Antimony
(information)
✅ Continuing with **Antimony (Sb)** — a metalloid historically used in medicines and alloys, but today its **largest use is in flame retardants** and **lead-acid battery alloys**. It’s also important in **semiconductors, glass, and specialty solders**. --- # 🔥 Modern Antimony Uses by Industry (Option A Format) ### 🔋 **1–4: Batteries & Alloys (~35–40%)** 1. **Lead-Antimony Alloys in Lead-Acid Batteries** – Improves strength and corrosion resistance. 2. **Lead-Free Solders (Sn-Sb, Sn-Ag-Sb)** – High-performance electronic solders. 3. **Bearing Alloys (Babbitt Metals)** – For heavy machinery and turbines. 4. **Ammunition Alloys (Pb-Sb)** – In bullets and lead shot. --- ### 🧯 **5–8: Flame Retardants (~35–40%)** 5. **Antimony Trioxide (Sb₂O₃) with Halogenated Compounds** – Primary flame retardant synergy. 6. **Plastics & Textiles Fire Retardants** – Upholstery, carpets, curtains. 7. **Electronics Casings & Housings** – Flame resistance in TVs, laptops, and appliances. 8. **Construction Materials (Cables & Insulation)** – Enhanced fire safety. --- ### 🏭 **9–12: Glass & Ceramics (~10–12%)** 9. **Clarifying Agent in Optical Glass** – Removes bubbles and discoloration. 10. **Ceramic Glazes & Pigments** – Yellow, black, and white coloring agents. 11. **Specialty Glass for Electronics** – LCD and smartphone display substrates. 12. **Infrared-Transmitting Glass** – Antimony selenide compounds for optics. --- ### 💻 **13–16: Semiconductors & Electronics (~5–7%)** 13. **Gallium Antimonide (GaSb)** – Infrared detectors and laser diodes. 14. **Indium Antimonide (InSb)** – High-speed transistors and thermal imaging. 15. **Thermoelectric Materials (Sb₂Te₃)** – Waste heat to electricity conversion. 16. **Photovoltaics (Antimony-Based Thin Films)** – Experimental solar cells. --- ### 🧪 **17–20: Chemicals, Catalysts & Specialty (~3–5%)** 17. **Polyethylene Terephthalate (PET) Catalyst** – Sb compounds in plastic bottle production. 18. **Rubber Vulcanization Additives** – Enhances durability. 19. **Pigments for Paints & Plastics** – Stable, bright colorants. 20. **Medicinal & Biocidal Compounds (Legacy/Regulated)** – Antiprotozoal drugs, antifungal agents. --- ### 📌 Sector Share Summary | Sector Group | % of Global Antimony Use | | ---------------------------- | ------------------------ | | Batteries & Alloys | ~35–40% | | Flame Retardants | ~35–40% | | Glass & Ceramics | ~10–12% | | Semiconductors & Electronics | ~5–7% | | Chemicals & Specialty Uses | ~3–5% | --- ✅ **Next up: Tellurium (Te)** — a rare metalloid best known for **CdTe solar cells, thermoelectrics, and specialized alloys**. Say **“continue”** to move on to **Tellurium** in the same structured format.Known Methods of Extraction
Perfect 👍 — next in **periodic table order** is **Antimony (Sb, atomic number 51).** Antimony is a **metalloid** that occurs naturally mainly as **stibnite (Sb₂S₃)**. Industrial extraction involves **roasting, leaching, and reduction** to produce metallic antimony. Here are the **20 most common methods of extracting Antimony**: --- # **20 Most Common Methods of Extracting Antimony** ### **A. Extraction from Antimony Ores** 1. **Gravity Concentration of Stibnite (Sb₂S₃)** – Separates dense antimony sulfide from gangue. 2. **Flotation of Stibnite** – Concentrates fine-grained Sb₂S₃ ores. 3. **Roasting of Sb₂S₃ → Sb₂O₃ + SO₂** – Converts sulfide to oxide. 4. **Leaching of Sb₂O₃ with HCl or NaOH** – Produces soluble antimony salts. 5. **Purification by Precipitation** – Removes impurities like arsenic, lead, and iron. 6. **Solvent Extraction of Antimony Salts** – Organophosphorus extractants used for purification. --- ### **B. Reduction to Metallic Antimony** 7. **Reduction of Sb₂O₃ with Carbon (Carbothermic Reduction)** – Sb₂O₃ + 3 C → 2 Sb + 3 CO. 8. **Reduction of Sb₂O₃ with Iron or Zinc** – Laboratory or small-scale method. 9. **Electrolytic Reduction of Sb Salts** – Produces high-purity metallic Sb. 10. **Aluminothermic Reduction of Sb₂O₃ → Sb + Al₂O₃** – Lab or specialty method. 11. **Hydrogen Reduction of Sb₂O₃ → Sb + H₂O** – Laboratory-scale method. 12. **Vacuum Distillation of Metallic Antimony** – Purification for high-purity Sb. --- ### **C. Recovery from Byproducts / Secondary Sources** 13. **Recovery from Lead Refinery Slags** – Sb as a minor byproduct. 14. **Recovery from Copper and Tin Refinery Residues** – Acid leaching and reduction. 15. **Recovery from Spent Alloys Containing Sb** – Melting and separation. 16. **Recovery from Recycled Batteries or Electronics** – Chemical leaching + precipitation. --- ### **D. Laboratory / Experimental Methods** 17. **Plasma Reduction of Sb₂O₃ or Sb Chlorides** – High-purity experimental method. 18. **Solar-Thermal Reduction of Antimony Oxides or Halides** – Experimental renewable energy method. 19. **Zone Refining of Metallic Antimony** – Produces ultra-high purity Sb. 20. **Electroless Deposition of Antimony from Salts** – Produces thin metallic coatings. --- ✅ **Summary:** * **Main industrial sources:** Stibnite (Sb₂S₃). * **Primary extraction steps:** Ore concentration → roasting → leaching/purification → reduction → metallic antimony. * **Metallic antimony:** Produced via carbothermic, metallothermic, or electrolytic reduction. * **Byproduct sources:** Lead, copper, tin refining residues, spent alloys, recycled electronics. * **Laboratory/experimental:** Plasma, solar-thermal, zone refining, electroless deposition. --- Next in periodic order is \*\*Tellurium (Te, atomic number 52). Do you want me to continue with **20 extraction methods for Tellurium**?
