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What materials are needed to make glass bottles

2021-12-22 15:34


Glass bottle is a kind of container made of more than ten kinds of main raw materials: quartz powder, limestone, soda ash, dolomite, feldspar, boric acid, barium sulfate, mirabilite, zinc oxide, potassium carbonate and broken glass. It is made through 1600 ℃ high temperature melting and molding. It can produce glass bottles of different shapes according to different molds. Because it is formed at high temperature, it is non-toxic and tasteless. It is the main packaging container for food, medicine and chemical industry. Here are the main raw materials of glass bottles:

(1) Quartz powder: it is a hard, wear-resistant and chemically stable mineral. Its main mineral component is quartz, and its main chemical component is SiO2. The color of quartz sand is milky white, or colorless and translucent, with hardness of 7, brittleness and no cleavage, shell fracture, grease luster, density of 2.65, bulk density (1.5 for 20-200 mesh), and its chemical The thermal and mechanical properties are obviously anisotropic, insoluble in acid, soluble in NaOH and KOH aqueous solutions above 160 ℃, melting point 1650 ℃. After the quartz stone mined from the mine is processed, the product with particle size of 120 mesh sieve is called quartz sand. The product passing 120 mesh sieve is called quartz powder. Main uses: filter material, high-grade glass, glass products, refractories, smelting stones, precision casting, sand blasting, wheel grinding materials, etc.

(2) Limestone: calcium carbonate is the main component of limestone, which is the main raw material for the production of glass. Lime and limestone are widely used as building materials and important raw materials for many industries. Calcium carbonate can be directly processed into stone and fired into quicklime.

(3) Soda ash: it is one of the important chemical raw materials. It is widely used in light industry, daily chemical industry, building materials, chemical industry, food industry, metallurgy, textile, petroleum, national defense, medicine and other fields. It is also used as raw materials, cleaning agents and detergents for manufacturing other chemicals. It is also used in photography and analysis. In the field of building materials, the glass industry is the largest consumer of soda ash, with a consumption per ton of glass Soda ash 0.2 tons.

(4) Dolomite: it can be used as refractory inner layer, slag forming agent, cement raw material, glass flux, kiln industry, fertilizer, stone for construction and decoration, paint, pesticide and medicine of reformer used in steelmaking. It can be used in building materials, ceramics, glass and refractories, chemical industry, agriculture, environmental protection, energy conservation and other fields.

(5) Feldspar: a kind of common aluminosilicate rock forming minerals containing calcium, sodium and potassium. Feldspar accounts for up to 60% in the earth's crust and can appear in igneous, metamorphic and sedimentary rocks. Main uses: manufacturing ceramics and enamel, glass raw materials, abrasive grains, abrasive tools, etc. in addition, it can also manufacture potassium fertilizer.

(6) Boric acid: it is white powdery crystal or triaxial scaly luster crystal, with greasy feel and no odor. Soluble in water, alcohol, glycerin, ethers and essential oils, the aqueous solution is weakly acidic. It is widely used in glass (optical glass, acid resistant glass, heat-resistant glass and glass fiber for insulating materials) industry, which can improve the heat-resistant and transparent properties of glass products, improve the mechanical strength and shorten the melting time.

(7) Mirabilite is mainly composed of sodium sulfate Na2SO4. It is a raw material for introducing Na2O. It is mainly used to eliminate SiO2 scum and act as a clarifier

(8) Barium sulfate: chemical name, also known as barite. It is odorless and tasteless colorless orthorhombic crystal or white amorphous powder. It is stable and difficult to dissolve in water, acid, alkali or organic solvents. In terms of medical treatment, barium sulfate is mainly used as gastrointestinal contrast agent because it can absorb X-rays in the gastrointestinal tract. In industry, it can be used as raw material or filler for paint, ink, plastic, rubber and battery, surface coating agent for printing paper and copper plate paper, sizing agent for textile industry. Glass products are used as clarifiers, which can defoaming and increase luster. It can be used as protective wall material for radiation protection. It is also used in ceramics, enamel, spices, pigments and other industries. It is also a raw material for manufacturing other barium salts.

(9) Zinc oxide: zinc oxide ZnO can increase the chemical stability of sodium calcium silicon glass and reduce its crystallization tendency.