Sodium Isopropyl Xanthate (SIPX) , chemical formula C6H5S2C(O)ONa, CAS 140-93-2. It is an organic compound composed of phenyl, sulfur, and oxygen atoms. Its molecular formula contains a sodium ion (Na+), making it positively charged. Usually a white or white like crystalline powder. It has good solubility in water and can quickly dissolve to form a colorless and transparent solution. It can also be soluble in some organic solvents such as ethanol and ethers. Relatively stable under dry conditions, but prone to moisture absorption and becoming sticky in humid environments. It will decompose under high temperature, exposure to sunlight, and the action of oxidants. It is alkaline and has a high pH value. Its solution is typically in the alkaline pH range (approximately 8-10). When isopropyl xanthate is burned, it produces toxic sulfur oxide gas, so it should be stored in a ventilated, low temperature, dry place, and separated from food raw materials. Sodium isopropyl xanthate, also known as sodium isopropyl xanthate, is mainly used for flotation and collection of various non-ferrous metal sulfide ores.
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Chemical Formula |
C4H7ONaS2 |
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Exact Mass |
158 |
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Molecular Weight |
158 |
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m/z |
158 (100.0%), 137 (4.5%), 137 (4.5%), 136 (4.3%) |
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Elemental Analysis |
C, 35.53; H, 5.22; O, 11.83; S, 47.42; Na, 100.00 |
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Dangerous goods sign xn, n, Hazard category code 22-38-51 / 53-31, Safety instructions, Dangerous goods transport No.: 3342, HazardClass 4.2, PackingGroup II, Toxicity ldlo parent in the mouse: 600 mg/kg
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This is our advanced product Sodium Isopropyl Xanthate (SIPX).
It is an organic sulfide reagent widely used in mining. It can form complexes with metal ions and play an important role in the flotation process of ores.
The synthesis process of SIPX can be represented by the following chemical equation:
1. Generate sodium isopropanol salt:
C3H7OH + Na2CO3 → C3H7ONa + CO2 ↑+H2O
2. Generate SIPX:
C3H7ONa + CS2(CH3) 2 → C3H7OCSSNa + CH3SH
Among them, C3H7OH represents isopropanol, Na2CO3 represents sodium carbonate, CO2 represents carbon dioxide, H2O represents water, C3H7ONa represents isopropanol sodium salt, CS2 (CH3) 2 represents carbon disulfide dimethyl ester, C3H7OCSSNa represents SIPX, and CH3SH represents mercaptan.
The synthesis method of SIPX mainly includes the following steps:
1. Preparation of raw materials. Firstly, it is necessary to prepare the necessary raw materials and reagents, including isopropanol, sodium carbonate, dimethyl carbonate, carbon disulfide, etc. Isopropanol is the solvent for the reaction, sodium carbonate is the precursor for SIPX synthesis, and dimethyl carbonate and carbon disulfide are key reagents used to generate SIPX.
2. Preparation of reaction solution. Add a certain amount of isopropanol to a reaction vessel and heat it to a suitable temperature. Normally, the reaction temperature is between 40-60 degrees Celsius.
3. Sodium carbonate addition. Slowly add sodium carbonate solution to isopropanol while stirring and mixing to produce isopropanol sodium salt. This step is a prerequisite for the synthesis of SIPX, and the generation of isopropanol sodium salt is a necessary condition for subsequent reactions.
4. Catalyst addition. Continue heating and stirring the reaction mixture, while adding an appropriate amount of catalyst to promote the reaction. Common catalysts include ferric chloride, ferric acetate, etc.
5. Dropwise addition of carbon disulfide dimethyl ester. In another container, mix dimethyl carbonate with carbon disulfide to form a solution of carbon disulfide dimethyl ester (CS2 (CH3) 2). Then slowly add carbon disulfide dimethyl ester dropwise to the reaction mixture in step 4, while maintaining temperature and stirring. The drop acceleration rate is generally 3-5 drops per second. In this step, carbon disulfide dimethyl ester reacts with isopropanol sodium salt to generate SIPX.
6. Precipitation generation. After a period of reaction, the precipitate produced is SIPX. The form of precipitation is generally a white crystalline substance.
7. Sedimentation collection. Filter the reaction mixture and collect the precipitate.
8. Washing and purification. Wash and purify the collected precipitate with appropriate solvents (such as ethanol). The purpose of washing is to remove impurities, and the purpose of purification is to obtain high-purity SIPX.
