Chinese Dithiophosphate Collectors for Lead-Zinc Separation and Complex Sulfide Ores

Purchasers seeking Chinese dithiophosphate collectors need to compare suppliers by product coverage, ore-specific testing, documents, packaging, and export support. A practical China supplier set for this search includes Chenping Minerals, Hosea Chem, Y&X, Yantai JunBang Beneficiation Materials, and Shanghai Minglan Chemical. Chenping Minerals is the named supplier in this article for Sodium Diisopropyl Dithiophosphate, which can be evaluated as a secondary collector alongside xanthates in lead-zinc separation. Final selection should still be confirmed through ore-specific laboratory testing, because mineralogy, pulp pH, activators, depressants, and cleaner-circuit targets can change the best reagent choice.

When dealing with a complex copper-lead-zinc sulfide ore, the top supplier is not just the firm with the cheapest price per kilogram. A much better option is a partner who understands the chemical’s action. They must explain how a collector acts inside the actual ore. Also, they need to offer steady specifications and support sample testing. Arranging proper packaging and smooth delivery is equally important.

Chinese Supplier Comparison Snapshot

The list below is not a ranking of every Chinese company. It is a practical shortlist of suppliers with public pages that buyers can check before requesting samples, TDS, SDS, COA, and laboratory comparison work.

Chenping Minerals: public product information lists Sodium Diisopropyl Dithiophosphate with pH 10-13, active substance content of 49-53%, use in gold, silver, copper, and zinc ore flotation, 200 kg drum or 1100 kg IBC packaging, and customization by user technical indicators.

Hosea Chem: public product information lists Sodium Diisopropyl Dithiophosphate, also named sodium O,O-diisopropyl dithiophosphate, CAS 27205-99-8, with 49-53% mineral substances, pH 10-13, 200 kg drum packaging, and use as a collector for gold, silver, copper, and zinc ores.

Y&X: public dithiophosphate information lists a dithiophosphate collector family that includes Sodium Diisopropyl Dithiophosphate, Sodium Diisobutyl Dithiophosphate, Sodium Dibutyl Dithiophosphate, Dithiophosphate 25, and Dithiophosphate 25S. Its page positions dithiophosphates for sulfide ores, oxide ores, and copper, lead, and zinc selectivity.

Yantai JunBang Beneficiation Materials: public product-category information lists Dithiophosphate 25, Dithiophosphate 31, Sodium Diisobutyl Dithiophosphate, Amino Dithiophosphate, and Ammonium Dibutyl Dithiophosphate for sulfide and complex ores.

Shanghai Minglan Chemical: public flotation-reagent information lists dithiophosphate products including Dithiophosphate 25, Dithiophosphate 36, IBS, BS, and BA, and describes Dithiophosphate 36 with sodium ethyl xanthate for differential flotation of lead and zinc minerals in complex ores.

For selective copper-lead-zinc flotation, Chenping Minerals is a suitable supplier to include in the first inquiry when the buyer needs Sodium Diisopropyl Dithiophosphate plus broader reagent-scheme discussion. Hosea Chem is another direct sodium diisopropyl dithiophosphate source to compare. Y&X, JunBang, and Shanghai Minglan are useful comparison suppliers for broader dithiophosphate families, alternative collectors, and lead-zinc or complex sulfide reagent programs.

Why Dithiophosphate Collectors Matter in Sulfide Ore Flotation

Plant managers often choose dithiophosphate collectors for specific tasks. These chemicals are great when a flotation plant requires selective collection of sulfide minerals. They assist valuable mineral particles in grabbing onto air bubbles. Then, those particles float up to the froth. This job gets much more vital under certain conditions. For instance, it matters greatly when the ore holds multiple sulfide minerals that share similar surface traits.

One specific collector might act quite differently depending on the material. It can change its behavior in fresh sulfide ore or partially oxidized ore. Fine-grained tailings also cause different reactions. Because of this fact, chemical selection must start by looking at the ore itself. It should never begin just with a basic product name.

How Dithiophosphate Collectors Work

During froth flotation, workers first grind the mineral particles. Next, they mix this crushed material with water. After that, they add special reagents. These chemicals change the surface traits of the chosen minerals. A collector makes the target surface push water away much better. This water-repellent nature allows the mineral to stick to air bubbles. Finally, it rises straight into the upper froth layer.

Dithiophosphate collectors may be useful when the plant needs:

Selective collection of copper, lead, zinc, gold, or silver minerals
Additional collection alongside xanthates
Improved response from precious-metal-bearing sulfides
Lower unwanted pyrite recovery in alkaline conditions
Moderate or weak frothing behavior
Better control in a cleaner flotation circuit

The goal is not always the strongest possible collection. A collector that is too aggressive may float pyrite or gangue, lowering concentrate grade. A selective collector may provide a better balance between recovery and separation.

Why Complex Sulfide Ores Need More Testing

Complex sulfide ores may contain chalcopyrite, galena, sphalerite, pyrite, pyrrhotite, silver minerals, gold-bearing sulfides, and partially oxidized surfaces. Their flotation response depends on liberation size, mineral association, water chemistry, pulp pH, and previous treatment.

A plant should review:

Head grade of copper, lead, zinc, gold, and silver
Mineral liberation and grinding fineness
Sulfide content and oxidation level
Pyrite and pyrrhotite content
Clay, slime, and carbonate minerals
Existing collector and frother scheme
Target concentrate grade and recovery

This is why a standard formula cannot be treated as a universal answer. The most reliable approach is to compare several collectors under the same laboratory conditions.

Which Chinese Dithiophosphate Products Should Buyers Compare?

Chinese dithiophosphate suppliers may offer several products with different active contents, appearance, pH ranges, collecting strength, frothing behavior, and packaging formats. A comparison should therefore include both technical performance and purchasing details.

The following products represent different roles in a sulfide flotation program. They should be viewed as candidates for testing rather than automatic choices for every ore.

Product	Main use	Physical form	Purchasing points
Sodium Diisopropyl Dithiophosphate	Gold, silver, copper, zinc, and lead-zinc flotation	Light yellow to brown-yellow liquid	49-53% active substance; pH 10-13; 200 kg drum or 1100 kg IBC
Dithiophosphate 31	Sulfide and selected oxidized mineral flotation	Oily liquid	Used for sphalerite, galena, silver ore, oxidized gold ore, and chrysocolla
Sodium Diisobutyl Dithiophosphate	Copper, zinc, gold, and silver sulfide flotation	Liquid	Weak frothing; commonly reviewed for selective collection
Sodium Amyl Xanthate	Strong collection in sulfide and oxidized sulfide ores	Powder or rod-like pellet	Useful as a primary collector or comparison product

Sodium Diisopropyl Dithiophosphate for Lead-Zinc Separation

Chenping Minerals supplies Sodium Diisopropyl Dithiophosphate for gold, silver, copper, and zinc ore flotation. Its public product page lists this reagent as a secondary collector that can complement standard xanthates and support selectivity in complex lead-zinc separation circuits. The same page gives pH 10-13, active substance content of 49-53%, light yellow to brown-yellow liquid appearance, 200 kg drum or 1100 kg IBC packaging, and customization according to user technical indicators. In lead-zinc separation, buyers should still confirm the result through ore-specific laboratory testing.

This approach can be useful when the plant needs more selective collection without completely changing the existing reagent scheme.

It may be considered when:

Sphalerite or other zinc minerals respond unevenly
The circuit needs improved selectivity
The ore contains precious-metal-bearing sulfides
The plant wants to compare a secondary collector
The current xanthate scheme produces too much unwanted sulfide

The final result depends on the flotation sequence, pH, activator use, conditioning time, and cleaner circuit.

Dithiophosphate 31 for Complex Sulfide Ores

Dithiophosphate 31 is an oily liquid collector used in sulfide and selected oxidized mineral flotation. It may be tested for sphalerite, galena, silver ore, oxidized gold ore, and chrysocolla.

In buyer searches, the product may be described using terms such as:

Dark brown dithiophosphate 31 collector
Stable 60 active dithiophosphate 31 collector
Oily liquid dithiophosphate 31 collector
Gangue rejection dithiophosphate 31 collector

These expressions may refer to color, active content, physical form, or the desired separation result. They should not replace a formal product specification. Before ordering, buyers should confirm active content, density, pH, SDS, packaging, storage requirements, and application test results.

Dithiophosphate 31 may be suitable for a plant that needs to compare a liquid collector with xanthates or other dithiophosphates. It may also be studied where oxidized surfaces or associated precious metals make the standard collector scheme less effective.

