Tailing Tungsten

What Are Tungsten Tailings?

Tailing tungsten are residual materials generated after extracting tungsten from ore slurry. Composed primarily of gangue minerals and surrounding rock, they contain fluorite, quartz, garnet, feldspar, mica, and calcite, along with trace amounts of valuable metals such as molybdenum, niobium, tin, copper, lead, zinc, and even precious metals like gold and silver.

Proper utilization of tungsten tailings not only enhances tungsten product quality but also maximizes mineral resource efficiency, reducing environmental waste.

 

 

 

How to Effectively Use Tungsten Tailings?

Memulihkan logam yang berguna dalam tailing tungsten seperti timah, molibdenum, niobium, tembaga, timbal, seng, antimon, bismut, kobalt, emas, perak, dll. Ini tidak hanya dapat meningkatkan kualitas produk tungsten, tetapi juga memanfaatkan sumber daya mineral secara efektif.
The valuable metals currently recovered are mainly tungsten, molybdenum, and rhenium.

You may be interested in the properti bijih tungsten dan metode pemrosesan

 

Recovering Valuable Metals from Tungsten Tailings

Tungsten

Pemulungan tailing tungsten adalah cara yang efektif untuk meningkatkan tingkat perolehan bijih tungsten.

The recovery of tungsten from tungsten tailings and fine tungsten mud is achieved by a combined metallurgical process, and the recovery rate of WO3 is up to 82.6%.

The flotation method for tungsten ore is extended to tungsten tailings and fine mud, and 18% tungsten crude concentrate of WO3 grade is obtained. The crude concentrate is directly alkali-decomposed, and the leaching efficiency is remarkably improved.

The micro-bubble technology was used to recover fine-grained scheelite from scheelite flotation tailings, and the recovery rate in the range of 5~38μm was 65%.

Pemisahan magnetik dengan gradien tinggi digunakan untuk mendapatkan kembali wolframit dari tailing flotasi scheelite. Setelah satu kali seleksi kasar, satu kali pemulungan, dan pemisahan magnetik yang kuat, ditemukan bahwa konsentrat magnetik kuat wolframit berkadar 0,43% f WO3 yang diperoleh dari tailing 0,20% WO3, dengan tingkat perolehan kembali tungsten sebesar 73,26%.

Molybdenum, Bismuth Recovery

Banyak endapan tungsten dikaitkan dengan berbagai tingkat molibdenum dan bismut, meskipun beberapa molibdenum dan bismut dapat diperoleh kembali selama operasi pemisahan gravitasi, namun karena sifat alamiah molibdenum dan bismut yang dapat mengapung, maka sering kali molibdenum dan bismut tersebut terbawa ke dalam tailing, yang mengakibatkan tingkat perolehan kembali molibdenum dan bismut menjadi rendah.

Tailing gravitasi tungsten - flotasi molibdenum dan bismut secara langsung
Tailing lumpur halus - konsentrasi terlebih dahulu, kemudian flotasi

Non-metallic Minerals Recovery

The non-metallic minerals in tungsten metal are mainly quartz, feldspar, mica, garnet, fluorite, and calcite; among them, fluorite and garnet have recovery value.

1. Fluorite

Fluorite is an important non-metallic mineral widely used in chemical, metallurgical, and building materials industries. The grade of fluorite ore in China is generally low, and the associated deposits account for 43%. The recovery of fluorite minerals in tungsten tailings is of great significance.

2. Garnet

Garnet is a weak magnetic mineral with high hardness and chemical stability. It is mainly used in abrasives, building materials, and polymer fillers. The garnet ore grade is not high, and the industrial-grade requirement is more than 14%. It is the basis of deep processing of garnet by magnetic separation and gravity to increase the garnet grade.

 

Tungsten Tailings For Building Materials

Komponen utama tailing tungsten adalah oksida silikon dan aluminium, yang mirip dengan bahan bangunan tradisional. Selain itu, tailing tungsten lebih halus dan tidak perlu dihancurkan, sehingga memiliki keunggulan dalam hal konsumsi energi yang rendah dan biaya yang rendah.

1. Tungsten Tailings for The Cement Industry

The use of tungsten tailings as a raw material for the production of cement can reduce the amount of fluorite. When the mass fraction of WO3 in raw meal is 1×10~6×10, it can improve the burnability of raw materials and is beneficial to the formation of cement clinker mineral Elite. The escape rate of tungsten is almost zero, and it can reduce the escape of lead, mercury, and fluorine, and can be used as an environmentally friendly cement clinker mineralizer.

Penggunaan tailing tungsten sebagai bahan baku klinker semen mengurangi polusi sulfur fluor.

Namun, tailing tungsten digunakan sebagai bahan baku untuk produksi semen untuk mengontrol jumlah penambahan, dan jumlah yang berlebihan dapat menyebabkan efek samping.

2. Tungsten Tailings for Glass-ceramics

Keramik-kaca adalah bahan bangunan baru dengan kecerahan dan ketangguhan yang tinggi. Pada awal tahun 1960-an, bekas Uni Soviet melakukan penelitian dan produksi keramik-kaca untuk persiapan tailing, dan kemudian dikembangkan di banyak negara dan membentuk produksi skala besar.

Tungsten glass-ceramics prepared by the cast-forming method using tungsten tailings as the main raw material without adding a crystal nucleating agent, simple and low cost, the main crystal phase of which is β-wollastonite, and its nucleation and crystallization mechanism belongs to surface nucleation and crystallization.

3. Other Applications of Tungsten Tailings

Selain aplikasi di atas, tailing tungsten juga digunakan dalam aplikasi lain seperti biokeramik, bahan polimer mineral, ubin keramik, dan sejenisnya.

The tungsten tailings are used as raw materials, and the slag, fly ash, and clay are used as auxiliary materials. The porous bioceramic filter material can be produced by roasting.

Tailing tungsten dan metakaolin merupakan bahan baku utama, dan water glass serta NaOH merupakan aktivator alkali untuk menghasilkan bahan polimer mineral.

Dimungkinkan juga untuk menggunakan tailing flotasi tungsten sebagai bahan baku untuk memproduksi ubin keramik, yang secara efektif dapat mengurangi suhu pembakaran dan mengurangi biaya produksi.

At present, the domestic reserves of tungsten resources are declining year by year, the grade of raw ore is getting lower and lower, and tungsten tailings resources are being recovered for valuable metals and non-metallic minerals, which can effectively improve resource utilization.

 

Conclusion: Maximizing Resource Efficiency

As tungsten ore grades decline, tailings recycling is essential for sustainable resource management. Whether recovering valuable metals or converting waste into construction materials, effective processing ensures economic and environmental benefits.

---

Mesin Tambang JXSC – With 40+ years of expertise, we provide:

• Peralatan Pertambangan (Crushers, screens, separators, gravity separator, flotation machines, magnetic separator, conveyor belt, etc.)
• Custom Processing Flowcharts

Optimize your tungsten tailings recovery—enhance productivity and sustainability today!