Thiourea, ine molecular formula ye (NH2) 2CS, ichena orthorhombic kana acicular inopenya crystal.Nzira dzemaindasitiri dzekugadzira thiourea dzinosanganisira nzira yeamine thiocyanate, lime nitrogen nzira, urea nzira, etc. Munzira ye lime nitrogen, lime nitrogen, hydrogen sulfide gasi nemvura zvinoshandiswa kuita hydrolysis, kuwedzera reaction, kusefa, crystallization uye kuomesa mune synthesis. kettle kuti uwane chigadzirwa chakapedzwa.Iyi nzira ine zvakanakira nzira pfupi yekuyerera, hapana kusvibiswa, mutengo wakaderera uye yakanaka chigadzirwa mhando.Parizvino, mafekitari mazhinji anotora nzira ye lime nitrogen kugadzirira thiourea.
Kubva pamusika mamiriro, China ndiyo yakakura kwazvo thiourea inogadzira pasirese.Pamusoro pekuzadzisa zvinodiwa zvemumba, zvigadzirwa zvaro zvinotumirwawo kuJapan, Europe, United States, Southeast Asia nedzimwe nyika nematunhu.Panyaya yekushandiswa kwemvura yakadzika, thiourea inoshandiswa zvakanyanya semidziyo yekugadzira mishonga yekuuraya zvipembenene, mishonga yemishonga, makemikari emagetsi, makemikari anowedzera, pamwe neyegoridhe flotation agent.
Mumakore achangopfuura, kugadzirwa kwetiourea muChina kwakagadziridzwa kune imwe nhanho, ine simba re80,000 matani / gore uye vanopfuura makumi maviri vanogadzira, avo vanopfuura 90% ndivo vanogadzira munyu we barium.
MuJapan, kune makambani matatu anogadzira thiourea.Mumakore achangopfuura, nekuda kwekuderera kwesimbi, kuwedzera kwemitengo yemagetsi, kusvibiswa kwezvakatipoteredza nezvimwe zvikonzero, kubuda kwebarium carbonate kwakaderera gore negore, zvichiita kuti kuderedzwa kwekugadzirwa kwehydrogen sulfide, iyo inoderedza kugadzirwa kwe. thiourea.Pasinei nekukura kwekukurumidza kwekudiwa kwemusika, simba rekugadzira rakaderedzwa zvakanyanya.Iyo inobuda ingangoita 3000 matani / gore, nepo kudiwa kwemusika kuri kutenderera 6000 matani / gore, uye gap rinotengeswa kubva kuChina.Kune makambani maviri muEurope, SKW Kambani kuGermany neSNP Kambani kuFrance, ine huwandu hwematani zviuru gumi pagore.Nekuenderera mberi kwekuvandudza kwethiourea mumishonga yezvipembenene uye kumwe kushandiswa kutsva, The Netherlands neBelgium dzave vatengi vakuru vethiourea.Kushandiswa kwemusika wepagore mumusika weEurope kunosvika zviuru makumi matatu zvematani, ayo makumi maviri ezviuru zvematani anoda kutengwa kubva kuChina.ROBECO kambani muUnited States ine gore negore goho re thiourea rinosvika zviuru gumi zvematani / gore, asi nekuda kwekuwedzera kwakasimba kuchengetedza kwezvakatipoteredza, kubuda kwethiourea kunodzikira gore negore, izvo zviri kure nekuzadzisa kudiwa kwemusika.Inoda kuunza kunze kwenyika anopfuura zviuru zvishanu zvematani ethiourea kubva kuChina gore rega rega, inonyanya kushandiswa mumishonga yekuuraya zvipembenene, mishonga nemimwe minda.
Nguva yekutumira: Zvita-06-2021