A kind of enamel reaction kettle material specially used for the production of polyaluminum chloride

Abstract

The invention discloses an enamel-lined reactor material special for polyaluminium chloride production. The material is characterized by being prepared from, by weight, 5-6 parts of corrosion inhibitor, 5-6 parts of modified rubber, 2-4 parts of antistatic agent, 5-10 parts of aluminum nitride, 5-10 parts of boron nitride, 2-4 parts of sodium oxide, 2-4 parts of lithium oxide, 3-5 parts of potassium oxide, 18-40 parts of aluminum oxide, 25-48 parts of silicon dioxide, 10-30 parts of diboron trioxide, 2-4 parts of stannic oxide, 1-3 parts of calcium oxide, 2-5 parts of zirconium dioxide, 2-4 parts of barium oxide, 1-3 parts of titanium dioxide, 2-5 parts of antimonous oxide, 3-5 parts of magnesium oxide and 3-6 parts of zinc oxide. The material has the advantages that high corrosion resistance, mechanical property and electric conductivity are realized under high temperature, high pressure and strong acid, and the service life of a reactor is prolonged greatly. The material is applied to enamel-lined reactors for polyaluminium chloride production.

Description

【Technical field】 The invention relates to the field of chemical industry, in particular to a reaction kettle enamel material specially used for the production of polyaluminum chlorate. 【Background technique】 The enamel kettle is the abbreviation of the enamel reaction kettle, the enamel distillation kettle and the enamel storage kettle, also known as the glass-lined tank or the glass-lined reaction kettle. Burnt and firmly attached to the metal surface to become a composite product. The enamel kettle has the dual advantages of glass stability and metal strength. The enamel equipment has excellent properties such as acid resistance, alkali resistance, impact resistance and temperature change resistance. It is an excellent corrosion-resistant equipment. Has been widely used in chemical, petroleum, pharmaceutical, pesticide, food and other industries. Classification of enamel kettles: electric heating enamel kettles and steam heating enamel kettles. The steam-heated enamel...

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Problems solved by technology

During transportation, hoisting, impact, and sudden temperature changes, it is easy to explode porcelain, and it is difficult to repair. Moreover, under the conditions of high temperature, high pressure and strong acid, the material of the reactor is easy to corrode and wear, and its service life is greatly shortened.

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