Tsarin Tsabta na Selenium

Tsarkakewa na m selenium (≥99.999%) ya ƙunshi haɗin hanyoyin jiki da sunadarai don cire ƙazanta kamar su, pb, fe, da kamar. Wadannan hanyoyin maɓalli ne da sigogi:

1. Vaculum Distillation

Tsarin gudana:

1. Sanya Selenium (≥999.9%) a cikin Quartz mai rauni a cikin ternace tnerace.

2. Zafi zuwa 300-500 ° C a ƙarƙashin Vacuum (1-100 pa) na minti 60-180.

3. Slenyy Vapor Careses a cikin biyu-mataki (ƙananan mataki tare da pb / barbashi, mataki na selenium tarin).

4. Tattara selener daga saman na farko; 碲 (Te) da sauran rashin ƙarfi masu tafasa sun ci gaba da kasancewa cikin ƙananan matakin.

Sigogi:

- zazzabi: 300-500 ° C

- matsa lamba: 1-100 pa

- Contenter kayan: ma'adini ko bakin karfe.

2

Tsarin gudana:

1. Kokewar oxidation

2. Haɓaka hakar abubuwan da ke tattare: narke Seo₂ a cikin maganin ethanol-ethanol, tace fitar da teoc precicoration.

3. Rage: Yi amfani da Hydrazine (N₂h₄) don rage Seo₂ zuwa Selenammal.

4. Je Je-te-

5. Kammalawa na ƙarshe na distillation: tsaftace selenium a 300-500 ° C da 10000 pa don cimmaaci 6n (99.9999%) tsarkakakke.

Sigogi:

- zazzabi na haushi: 500 ° C

- Hydrazine Serage: wuce haddi don tabbatar da cikakken ragi.

3. Tsarkakewa na lantarki

Tsarin gudana:

1. Yi amfani da electrolyte (misali, selenus acid) tare da damans na yau da kullun na 5-10 a / dm².

2. Adalci na selenium a kan Katuri, yayin da selenium eteles othes a ƙofar.

Sigogi:

- Damara ta yanzu: 5-10 A / DM²

- Wutar lantarki: Seelenus acid ko Seelate bayani.

4. Ruwa mai warwarewa

Tsarin gudana:

1. Cire se⁴⁺ daga mafita ta amfani da tbp (trioctlyl phosphate) ko Toa (TrIOctlamine) a cikin hydrochloric ko kafofin watsa labarai na sulfurach.

2. Tsiri da kuma hazo selenium, to recrystallize.

Sigogi:

- Aclantant: tbp (HCL Matsakaici) ko Toa (Matsakaici matsakaici)

- Yawan matakai: 2-3.

5. Yankin narkewa

Tsarin gudana:

1. Azaba da tsufa-Selenium ingots don cire impuce impurities.

2. Ya dace da cimma nasara> 5n tsarkakakke daga babban-tsarkakakke kayan kayan.

SAURARA: Yana buƙatar kayan aiki na ƙwararru kuma yana da ƙarfi-sosai.

Shawara

Don tunani na gani, koma ga lambobi masu zuwa daga wallafe-wallafe:

- Saitin distillation: Schematic na tsarin-mataki na biyu.

- Se-Time lokaci mai zane (lokaci-lokaci: Bayyana kalubale rabuwa saboda rufe tafasa na tafasa.

Nassoshi

- Vachuum distillation da hanyoyin sunadarai:

- electrolytic da kuma abubuwan fashewa:

- Hanyoyi masu ci gaba da kalubale: