Kugadzirira kweBarium
Kugadzirira kwemaindasitiri emetallic bariuminosanganisira matanho maviri: kugadzirira kwebarium oxide uye kugadzirira kwesimbi barium nesimbi yekuderedza kupisa (aluminothermic reduction).
| Product | Barium | ||
| CAS Nha | 7647-17-8 | ||
| Batch Nha. | 16121606 | Huwandu: | 100.00kg |
| Zuva rekugadzira: | Zvita,16,2016 | Zuva rekuedzwa: | Zvita,16,2016 |
| Yedza chinhu w/% | Results | Yedza chinhu w/% | Results |
| Ba | >99.92% | Sb | <0.0005 |
| Be | <0.0005 | Ca | 0.015 |
| Na | <0.001 | Sr | 0.045 |
| Mg | 0.0013 | Ti | <0.0005 |
| Al | 0.017 | Cr | <0.0005 |
| Si | 0.0015 | Mn | 0.0015 |
| K | <0.001 | Fe | <0.001 |
| As | <0.001 | Ni | <0.0005 |
| Sn | <0.0005 | Cu | <0.0005 |
| Test Standard | Iva, Na uye zvimwe 16 zvinhu: ICP-MS Ca, Sr: ICP-AES Ba: TC-TIC | ||
| Mhedziso: | Teerera kune chiyero chebhizinesi | ||
(1) Kugadzirira kwe barium oxide
High-quality barite ore inofanira kutanga yasarudzwa nemaoko uye yakayangarara, uye ipapo simbi nesilicon zvinobviswa kuti uwane concentrate ine zvinopfuura 96% barium sulfate. Iyo ore poda ine saizi isingasviki makumi maviri mesh inosanganiswa nemarasha kana petroleum coke poda muhuremu hwe4: 1, uye yakagochwa pa1100 ℃ muchoto chinodzoreredza. Iyo barium sulfate inoderedzwa kuita barium sulfide (inowanzozivikanwa se "black ash"), uye iyo inowanikwa barium sulfide solution inonyudzwa nemvura inopisa. Kuti ushandure barium sulfide kuita barium carbonate precipitation, sodium carbonate kana carbon dioxide inoda kuwedzerwa kune barium sulfide aqueous solution. Barium oxide inogona kuwanikwa nekusanganisa barium carbonate nekabhoni poda uye nekuipisa pamusoro pe800 ℃. Zvinofanira kucherechedzwa kuti barium oxide yakasvibiswa kuita barium peroxide pa500-700 ℃, uye barium peroxide inogona kuora kuita barium oxide pa700-800 ℃. Nokudaro, kuitira kuti udzivise kugadzirwa kwebarium peroxide, chigadzirwa checalcined chinoda kunyoroveswa kana kudzimwa pasi pekuchengetedzwa kwegesi inert.
(2) Aluminothermic kuderedza nzira kubudisa simbi barium
Nekuda kwezvinhu zvakasiyana-siyana, pane maitiro maviri ealuminium kuderedza barium oxide:
6BaO+2Al→3BaO•Al2O3+3Ba↑
Kana kuti: 4BaO+2Al→BaO•Al2O3+3Ba↑
Pa 1000-1200 ℃, maitiro maviri aya anoburitsa barium shoma, saka pombi yevacuum inodiwa kuti irambe ichiendesa iyo barium mhute kubva kunzvimbo yekupindura kuenda kunzvimbo ye condensation kuitira kuti maitiro arambe achienderera kurudyi. Iyo inosara mushure mekuita ine muchetura uye inoda kurapwa isati yaraswa.
Kugadzirira kwezvakajairwa barium makemikari
(1) Kugadzirira nzira yebharium carbonate
① Carbonization nzira
Iyo carbonization nzira inonyanya kusanganisira kusanganisa barite nemarasha mune imwe chikamu, ichipwanya iwo mumoto unotenderera uye calcining uye nekudzidzikisa pa1100-1200 ℃ kuwana barium sulfide kunyunguduka. Carbon dioxide inounzwa mu barium sulfide solution ye carbonization, uye maitiro anotevera:
BaS+CO2+H2O=BaCO3+H2S
Iyo yakawanikwa barium carbonate slurry yakasvibiswa, yakashambidzwa uye inosefa, yobva yaomeswa nekupwanywa pa 300 ℃ kuti iwane yakapera barium carbonate chigadzirwa. Iyi nzira iri nyore mukugadzirisa uye yakaderera mumutengo, saka inogamuchirwa nevakawanda vanogadzira.
② Nzira yekuora kaviri
Barium sulfide uye ammonium carbonate inopinda kaviri decomposition reaction, uye maitiro ndeaya anotevera:
BaS+(NH4)2CO3=BaCO3+(NH4)2S
Kana kuti barium chloride inopindirana ne potassium carbonate, uye maitiro ndeaya anotevera:
BaCl2+K2CO3=BaCO3+2KCl
Chigadzirwa chinowanikwa kubva kune chekuita chinoshambidzwa, kusefa, kuomeswa, nezvimwe kuti uwane yakapedzwa barium carbonate chigadzirwa.
