Zibo Hondo Chemical Co., Ltd. is one of the most experienced manufacturers and suppliers of mining flotation chemicals-cmc in China. Our factory offer high quality products made in China with competitive price. If you have any enquiry about quotation, please feel free to email us.
Products Description
Mining Flotation Chemicals-CMC
Mining grade sodium carboxymethyl cellulose (CMC) for mineral flotation and mineral processing.
Mining Flotation Chemicals-CMC is a sodium carboxymethyl cellulose developed for use in flotation circuits as a depressant, dispersing aid, and slurry-conditioning additive. It can be used to modify the surface behavior of selected minerals and gangue, helping improve separation selectivity and control the effects of fine particles and slimes.
CMC is applied in different flotation systems, including iron ore, copper, nickel, graphite, phosphate, lithium and other complex ores. The appropriate CMC grade depends on the ore mineralogy, flotation process, pulp conditions, and the other reagents used in the circuit.
We supply mining CMC in different viscosity and particle-size grades for laboratory evaluation, process development and bulk mineral-processing applications. Customers can provide their ore type, current flotation reagent and testing requirements, and we can recommend a suitable grade for initial evaluation.
Product Overview
Mining Flotation Chemicals-CMC is a sodium carboxymethyl cellulose developed for mineral processing and flotation applications. Depending on the ore and flotation conditions, CMC can function as a selective depressant, dispersing aid and pulp-conditioning additive.
In flotation systems, CMC can interact with mineral surfaces and fine particles, helping control the behavior of unwanted minerals and slimes. This makes it suitable for applications where gangue depression, fine-particle control or improved separation selectivity is required.
Mining CMC is used in different flotation systems, including iron ore, copper, graphite, phosphate, nickel, lithium and polymetallic ores. However, the required CMC grade is not the same for every ore. Mineralogy, particle size, pulp chemistry, pH, water quality and the existing reagent system can all affect performance.
For this reason, we provide different viscosity and particle-size grades for laboratory evaluation and industrial applications. The appropriate grade can be selected according to the customer's ore type and flotation process, rather than relying on viscosity alone.
For mining companies, mineral processors and flotation reagent distributors, we can provide CMC samples, TDS, COA and SDS for product evaluation and comparative testing.
Applications of Mining Flotation Chemicals-CMC
The application of CMC in mineral flotation depends on the mineral surface, gangue composition and flotation conditions. In practice, it is mainly evaluated where selective depression, fine-particle control or better separation between valuable minerals and gangue is required.
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1. Iron Ore Flotation
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CMC can be evaluated as a depressant in iron ore flotation, particularly in reverse flotation systems where silicate and other gangue minerals need to be controlled. The appropriate CMC grade may help modify the surface behavior of unwanted minerals and support selective separation.
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2. Copper Flotation
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In copper flotation, CMC may be used to control unwanted gangue or fine particles that interfere with the flotation process. Its performance depends on the copper mineral, associated gangue, collector system and pulp chemistry, so laboratory testing is recommended before plant application.
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3.Graphite Flotation
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Graphite processing often requires effective separation of graphite from silicate and other gangue minerals. CMC can be evaluated as a selective depressant or dispersing aid where fine gangue particles affect concentrate quality or flotation selectivity.
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4. Phosphate Flotation
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CMC may be used in phosphate flotation systems to help depress selected gangue minerals and improve the separation between phosphate minerals and unwanted components. Grade selection should take into account the mineralogy and the existing flotation reagent scheme.
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5. Nickel and Polymetallic Ores
- For nickel and complex polymetallic ores, flotation selectivity can be affected by multiple valuable and gangue minerals. CMC can be evaluated as part of a depressant system when selective surface modification or fine-particle control is required.
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6.Lithium and Other Mineral Flotation
- CMC is also being evaluated in selected lithium and other mineral-processing circuits where clay, fine particles or unwanted gangue affect flotation performance. The suitable CMC grade and dosage should be determined through laboratory or pilot testing rather than using a fixed specification for every ore.
CMC can be considered for:
Selective gangue depression
Slime and fine-particle control
Mineral surface modification
Flotation selectivity improvement
Pulp dispersion and conditioning
Complex or polymetallic flotation systems
Because every ore responds differently, we recommend starting with laboratory flotation tests using one or more CMC grades. If you provide your ore type, target mineral, main gangue, current depressant and flotation conditions, we can recommend suitable CMC grades for comparative evaluation.
How to Select the Right Mining CMC Grade
Choosing a CMC for flotation is not simply a matter of selecting the highest or lowest viscosity. The right grade depends on how the CMC needs to behave in the actual flotation circuit.
