6N Ultra-High-Purity Sulfur Distillation da Tsarkake Tsarkakewa tare da Cikakkun Ma'auni‌

Samar da 6N (≥99.9999% tsafta) sulfur mai tsafta mai tsafta yana buƙatar distillation matakai masu yawa, adsorption mai zurfi, da tacewa mai tsafta don kawar da karafa, ƙazantattun ƙwayoyin cuta, da ɓarna. A ƙasa akwai tsarin sikelin masana'antu wanda ke haɗa injin distillation, taimakon injin microwave, da ingantattun fasahar jiyya.

I. Maganin Danyen Kaya da Cire Najasa

1. Zaɓin Kayan Kayan Kaya da Magani‌

• "Abubuwan bukatu‌: Tsabtace sulfur na farko ≥99.9% (3N grade), jimlar ƙarfe ≤500 ppm, Organic carbon abun ciki ≤0.1%.
• "Narkewar Taimakon Microwave:
  Ana sarrafa ɗanyen sulfur a cikin injin injin microwave (mitar 2.45 GHz, ƙarfin 10-15 kW) a 140-150°C. Jujjuyawar dipole da ke haifar da Microwave yana tabbatar da narkewa cikin sauri yayin da ke lalata ƙazantattun kwayoyin halitta (misali, mahaɗan kwalta). Lokacin narkewa: minti 30-45; zurfin shigar microwave: 10-15 cm
• "Wanke Ruwan Da Aka Kashe:
  Narkakken sulfur yana haɗe da ruwa mai narkewa (resistivity ≥18 MΩ · cm) a 1: 0.3 taro rabo a cikin wani motsi reactor (120 ° C, 2 mashaya matsa lamba) na 1 hour don cire ruwa mai narkewa salts (misali, ammonium sulfate, sodium chloride). An soke lokaci mai ruwa da ruwa kuma ana sake amfani da shi don zagayowar 2-3 har sai lokacin aiki na ≤5 μS/cm.

2. Multi-Stage Adsorption da Tacewa

• "Duniyar Diatomaceous/Adsorption Carbon Mai Kunnawa:
  Diatomaceous ƙasa (0.5-1%) da carbon da aka kunna (0.2-0.5%) ana ƙara su zuwa sulfur narkakkar ƙarƙashin kariya ta nitrogen (130 ° C, motsawa na awa 2) don ƙaddamar da rukunin ƙarfe da sauran kwayoyin halitta.
• "Tace Madaidaici:
  Tace-mataki-biyu ta amfani da masu tacewa sintered titanium (0.1 μm pore size) a ≤0.5 MPa matsa lamba tsarin. Ƙididdigar ɓarna bayan tacewa: ≤10 barbashi/L (girman> 0.5 μm).

II. Tsarin Distillation Vacuum Multi-Stage

1. Distillation na Farko (Cire ƙazantaccen ƙarfe)‌

• "Kayan aiki‌: High-tsarki ma'adini distillation shafi tare da 316L bakin karfe tsarin shiryarwa shiryawa (≥15 theoretical faranti), injin ≤1 kPa.
• "Ma'aunin Aiki:
• "Ciyar da Zazzabi‌: 250-280 ° C (sulfur yana tafasa a 444.6 ° C a ƙarƙashin matsa lamba na yanayi; injin yana rage wurin tafasa zuwa 260-300 ° C).
• "Rabon Reflux5:1–8:1; jujjuyawar yanayin saman shafi ≤±0.5°C.
• "Samfura‌: Tsaftace sulfur mai tsabta ≥99.99% (4N grade), jimlar ƙazantattun ƙarfe (Fe, Cu, Ni) ≤1 ppm.

2. Distillation na Kwayoyin Halitta na Sakandare (Cire Najasa Na Zamani)‌

• "Kayan aiki‌: Short-hanyar kwayoyin distiller tare da 10-20 mm evaporation-condensation rata, evaporation zafin jiki 300-320 ° C, injin ≤0.1 Pa.
• "Rabuwar rashin tsarki:
  Ƙananan tafasasshen kwayoyin halitta (misali, thioethers, thiophene) suna tururi kuma an kwashe su, yayin da ƙazanta masu tafasa (misali, polyaromatics) suka kasance a cikin ragowar saboda bambance-bambance a cikin hanyar kyauta na kwayoyin.
• "Samfura‌: Sulfur tsarki ≥99.999% (5N grade), Organic carbon ≤0.001%, ragowar adadin <0.3%.

