Order Code	Product Name
L-10-03-M01	Quantitative Ashless Filter Paper for Mining Laboratory Mineral Analysis

Quantitative Ashless Filter Paper for Mining Laboratory Mineral Analysis

Brief Introduction

Quantitative Ashless Filter Paper is a high-purity laboratory filtration consumable designed for precision quantitative analysis, gravimetric testing and mineral sample preparation. Manufactured from refined cellulose fibers, it features an ultra-low ash content of less than 0.007%, helping minimize residue interference during analytical weighing and laboratory testing.

With uniform porosity, stable particle retention, excellent wet strength and reliable filtration performance, this ashless filter paper is available in fast, medium and slow filtration grades with multiple diameter options. It supports consistent filtration workflows in mining laboratories, metallurgical testing facilities and environmental analysis applications.

Application Scope

This quantitative ashless filter paper is widely used in mining laboratory workflows including mineral sample preparation, metallurgical quantitative analysis and mine environmental testing. It is suitable for filtering ore digestion solutions, mineral leachates and suspended solids during geochemical pretreatment procedures.

In hydrometallurgical testing, the filter paper supports solution clarification before instrumental analysis by removing fine particles while maintaining sample purity. It is also applicable for soil analysis, water quality monitoring and heavy metal collection during environmental assessment related to mining operations.

Features

Ultra-Low Ash Content Supports Analytical Accuracy

With ash content below 0.007%, the filter paper leaves minimal residue after combustion and helps reduce background interference in gravimetric analysis and quantitative mineral testing. Uniform pore structure provides stable particle retention and supports repeatable filtration results.

Strong Wet Performance Ensures Reliable Filtration Operation

Manufactured from high-purity cellulose fibers, the filter paper maintains structural integrity during wet filtration processes. Its stable mechanical performance helps reduce tearing and fiber shedding during repeated laboratory filtration tasks.

Multiple Filtration Grades Improve Laboratory Workflow

Available in fast, medium, medium fast and slow filtration grades, the filter paper adapts to different mineral solution characteristics and particle separation requirements. Flexible grade selection supports efficient pretreatment workflows from coarse suspension filtration to fine particle clarification.

Standard Sizes Support Easy Laboratory Compatibility

Available in common laboratory diameters from 90mm to 150mm, the filter paper is compatible with conventional filtration equipment and vacuum filtration systems used in mining laboratories. Its standardized design allows convenient integration into routine analytical procedures.

Consistent Quality Reduces Long-Term Operating Cost

Manufactured with standardized production processes and quality control procedures, each batch provides stable filtration performance and purity. Reliable consistency helps reduce repeated testing caused by filtration variation and supports cost-effective laboratory operation.

Specification

Product Name	Quantitative Ashless Filter Paper
Core Material	High-purity cellulose fiber
Ash Content	<0.007% (negligible for analytical weighing)
Filtration Grade & Pore Size	Fast: 20~25μm; Medium: 8μm; Medium Fast: 16μm; Slow: 2~4μm
Available Standard Sizes	90mm, 110mm, 125mm, 150mm
Key Properties	Ultra-high purity, uniform porosity, excellent wet strength, chemical resistance and stable fine particle retention
Applicable Scenarios	Mining mineral sample preparation, metallurgical quantitative analysis, mine environmental water and soil monitoring, industrial quality control and scientific research experiments
Product Models	SPQTA0900MF: Medium Fast, 16μm, 90mm SPQTA0900S: Slow, 2~4μm, 90mm SPQTA1100F: Fast, 20~25μm, 110mm SPQTA1100M: Medium, 8μm, 110mm SPQTA1100MF: Medium Fast, 16μm, 110mm SPQTA1100S: Slow, 2~4μm, 110mm SPQTA1250F: Fast, 20~25μm, 125mm SPQTA1250M: Medium, 8μm, 125mm SPQTA1500M: Medium, 8μm, 150mm SPQTA1500MF: Medium Fast, 16μm, 150mm SPQTA1500S: Slow, 2~4μm, 150mm

Why Choose FKN PANDA

FKN PANDA supplies high-purity quantitative ashless filter papers designed for global mining laboratories, metallurgical testing facilities and environmental analysis applications. With ultra-low ash content, uniform filtration performance and stable mechanical properties, these filter papers support reliable quantitative analysis and mineral sample preparation workflows.

Offering multiple filtration grades and standard size options, FKN PANDA ashless filter papers adapt to diverse laboratory requirements including mineral testing, solution clarification and environmental monitoring. Consistent batch quality and dependable filtration performance help improve workflow efficiency for mining technical teams, laboratory operators and distribution partners.

Slow/Medium Speed Quantitative Ashless Filter Paper – FAQ

Q1. How to select slow versus medium speed ashless quantitative filter paper for different ore precipitate types in mineral analysis?