A CMC grade that works well for one ore may give a different result in another system. For this reason, ore characteristics and flotation conditions should be considered together with CMC specifications.
1. Start with the Ore and Target Mineral
The first consideration is the mineral system itself. Iron ore, copper, graphite, phosphate, nickel and lithium ores have different surface properties and gangue compositions. The target of CMC addition may also differ, from depressing specific gangue minerals to controlling fine particles.
Understanding the target mineral, main gangue minerals and particle-size distribution helps narrow down suitable CMC grades.
2. Consider CMC Viscosity
Viscosity is one of the important indicators of CMC grade, but it should not be used as the only selection criterion.
In general, lower-viscosity CMC grades may be considered where rapid dispersion and fine-particle control are important, while medium or higher-viscosity grades may be evaluated when stronger polymer interaction and surface coverage are required.
The actual response depends on the ore and operating conditions. Comparative flotation testing is therefore the most reliable way to determine the suitable viscosity range.
3. Check Particle Size and Dissolution Behavior
CMC needs to disperse and hydrate properly before it can perform consistently in the flotation system. Particle size, addition method, mixing conditions and water quality can all influence dissolution and hydration.
For laboratory and plant applications, CMC particle size should therefore be considered together with the available mixing and dosing system.
4. Consider the Complete Reagent System
CMC does not work independently from the other flotation reagents. Collectors, frothers, activators, depressants, pH modifiers and dissolved ions may all affect its performance.
When selecting a mining CMC, it is useful to provide information about the current reagent scheme, dosage, pH and water conditions. This allows the CMC grade to be evaluated as part of the complete flotation process.
5. Compare More Than One Grade When Necessary
For a new ore or an unfamiliar flotation circuit, testing two CMC grades can often provide more useful information than testing only one.
For example, a lower-viscosity and a medium-viscosity CMC can be compared under the same laboratory conditions to evaluate differences in selectivity, dispersion and overall flotation response.
The final grade should be selected based on test results rather than viscosity specifications alone.
Key Factors for CMC Grade Selection
| Factor | Why It Matters |
|---|---|
| Ore mineralogy | Determines the interaction between CMC and mineral surfaces |
| Target mineral | Defines the required flotation selectivity |
| Main gangue | Helps determine the desired depression or dispersion effect |
| Particle size | Influences slime behavior and reagent interaction |
| CMC viscosity | Affects polymer behavior and application characteristics |
| CMC particle size | Influences hydration and dosing |
| Pulp pH | Can affect mineral surface chemistry and CMC interaction |
| Water chemistry | Dissolved ions may influence CMC performance |
| Existing reagents | CMC must be evaluated within the complete reagent system |
Need Help Selecting a Mining CMC Grade?
You do not need to determine the grade from the product specification alone.
Send us your ore type, target mineral, main gangue, flotation method, current depressant and laboratory testing conditions. Based on the available information, we can suggest suitable Mining Flotation Chemicals-CMC grades for initial comparative testing.
Specification
The technical specification of Mining Flotation Chemicals-CMC can be adjusted according to the mineral-processing application and selected grade.
| Parameter | Specification |
|---|---|
| Product Name | Mining Flotation Chemicals-CMC |
| Chemical Name | Sodium Carboxymethyl Cellulose (CMC-Na) |
| Appearance | Free-flowing powder or granular material |
| Viscosity | Different viscosity grades available |
| Degree of Substitution (DS) | ≥ 0.75 |
| Purity | ≥ 90% |
| Moisture | ≤ 10% |
| pH (1% solution) | 6.0–8.0 |
| Particle Size | Different particle-size grades available |
| Solubility | Water-soluble under suitable mixing and hydration conditions |
| Packaging | 25 kg bags; customized packaging available |
| Documentation | TDS, COA and SDS available |
The final specification is confirmed according to the selected grade and application. For flotation testing, customers can request a suitable CMC grade based on their ore type, mineralogy and existing reagent system. Batch-specific COA can be provided for quality verification.
Why Choose Our Mining Flotation Chemicals-CMC?
Selecting a mining CMC is not only about finding a product that meets a specification. For a flotation reagent, consistent quality, suitable grade selection and reliable supply are equally important.
Application-Oriented CMC Grades
We supply CMC in different viscosity and particle-size grades for mineral-processing applications. Rather than recommending one grade for every ore, we can discuss the flotation conditions and testing requirements first, then select a suitable product for evaluation.
