Potassium Ethyl Xanthate (PEX) 90% min

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Potassium Ethyl Xanthate (PEX) 90% minIt is the highest selectivity reagent due to its short carbonate chain. Gener...read on


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Potassium Ethyl Xanthate (PEX) 90% min

It is the highest selectivity reagent due to its short carbonate chain. Generally used in complex Ag/Pb or Zinc ores. Xanthates have been the workhorse of sulfide mineral flotation since the 1920s (Harris 1989), and they represent the largest volume of any sulfide mineral collector. Xanthate collectors are salts consisting of a non-polar hydrocarbon group, which provides the hydrophobicity to a sulfide mineral, pointing outward from the mineral to the solution, and a polar group that adsorbs onto the sulfide mineral surface.


WHAT KEMCORE PROVIDES AS A PARTNER?

Reliable Supply

KEMCORE is always prepared to fulfill orders as they're placed and deliver the product customers need.

Commitment to Safety

KEMCORE has been safely and responsibly distributing Potassium Ethyl Xanthate (PEX) for decades and continues to make advancements through improved packaging options, on-site unloading services, and comprehensive training for our customers.

Dedicated Support

Whether it’s assisting with Potassium Ethyl Xanthate (PEX) handling or regulatory needs like licensing, permitting, and compliance monitoring, support is available.

COUNTRIES OF ORIGIN

  • China
  • Serbia
  • South Africa
  • India

SYNONYMS

PEX, Carbonic acid, Dithiol-, O-pentyl ester, Potassium salt (8CI), Carbonodithioic acid, O-pentyl ester, Potassium salt (9CI), Xanthic acid, Pentyl-, Potassium salt(6CI), Potassium n-amylxanthogenate, Potassium Pentyl Xanthate, Potassium Pentyl Xanthogenate, Xantato Etilico de Potasio.

APPEARANCE

White or slightly yellowish pellet

Molecular Weight:160.3

Density:1.558 g/cm3

Boiling Point:120.5 ºC at 760 mmHg

Melting Point:209-214℃

Flash Point:26.7 ºC

Solubility:1090 g/l in the water at 20ºC

Stability: Stable.

Incompatible with strong acids, strong bases, strong oxidizing agents.

It is the highest selectivity reagent due to its short carbonate chain. Generally used in complex Ag/Pb or Zinc ores.

The application of this collector found its place at the flotation concentration of copper ores in combination with potassium amyl xanthates. At the flotation of oxide minerals of lead and copper, after sulphidation, potassium ethyl xanthate reaches high usage and quality with a bit increased consumption. This collector is recommended to use in the alkali environment (pH>7.0).

PRODUCTION OF XANTHATES:

RAW MATERIALS: are Carbon Disulfide, Caustic Soda (Sodium Hydroxide), or Potash (Potassium Hydroxide) and determined alcohol, which provides it with collecting properties in flotation processes of metallic and polymetallic minerals.

WHAT IS THE QUALITY OF YOUR XANTHATE?

The production of pure xanthates requires pure raw materials and then the reaction must also be driven to completion. This requires sophisticated process design and control of the manufacturing process which, in turn, influences the price and metallurgical efficiency of the product.

DOWNLOAD OUR CASE STUDY TO AVOID BUYING SUB-STANDARD XANTHATE!

XANTHATE APPLICATION:

Xanthates

Relative Strength

Typical Plant Concentration %

Sodium Ethyl Xanthate /SEX

WEAK

10-20

Sodium Isopropyl Xanthate /SIPX

STRONG

10.20

Sodium Isobutyl Xanthate /SIBX

10-20

Potassium Amyl Xanthate /PAX

15-25

All Xanthates are water-soluble and are usually fed in as aqueous solutions in a 5 to 20% strength.

These reagents are widely used for all sulfide minerals, with a high tendency to float iron sulfide, except when using depressors. They cannot be used in highly acidic circuits, as they tend to decompose.

Kemcore carries common Xanthate products equivalent or similar to:

Potassium Ethyl Xanthate (PEX)

Aero 303

Potassium Amyl Xanthate (PAX)

Flottec PAX/Flomin C3505/AERO 350

Sodium Ethyl Xanthate (SEX)

Flottec SEX/FloMin C 3200/AERO 325

Sodium Isobutyl Xanthate (SIBX)

Flottec SIBX/FloMin C3430/AERO 317

Sodium Isopropyl Xanthate (SIPX)

Flottec SIPX/Flomin C3330/AERO 343

Sodium n-butyl Xanthate SNBX

FloMin C 3410

Sodium Amyl Xanthate

Our range of modifiers, collectors, and frothers are produced in fully integrated world-class facilities in China and Kemcore guarantees a continuous supply to our customers worldwide.

