Yakanyanya Kuchenesa Selenium Inchention Processes

Kucheneswa kweakakwirira-chaimaniso-po9llity Izvi zvinotevera zvakakosha maitiro uye parameter:

1. Vacuum distillation

Maitiro anoyerera:

1. Isa Crude Selenium (≥99.9%) mune quartz inochengeti mukati mecuum distillation choto.

2. Kupisa kusvika 300-500 ° C Under Vacuum (1-100 PA) kwemaminitsi makumi matanhatu nemasere.

3.

4. Kuunganidza Selenium kubva kune yepamusoro condenser; 碲 (te) uye kumwe kusvibiswa-kusvibiswa kwakasimba kunoramba kuri muchikamu chezasi.

Paramita:

- Tembiricha: 300-500 ° C

- Dzvinyiriro: 1-100 PA

- Condenser zvinyorwa: quartz kana simbi isina tsvina.

2. Kuchenesa kwemakemikari + vacuum distillation

Maitiro anoyerera:

1.

2.

3. Kuderedza: Shandisa Hydrazine (N₂H₄) kuderedza Seo₂ kune Elemental Selenium.

4

5..

Paramita:

- Okudhi Tembiricha: 500 ° C

- Hydrazine dosage: Yakawandisa kuti ive nechokwadi chekudzikiswa kwakazara.

3. Kuchenesa Electrolytic

Maitiro anoyerera:

1. Shandisa electrolyte (semuenzaniso, selenous acid) ine density yazvino ye5-10 a / dm².

2.

Paramita:

- Yazvino Density: 5-10 A / DM²

- Electrolyte: Selenous acid kana solenate solution.

4. Solvent Exction

Maitiro anoyerera:

1. Bvisa se‖ kubva kumhinduro uchishandisa TBP (tributyl phosphate) kana toa (trioctylamine) muhydrochloric kana sulfutic acid media.

2. Strip uye lippitate Selenium, wozodzokorora.

Paramita:

- Inowedzera: TBP (HCL (HCL Medium) kana Toa (H₂so₄ Pakati)

- Nhamba yematanho: 2-3.

5. Zone Kunyungudza

Maitiro anoyerera:

1. Dzokorora zone-nyauka Selenium ingots kuti ubvise kusvibiswa kusvibiswa.

2. Inokodzera kuwana> 5n kuchena kubva kune yakanyanya-yekuchena kutanga zvinhu.

Ongorora: Inoda michina yakakosha uye isimba-rakanyanya.

Zano

Zvekuonekwa kwekuona, revai kune dzinotevera nhamba kubva kumabhuku:

- vacuum distillation setup: Schematic yeimwe-nhanho condenser system.

- Se-te-tehase dhizaini: inoratidza kuparadzanisa matambudziko nekuda kwekuvhara kwepedyo mapoinzi.

Mareferensi

- vacuum distillation uye nzira dzemakemikari:

- Electrolytiti uye solvent kubviswa:

- Maitiro Ekutanga nematambudziko: