YX091 Selective Collector Flotation Reagent for Superior Silver Recovery and

YX091 is an advanced selective collector specifically developed for the flotation separation of complex polymetallic sulfide ores containing silver, lead, zinc, copper, and gold. Formulated to address the processing challenges faced by Mexico’s major mining districts in Sonora, Chihuahua, and Zacatecas, YX091 delivers exceptional selectivity in Ag-Pb-Zn-Cu-Au multi-metal circuits where conventional xanthate-based collectors often produce overlapping recovery profiles and reduced concentrate grades. The proprietary formulation combines dithiophosphate and modified thionocarbamate functional groups to achieve targeted mineral surface adsorption, enabling sharp separation between galena, sphalerite, and chalcopyrite within a single flotation circuit.

The selective performance of YX091 derives from its engineered molecular structure, which preferentially adsorbs onto lead and silver-bearing sulfide surfaces while exhibiting reduced affinity toward zinc and iron sulfides. This differential adsorption characteristic allows operators to achieve high-grade lead-silver concentrates with minimal zinc contamination at natural or mildly alkaline pH conditions (8.0-11.5), reducing or eliminating the need for extensive depressant dosages of sodium cyanide or zinc sulfate. In Mexican operations processing Fresnillo-type Ag-Pb-Zn ores, YX091 has demonstrated silver recovery improvements of 3-8% compared to conventional SIPX+dithiophosphate combinations, while simultaneously reducing zinc misplacement to the lead concentrate by 15-25%.

• Superior Silver Recovery: The modified thionocarbamate functional groups in YX091 exhibit strong chemisorption affinity for silver-bearing sulfide surfaces including argentite (Ag²S), pyrargyrite (Ag³SbS³), and silver-containing galena. Independent metallurgical testing at Mexican silver operations has verified silver recovery increases of 3-8% compared to standard xanthate-based collector regimes.
• High Selectivity in Pb-Zn-Cu Circuits: The dithiophosphate component provides clean galena flotation with minimal sphalerite activation, reducing zinc content in lead concentrates by 15-25% and improving overall Pb-Zn separation efficiency by 10-20 index points on the selectivity curve compared to single-component collectors.
• Broad pH Tolerance: Effective flotation performance is maintained across the pH range of 8.0 to 11.5, compatible with both lime-based and soda ash-based pH regulation systems commonly employed in Mexican concentrators. This broad tolerance eliminates the need for tight pH control infrastructure upgrades.
• Low Frothing Tendency: Unlike many dithiophosphate collectors that generate excessive and persistent froth, YX091 exhibits moderate frothing characteristics that complement standard MIBC or pine oil frother additions, providing stable and manageable froth phase control throughout the rougher and cleaner stages.
• Compatible with Existing Circuits: YX091 can be directly substituted into existing flotation circuits without equipment modifications. The liquid formulation allows straightforward metering via standard peristaltic or diaphragm dosing pumps, and is compatible with all common flotation cell types including mechanical, column, and Jameson cells.
• Stable Storage and Handling: The liquid formulation remains chemically stable for 12 months in sealed containers at ambient temperatures of 5-35°C. No crystallization, phase separation, or performance degradation has been observed under normal storage conditions, ensuring consistent metallurgical results throughout the product shelf life.

YX091 is specifically engineered for polymetallic sulfide flotation circuits processing complex Ag-Pb-Zn-Cu-Au ores typical of Mexican epithermal and skarn-type deposits. Primary applications include Fresnillo-style intermediate sulfidation epithermal deposits where silver occurs in intimate association with galena, sphalerite, and pyrite. The collector demonstrates strong performance in selective lead-silver flotation ahead of zinc flotation in sequential separation circuits, as well as in bulk sulfide flotation followed by selective cleaning stages. Additional applications include copper-gold porphyry operations with elevated pyrite content where copper selectivity against iron sulfides is critical, and gold-bearing massive sulfide deposits requiring precious metal recovery optimization in the primary flotation stage. YX091 is compatible with standard sulfide mineral depressants including sodium cyanide, zinc sulfate, sodium metabisulfite, and sodium sulfide for circuit flexibility.

YX091 is supplied in UN-certified 200L steel drums (net weight 200kg per drum) or 1000L IBC intermediate bulk containers (net weight 1000kg) with tamper-evident seals and full GHS-compliant labeling. Each production batch undergoes comprehensive quality control analysis at our ISO 9001 certified laboratory, including active content titration, density measurement, pH verification, and standardized micro-flotation performance testing against certified reference ores. Batch certificates of analysis are provided with each shipment. Storage recommendations include protection from direct sunlight, extreme temperatures, and moisture ingress. Our metallurgical support team is available for on-site reagent optimization, dosage rate determination, and flotation circuit troubleshooting at client operations throughout Mexico and Latin America. Twelve-month shelf life guaranteed when stored in original sealed packaging at 5-35°C.