The selection between slow and medium speed ashless quantitative filter paper depends on the particle size, precipitate characteristics, and required filtration control in mineral analysis workflows. Slow-speed grades are generally considered for fine precipitates requiring higher retention capability, while medium-speed grades are suitable when faster filtration is required for larger or more easily retained particles. In mining laboratories, the correct filter paper selection helps maintain consistency during gravimetric analysis, ore assay preparation, and metallurgical evaluation by balancing filtration efficiency with sample recovery requirements.

Q2. What factors should be considered when choosing quantitative filter paper for hydrometallurgical leaching residue filtration?

When selecting quantitative ashless filter paper for hydrometallurgical applications, laboratories should consider residue particle size, chemical compatibility, filtration speed, and downstream analytical requirements. Leaching residues from processes such as copper, nickel, lithium, or precious metal evaluation may contain fine solids requiring controlled filtration before analysis. The selected filter paper should support reliable separation of liquid and solid phases while maintaining sample integrity for subsequent gravimetric determination or instrumental analysis within the mineral testing workflow.

Q3. How does filter paper pore size affect particle retention efficiency for copper concentrate acid digestion precipitates?

Filter paper pore structure directly influences the retention of fine particles generated during acid digestion and precipitation procedures. A finer retention grade can help capture smaller precipitates, reducing potential sample loss during copper concentrate analysis, while a more open structure may provide faster filtration for larger particles. Mining laboratories should match filter paper retention characteristics with the specific precipitate properties and analytical method to achieve consistent separation performance during mineral characterization and metallurgical testing.

Q4. What are the differences between slow and medium speed ashless filter papers for mineral processing gravimetric analysis?

The main difference between slow and medium speed ashless quantitative filter papers is the balance between filtration rate and particle retention capability. Slow-speed papers are typically selected for fine precipitates where controlled filtration and complete collection are important. Medium-speed papers are often used when laboratories require improved workflow efficiency while maintaining suitable retention performance. In mineral processing laboratories, the choice should be based on the analytical procedure, precipitate size distribution, and required repeatability of gravimetric measurement.

Q5. Can ashless quantitative filter papers handle concentrated acid matrices during metallurgical testing?

Ashless quantitative filter papers are commonly used in analytical procedures involving mineral digestion and precipitation processes, but compatibility depends on the specific acid system, concentration, temperature, and exposure time. Laboratory technicians should evaluate filter paper suitability according to the chemical conditions involved in procedures such as ore digestion, leaching residue separation, or elemental analysis preparation. Proper selection helps minimize risks of filtration failure and supports reliable sample preparation before further metallurgical evaluation.

Q6. How to ensure testing repeatability across multiple ashless filter paper batches in ore assay gravimetric analysis?

Testing repeatability requires consistent filter paper specifications, proper storage conditions, and controlled laboratory procedures. Mining laboratories should maintain consistent selection of filter paper grade, diameter, filtration method, and handling practices across different batches. During gravimetric analysis, variations in filtration behavior or sample handling can influence final measurement results. Using standardized operating procedures helps laboratories maintain reliable data quality throughout routine mineral testing, quality control programs, and metallurgical process evaluation activities.

Q7. Which filter paper diameter compatibility is required for standard laboratory funnels in mineral testing workflows?

The appropriate filter paper diameter should match the laboratory funnel size and filtration setup used in mineral testing operations. Correct sizing ensures proper seating, reduces the risk of bypass flow, and supports efficient separation of solids and liquids during sample preparation. For mining laboratories, compatibility between filter paper dimensions and existing filtration equipment is an important consideration when establishing new laboratory workflows, expanding testing capacity, or replacing consumable supplies.

Q8. How to select filter paper speed based on expected particle size for ore leachate precipitate filtration?

Filter paper speed selection should be based on the expected particle size distribution and the purpose of the filtration step. Fine mineral precipitates produced during leaching, precipitation, or gravimetric analysis often require slower filtration grades to improve retention and sample recovery. Larger particles or higher-volume workflows may benefit from medium-speed options to improve processing efficiency. Laboratory engineers should evaluate filtration requirements as part of the overall mineral testing workflow rather than selecting paper speed only by filtration time.

Q9. What maintenance and storage practices support consistent performance of ashless filter papers in mining laboratories?

Proper storage and handling are important for maintaining consistent filter paper performance during long-term laboratory operation. Ashless quantitative filter papers should be protected from excessive moisture, contamination, and improper handling that may affect filtration behavior. Mining laboratories should establish controlled storage procedures and inventory management practices to ensure reliable consumable quality. These measures support stable performance in routine ore analysis, gravimetric testing, and continuous mineral evaluation programs.

Q10. How do quantitative ashless filter papers support the mining laboratory workflow from sample preparation to process decision?

Quantitative ashless filter papers play an important role in separating and collecting solid phases during mineral analysis procedures. Within the mining laboratory workflow, they support stages from sample preparation and chemical separation to mineral testing and metallurgical evaluation. Reliable filtration helps preserve sample integrity before weighing, ignition, or further instrumental analysis. By selecting suitable filter paper grades and applying consistent laboratory procedures, laboratories can improve process control and generate dependable analytical information for mineral processing decisions.

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