sodium amyl xanthate (SAX)85%,90%, Mining chemical, mining flotation reagent CAS NO.7607-99-0

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1.We have been in this field since 2004.  

2.Our products are exported to United States, South American countries, and had a very good feedback.

3.We are manufacture,with the superior quality and competitive price.

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Packing

Major raw materials

Carbon Bi Sulfide (CS2)

qReadily Available in China, USA, Argentina, Europe, and Russia

q Major Use is in the Production of Synthetic Fibers

Amyl Alcohol (C5 Alcohol)

qNorth American, South American Producers use Primary Amyl Alcohol (Mixture of Normal and Iso Amyl Alcohol)

qChinese use 1,2 Dimethyl Propyl Alcohol (Branched C5 Alcohol)

Supply of Chinese Amyl Alcohol close to demand. Increased demand of PAX from China may exceed Current Supply of this Alcohol. Chinese may have to Import Primary Amyl to Meet New Demands at Higher Price than Local Alcohol.

qSouth Africans use Pentylol (Mixture of Predominantly C4 – C6 Alcohols) which is a mixed stream from the coal gasification plant.

Caustic Soda

qMajor bulk commodity available globally. Made in USA and China

SAX (SODIUM AMYL XANTHATE)Safety Recommendations

• Solid xanthates are stable for a long period of time if kept cool and dry.  If exposed to moisture or heat, solid xanthate can decompose to form small amounts of carbon di sulfide which could ignite.  Keep the solid xanthate bags away from water or heat.Xanthate solutions being to decompose immediately when they are put into solution. Keeping the solution cool will reduce decomposition time.  Decomposition of the xanthate solution will occur at 20 degrees C, but it will be very slow.  The main hazardous decomposition product is carbon disulfide.  In PAX solutions, the carbon disulfide float to the top.  To avoid problems with carbon disulfide, there should be adequate ventilation in the xanthate solution storage tank to ensure no
• build up of explosive vapor.  The storage tank and immediate area should be free of ignition sources and grounded to avoid static electricity build up.  The equipment used in and around the storage tank should be explosion proof. Although the PAX is soluble in water, there may be some sludge developed over a long period of time.  If maintenance work is to be conducted on the tank or piping, make sure the area is thoroughly washed to remove any sludge and explosion tests should be taken prior to any hot work. Cone bottom storage and day tanks are recommended so that any sludge can be sent to the flotation circuit. Sludge should not plug pumps or affect flotation performance.Xanthates can be stored and handled in black iron, carbon steel or stainless steel. Piping can be rubber or plastic. Copper and brass are not recommended.

Application

Sodium amyl xanthate/SAX is a powerful collector used for mineral flotation processing in mining industry.This flotation reagent SAX is used in the flotation of mineral beneficiation of nonferrous metallic minerals where a strong but a non-selective collector is desired. Flotation collector- Sodium amyl xanthate is a good collector for the flotation of tarnished sulfide minerals or copper oxide and lead oxide minerals after the sulphidation by flotation activator of either sodium sulphide or sodium hydrosulphide. In the flotation of copper-nickel sulphide and auriferous pyrite etc, sodium isoamyl xanthate is also a preferred excellent mining collector.

Background of xanthate

Xanthate collectors were introduced in 1925, and are still widely used, especially for easy-to-treat ores where selectivity (especially against iron sulfides and penalty elements) is not an issue. They are usually supplied in the powder or pellet forms and are readily soluble in water, and could be made up to any strength for convenience in dosing. Xanthate solutions have relatively poor long-term stability and, therefore, are supplied in liquid form only when the manufacturing plant is in close proximity to the use location.

Xanthates are available in a range of carbon chain lengths, generally from C2 to C5. The collecting power generally increases with increase in chain length, but the selectivity decreases. .The activity of the xanthatesincreases with increasing chain length of the alky group R; the selectivity decreases in accordance with increased chain length. Xanthates are often used in combination with other reagents such as dithiophosphates or thionocarbamates, often added to the scavenger circuit to improve the total recovery. Xanthates undergo hydrolysis in the acid pH range,and are preferred for flotation in alkaline pulp streams. Powder and Pellet form are available with Purity of 85% and 90% Min Xanthates arerelatively unstable at low pH and, therefore, are not suitable for flotation in acid circuits Xanthates are water-soluble chemicals that are used primarily in the mining industry. Xanthates can be obtained by reacting an alcohol with carbon disulphide and an alkali such as sodium hydroxide or potassium hydroxide. The alcohols employed are not unique. They can form ethyl, butyl (isobutyl, normal butyl, secondary butyl), propyl (isopropyl, normal propyl) and amyl (isoamyl, normal amyl, secondary amyl) xanthates, in dry forms, such as powder, granules, pellets, tablets or flakes. Xanthate is the common name for chemical reagents used in the flotation of base and precious metals, which is the standard method for separating valuable minerals, such as gold, copper, lead or zinc minerals, from non-valuable minerals, such as limestone or quartz (gangue). To extract values, conditioned ores are mixed in a solution of water and xanthates and then agitated in flotation cells. Xanthates may be added in liquid or solid form. The xanthates cause the minerals to attach themselves to air bubbles and then float to the top of the flotation cell. As values reach the surface, the bubbles form a froth that overflows into a trough for collection. The residual may be re-used for additional recovery or removed for disposal. Most of the xanthate is consumed in the process. Several flotation processes are required for different ores. Since each ore is unique, there is no standard flotation procedure and no standard grade or type of xanthate used to extract specific values. Each producer has its own grades for xanthate composition, including purity, which is stated as a minimum percentage up to 100 per cent, and moisture. Four types of xanthates (ethyl, butyl, propyl and amyl) are produced in various combinations with sodium and potassium, which are stabilizers in the chemical formula.