Application of sodium trithiocarbonate_industrial additives

Application overview of sodium trithiocarbonate

Sodium trithiocarbonate is a strong base and weak acid salt. Its molecular formula is Na₂CS₃. It is a rose-red needle-shaped solid. According to the periodic law of elements, its properties are similar to those of sodium carbonate. Generally, they exist in solution form.

Applications of sodium trithiocarbonate

Application examples of sodium trithiocarbonate are as follows:

1) Prepare a fly ash chelating agent. Fly ash chelating agent includes the following ingredients: by weight, 10% to 20% trisodium trimercaptotriazine, 3% to 8% sodium trithiocarbonate, 2% to 6% 2,6-diamide pyridine ethyl sulfide Alcohol, 0.5% ~ 1.5% 1,3-dibenzamide ethanethiol, 0.2% ~ 0.8% additives, 60% ~ 80% water. Preparation method of fly ash chelating agent: add trisodium trimercaptotriazine, sodium trithiocarbonate, 2,6-diamide pyridine ethane mercaptan, and 1,3-dibenzamide ethyl mercaptan into water and stir to obtain a mixture liquid; then add additives and stir. The preparation method of the present invention is very simple. It is an organic sulfur compound chelating agent, which has the advantages of large molecular weight, strong flocculation function, and strong ability to chelate heavy metals; the additive of the chelating agent is soluble starch, which improves the chelating ability of the chelating agent. , reduce the toxicity of polymer heavy metal chelating agents, making the modified products easy to biodegrade.

2) Prepare a high-impact polypropylene material modified with aminoacetic acid. The high-impact polypropylene material includes the following components by weight: 90 to 135 parts of polypropylene, 10 to 15 parts of aminoacetic acid, 10 to 14 parts of sodium trithiocarbonate, 5 to 8 parts of potassium oleate, benzene 6 to 15 parts of diethyl phosphonate, 4 to 9 parts of ethylhexyl hydroxystearate, and 3 to 8 parts of calcium borate. The high-impact polypropylene material modified with aminoacetic acid of bromopyridine of the present invention has high impact resistance, toughness and rigidity of tetrahydrofuran titanium chloride, and can be better used in electric power, chemical industry, medical treatment and other technologies. in the field; the preparation process is simple and is conducive to promotion.

3) Prepare a silicon carbide recovery agent from silicon wafer cutting waste, which is made from the following raw materials by weight: thionitrile ester 2-4, salicylic acid 1-2, sodium trithiocarbonate 2-3 , Phthalates 3-4, Carboxymethyl cellulose 2-3, Sodium alkyl succinate sulfonate 1-2, Methanol 35-40, Diesel 40-45, Additives 4-5, Water 30-35. The agent of the present invention can efficiently separate silicon and silicon carbide, has a simple process, low cost, and a high enrichment rate and recovery rate of silicon and silicon carbide, and can be used to remove silicon and silicon carbide from a large amount of crystalline silicon wire saw mortar produced in the photovoltaic industry. recycling, with significant economic benefits.

4) Prepare a copper sulfide ore beneficiation and flotation agent, which is made of the following raw materials by weight: epoxidized soybean oil 10-12, N-hydroxyoxycarbonylthiourea 15-20, butyraldehyde 18- 23. Xanthate 6-8, glycerol 12-14, sodium citrate 3-4, baking soda 3-5, sodium trithiocarbonate 3-5, polyoxyethylene castor oil 2-3, activator 4- 5; The flotation agent of the present invention has stable pH value, stable foam, good flocculation effect, good reagent collection performance for copper, high copper yield, good reagent selectivity, good inhibition of other minerals, and high copper grade. ; The activator of the present invention contains components such as nano-jade powder, has stable dispersion, good permeability, good activation, long-lasting activation effect, and can improve the yield and grade of copper; and the flotation agent causes little environmental pollution.