✅ Z-7 (Sodium Dibutyl / Isoamyl Dithiocarbamate) 

Z-7 is a high-strength, highly selective dithiocarbamate flotation collector used extensively in copper, gold, silver, and activated zinc sulfide ores.
Recognized for its very strong chemisorption, exceptional selectivity, and ability to maximize precious-metal recovery in complex and refractory ore bodies, Z-7 is considered one of the most powerful dithiocarbamate collectors available in the market.

Compared with Z200 and ZDTC, Z-7 provides significantly stronger collecting power.
Compared with Z-5 and Z-6, Z-7 offers stronger adsorption on precious-metal sulfides and better recovery of fine, ultra-fine, or refractory particles.
It is particularly suitable for cleaner flotation stages and high-grade concentrate production in gold–copper systems.

Engineered for high-performance flotation, Z-7 provides:
• Very strong adsorption on chalcopyrite, chalcocite, bornite, and gold-bearing sulfides
• Outstanding selectivity over pyrite, pyrrhotite, and arsenopyrite
• Superior recovery of fine-grained and refractory gold, silver, and copper sulfides
• Excellent performance in copper–gold and copper–zinc flotation circuits
• Cleaner concentrate grade with substantially reduced sulfur and penalty elements
• Stable performance across a wide pH range and difficult pulp chemistry
• Synergistic enhancement when paired with xanthates, dithiophosphates, and DTP collectors
• Lower dosage requirement due to high active content and strong adsorption energy

Z-7 is especially effective in:
• copper–gold (Cu–Au) flotation plants
• gold and gold–silver ores with high pyrite content
• complex and polymetallic sulfide deposits
• semi-oxidized or refractory copper–gold ores
• activated sphalerite (CuSO₄-treated zinc ores)
• cleaner flotation requiring high-grade, low-sulfur concentrates
• flotation of fine or ultra-fine sulfide particles

Z&Z supplies Z-7 (Sodium Dibutyl / Isoamyl Dithiocarbamate) with consistent purity, strong active content, and export-grade packaging for global mining companies and flotation reagent distributors.

Packaging:
• 25 kg bags
• 50 kg fiber drums
• Liquid formulations available in IBC containers

Documentation:
COA, MSDS, Technical Data Sheet available upon request

Z-7 is widely used in Cu–Au, Au–Ag, Cu–Zn, and complex sulfide flotation circuits across Latin America, Africa, Asia, and Eastern Europe.