Sapphire Gravity Separation Solutions

Sapphire Gravity Beneficiation Solution

This sapphire beneficiation solution provides a highly efficient process centered on "washing-screening-gravity beneficiation" for the mineral properties of sapphire (corundum, Al₂O₃). Through physical methods to remove clay, sand and other impurities, using the density difference between sapphire and vein minerals to achieve efficient separation and enrichment, to ensure high recovery rate while maximizing the protection of the integrity of gemstone crystals.

I. Process Overview

Sapphire is characterized by high density (3.95-4.03 g/cm³) and crystal integrity, which makes it suitable for the physical separation process mainly based on gravity separation. This sapphire gravity separation solution realizes efficient recovery of sapphire through washing and screening pretreatment, jig roughing and shaking table selection, which has the advantages of simple flow, investment, environmental protection and no pollution, especially suitable for alluvial sapphire deposits.

Second, the process flow introduction

1. Washing and screening system

   • Raw ore enters the rotary scrubber, which effectively removes clay and surface adherents;

   • The washed material is graded by double-deck vibrating screen (+5mm, 5-2mm, 2-0.5mm, -0.5mm);

   • The +5mm screened material can be manually picked to eliminate the large waste rock and improve the subsequent sorting efficiency.

2. Re-election enrichment system

   • 5-0.5mm grain size material enters the jigger, utilizing the density difference to separate sapphire from quartz, feldspar and other light minerals;

   • -0.5mm fine-grained grade can be recovered by spiral concentrator to reduce the loss of micro-fine-grained gemstones;

   • The jig concentrate enters the shaking table for selection to further improve the grade of sapphire.

3. Tailings treatment and water recovery

   • After sorting, the tailings are treated by dewatering screen and then stockpiled or backfilled;

   • Process water is recycled to reduce water consumption and environmental impact.

III. Core Equipment Configuration

Main technical indexes

• Processing capacity: 20-300 t/h (can be customized)

• Recovery rate:

  • Gem-grade sapphire (0.5-30mm): 85-95%

  • Industrial-grade sapphire (-5mm): 90-98%

• Concentrate purity: ≥95% (industrial grade)

• Water Consumption: Recycling Rate＞85%

V. Program Advantages

• ✅ High-efficiency recovery: jigger + shaking table combination, adapting to the whole granularity sorting, high recovery rate;

• ✅ Economic investment: low investment in equipment, low operating costs, energy consumption is only 1/3 of heavy media beneficiation;

• ✅ Environmental protection and safety: no chemicals in the whole process, water recycling, in line with environmental requirements;

• ✅ Crystal protection: physical sorting method maximizes the protection of sapphire crystal integrity;

• ✅ Stable and reliable: the equipment has simple structure, low failure rate, and adapts to all kinds of alluvial conditions.

Sixth, technical services and support

We provide a full range of technical support:

• 🔬 Program design: customize the process and equipment configuration according to the nature of the ore;

• 🛠️ Equipment supply: provide a full set of equipment such as washing, screening, reelecting, etc;

• 👨‍💻 Installation and commissioning: engineers on site to guide the installation and commissioning;

• 📚 Technical training: provide operation and maintenance training;

• 🔧 After-sales service: long-term technical support and spare parts supply.

If you have sapphire beneficiation project requirements, welcome to contact us for customized solutions and quotations. We will provide you with professional, economical and reliable sapphire gravity beneficiation solutions!