He kupu rongonui te whakamahinga whānui o ngā para i roto i te ao keri i ngā tau tata nei, ā, kua mahia hoki ngā rangahau mō te whakamahinga whānui o ngā para koura. E mōhiotia ana kua eke te hanga o ngā para o te maina koura i tōku whenua ki te neke atu i te 1.5 piriona tana, engari ko te reiti whakamahinga whānui he iti iho i te 20%. I tēnei wā, ko te huarahi tino pai ki te whakatutuki i te whakakorenga para kore-para me te kore-kino o ngā para o te maina koura ko ngā huarahi e rua: te whakakī i raro i te whenua me te whakamahi rauemi. Ko te tukanga whakakī tuku iho o ngā maina koura ko te whakakī i ngā para matotoru ki roto i te puna, ko ngā para matotoru ka purangahia ki roto i te puna para. Nā te mea he iti te ihirangi o te koura, kia nui ake ai te kohi rauemi koura, me mahi ngā mahi huri. Nō reira, he nui ngā para matotoru, he iti ake ngā para matotoru, ā, ko ngā para matotoru anake ka whakakīia ki raro i te whenua. , kāore e taea te whakaiti i te para totoka me te whakaiti i te kaha rokiroki o ngā puna para. He nui tonu te whenua e hiahiatia ana hei pupuri i ngā puna para, ā, he kino hoki ki te taiao. Ko te whakakorenga o ngā para koura kua waiho hei take nui e aukati ana i te whanaketanga ōhanga pumau o ngā maina koura.
I te 10 o Pēpuere, 2022, i whakaputa ngātahi te Manatū Ahumahi me te Hangarau Mōhiohio, te Komihana Whakawhanake me te Whakahou ā-Motu, te Manatū Pūtaiao me te Hangarau, te Manatū Pūtea, te Manatū Rauemi Taiao, te Manatū Taiao me te Taiao, te Manatū Tauhokohoko, me te Whakahaere Taake a te Kāwanatanga i te "Mō te Tā me te Tohatoha Whakatere i te Whakatairanga i ngā Rauemi Ahumahi". E kī ana te "Pānui mō te Mahere Whakatinanatanga mō te Whakamahinga Whānui" kia heke te kaha o te whakaputanga para totoka ahumahi i roto i ngā ahumahi matua pēnei i te rino me te maitai, ngā konganuku kore-ferrous, me ngā ahumahi matū i tōku whenua i te tau 2025, ka tino pai ake te taumata whakamahinga whānui o ngā para totoka ahumahi nui, ka haere tonu te whanaketanga hauora o te ahumahi rauemi whakahou, ā, ka whakamahia whānuitia ngā rauemi ahumahi. Kua tino pai ake te whai huatanga, ā, ka eke te reiti whakamahinga whānui o ngā para totoka ahumahi nui ki te 57%. Nō reira, he mea nui te whakamahinga rauemi o ngā toenga koura.
He nui ngā whakamātautau whakapai ake a te Whare Taiwhanga Matua Sino-Tiamana mō te Hikohiko me te Tukatuka Kohuke Atamai o Huate Company ki ngā toenga koura i te rohe o Yantai. Ko ngā wāhanga kohuke matua o ngā toenga koura ko ngā kohuke gangue pērā i te quartz, te feldspar me te calcite, me te iti o te rino miihini, te rino aukume, te waikura rino, te waikura titanium, te silicate rino, te rino sulfide me ētahi atu poke. Ko te whānuitanga rahi matūriki o ngā toenga koura he 200 mata 50-70%, he ōrite te rahi matūriki, ā, he iti te paru pai kei roto. Ko te ihirangi poke matua o te Fe2O3 he 1-3%, ko te ihirangi TiO2 he 0.1-0.3%, ko te ihirangi CaO he 0.12-1.0%, ā, ko te mā o ngā toenga koura he 5-20%. He rerekētanga ētahi i roto i te hanganga o ngā toenga i hangaia e ngā momo whakapūmau. He nui te SiO2 o ētahi para, kei roto rānei he spodumene, he sericite, me ētahi atu. Ko te nuinga o ēnei he momo feldspar-quartz pegmatite, he nui te uara whakamahi anō.
Nā te Kamupene Huate i hanga te tukanga whakakotahitanga o te "wehewehenga aukume-te-taimaha", ā, i whiwhi i te mana pateni i te marama o Hepetema 2020. Ko te kaupapa o te pateni e pā ana ki "te tikanga whakamahi whānui o ngā toenga koura kei roto te koura, te rino me te feldspar. I tēnei wā, neke atu i te tekau ngā tono ahumahi nui kua mahia i Yantai, Shandong, ko te mea nui rawa atu ka taea te tukatuka i te 8,000 tana o ngā toenga koura ia rā. I roto i tēnei tukanga, ka whakamahia ngā taputapu whakapainga matatau pēnei i te mata wiri, te ngongo porowhita, te tēpu wiri, te wehenga aukume pahu, te wehenga aukume pereti aukume kaha maku, te wehenga aukume porowhita teitei porowhita poutū, me te wehenga aukume paru aukume hikohiko. I te wā e whiwhi ana i te kukū feldspar kounga teitei mai i ngā toenga, ka whakahokia mai hoki ngā hua nui pēnei i te magnetite, ngā kohuke koura, ngā rauemi mata sima, me ngā rauemi mata hanga pereki kia tutuki ai te whakamahinga whānui o ngā toenga koura me te whakatutuki i te kore tukunga i roto i te huarahi katoa.
E whakamahia ana te wehewehe aukume porowhita teitei me te wehewehe aukume whakarewa teitei i roto i te kaupapa para koura.
Wā tuku: Maehe-11-2022