9. Drying. Finally, dry the obtained SIPX to obtain the final product.
Sodium Isopropyl Xanthate (SIPX) is an organic sulfide reagent widely used in mining. Due to its high hydrophilicity and gold affinity, it is widely used in the flotation process of metal minerals. SIPX forms a complex with metal ions and adsorbs on the ore surface, thus promoting the combination of ore and air foam and realizing the separation and extraction of ore.
1. Copper ore flotation:
Copper is one of the most commonly used minerals in SIPX because it has strong adsorption capacity and can form stable complexes with SIPX. In copper ore flotation, SIPX is added to the flotation agent to combine with copper ions, so as to combine the air foam with the ore surface and promote the separation and extraction of ores. In addition, SIPX can also increase flotation efficiency and recovery rate, improving production efficiency.
2. Lead zinc ore flotation:
In addition to copper ore, SIPX is also widely used in the flotation process of lead zinc ore. Lead zinc ore is another important metal mineral, and SIPX can form stable complexes with it, helping to improve flotation efficiency and recovery. In the flotation of lead-zinc ore, it is usually necessary to add various reagents, including SIPX, xanthate solution, sodium cyanide, etc., to achieve better flotation results.
3. Nickel ore flotation:
Nickel ore is also one of the commonly used metal minerals in SIPX. SIPX can form a stable complex with nickel ion and adsorb on the ore surface to promote the combination of air foam and ore. The use of SIPX can improve the recovery rate and quality of nickel ore, while reducing production costs and environmental pollution.
4. Cobalt ore flotation:
SIPX is also applied in cobalt ore flotation. Cobalt is an important industrial metal with extensive applications in batteries, alloys, catalysts, and other fields. SIPX can form complexes with cobalt ions and adsorb on the surface of cobalt ore, promoting its separation and extraction. The use of SIPX can improve the recovery rate and quality of cobalt ore, reduce production costs and environmental pollution.
5. Iron ore flotation:
SIPX can be used as a flotation aid in iron ore flotation. It can increase the contact area between air foam and ore surface, promote the combination of ore and air foam, thus improving the recovery rate and quality of iron ore. In iron ore flotation, it is usually necessary to add various reagents, including SIPX, xanthate solution, deoxidizer, etc., to achieve better flotation results.
6. Gold flotation:
SIPX can be used as a flotation aid in gold ore flotation. It can increase the contact area between the air foam and the gold mine surface, thus promoting the combination of gold mine and air foam. In gold flotation, it is usually necessary to add various reagents, including Sodium Isopropyl Xanthate (SIPX), xanthate solution, sodium cyanide, etc., to achieve higher flotation efficiency and recovery rate.
The significance of pre use preparation work for ore dressing reagents is to achieve separate dissociation of useful minerals and gangue minerals. It consists of crushing, screening, and grading of crushed ore. Due to the degree of separate dissociation of useful minerals and gangue minerals directly affecting the screening indicators, the construction cost and energy consumption of crushing and crushing equipment in the beneficiation plant account for more than half of the factory. Therefore, how to improve crushing efficiency is of key significance for improving beneficiation indicators, saving energy consumption, and operating costs. Among the many measures applied, the use of chemical anti-corrosion agents to assist grinding can achieve the significance of improving crushing efficiency. Everyone refers to this type of chemical anti-corrosion agent as a grinding aid.
The screening work can be composed of different beneficiation methods. The key industrial equipment for mineral processing methods include flotation reagents, re selection, magnetic separators, and electric separators. Among them, flotation reagents were applied earlier and more importantly. As its name implies, flotation reagent is the whole process of extracting and converging useful minerals and gangue minerals by using the difference of mineral hydrophobicity to extract plastic foam products from pulp. Due to the scarcity of naturally hydrophobic minerals in nature, the hydrophobicity differences of different minerals are completely regulated by different drugs. The various drugs used throughout the flotation process to alter the physical properties of mineral surfaces are collectively referred to as flotation agents. It includes a variety of drugs including foam capturing agents and conditioning agents. The application of such ore dressing agents is currently not entirely limited to the screening method of flotation agents. For example, magnetic separators were originally used to select minerals based on their properties, but for fine stone minerals, thickening agents were added in advance to improve the screening effect, ensuring sufficient looseness of ore particles and improving the selectivity of magnetic separators.
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