Consistent Batch Quality
Changes in viscosity, moisture, particle size or other basic properties can affect how a polymer behaves during preparation and dosing. Our production and quality-control procedures are designed to maintain consistency between batches, with each shipment checked against the agreed specification.
Samples for Laboratory Evaluation
Mining CMC is an application-dependent product. Before a bulk order, customers can evaluate samples under their own flotation conditions. Where appropriate, we can provide more than one grade for comparison, helping customers identify the most suitable product through laboratory testing.
Complete Technical Documentation
For product evaluation and procurement approval, we can provide TDS, SDS and batch-specific COA. Technical specifications can also be discussed before sample preparation when a customer has a defined flotation application or existing CMC specification.
Stable Supply for Bulk Orders
Mining operations and reagent distributors need more than a successful laboratory test; they also need a supplier capable of maintaining product consistency when the order moves from kilograms to containers.
With dedicated CMC production facilities and established export experience, we support both laboratory-scale evaluation and regular bulk supply for mining chemical distributors and mineral-processing customers.
Direct Communication with the Manufacturer
As a CMC manufacturer, we can communicate directly on product specifications, grade selection, packaging and production requirements. This helps reduce unnecessary communication between the end user and the supplier, particularly when a mining customer has specific technical requirements or needs to develop a new CMC grade.
Laboratory Testing & Technical Support
A CMC that performs well in one flotation circuit may not produce the same result in another. Ore mineralogy, particle size, pulp chemistry and the existing reagent scheme all influence the response. For this reason, laboratory testing is an important step when introducing a new mining CMC or comparing suppliers.
Start with Your Existing Flotation Conditions
Before recommending a grade, we prefer to understand the application rather than select a product from viscosity alone. Useful information includes:
Ore or mineral type
Target mineral and main gangue
Direct or reverse flotation
Feed particle size
Pulp density
Operating pH
Current collector and frother
Existing depressant, including CMC if currently used
Current dosage and the main processing issue
The more information available, the easier it is to select suitable CMC grades for an initial test.
Compare CMC Grades Under the Same Conditions
For a new application, two or more grades can be evaluated using the same flotation procedure. This allows the effect of viscosity, particle size and dosage to be compared without changing too many variables at the same time.
Depending on the application, testing may focus on:
Concentrate grade
Mineral recovery
Gangue depression
Selectivity
Slime behavior
Reagent consumption
Flotation stability
The purpose of the initial test is not simply to determine whether CMC "works", but to identify which CMC grade provides the most suitable balance for the specific flotation system.
Mining CMC Samples for Evaluation
We can provide CMC samples for laboratory evaluation. Where appropriate, different grades can be supplied for side-by-side comparison before a larger order is considered.
For customers who already have a CMC specification or are replacing an existing product, the available technical information can be reviewed before sample preparation.
From Laboratory Test to Bulk Supply
Once a suitable grade has been identified, the same specification can be used as the basis for further pilot or plant evaluation and subsequent bulk supply.
For mining companies, mineral processors and flotation reagent distributors, our technical team can communicate directly on grade selection, specification, sample preparation, packaging and regular supply.
To request a suitable Mining Flotation Chemicals-CMC sample, please provide your ore type, current flotation conditions and existing depressant information whenever available.
Quality Control / Manufacturing & Quality Assurance
For flotation chemicals, product consistency matters as much as the initial laboratory result. A CMC grade that performs well during testing should remain consistent when the customer moves to regular production.
Our Mining Flotation Chemicals-CMC is manufactured under controlled production and quality procedures. Key properties are checked during production and before shipment to ensure that the supplied material remains within the agreed specification.
01.Key Quality Parameters
Depending on the selected grade, quality control may include:
Viscosity - controls the application characteristics of the CMC solution
Degree of Substitution (DS) - an important indicator of CMC composition and functionality
Purity - helps maintain consistent active CMC content
Moisture - monitored for storage stability and product handling
Particle Size - controlled according to the selected powder or granular grade
pH - checked to maintain consistency between production batches
Appearance - inspected for product uniformity
02.Batch-to-Batch Consistency
Mining customers often test a CMC in the laboratory before moving to regular supply. For this reason, consistency between the tested sample and subsequent production batches is an important part of our quality-control approach.
Production records and test results are maintained for each batch. A batch-specific COA can be provided with shipments so that customers can compare the delivered material with the agreed specification.
03.Controlled Manufacturing
CMC production involves several stages, including raw-material preparation, chemical reaction, washing and purification, drying, milling or particle-size adjustment, blending and final packing. Process conditions are monitored throughout production rather than relying only on final-product inspection.
