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Sodium Formate is a versatile salt used both in food and in food biotechnological applications. In food, it serves as a preservative. In food biotechnology, it is employed in processes such as cheese production, particularly in the cultivation of starter cultures. Its primary function is as a buffering agent, helping to maintain stable pH conditions—crucial for the growth and metabolic activity of these cultures. Certain microbial strains may also utilize it as a supplementary carbon and energy source. Furthermore, it can contribute to redox balancing in controlled fermentation systems, supporting consistent product quality and process efficiency.
Lohtragon® B67, based on Sodium Formate (CAS No. 141-53-7), is a vital component in electroplating processes. As a buffering agent, it stabilizes the bath's pH, ensuring consistent plating quality. Its role as a mild reducing agent aids in the deposition of metal ions, particularly in non-cyanide silver and gold plating baths. Additionally, Sodium Formate functions as a complexing agent, controlling free metal ion concentrations for uniform metal deposition. This contributes to brighter, smoother coatings that enhance both the aesthetic and adhesion quality of plated surfaces.
Sodium Formate also acts as an adhesion modifier, improving the bond between metal coatings and substrates. By stabilizing pH levels, it ensures uniform metal layer deposition for stronger adhesion and a more durable, resilient finish.
Lohtragon® B67 is also an environmentally friendly de-icing agent, effectively melting ice and snow with minimal environmental impact. Unlike traditional salt-based de-icers, Sodium Formate is less corrosive and leaves typically no salt deposits, keeping surfaces cleaner and safer while reducing harm to infrastructure and the environment.
Sodium formate, also known as formic acid sodium salt, is the simplest organic carboxylate, which is white crystal or powder with a slight smell of formic acid. There are two crystal waters in the crystal, so it is also called sodium formate dihydrate. It is slightly deliquescent and hygroscopic.
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Using coke as raw material, the carbon monoxide gas required by the process is obtained through the processes of gas generation and dust removal, water washing, decarbonization, and dust removal. After heating and pressurizing, it reacts with sodium hydroxide to form a sodium formate solution, and then evaporates, separates, and dries to form a solid product, sodium formate.
Lift the coke to the upper part of the gas-making furnace with an electric hoist, and add coke to the furnace from the mouth of the gas-making furnace. Incomplete combustion of coke in the furnace and the air brought in by the fan produce mixed gases such as carbon monoxide, carbonate dioxide, and nitrogen.
The mixed gas from the gas generator enters the cyclone dust collector, and most of the small solid particles entrained by the mixed gas enter the scrubber. The scrubber uses water as the washing liquid to further remove the solid particles in the mixed gas, and then enters the alkali washing tower, using sodium hydroxide solution as the circulating absorption liquid. Part of the carbon dioxide gas in the mixed gas is removed, and then the moisture entrained in the gas is separated by a hydrocyclone. Then enter the electrostatic precipitator, remove the remaining small solid particles through static electricity, and purify the mixed gas again.
The purified mixed gas enters the compressor for two-stage compression, and the pressure is raised to 2.0-2.2Mpa. In enter the mixer through the oil-water separator and mixes with the lye from the preheater. Under a certain temperature and pressure, the lye reacts with most of the carbon dioxide gas, and obtains the carbon monoxide gas required for the process.
In the production of sodium formate, the commonly used desulfurization method is zinc oxide method. Zinc oxide is a contact reaction type desulfurizer with large inner surface and high sulfur capacity, which can be used as a single desulfurizer.
Heat the generated monoxide gas and nitrogen to 140℃-150℃ to enter the synthesis reactor. In the synthesis reactor, carbon monoxide reacts with sodium hydroxide to form sodium formate solution. The mixture of sodium formate solution, nitrogen and trace carbon monoxide gas is decompressed and then enters the hydrocyclone for gas-liquid separation. The sodium formate solution is pumped into the storage tank for use, and the mixed gas is discharged into the atmosphere.
The sodium formate solution in the storage tank is pumped to the evaporator, and most of the water is evaporated to form sodium formate solution with a content of 70%-80%. Then it is pumped to the centrifuge, and the centrifuge to get solid sodium formate.
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