Are enamel reaction kettles and glass-lined reaction kettles the same thing?

No. Both types of reactors are corrosion-resistant reactors. Enameled steel involves pre-sintering a layer of glass inside a metal tank, while enamel involves sintering a layer of ceramic to provide resistance to chemical corrosion. The manufacturing processes and material costs for glass-lined steel and enamel are different, which results in some price differences. Enameled steel reactors cannot be used with alkaline materials, as the glass will be dissolved by alkalis and corroded; whereas enameled reactors can be used with both acids and alkalis.

Difference between porcelain enamel and glass lining: Differences in their properties. Porcelain enamel: A metal surface is coated with multiple layers of ceramic glaze, which are then fired in a furnace at around 800°C; this results in a composite material formed through physical and chemical reactions between the glaze and the metal. Metals for enamel include: copper, aluminum, low-carbon steel, etc. Primarily used for decoration and in jewelry, as well as for surface decoration and corrosion protection of building materials; also used in everyday products such as bathtubs, water heaters, and water tanks ； Therefore, although enamel is classified into artistic enamel, household enamel, sanitary enamel, architectural enamel, cast-iron enamel, etc., it is generally referred to as household enamel. Glass lining: A glassy glaze with special properties, which is formed on a metal substrate by heating it in a furnace at around 820–950°C. A metal matrix refers to carbon steel, stainless steel containers, pipes, and other similar materials with certain strength, used in various petrochemical equipment ； Primarily used as anti-corrosion equipment for chemical processes involving high/low temperatures, pressure, and corrosive environments, for reactions and storage purposes; these are collectively referred to as glass-lined equipment! Before the late 1960s, enamel was known as industrial enamel! Enameled steel: Enameled steel equipment is made by applying a ceramic glaze with a high silicon content to the surface of metal, and then firing it at 950°C to ensure that the glaze adheres tightly to the surface of the metal substrate. Therefore, it has the dual advantages of glass-like chemical stability and metal strength. Enameled equipment is widely used in industrial production and scientific research across sectors such as chemicals, pharmaceuticals, dyes, pesticides, organic synthesis, petroleum, food manufacturing, and the defense industry for processes including reaction, evaporation, concentration, synthesis, extraction, polymerization, saponification, mineralization, chlorination, and nitration, serving as a substitute for expensive stainless steel and non-ferrous metals. Corrosion resistance: It exhibits excellent resistance to corrosion in various concentrations of inorganic acids, organic acids, organic solvents, and weak bases. However, it is not suitable for strong bases, hydrofluoric acid, and fluoride-containing media, as well as phosphoric acid at temperatures above 180°C and concentrations above 30%. Glass-lined equipment mainly includes: reaction tanks, storage tanks, distillation tanks, and condensers. The main standards governing its design and manufacture are GB150-1998 \"Steel Pressure Vessels\", the \"Regulations on Safety Inspection of Pressure Vessels\", and HG2432-2001 \"Technical Requirements for Glass-Lined Equipment\". Enameling is a composite material in which one or several layers of ceramic glaze are applied to a metal surface, and through firing, a physical and chemical reaction occurs between them, resulting in a strong bond. Formerly known as enamel. It possesses the mechanical strength and workability inherent to metals, as well as the corrosion resistance, wear resistance, heat resistance, non-toxicity, and decorative properties of coatings. Enamel originated from glass used to decorate metals. It first appeared in ancient Egypt, followed by Greece. In the 6th century, European inlaid enamel, cut-out enamel, relief enamel, translucent enamel, and painted enamel were successively developed. China began to develop enamel in the 8th century, and by the end of the 14th century this craft had become increasingly refined. Products made during the Jingtai period of the Ming Dynasty in the mid-15th century were particularly renowned, which is why it came to be known as Jingtai blue. In the early 19th century, cast-iron enamel was developed in Europe, laying the foundation for enamel to evolve from a craft item to a household good; however, due to the backward casting techniques of that time, the use of cast-iron enamel was limited. In the mid-19th century, the development of various industries led to the emergence of steel plate enamel, marking a new era for modern enamel. From the late 19th century to the first half of the 20th century, the emergence of various porcelain glazes with different properties, the wider use of steel plates and other metal materials, as well as continuous improvements in refractory materials, kilns, and enameling techniques, all contributed to accelerating the development of the enamel industry. There are many types of enamel, which can be classified by use into artistic enamel, household enamel, sanitary enamel, architectural enamel, industrial enamel, and special-purpose enamel. The production of enamel involves main processes such as glaze preparation, substrate preparation, coating, drying, firing, and inspection. For artistic enamel, household enamel, sanitary enamel, architectural enamel, etc., coloring and assembly are also required for aesthetic decoration and practical use. Industrial enamel equipment must be inspected before being assembled.

It’s one thing to say so, but industrial enamel is simply glass enamel.

The wording is different, but it refers to the same thing. Our previous company produced enamel reaction kettles, also known as glass-lined reaction kettles. You might want to take a look at the technical specifications for glass-lined equipment, GB25025, if you have time

I saw this before as well, but he classified the enamel under daily-use enamel. And the reactors used in factories are not distinguished based on their differences either. And is glass-lined steel a type of enamel?

The same is true in the industry; its formal name is glass-lined steel, while it is commonly known as enamel. Glass-lined reaction vessels are also known as glass-lined reactors; there are also glass-lined storage tanks, heat exchangers, etc.