting of aggregate. The surfaces of the container are coated with a resin layer having a backing layer consisting of about 70%-80% resin and 20%-30% 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.

Abstract: A container formed of polymer concrete in which minerals such as copper are purified in an electrolytic process. The container includes a bottom and end and side walls for containing a corrosive electrolyte, such as, a sulphuric or hydrochloric acid solution. An overflow box is integrally formed in a first formation extending vertically along one end wall of the cell and an overflow pipe is molded into the first formation and extends from the overflow box outwardly of the cell. A vertical covered inlet chanel or cast-in pipe is provided at the opposite end of the container and extends from its upper to its lower end.

Abstract: A container in which minerals such as copper are purified in an electrolytic process includes bottom, end and side walls for containing a corrosive electrolyte, such as, a sulphuric or hydrochloric acid solution. The bottom, end and side walls of the container are composed of a cured mixture of 10-19 percent of a modified, vinylester or polyester thermo-setting resin and the balance consisting of 1/4"-1/64" inch crystalline silica, fine silica sand or silica flour and glass beads approximately four microns in size and/or mica flakes about 1/64" in size or 1/4"-1/8" chopped fiberglass strands. The container is formed in a continuous pouring process and includes non-conductive reinforcing rods.

Abstract: A container in which minerals such as copper are purified in an electrolytic process includes bottom, end and side walls for containing a corrosive electrolyte, such as, a sulphuric or hydrochloric acid solution. The bottom, end and side walls of the container are composed of a cured mixture of 10-19 percent of a modified, vinylester or polyester thermosetting resin and the balance consisting of 1/4"-1/64" inch crystalline silica, fine silica sand or silica flour and glass beads approximately four microns in size and/or mica flakes about 1/64" in size. The container is formed in a continuous pouring process and includes non-conductive reinforcing rods.