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Thiocarbamate collectors provide selective attachment to copper‑bearing and gold‑bearing sulfides while limiting activation of pyrite and other gangue. This selectivity helps produce cleaner concentrates from complex sulfide ores. We offer Isopropyl Ethyl Thionocarbamate (Z‑200) and custom formulations matched to your ore, flowsheet, and water chemistry.
These reagents feature fast kinetics and strong chemisorption on chalcopyrite, bornite, and gold‑associated sulfides. They often reach target recovery at lower dosages than conventional systems, with improved pyrite rejection and cleaner upgrades. Performance is typically robust in neutral‑to‑alkaline circuits and compatible with common frothers and depressants used in gold and copper flotation.
Gold–copper and copper–gold ores where selective recovery is required
Copper–moly circuits needing improved selectivity and cleaner upgrades
Refractory gold with arsenopyrite/pyrite, to limit non‑target sulfide pickup
Polymetallic and complex sulfide ores where xanthates may over‑collect
Use these collectors to sharpen selectivity in challenging mineralogy and variable water chemistry.
Define dosage, staging, and pH through bench testing. Translate to plant trials with controlled frother strength and appropriate depressants to balance mass pull and grade.
Start screening in neutral‑to‑alkaline pH. Incrementally adjust dosage to balance recovery and selectivity. Fine‑tune alkalinity and ionic strength to stabilize kinetics and froth behavior.
Activity is maintained across a range of water hardness and dissolved species. Verify interactions with sulfide depressants, cyanide, sulfite, and other mill reagents during laboratory testwork to define a stable operating window.
Pair with frothers such as MIBC (Methyl Isobutyl Carbinol) or our 2# Flotation Agent to control bubble size and froth stability. Use selective depressants to manage pyrite, zinc, and slimes for cleaner separation.
Our portfolio covers Isopropyl Ethyl Thionocarbamate (Z‑200) and tailored collector blends matched to ore chemistry, particle size distribution, and circuit conditions. Samples are available and match mass‑production quality for reliable scale‑up.
Z‑200 is a selective thionocarbamate collector for copper sulfides and gold‑associated sulfides. It offers fast attachment and stable selectivity over pyrite, supporting improved concentrate grade in complex sulfide ores and, in many cases, reduced total collector dosage.
Gold–copper and copper–gold circuits, including refractory gold with arsenopyrite
Copper ores with high pyrite content
Benefits include cleaner separation, lower non‑target mass pull, and improved precious metal recovery when integrated into a balanced reagent scheme.
Supplied in robust industrial packaging aligned to site requirements, with technical data and handling guidance provided. Packaging formats and labeling can be tailored upon request.
Our R&D team designs collector formulations around your mineral suite and water chemistry. Functional groups, solubility, and kinetics are adjusted to reach target recovery and grade in your flowsheet.
Alkyl structure and active content
Strength versus selectivity balance
Interaction with co‑collectors and modifiers
Make‑up, addition points, and staging strategy
From lab screening to plant trials, we provide dosing strategy, reagent make‑up guidance, and commissioning assistance to de‑risk adoption and accelerate stable performance at full scale.
We operate in‑house facilities under ISO9001 systems, controlling quality from raw materials to final inspection. This supports consistent reagent performance and dependable supply at competitive pricing.
DCS automatic control enables full‑process automation for safety, batch‑to‑batch stability, and predictable collector strength—important for sensitive gold and copper flotation circuits.
Our mineral processing research institute and senior engineers support “one mine, one product” and “one enterprise, one reagent.” We provide on‑site testing, flowsheet alignment, and continuous optimization for your circuits.
Located in Laiyang Chemical Industry Park with complete compliance procedures, we offer flexible MOQ, fast samples matching mass‑production quality, and welcome factory visits.
These collectors perform best when integrated with the right frothers and modifiers. We supply companion reagents and guidance to balance kinetics, selectivity, and froth behavior.
MIBC and our 2# Flotation Agent deliver controllable froth structure and drainage, enhancing selectivity when used alongside the collector system.
Zinc sulfate, sodium sulfite, and sodium silicate help manage pyrite, zinc activation, and slime interference, supporting the selectivity profile. Sodium mercaptoacetate and other circuit‑specific modifiers can be evaluated during lab work.
Combining this chemistry with dithiophosphates (e.g., Sodium Diisobutyl Dithiophosphate, Dithiophosphate 25) or xanthates (Sodium Isobutyl Xanthate, Sodium Isoamyl Xanthate) can tune kinetics and selectivity for variable feeds. Our team designs ratios and addition points based on testwork.
Define target minerals, liberation, and water chemistry. Run comparative tests versus existing collectors to confirm improvements in recovery, concentrate grade, and reagent cost per ton.
Conduct batch flotation with controlled pH, staged collector additions, and consistent frothing. Assess kinetics curves, cleaner upgrades, and pyrite rejection to set operating windows and reagent schemes.
Please provide head assays, particle size distribution, dominant gangue minerals, water analysis, and the current reagent scheme so we can recommend a formulation and dosing plan efficiently.
Scale to plant trials with defined KPIs, adequate safety stock, and side‑by‑side circuits where possible. Monitor stability across ore variability and adjust dosage and staging based on live data.
Thiocarbamate (often referred to as thionocarbamate) collectors are known for selective adsorption on noble metal sulfides and copper sulfides. They offer an alternative where xanthates tend to over‑collect, especially in neutral‑to‑alkaline operations.
Request a sample and a technical proposal tailored to your ore and circuit. Our engineers will recommend a formulation, dosing plan, and companion reagents. Flexible MOQ, fast turnaround, and sample quality equal to mass production support rapid evaluation. Contact us to discuss gold or copper flotation goals, or request a quote to start a plant trial.
