Strontium carbonate
Strontium carbonate shine muhimmin albarkatun masana'antu tare da fa'idodin amfani.Yana da ma'adinan carbonate, na cikin rukunin aragonite, wanda ba shi da yawa kuma yana faruwa a cikin farar ƙasa ko marlstone a cikin nau'in veins.A cikin yanayi, yawanci ya wanzu a cikin nau'i na rhodochrosite na ma'adinai da strontite, tare da barium carbonate, barite, calcite, celestite, fluorite da sulfide, maras wari da rashin jin daɗi, mafi yawa fari lafiya foda ko launi rhombic crystal, ko launin toka, rawaya-fari. kore ko launin ruwan kasa lokacin da ƙazanta suka kamu da ita.Strontium carbonate crystal nau'in allura ne, kuma jimillarsa galibin granular, columnar, da allurar rediyoaktif.Siffar sa ba ta da launi, fari, koren rawaya, tare da bayyananniyar haske zuwa kyalli na gilashi, ƙoshin mai mai karaya, gaggauce, da hasken shuɗi mai rauni mai rauni a ƙarƙashin hasken cathode.Strontium carbonate yana da tsayayye, maras narkewa a cikin ruwa, dan kadan mai narkewa a cikin ammonia, ammonium carbonate da carbon dioxide cikakken bayani mai ruwa, kuma maras narkewa a cikin barasa.Bugu da ƙari, strontium carbonate kuma wani muhimmin albarkatun kasa ne ga celestite, tushen ma'adinai mai wuya.A halin yanzu, babban matakin Celestite ya kusa ƙarewa.

Tare da ci gaba da ci gaban masana'antar duniya, filin aikace-aikacen strontium shima ya faɗaɗa.Daga karni na 19 zuwa farkon wannan karni, mutane sun yi amfani da strontium hydroxide don yin sukari da kuma tsarkake ruwan gwoza;A lokacin yakin duniya na biyu, an yi amfani da mahadi na strontium sosai wajen samar da wasan wuta da bama-bamai;A cikin 1920s da 1930s, an yi amfani da strontium carbonate azaman desulfurizer don yin ƙarfe don cire sulfur, phosphorus da sauran abubuwa masu cutarwa;A cikin 1950s, an yi amfani da strontium carbonate don tsaftace zinc a cikin samar da zinc electrolytic, tare da tsabta na 99.99%;A ƙarshen 1960s, strontium carbonate an yi amfani da shi sosai azaman kayan maganadisu;Strontium titanate ana amfani dashi azaman ƙwaƙwalwar kwamfuta, kuma ana amfani da strontium chloride azaman man roka;A cikin 1968, an yi amfani da strontium carbonate zuwa gilashin allon TV mai launi saboda an gano cewa ana amfani da shi don kyakkyawan aikin garkuwar X-ray.Yanzu buƙatun yana girma cikin sauri kuma ya zama ɗaya daga cikin manyan wuraren aikace-aikacen strontium;Strontium kuma yana haɓaka kewayon aikace-aikacen sa a wasu fagage.Tun daga wannan lokacin, strontium carbonate da sauran strontium mahadi (strontium salts) a matsayin mahimman kayan albarkatun gishiri na inorganic sun sami kulawa da kulawa sosai.
A matsayin mahimmancin albarkatun masana'antu, strontium carbonateana amfani da shi sosai wajen samar da bututun hoto, masu saka idanu, masu saka idanu na masana'antu, abubuwan lantarki, da sauransu.A lokaci guda, strontium carbonate kuma shine babban kayan da ake buƙata don shirye-shiryen strontium na ƙarfe da kuma strontium salts daban-daban.Bugu da kari, strontium carbonate kuma za a iya amfani da a samar da wasan wuta, kyalli gilashin, sigina bama-bamai, takarda yin, magani, analytical reagents, sugar refining, tutiya karfe electrolyte tacewa, strontium gishiri pigment masana'antu, da dai sauransu Tare da karuwar bukatar high. -tsarki strontium carbonate, kamar manyan allon kalar TV sets, nunin launi don kwamfutoci da manyan kayan aikin maganadisu, da sauransu. Samar da samfuran strontium a Japan, Amurka, Jamus da sauran ƙasashe masu ci gaba ya ragu kowace shekara saboda haka. zuwa raguwar jijiyoyin ma'adinai, hauhawar farashin makamashi da gurbatar muhalli.Ya zuwa yanzu, ana iya ganin kasuwar aikace-aikacen strontium carbonate.
Yanzu, za mu gabatar da takamaiman aikace-aikacen strontium carbonate:
Da farko, an raba strontium carbonate zuwa granular da ƙayyadaddun foda.An fi amfani da granular a gilashin TV a kasar Sin, kuma ana amfani da foda a cikin samar da kayan aikin strontium ferrite magnetic, smelting nonferrous karfe, jan pyrotechnic heartliver da kuma samar da high-tsarki strontium carbonate don ci-gaba na lantarki kayayyakin kamar PTC. yafi amfani a samar da TV gilashin da nuni gilashin, strontium ferrite, Magnetic kayan da nonferrous karfe desulfurization, da kuma amfani da samar da wasan wuta, mai kyalli gilashin, Siginar bam, takarda yin, magani, Analytical reagent da albarkatun kasa don masana'antu sauran. strontium gishiri.
Babban amfani da strontium carbonate a cikin aikace-aikacen lantarki sune:
Ana amfani da shi don kera mai karɓar talabijin mai launi (CTV) don ɗaukar electrons da cathode ke samarwa
1.Manufacture na strontium ferrite don dindindin maganadisu da ake amfani da su a cikin lasifika da maganadiso kofa
2.Production na cathode ray tube don launi TV
3. Har ila yau ana amfani da shi don electromagnets da strontium ferrite
4.Za a iya sanyawa cikin ƙananan motoci, masu rarraba maganadisu da lasifika
5.Shan X-rays
6.It da ake amfani da masana'antu wasu superconductors, kamar BSCCO, kuma ga electroluminescent kayan.Da farko, ana ƙididdige shi cikin SrO, sannan a haɗe shi da sulfur don yin SrS: x, inda x yawanci europium ne.
A cikin masana'antar yumbu, strontium carbonate yana taka rawa kamar haka:
1.An yi amfani da shi sosai azaman sashi na glaze.
2. Yana aiki azaman juyi
3. Canza launin wasu karfe oxides.
I mana,Mafi yawan amfani da strontium carbonate shine azaman mai launi mai arha a cikin wasan wuta.
A takaice, strontium carbonate ana amfani da ko'ina, yafi a samar da TV gilashin da nuni gilashin, strontium ferrite, Magnetic kayan da nonferrous karfe desulfurization da sauran masana'antu, ko a samar da wasan wuta, kyalli gilashin, sigina bama-bamai, takarda yin takarda, magani. , Analytical reagents da albarkatun kasa don kera sauran strontium salts.
Bisa kididdigar da aka yi, kasar Sin tana da kamfanoni sama da 20 da ke aikin samar da sinadarin strontium carbonate, wadanda adadinsu ya kai ton 289000 a duk shekara, wanda ya zama kasa mafi girma a duniya wajen samar da makamashin carbonated, da kuma fitar da kayayyaki zuwa sassan duniya, suna samun kyakkyawan suna. a kasuwannin duniya.Bisa kididdigar kididdigar kwastam, yawan kayayyakin da kasar Sin ta fitar a shekarun baya-bayan nan ya kai ton 78700 a shekarar 2003, ton 98000 a shekarar 2004 da tan 33000 a shekarar 2005, wanda ya kai kashi 34.25%, da kashi 36.8% na kasar, da kashi 39.5%, da kashi 39.5 cikin dari. 54.7% da 57.8% na cinikin kasuwannin duniya.Celestite, babban albarkatun kasa na strontium carbonate, ƙaramin ma'adinai ne a duniya kuma shine albarkatun ma'adinai da ba a sake sabuntawa ba.
Kamar yadda muka sani, strontium shine muhimmin ma'adinai mai mahimmanci tare da amfani mai yawa.Ɗaya daga cikin amfani da shi shine sarrafa gishiri na strontium, irin su strontium carbonate, strontium titanate, nitrate, strontium oxide, strontium chloride, strontium chromate, strontium ferrite, da dai sauransu. Daga cikin su, mafi girma shine samar da strontium carbonate.
A kasar Sin, strontium carbonate namu yana da wani fa'ida ta fuskar samarwa da samarwa.Ana iya cewa kasuwa na kasuwa na strontium carbonate yana da kyau.

1.Hanyar lalata hanyar.
