Rubber Protects Corrosion Effects

Rubber is chemically resistant to most corrosive liquids, gases, salt water, ozone and UV light. These corrosive agents are commonly 

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The materials handled in the bins were 20% solids by weight, flow of 2.9 tons of water per hour and 47 gallons/minute of pulp. The size of the material was 100 to plus 325 BSS mesh. Maximum acid concentration was 20% hydrochloric acid. The temperature in the system was 60°C. A 6 mm thick natural rubber lining of shore hardness 50°A was used to protect the equipment against the abrasive environment as well as the corrosion effects of hydrochloric acid. 

Silicone elastomers do not dissolve in oils, petrol and other hydrocarbons that is why they can be successfully used in printing and as protective coatings for glass, enameled, ceramic, steel and aluminum articles. The success of silicone rubber is also due to its complete absence of corrosive effect. 

Eight platinum anodes are suspended in the anode space, having on one side or both sides a foil of smooth platinum 5 (0.05 min thick, 8 mm wide and 350 mm long). Each foil is welded to platinum wires which arc soldered on the copper rods 4 through wliioh the current is conducted to the anode. Against the corrosion effect of the anolyte the copper rods are protected with a coating of rubber. The cathodes made of perforated lead sheets 6 and lead coil 7 to cool the catholyte are placed in the cathode space. Usually the lead coil is welded to the cathodes. 

Substances, which after very limited exposure cause death or major irreversible effects, even if prompt medical treatment is undertaken. Also included in this category are substances that easily go through protective rubber clothing and those that, under normal conditions or in a fire, release extremely dangerous vapour, whether they are toxic or corrosive by inhalation or skin contact. 

The main challenges presented by the chemical engineers as well as the several national and worldwide seminars and discussion forums conducted by associations of chemical engineers on the corrosion protection of their plant and equipment with rubber as a material of construction, and its longevity, contributed effectively to the expansion of the use of rubber within the rubber and the rubber-using industries. 

The resulting corrosion processes not only lead to leakage but also may induce failure of system components owing to clogging with corrosion products (e.g. scales and precipitates). Corrosion inhibitors for water treatment should be effective at variable water composition, temperature, and flow conditions for a wide range of inhibitor concentrations. They should protect all exposed metals and should not be aggressive to other materials in the system (e.g. solder, rubber, and plastics). Furthermore, they should not stimulate the buildup of scales, thermally isolating... 

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