③ Barium carbonate nzira
Barium carbonate powder inobatwa neammonium munyu kuti ibudise soluble barium salt, uye ammonium carbonate inodzokororwa. Soluble barium munyu inowedzerwa kune ammonium carbonate kuti iite yakanatswa barium carbonate, iyo inosefa uye yakaomeswa kuti igadzire chigadzirwa chakapedzwa. Pamusoro pezvo, doro raamai rinowanikwa rinogona kugadzikiswa. Mhinduro yacho ndeiyi:
BaCO3+2HCl=BaCl2+H2O+CO2
BaCl2+2NH4OH=Ba(OH)2+2NH4Cl
Ba(OH)2+CO2=BaCO3+H2O
(2) Kugadzirira nzira ye barium titanate
① Solid chikamu nzira
Barium titanate inogona kuwanikwa ne calcining barium carbonate uye titanium dioxide, uye chero zvimwe zvinhu zvinogona kuiswa mairi. Mhinduro yacho ndeiyi:
TiO2 + BaCO3 = BaTiO3 + CO2↑
② Coprecipitation nzira
Barium chloride uye titanium tetrachloride zvinosanganiswa uye zvinonyungudutswa zvakaenzana, zvinopisa kusvika 70°C, uye ipapo oxalic acid inowedzerwa dropwise kuti iwane hydrated barium titanyl oxalate [BaTiO(C2O4)2•4H2O] precipitate, inogezwa, yakaomeswa, yozowana pyrolyzed kuti iwane pyrolyzed. Mhinduro yacho ndeiyi:
BaCl2 + TiCl4 + 2H2C2O4 + 5H2O = BaTiO(C2O4)2•4H2O↓ + 6HCl
BaTiO(C2O4)2•4H2O = BaTiO3 + 2CO2↑ + 2CO↑ + 4H2O
Mushure mekurova metatitanic asidhi, barium chloride solution inowedzerwa, uye ipapo ammonium carbonate inowedzerwa pasi pekukurudzira kuti ibudise coprecipitate ye barium carbonate uye metatitanic acid, iyo inoverengerwa kuti iwane chigadzirwa. Mhinduro yacho ndeiyi:
BaCl2 + (NH4)2CO3 = BaCO3 + 2NH4Cl
H2TiO3 + BaCO3 = BaTiO3 + CO2↑ + H2O
(3) Kugadzirira kwe barium chloride
Nzira yekugadzira ye barium chloride inonyanya kusanganisira hydrochloric acid nzira, barium carbonate nzira, nzira ye calcium chloride uye nzira ye magnesium chloride maererano nenzira dzakasiyana kana zvinhu.
① Hydrochloric acid nzira. Kana barium sulfide inorapwa nehydrochloric acid, mhinduro huru ndeiyi:
BaS+2HCI=BaCl2+H2S↑+Q
②Barium carbonate nzira. Yakagadzirwa nebarium carbonate (barium carbonate) seyakagadzirwa, maitiro makuru ndeaya:
BaCO3+2HCI=BaCl2+CO2↑+H2O
③Nzira yeCarbonization
Migumisiro yeBarium pahutano hwevanhu
Ko barium inobata sei hutano?
Barium haisi chinhu chakakosha kumuviri wemunhu, asi ine simba guru pahutano hwevanhu. Barium inogona kuratidzirwa kune barium panguva yekuchera barium, kunyungudutswa, kugadzira, uye kushandiswa kwe barium compounds. Barium nemakomponi ayo anogona kupinda mumuviri kuburikidza nekufema turakiti, digestive turakiti, uye ganda rakakuvadzwa. Occupational barium poisoning inonyanya kukonzerwa nekufema kwekufema, kunoitika munjodzi panguva yekugadzirwa uye kushandiswa; non-occupational barium poisoning inonyanya kukonzerwa nekudya kwekudya kwekudya, kunyanya kunokonzerwa nekupinza kwetsaona; liquid soluble barium compounds inogona kutorwa kuburikidza neganda rinenge rakuvadzwa. Acute barium poisoning inonyanya kukonzerwa nekupinza netsaona.
Kushandiswa kwekurapa
(1) Barium kudya radiography
Barium meal radiography, inozivikanwawo sekuti digestive tract barium radiography, inzira yekuongorora inoshandisa barium sulfate sechinhu chinosiyanisa kuratidza kana paine maronda mudumbu pasi pe X-ray irradiation. Barium meal radiography ndeyekupinzwa nemuromo kweanosiyanisa maajenti, uye mushonga webarium sulfate unoshandiswa seanosiyanisa ajenti hainyungudika mumvura uye lipids uye haizobatiki nemudumbu mucosa, saka haina chepfu kuvanhu.
Zvinoenderana nezvinodiwa zvekuongororwa kwekiriniki uye kurapwa, gastrointestinal barium meal radiography inogona kukamurwa kuita yekumusoro gastrointestinal barium meal, yakazara gastrointestinal barium meal, colon barium enema uye diki intestinal barium enema kuongororwa.
Barium chepfu
Nzira dzekuratidzira
Barium inogona kuratidzwabariumpanguva yekuchera barium, kunyungudutsa, uye kugadzira. Mukuwedzera, barium nemishonga yayo inoshandiswa zvakanyanya. Yakajairika muchetura barium munyu unosanganisira barium carbonate, barium chloride, barium sulfide, barium nitrate, uye barium oxide. Zvimwe zvinodikanwa zvezuva nezuva zvakare zvine barium, senge barium sulfide mumishonga yekubvisa bvudzi. Zvimwe zvekurima zvipembenene zvipembenene kana rodenticides zvakare ine soluble barium munyu senge barium chloride uye barium carbonate.
Nguva yekutumira: Jan-15-2025