An murkushe Celestite kuma an amsa tare da maganin soda ash na 2h a zafin jiki na 100 ℃.Matsakaicin farko na sodium carbonate shine 20%, adadin sodium carbonate da aka ƙara shine 110% na adadin ka'idar, kuma girman barbashi na foda shine raga 80.A karkashin wannan yanayin, adadin bazuwar zai iya kaiwa fiye da 97%.Bayan tacewa, ƙaddamar da sodium sulfate a cikin tacewa zai iya kaiwa 24%.Beat da danyen strontium carbonate da ruwa, ƙara hydrochloric acid kayan yaji slurry zuwa pH3, da kuma bayan 2 ~ 3h a 90 ~ 100 ℃, ƙara barium remover don cire barium, sa'an nan daidaita slurry da ammonia zuwa pH6.8 ~ 7.2 don cire impurities. .Bayan tacewa, filtrate yana zubar da strontium carbonate tare da ammonium bicarbonate ko ammonium carbonate bayani, sannan tace don cire maganin ammonium chloride.Bayan bushewa da kek ɗin tacewa, an shirya samfurin strontium carbonate.
SrSO4+Na2CO3→SrCO3+Na2SO4
SrCO3+2HCl→SrCl2+CO2↑+H2O
SrCl2+NH4HCO3→SrCO3+NH4Cl+HCl
2.Hanyar rage kwal.
Celestite da pulverized kwal suna crushed su wuce 20 meshes a matsayin albarkatun kasa, da rabo daga tama zuwa ci ne 1: 0.6 ~ 1: 0.7, rage da kuma gasashe a zazzabi na 1100 ~ 1200 ℃, bayan 0.5 ~ 1.0h, da calcined abu. ana leshi sau biyu, a wanke sau daya, ana leka a 90 ℃, a jika na tsawon sa'o'i 3 kowane lokaci, kuma jimlar leaching na iya kaiwa sama da 82%.Ana tace maganin leaching, ragowar tacewa yana zubar da hydrochloric acid, kuma strontium yana kara dawowa, kuma ana kara tacewa tare da maganin mirabilite don cire barium, Sannan ƙara ammonium bicarbonate ko sodium carbonate bayani don amsawa don haifar da hazo strontium carbonate (ko kai tsaye carbonize da carbon dioxide), sa'an nan kuma raba, bushe, da niƙa don samar da strontium carbonate kayayyakin.
SrSO4+2C→SrS+2CO2
2SrS+2H2O → Sr (OH) 2+Sr (HS) 2
Sr(OH)2+Sr(HS)2+2NH4HCO3→2Sr(CO3+2NH4HS+2H2O
3.Thermal bayani na strontium siderite.
Ana niƙasa strontium siderite da coke a haɗa su cikin cakuda daidai gwargwadon rabon tama zuwa coke = 10: 1 (rabin nauyi).Bayan gasa a 1150 ~ 1250 ℃, carbonates suna bazuwa don samar da clinker dauke da strontium oxide da sauran karfe oxides.Clinker yana leaching ta matakai uku, kuma mafi kyawun zafin jiki shine 95 ℃.Mataki na biyu da na uku za a iya leached a.Yi aiki a 70-80 ℃.Maganin leaching yana sa ƙaddamarwar strontium hydroxide ya zama 1mol/L, wanda ke da amfani ga rarrabuwar ƙazanta Ca2+ da Mg2+.Ƙara ammonium bicarbonate zuwa tacewa don carbonization don samun strontium carbonate.Bayan rabuwa, bushewa da murkushewa, ana samun strontium carbonate da aka gama.
SrCO3→SrO+C02↑
SrO+H2O→Sr(OH)2
Sr(OH)2+NH4HCO3→SrCO3↓+NH3·H2O+H2O
4. Cikakken amfani.
Daga cikin brine na karkashin kasa mai dauke da bromine da strontium, strontium da ke dauke da barasa uwa bayan cirewar bromine za a cire shi da lemun tsami, a kwashe, a sanyaya a sanyaya, sannan a cire sodium chloride, sannan a cire calcium da soda caustic, sannan a saka ammonium bicarbonate don canzawa. strontium hydroxide zuwa cikin strontium carbonate hazo, sa'an nan kuma kurkura da bushe don samar da strontium carbonate kayayyakin.
SrC12+2NaOH→Sr(OH)2+2NaCl
Sr(OH)2+NH4HCO3→SrCO3+NH3·H2O+H2O

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