3. Tatar da Manyan Yankuna (Samun Tsaftar 6N)‌

• "Kayan aiki‌: Mai gyara yanki na kwance tare da kula da zafin jiki da yawa (± 0.1 ° C), saurin tafiyar yanki 1-3 mm / h.
• "Warewa:
  Yin amfani da ƙididdiga masu rarraba (K=Csolid/CliquidK=Cm /Cruwa), yankin 20-30 yana wucewa ta hanyar tattara karafa (As, Sb) a ƙarshen ingot. 10-15% na ƙarshe na sulfur ingot an watsar da shi.

III. Bayan Jiyya da Ƙirƙirar Tsabtace Tsabtace

1. Ultra-Tsaftataccen Maganin Cire

• "Ether/Carbon Tetrachloride hakar:
  Sulfur ne gauraye da chromatographic-sa ether (1: 0.5 girma rabo) a karkashin ultrasonic taimako (40 kHz, 40 ° C) na minti 30 don cire alama iyakacin duniya organics .
• "Warware farfadowa:
  Molecular sieve adsorption da vacuum distillation yana rage ragowar sauran ƙarfi zuwa ≤0.1 ppm.

2. Ultrafiltration da ion Exchange

• "PTFE Membrane Ultrafiltration:
  Ana tace sulfur narkakkar ta 0.02 μm PTFE membranes a 160-180 ° C da ≤0.2 MPa matsa lamba.
• "Ion Exchange Resins:
  Chelating resins (misali, Amberlite IRC-748) cire ppb-matakin karfe ions (Cu²⁺, Fe³⁺) a 1-2 BV/h adadin kwarara.

3. Ƙirƙirar Muhalli mai Tsabtace

• "Inert Gas Atomization:
  A cikin ɗaki mai tsafta na aji 10, sulfur narkakkar yana atomized tare da nitrogen (matsa lamba 0.8-1.2 MPa) zuwa 0.5-1 mm granules mai siffar siffar (danshi <0.001%).
• "Fakitin Vacuum:
  Samfurin ƙarshe yana rufe injin-hatimi a cikin fim ɗin haɗe-haɗe na aluminum a ƙarƙashin ultra-pure argon (≥99.9999% tsarki) don hana iskar shaka.

IV. Mabuɗin Tsari

V. Sarrafa inganci da Gwaji

1. "Trace Nazari Nazari:

• "GD-MS (Glow Discharge Mass Spectrometry)‌: Gano karafa a ≤0.01 ppb.
• "TOC Analyzer‌: Yana auna kwayoyin carbon ≤0.001 ppm.

1. "Sarrafa Girman Barbashi:
   Diffraction Laser (Mastersizer 3000) yana tabbatar da karkacewar D50 ≤± 0.05 mm.
2. "Tsaftar Fasa:
   XPS (X-ray Photoelectron Spectroscopy) yana tabbatar da kauri oxide ≤1 nm.

VI. Tsaro da Tsarin Muhalli

1. "Rigakafin fashewa:
   Masu gano harshen wuta na infrared da tsarin ambaliya na nitrogen suna kula da matakan oxygen <3%
2. "Sarrafa fitarwa:

• "Acid Gases‌: Shafa NaOH mai mataki biyu (20% + 10%) yana cire ≥99.9% H₂S/SO₂.
• "VOCs‌: Zeolite rotor + RTO (850 ° C) yana rage wadanda ba methane hydrocarbons zuwa ≤10 mg/m³.

1. "Sake amfani da sharar gida:
   Rage yawan zafin jiki (1200 ° C) yana dawo da karafa; ragowar sulfur abun ciki <0.1%.

VII. Techno-Economic Metrics

• "Amfanin Makamashi800-1200 kWh wutar lantarki da 2-3 ton tururi da ton na 6N sulfur.
• "yawaSulfur dawo da ≥85%, ragowar adadin <1.5%.
• "Farashin‌: Farashin samarwa ~ 120,000-180,000 CNY / ton; Farashin kasuwa 250,000-350,000 CNY/ton (jinin semiconductor) .

Wannan tsari yana samar da sulfur na 6N don masu daukar hoto na semiconductor, abubuwan haɗin ginin III-V, da sauran aikace-aikacen ci gaba. Sa ido na ainihin-lokaci (misali, LIBS bincike na farko) da ISO Class 1 daidaitawar ɗaki mai tsabta suna tabbatar da daidaiton inganci.

Bayanan kafa

1. Magana 2: Matsayin Tsabtace Sulfur Masana'antu
2. Bayani na 3: Babban Dabarun Tacewa a Injiniyan Sinadari
3. Bincika 6: Babban-Tsaftataccen Materials sarrafa Littafin Jagora
4. Magana 8: Semiconductor-Grade Chemical Production Protocols
5. Magana 5: Inganta Distillation Vacuum