Cradle to Gate
Identity ID
cda69566-36c1-4b3e-b2d7-f154b9a4bf9b
Materials
Associated ID
26681861-5799-4789-8712-10808e9ed554
Included activities starts
Included activities ends
Description
Sodium silicate is widely used in fields such as building materials, light industry, paper, textiles, metal surface treatment and chemical products; Sodium silicate is modelled as a pure substance; when modelling this substance the user needs to add a solvent of their choice in the model; the dataset contains the main raw and auxiliary materials, energy and atmospheric emissions of the production process, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include charging, ingredient stirring, melting and cooling.
Activity Description
The production activities of this product include feeding, batching, mixing, melting, cooling and other processes.
Process Description
The chemical formula of sodium silicate is usually expressed as Na2O·nSiO2 (n is the modulus, S350 n=3.41-3.70), CAS number 1344-09-8. Industrial products are mostly colorless, light yellow or blue-gray viscous liquids, and also have lumpy and granular solid forms without special odor. Easily soluble in water, the solution is strongly alkaline, with good adhesion, corrosion resistance and high temperature resistance; the chemical properties are relatively stable, but it will decompose to form silicic acid precipitation when exposed to strong acid, and react with metal salt solutions to form insoluble silicates. It is widely used in the construction industry (as a binder to prepare mortar and concrete waterproofing agent) and light industry (as an additive in the manufacture of soaps and detergents to improve decontamination capabilities); it is also used in the papermaking industry as a sizing agent and filler, and in the textile industry as a slurry to enhance fabric strength; it can also be used for metal surface rust removal and anti-corrosion treatment, as well as for the preparation of chemical products such as silica gel and molecular sieves, and is also used as a molding sand binder in precision casting.
Time period
2024
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Using the dry method (melting method), it can cover the production of full-modulus sodium silicate, mainly with high modulus; it is produced through the high-temperature melting reaction of quartz sand and soda ash, and can accurately control the modulus index, accounting for more than 85% of the ultra-high modulus sodium silicate market segment. Specifically: put sodium carbonate and quartz sand into a mixer, stir evenly and then send it to the kiln for melting at 1350~1400°C. It can react to produce sodium silicate with high purity and stable modulus. Finally, the finished product is obtained by cooling. The chemical reaction equation involved: nSiO2 + Na2CO3 → Na2O·nSiO2 + CO2↑, n represents the module. The module of the product in this data set is calculated in 3.6 modules.