Advantages of Xanthate.

  1. The least expensive sulfide mineral collector-Inexpensive compared to Specialty Collectors
  2. Easy to manufacture and available in solid pellet form for easy handling
  3. Dosage: in-plant environment they’re fed at active concentrations of 5% or less in water.
  4. Very good at recovering in an unselective manner bulk sulfide minerals, including sulfides.
  5. Can be used with lime to give a pH operating range of 9-12.
  6. Can be used as a sole collector in a sulfide mineral plant.

Plant Operation Tips:

The sequence of addition of modifiers, collectors, and frothers is of great importance, especially when sulphidising agents and other activators and depressants are involved.

Flotation is a process that relies heavily on surface chemistry, by adding all of the collectors to the conditioner, a thick, scummy and uncontrollable froth is obtained which yields a low and unmarketable grade concentrate with entrained insoluble minerals. Therefore careful consideration should be taken when selecting reagent-dosing points in the plant so that recovery and grade are optimized.

When trialling additional or different collectors maintain a visual inspection history of the froth and concentrate in each circuit.

Data from each shift should be collected over the duration of the trial so that shift recoveries and grades can be determined and to ascertain whether the trial collector is better or worse than the incumbent collector.


Product application

Synonyms:           Glacial acetic acid; Acetic acid solution; acetic acid 50%;  acetic acid, of a concentration of more than 10 per cent, by weight, of acetic acid; Acetic Acid Glacial BP; Natural Acetic Acid; Acetic acid (36%); Acetic acid, food grade; Acetic Acid Glacial; GAA; Acetic Acid, Glacial 

It is a colourless liquid that when undiluted is also called glacial acetic acid. It has a distinctive sour taste and pungent smell.


Acetic acid uses:  
Additive in industrial explosives in Mining.

Other uses include use of acetic acid in the production of vinyl acetate monomer,  acetic anhydride and ester production. 

 

Chemical gassing agents -In the case of emulsion explosives, using Acetic acid can accelerate the gassing process. The chemically gassed emulsions may take 40 – 50 minutes for completion of gassing within the blast holes, particularly when the emulsion is colder.

In cases where acetic acid is used, it is added to the emulsion prior to gassing, the desired amount of acid is mixed in the emulsion, before adding the gasser.

A gassing solution comprising sodium nitrite in water together with the selected enol compound and acetic acid is introduced into the emulsion explosive at the blast hole by entraining the gassing solution into a stream of the emulsion explosive using pumps.

The solution pH is an important parameter in the gassing of emulsion explosives due to the high cost associated with acid addition therefore a pH value should preferably be maintained at 4.1 or below.




Product composition

Identifiers

Abbreviations

AcOH

CAS number

64-19-7

PubChem

176

ChemSpider

171

UNII

Q40Q9N063P

EC number

200-580-7

UN number

2789

Properties

Molecular formula

C2H4O2

Molar mass

60.05 g mol

Appearance

Colourless liquid

Odor

Pungent/Vinegar-like

Density

1.049 g cm

Melting point

16 to 17 °C; 61 to 62 °F; 289 to 290 K

Boiling point

118 to 119 °C; 244 to 246 °F; 391 to 392 K

Solubility inwater

Miscible

Acidity (pKa)

4.76

Basicity (pKb)

9.198 (basicity of acetate ion)

Refractive index(nD)

1.371

Viscosity

1.22 mPa s

Dipole moment

1.74 D

 

 


Product handling

1-    TRANSPORT INFORMATION

  • Transport-UN 2789
  • Hazard Class No. : 8
  • Packing Group: II
  • H.S. Code:  2915211900

 

2-    STORAGE & HANDLING


-        Stable at room temperature in closed containers under normal STORAGE & HANDLING and handling conditions.  Refer to SDS sheet 


3-    PACKING

  

Packing type

Tons/FCL

IBC Drums

18tons/FCL

30kg Drums

21tons/FCL

200Kg drums

16tons/FCL

 

4.Environmental impact

 

-       Acetic acid biodegrades readily under both aerobic and anaerobic conditions.

 -        Acetic acid does not absorb light with wavelengths >290 nm(4), and is not expected to be susceptible to direct photolysis by sunlight(SRC).

-        Incase of spillage neutralize spill with soda ash or lime.


5. Download our Acetic acid msds for more handling information.