For mining grades, particular attention is given to viscosity, moisture, particle size and product uniformity, as these properties can affect preparation and dosing in mineral-processing applications.
04.Quality Documents for Procurement
We can provide the technical documents normally required for product evaluation and purchasing, including:
TDS | SDS | COA | Product Specification
For customers with an existing CMC specification, we can also review the required parameters before sample preparation and bulk production.
05.Manufacturing Capacity
Our CMC manufacturing facility has 8 production lines with an annual production capacity of approximately 20,000 MT, supporting both regular industrial orders and application-specific grades.
For long-term mining supply, production specifications can be agreed before the first bulk order and maintained as the reference standard for subsequent shipments.
Packing & Storage
Storage:
1. Store in a cool, dry, clean, ventilated environment. Temperature Max. 70℃, with relative humidity ≤80%.
Storage:
2. The product for pharmaceutical and food grade should not be put together with the toxic substance and harmful substance or substance with peculiar smell during transportation and storage.
Storage:
3. Since the date of production, a preservation period should not exceed 4 years for the industrial product and 2 years for the product for pharmaceutical and food grade.
Storage:
4. The products should be prevented from water and package bag damaging during transportation.
Packing:
Standard packaging options include:
25kg kraft paper bags
PP woven bags with PE liner
Jumbo bags
Customized packaging
Transportation Protection
Products are packed with moisture protection and suitable loading procedures to reduce transportation risks during long-distance shipment.
Export Experience
We have experience supplying international customers in mining and industrial chemical markets.
Technical Documents & CMC Sample Request
Choosing a flotation CMC usually starts with technical evaluation rather than a purchase order. If you are currently sourcing a mining CMC, comparing suppliers or evaluating an alternative to your existing depressant, we can provide the information needed for an initial review.
Technical Documents
The following documents are available for product evaluation and procurement review:
Technical Data Sheet (TDS)
Safety Data Sheet (SDS)
Certificate of Analysis (COA)
Product Specification
A batch-specific COA can be provided for shipped material, allowing the delivered product to be checked against the agreed specification.
Request a Mining CMC Sample
Laboratory testing is recommended before selecting a CMC grade for a new flotation application. We can arrange samples of suitable grades for comparative testing based on the information available about your ore and flotation process.
To help us recommend a suitable product, please provide:
Ore type:
Copper / iron / graphite / phosphate / nickel / lithium / other
Target mineral:
Main gangue minerals:
Flotation method:
Direct / reverse / differential flotation
Current depressant or CMC:
Current dosage, if available:
Main processing concern:
Low recovery / low concentrate grade / excessive slime / poor selectivity / high reagent consumption / other
You do not need to have every parameter available. Even basic information about the ore and current flotation process can help us determine which CMC grades are worth testing.
From Product Inquiry to Technical Evaluation
For a new application, the typical process is:
Application Discussion → Grade Recommendation → Sample Preparation → Laboratory Testing → Grade Confirmation → Trial or Bulk Supply
Our objective is not simply to provide a CMC sample, but to help identify a grade that can be evaluated under your actual mineral-processing conditions.
Request a Mining CMC Sample
Get TDS / COA / SDS
Discuss Your Flotation Application
Frequently Asked Questions (FAQ)
1. What is Mining Flotation Chemicals-CMC?
Mining Flotation Chemicals-CMC is a sodium carboxymethyl cellulose (CMC-Na) designed for mineral processing and flotation applications. Depending on the flotation system, it can be evaluated as a depressant, dispersing aid or pulp-conditioning additive.
2. What is CMC used for in mineral flotation?
CMC is mainly evaluated for selective gangue depression, slime and fine-particle control, mineral surface modification and improving flotation selectivity. Its actual function depends on the ore mineralogy and reagent system.
3. How do I choose the right CMC grade for flotation?
Viscosity should not be the only consideration. Ore mineralogy, target mineral, gangue, particle size, pH, pulp conditions and the existing reagent system should also be considered. Comparative laboratory testing is recommended when selecting a new CMC grade.
4. What CMC viscosity is recommended for mineral flotation?
There is no single viscosity suitable for every flotation application. Different low- and medium-viscosity grades may be evaluated depending on the ore and process. We can recommend suitable grades based on your flotation conditions and testing requirements.
Contact Us
Looking for a reliable mining flotation chemicals-CMC supplier for mineral processing applications?
Contact us for:
Technical specifications
Samples
Bulk quotation
Export cooperation
Flotation application support
Our team is ready to support your mining chemical sourcing and flotation processing requirements.
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