Kuwala Kwambiri Kuyeretsa Ziyeneretso

Kudziyeretsa kwa seleni la seleniumu (≥9.999%) kumaphatikizapo kuphatikiza njira zamagetsi ndi mankhwala kuchotsa zosayera monga Te, PB, ndi. Izi ndi njira zazikuluzikulu ndi magawo:

1. Tsitsi la vacuum

Kuyenda Kwapakati:

1. Ikani rode seleniel (≥9.9%) mu quartz yolimba mkati mwa nduna ya vatuum distillation.

2. Kutentha mpaka 300-500 ° C pansi pa vacuum (1-100 pa) kwa mphindi 60-180.

3. Selenium nthenga zimatsimikiza za contorser ya awiri (yotsika ndi PB / CU TIRESS, kumtunda kwa Selenium kusonkhanitsidwa).

4. Sonkhanitsani nsomba zam'madzi kuchokera kumtunda;

Magawo:

- kutentha: 300-500 ° C

- Kupanikizika: 1-100 pa

- Zosangalatsa: Quartz kapena chitsulo chosapanga dzimbiri.

2. Kuyeretsa kwamankhwala + yunitsotikulu

Kuyenda Kwapakati:

1.

2. Solvent Kuchotsa: Sungunulani seo₂ mu njira yamadzi ya ethanol, sefana ndipende.

3. Kuchepetsa: Gwiritsani ntchito hydrazine (N₂h₄) kuti muchepetse seo₂ ku zilema.

4. Kuzama de-te: oxizize Senuum kachiwiri kwa Seo₄, ndiye kuti atulutse te pogwiritsa ntchito kuchotsa.

5. Kutsitsimuka komaliza kutsitsimutsa: kuyeretsa a Selenium pa 300-500 ° C ndi 1-100 Pa kuti akwaniritse 6n (99.999%) Kuyera.

Magawo:

- Kutentha kwa oxidation: 500 ° C

- Mlingo wa hydrazine: Zowonjezera kuti muwonetsetse kuchepetsa kwathunthu.

3. Kuyeretsa ma electolytic

Kuyenda Kwapakati:

1. Gwiritsani ntchito electrolyte (mwachitsanzo, senuous asidi) wokhala ndi kachulukidwe ka 5-10 a / 20 a / dm².

2. A Selenium amasungidwa pa Camtoode, pomwe a Selenium oxide olowa m'malo owonekera.

Magawo:

- kachulukidwe kalikonse: 5-10 a / dm²

- Elecrolyte: Selenius asidi kapena selenite yankho.

4.. Zosungunulira

Kuyenda Kwapakati:

1. Kutulutsa se⁴⁺ kuchokera yankho pogwiritsa ntchito TBP (Trityl Phosphate) kapena Toa (Trioctylamine) mu hydrochloric kapena sulufuric acito caul.

2. Mbalaza ndi kudutsa Selenium, kenako bwerezani.

Magawo:

- Zowonjezera: TBP (HCL sing'anga) kapena Toa (H₂SO₄ sing'anga)

- Chiwerengero cha magawo: 2-3.

5..

Kuyenda Kwapakati:

1. Zoyang'anira mobwerezabwereza zitsulo zitsulo kuti muchotse zosayenerera.

2. Oyenera kukwaniritsa> 5n kuyera kochokera ku zinthu zoyera.

Chidziwitso: pamafunika zida zamakono ndipo ndi mphamvu kwambiri.

Chidziwitso

Pofuna kuwoneka, onani zotsatirazi kuchokera ku mabuku:

- Kukhazikitsa Kutalika Kwapakati: Scomitic of Forenser System.

- Chithunzi cha Se-Teseji: Zofanizira Mavuto Olekanitsidwa Chifukwa cha Kutseka Mfundo Zowotcha.

Maumboni

- Vutom Supercution ndi njira zamankhwala:

- electrolytic ndi solvent kuchotsa:

- Njira Zapamwamba ndi Zovuta: