Various uses and mechanism of sodium humate
Sodium humate (HA-Na) is jet black amorphous particles. It is non-toxic, odorless, non-corrosive, and easy to water. It is chemically refined from high-quality, low-calcium and low-magnesium weathered coal containing natural humic acid. It is a multifunctional polymer compound containing many active groups such as hydroxyl, quinone and carboxyl groups, and has a large internal surface area. , It has strong adsorption, exchange, complexation and chelating ability.
Sodium humate has a large specific surface area, so it can absorb a large amount of solid and gas substances, and it has shown good application prospects in agriculture and industrial production.
In agriculture, sodium humate can be used as a compound fertilizer to change the soil structure and have the effect of preventing disease and disease resistance, increasing yield and increasing income for crops. As a feed additive in poultry and livestock breeding, and as a synergist in aquaculture, significant economic benefits have been achieved.
In the industry, sodium humate is used as ceramic additives, debonding agents, drilling mud regulators, industrial water stabilizers, cement water reducers, boiler scale removers, ore flotation agents, waste gas and wastewater treatment agents, and coal water slurry additives , Coal briquette binder, battery cathode plate expander, etc., show strong vitality, have achieved significant economic effects, and have a very broad prospect.
With the deepening of modern research, new uses of sodium humate are constantly being discovered.
Since sodium humate contains active groups such as hydroxyl and carboxyl groups in the molecule, these groups have more negative charges, which can provide electrons to the outer orbital of metal ions, or make Fe304, SiO2 and CaCO3 covered on the metal surface and humus Sodium is complexed, and a stable and dense chemical adsorption protective neutral insulating layer is formed on the metal surface, thereby separating the metal surface from the corrosive medium, slowing down the chemical corrosion of the metal surface, and showing good scale inhibition, scale dissolution and slowing down. Sodium humate water treatment agent has become a new direction for the development of green water treatment agent.
Because the humic acid drilling fluid additive product has the functions of reducing fluid loss, viscosity reduction, and anti-collapse, and has good salt resistance and high temperature resistance, it has been widely used in oil fields.
The addition of sodium humate in the production of ammonium phosphate can reduce ammonia escape, thereby reducing the production cost of slurry diammonium phosphate. Sodium humate, as a surfactant for high-efficiency and low-cost ultrafiltration technology, can reduce production costs, and has attracted the attention of foreign researchers in recent years. The results of the research on the remediation of petroleum-contaminated soils believe that sodium humate has a strong effect of solubilizing substances, and the desorption of diesel fuel increases linearly with the concentration of sodium humate. The application of sodium humate in oil-contaminated soils Reduce the amount of surfactants, thereby reducing environmental pollution. As the main raw material of water-retaining agent, sodium humate in weathered lignite can reduce the cost of water-retaining agent by about 10%.