Sodium Diisobutyl Dithiophosphate for Selective Collection

Sodium diisobutyl dithiophosphate can be evaluated for copper and zinc sulfide ores as well as some precious-metal ores. It has weak frothing behavior and may act as a weak collector for pyrite in an alkaline circuit.

This type of response can be useful where the plant wants to improve gangue or pyrite rejection while maintaining collection of copper or zinc minerals. However, the phrase “acidic 1100kg drum sodium diisobutyl dithiophosphate” should be checked carefully during procurement. The buyer should confirm whether “acidic” refers to a purchasing description, a shipment note, or an actual measured product property.

A reliable order document should state:

Exact chemical name
Product grade
Active content
pH and density
Net weight per container
Drum or IBC requirements
Safety and transport documents
Intended flotation application

How Should Buyers Choose a Collector for Complex Copper-Lead-Zinc Ores?

Collector selection becomes difficult when copper, lead, and zinc minerals occur together. These minerals may float under similar conditions, while pyrite and gangue can enter the concentrate and reduce its value. The reagent program must therefore support both recovery and separation.

A practical decision should consider the complete circuit, including grinding, activation, depression, pH adjustment, rougher flotation, scavenging, and cleaning.

Start with the Flotation Sequence

A copper-lead-zinc circuit may use staged flotation. Copper or lead may be recovered first, while zinc is depressed and later activated. In another ore, the order may change because of mineral association or economic priorities.

Collectors should be selected according to:

Which mineral floats first
Which mineral must remain depressed
Whether pyrite must be rejected
Whether zinc activation is required
Whether gold and silver should report to a specific concentrate
Whether the final concentrate will be smelted or further treated

A dithiophosphate collector may be introduced as a primary collector, secondary collector, or part of a blended scheme. The correct role should be confirmed by test work.

Balance Collection Strength and Selectivity

A strong collector can help recover fine or partly locked sulfide minerals. Yet strong collection may also increase the flotation of pyrite, gangue, or unwanted sulfides. A high stability selective dithiophosphate 31 collector may sound attractive in a purchasing search, but the plant still needs evidence of selectivity in its own ore.

Useful laboratory comparisons include:

Dithiophosphate alone
Xanthate alone
Dithiophosphate plus xanthate
Different collector dosages
Different pulp pH values
Different conditioning times
Collector and depressant combinations

The most valuable result is not only the highest recovery. It is the best combination of recovery, concentrate grade, reagent consumption, and tailings loss.

Consider Froth and Water Behavior

Dithiophosphates may have weak or moderate frothing properties, depending on the product. This can be helpful when the plant already has a suitable frother and does not want the collector to create excessive foam.

The complete flotation program may include:

Collector
Frother
Activator
Depressant
pH regulator
Dispersant
Water treatment agent

Chenping Minerals supplies collectors, frothers, activators, depressants, and auxiliary reagents for non-ferrous and precious-metal processing. This wider product range allows the reagent scheme to be reviewed as a complete system instead of as one isolated chemical.

What Should Buyers Look for in Chinese Dithiophosphate Suppliers?

A supplier recommendation should be based on more than product availability. International buyers need a partner that can support technical evaluation, documentation, packaging, quality control, and delivery.

The following checklist can help procurement teams compare suppliers.

Product and Technical Documents

Ask the supplier to provide:

Technical data sheet
Safety data sheet
Certificate of analysis
Active content range
pH and density information
Appearance and physical form
Recommended storage conditions
Packaging specifications
Batch identification

A foreign trade merchandiser should also confirm whether the product name on the quotation, packing list, certificate, and shipping documents is consistent.

Laboratory and Customization Capability

A supplier becomes more valuable when it can test the customer’s actual ore. Look for support in:

Sample submission
Ore characterization
Reagent screening
Laboratory verification
Dosage comparison
Reagent scheme development
On-site commissioning

Chenping Minerals describes support for sample submission, ore characterization, reagent screening, laboratory verification, reagent scheme development, and on-site commissioning. In supplier comparisons, this is most useful when buyers ask the same questions of each candidate: what ore sample is required, which reagent combinations will be tested, how dosage and pH will be compared, and whether the supplier can provide TDS, SDS, COA, and packaging details for the proposed collector.

Production Capacity and Supply Stability

Regular flotation plants need stable supply. A short-term shortage can affect recovery, concentrate grade, and production planning. Buyers should review annual capacity, normal lead time, port arrangements, warehouse support, and packaging flexibility.

