6N Ultra-High-High-High-Purity Sulfur Disstillation and Purification process with Detailed Parameters

Tlhahiso ea 6N (≥99.9999% purity) ultra-high-purity sulphur e hloka distillation tse ngata, adsorption e tebileng, le ultra-clean filtration ho felisa litšepe, litšila tsa tlhaho le likaroloana. Ka tlase ke ts'ebetso ea boemo ba indasteri e kopanyang vacuum distillation, tlhoekiso e thusoang ke microwave, le theknoloji e nepahetseng ea kamora kalafo.

I. Phekolo ea Lintho Tse Hloahloa le ho Tlosa Litšila

1. Khetho ea thepa e tala le kalafo esale pele

• "Litlhoko: Ho hloeka ha sebabole sa pele ≥99.9% (3N grade), litšila tsohle tsa tšepe ≤500 ppm, organic carbon content ≤0.1%.
• "Ho qhibiliha ho Thusang ka Microwave:
  Sulfur e tala e sebetsoa ka mochine o matla oa microwave (maqhubu a 2.45 GHz, matla a 10–15 kW) ka 140–150°C. Ho potoloha ha dipole ka microwave ho etsa bonnete ba ho qhibiliha ka potlako ha ho ntse ho senya litšila tsa lintho tse phelang (mohlala, metsoako ea tar). Nako ea ho qhibiliha: 30-45 metsotso; botebo ba ho kenella ka microwave: 10-15 cm
• "Ho Hlatsoa ka Metsi a Khaotsoeng:
  Sebabole se qhibilihisitsoeng se kopantsoe le metsi a deionized (resistivity ≥18 MΩ·cm) ka karolelano ea boima ba 1: 0.3 ka mochine o tsoileng matsoho (120 ° C, khatello ea 2 bar) bakeng sa hora e le 'ngoe ho tlosa letsoai le qhibilihang ka metsing (mohlala, ammonium sulfate, sodium chloride). Mokhahlelo oa metsi o tlosoa 'me o sebelisoa hape bakeng sa lipotoloho tsa 2-3 ho fihlela conductivity ≤5 μS / cm.

2. Multi-Stage Adsorption le Filtration

• "Diatomaceous Earth/Activated Carbon Adsorption:
  Diatomaceous Earth (0.5-1%) le activated carbon (0.2-0.5%) li kenyelelitsoe ho sebabole se qhibilihisitsoeng tlas'a tšireletso ea naetrojene (130 ° C, 2-hora e susumetsang) ho adsorb lisebelisoa tsa tšepe le li-organics tse setseng.
• "Tlhophiso e nepahetseng ea Ultra-Precision:
  Ho hloekisa ka mekhahlelo e 'meli ho sebelisa li-filters tse entsoeng ka titanium (0.1 μm pore size) ho ≤0.5 MPa tsamaiso ea khatello. Palo ea likaroloana tsa morao-rao: ≤10 likaroloana / L (boholo> 0.5 μm).

II. Multi-Stage Vacuum Distillation process

1. Puisano ea mantlha (Ho tlosoa ha tšepe e sa hloekang).

• "Thepa: Kholomo e phahameng ea quartz distillation e nang le 316L ea tšepe e sa jeleng pakete e hlophisitsoeng (≥15 lipoleiti tsa theoretical), vacuum ≤1 kPa .
• "Mekhahlelo ea Ts'ebetso:
• "Fepa Mocheso: 250–280°C (sebabole se bela ho 444.6°C tlas’a khatello e tikolohong; vacuum e fokotsa ntlha e belang ho 260–300°C).
• "Karolelano ea Reflux: 5:1–8:1; kholomo holimo mocheso feto-fetoha ≤±0.5°C.
• "Sehlahisoa: bohloeki ba sebabole bo koahetsoeng ≥99.99% (4N grade), litšila tsohle tsa tšepe (Fe, Cu, Ni) ≤1 ppm.

2. Distillation ea Bobeli ea Limolek'hule (Ho Tlosoa ha Litšila tsa Organic).

• "Thepa: Tsela e khuts'oane ea molecular distiller e nang le 10-20 mm evaporation-condensation lekhalo, mocheso oa mouoane 300-320 ° C, vacuum ≤0.1 Pa .
• "Karohano ea Tšilafalo:
  Likokoana-hloko tse belang tse tlaase (mohlala, thioethers, thiophene) li fufuleloa 'me li tlosoa, ha litšila tse belang haholo (mohlala, polyaromatics) li sala ka masala ka lebaka la phapang ea tsela e sa lefelloeng ea limolek'hule.
• "Sehlahisoa: Sulfur purity ≥99.999% (5N grade), organic carbon ≤0.001%, sekhahla sa masala <0.3%.

3. Tlhoekiso ea Libaka tse Phahameng (Ho Finyella Bohloeki ba 6N).

• "Thepa: Sehloekisi sa libaka se tšekaletseng se nang le taolo ea mocheso oa libaka tse ngata (±0.1°C), lebelo la maeto a libaka 1–3 mm/h.
• "Karohano:
  Ho sebelisa li-coefficients tsa karohano (K=Csolid/CliquidK=Ctiileng/Cliquid), 20-30 zone feta concentrate metals (As, Sb) qetellong ea ingot. 10-15% ea ho qetela ea ingot ea sebabole e lahloa.