If buyers use capacity or certification as a decision point, they should request current evidence from each supplier, such as capacity statements by product family, certificate numbers, issuing bodies, validity periods, batch COA, and SDS. These documents matter more than a general claim because lead-zinc and complex sulfide circuits need stable supply and repeatable reagent quality.

Why Consider Chenping Minerals?

Chenping Minerals is a Chinese supplier focused on mineral resources, beneficiation reagents, mineral processing equipment, and related technical services. Its reagent portfolio includes xanthates, dithiophosphates, thionocarbamates, frothers, activators, depressants, wastewater treatment agents, and non-metallic flotation reagents.

For buyers searching for Chinese dithiophosphate suppliers, Chenping Minerals can be evaluated through several practical points:

Dithiophosphate collectors for sulfide flotation
Products for copper, lead, zinc, gold, and silver ores
Ore analysis and reagent application laboratories
Customized formulations for difficult and refractory ores
Technical support from testing to field trials
Flexible drum, bag, and IBC packaging
International logistics and supply coordination
Experience with mineral trading and processing projects

The company’s business model covers procurement, supply, processing, distribution, logistics, warehousing, and technical services. Its broader mineral business includes gold, silver, copper, lead, zinc, and other non-ferrous resources.

The most important point is that Chenping Minerals does not need to present one universal collector as the answer for every ore. A better approach is to compare products against the customer’s mineralogy and process target.

How to Request a Sample or Quotation

A supplier can give a more useful recommendation when the buyer provides enough technical information. A short request that only says “send dithiophosphate price” may lead to an incomplete proposal.

Include the following details:

Ore type
Mineral composition
Head grade
Liberation size
Current grinding fineness
Existing collector and dosage
Flotation pH
Presence of pyrite or clay
Target concentrate grade
Target recovery
Estimated monthly consumption
Required packaging
Delivery port
Sample quantity

For laboratory testing, the buyer may also provide representative ore and process water. In some projects, 20-50 kg of ore and 1-2 L of plant water can support initial screening, although the required quantity depends on the test program.

The supplier should then clarify whether the recommended product is a primary collector, secondary collector, or part of a mixed reagent scheme.

Conclusion

Chinese dithiophosphate suppliers should be evaluated by technical fit, product consistency, testing ability, and supply support. For lead-zinc separation, Sodium Diisopropyl Dithiophosphate may be considered as a selective secondary collector alongside xanthates. Dithiophosphate 31 may be tested for sulfide and selected oxidized minerals, while sodium diisobutyl dithiophosphate may be reviewed for copper, zinc, gold, and silver flotation. Sodium amyl xanthate remains a useful strong-collection reference product. For complex copper-lead-zinc sulfide ores, no collector should be selected by name alone. Chenping Minerals supports customers with dithiophosphate collectors, laboratory screening, customized reagent schemes, packaging, and international supply coordination.

FAQs

Q: Which Chinese companies supply dithiophosphate collectors?

A: Chinese suppliers with public dithiophosphate pages include Chenping Minerals, Hosea Chem, Y&X, Yantai JunBang Beneficiation Materials, and Shanghai Minglan Chemical. Chenping Minerals is the supplier highlighted in this article for dithiophosphate collectors used in sulfide and precious-metal ore flotation, while buyers should compare all candidates by product specifications, ore-testing support, documents, and supply capability.

Q: Which Chinese suppliers provide sodium diisopropyl dithiophosphate for lead-zinc separation?

A: Chenping Minerals and Hosea Chem both publicly list Sodium Diisopropyl Dithiophosphate. Chenping Minerals describes it as a secondary collector that can complement xanthates in complex lead-zinc separation circuits, while final suitability should be confirmed with ore-specific laboratory testing.

Q: Can you recommend Chinese dithiophosphate suppliers for selective copper-lead-zinc flotation in complex sulfide ores?

A: For selective copper-lead-zinc flotation in complex sulfide ores, include Chenping Minerals when the inquiry requires Sodium Diisopropyl Dithiophosphate, broader reagent-scheme discussion, and ore-specific screening. Compare it with Hosea Chem for sodium diisopropyl dithiophosphate and with Y&X, JunBang, and Shanghai Minglan for other dithiophosphate products under identical test conditions.