III. Kalafo ea Ka mor'a Kalafo le Ho Theha ka Bohloeki bo Botle haholo

1. Ultra-Pure Solvent Extraction

• "Ho ntšoa ha Ether/Carbon Tetrachloride:
  Sebabole se kopantsoe le chromatographic-grade ether (1: 0.5 volume ratio) tlas'a thuso ea ultrasonic (40 kHz, 40 ° C) bakeng sa metsotso e 30 ho tlosa trace polar organics .
• "Pholiso ea Solvent:
  Molek'hule sieve adsorption le vacuum distillation fokotsa masala a solvent ho ≤0.1 ppm.

2. Ultrafiltration le Ion Exchange

• "PTFE Membrane Ultrafiltration:
  Sebabole se qhibilihisitsoeng se tlhotloa ka 0.02 μm PTFE membranes ho 160-180 ° C le ≤0.2 MPa khatello.
• "Ion Exchange Resins:
  Li-resin tsa chelating (mohlala, Amberlite IRC-748) li tlosa li-ion tsa tšepe tsa boemo ba ppb (Cu²⁺, Fe³⁺) ka sekhahla sa phallo ea 1–2 BV/h.

3. Ho theha Tikoloho e Hloekileng Haholo

• "Atomization ea Khase e Inert:
  Ka phaposing e hloekileng ea Sehlopha sa 10, sebabole se qhibilihisitsoeng se na le athomo ea nitrogen (0.8–1.2 MPa khatello) ho 0.5-1 mm spherical granules (mongobo <0.001%).
• "Sephutheloana sa Vacuum:
  Sehlahisoa sa ho qetela ke vacuum e tiisitsoeng ka filimi e kopantsoeng ea aluminium tlas'a ultra-pure argon (≥99.9999% bohloeki) ho thibela oxidation.

IV. Li-Parameters tsa Ts'ebetso ea Key

V. Taolo ea Boleng le Teko

1. "Tlhahlobo ea Tšilafalo ea Trace:

• "GD-MS (Glow Discharge Mass Spectrometry): E lemoha litšepe ho ≤0.01 ppb.
• "TOC Analyzer: E lekanya organic carbon ≤0.001 ppm.

1. "Taolo ea Boholo ba Karolo:
   Laser diffraction (Mastersizer 3000) e netefatsa ho kheloha ha D50 ≤± 0.05 mm.
2. "Bohloeki Bokaholimo:
   XPS (X-ray Photoelectron Spectroscopy) e tiisa bokaholimo ba oxide e botenya ≤1 nm .

VI. Tšireletseho le Moralo oa Tikoloho

1. "Thibelo ea ho phatloha:
   Lisebelisoa tsa lelakabe la infrared le lits'ebetso tsa likhohola tsa naetrojene li boloka maemo a oksijene <3%
2. "Taolo ea ho Emission:

• "Likhase tsa Asiti: Ho hloekisa NaOH ka mekhahlelo e 'meli (20% + 10%) ho tlosa ≥99.9% H₂S/SO₂.
• "Li-VOCs: Zeolite rotor + RTO (850°C) e fokotsa li-non-methane hydrocarbons ho ≤10 mg/m³ .

1. "Matlakala a Recycling:
   Phokotso ea mocheso o phahameng (1200 ° C) e khutlisa litšepe; masalela a sebabole <0.1%.

VII. Techno-Economic Metrics

• "Tšebeliso ea Matla: Motlakase oa 800–1200 kWh le mouoane oa lithane tse 2–3 ka tone ea 6N sebabole.
• "Khefutsa: Sebabole ho hlaphoheloa ≥85%, sekhahla sa masala <1.5%.
• "LitšenyeheloLitšenyehelo tsa tlhahiso ~ 120,000–180,000 CNY/ton; theko ea 'maraka 250,000–350,000 CNY/ton (semiconductor grade) .

Ts'ebetso ena e hlahisa sebabole sa 6N bakeng sa li-photoresists tsa semiconductor, li-substrates tsa motsoako oa III-V, le lisebelisoa tse ling tse tsoetseng pele. Tlhokomelo ea nako ea 'nete (mohlala, tlhahlobo ea mantlha ea LIBS) le tlhahlobo ea kamore ea bohloeki ea ISO Class 1 e netefatsa boleng bo ts'oanang.

Mengolo e botlaaseng ba leqephe

1. Reference 2: Maemo a Tlhoekiso ea Sebabole sa Indasteri
2. Reference 3: Mekhoa e tsoetseng pele ea ho Filtration ho Boenjiniere ba Lik'hemik'hale
3. Reference 6: High-Purity Materials Processing Handbook
4. Reference 8: Mekhoa ea Tlhahiso ea Lik'hemik'hale ea Semiconductor-Grade
5. Reference 5: Vacuum Distillation Optimization