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Taitara: Te tukanga uaua o te whakamahine koura me te whakarewanga ingota i roto i te umanga

I roto i te ao o ngā konganuku utu nui, he tūranga motuhake tō te koura. Nā tōna ataahua me tōna uara kua waiho hei taonga e rapuhia ana mō ngā rautau, ā, he mea nui te mahi a te umanga whakahinuhinu koura ki te whakarite kia tutuki i te koura e whakamahia ana e tātou i roto i ngā whakapaipai, i ngā hikohiko me ngā haumitanga ngā paerewa teitei o te parakore me te kounga. Ko tētahi āhuatanga nui o te umanga ko te tukanga whakarewa koura, e huri ana i te koura kua whakahinuhinuhia hei pae koura rongonui e tohu ana i te taonga me te whai rawa. I roto i tēnei tuhinga, ka rukuhia e tātou te tukanga uaua o te whakahinuhinu me te whakarewa koura, e whakaatu ana i ngā mahi taipitopito e whai wāhi ana me te hiranga o ēnei tukanga i roto i te umanga koura.

Te whakapai koura: mai i te konganuku ki te koura parakore

Ko te haerenga o te koura mai i tōna āhua mata hei konganuku ki te konganuku kanapa e hiahiatia ana e tātou ka tīmata i te tukanga whakamahine koura. He maha ngā wāhanga o tēnei tukanga uaua, ko ia wāhanga e aro ana ki te tango i ngā poke me te whakatutuki i te taumata parakore e hiahiatia ana. Ko te taahiraa tuatahi i roto i te whakamahine koura ko te tango i te konganuku koura mai i te whenua, kātahi ka kuruhia, ka hurihia kia paura pai. Kātahi ka haere tēnei paura mā roto i tētahi raupapa o ngā tukanga matū me ngā tukanga ā-tinana e wehewehe ana i te koura mai i ētahi atu kohuke me ngā poke.

Ko tētahi o ngā tikanga tino noa mō te whakamahine koura ko te whakamahine i te cyanide leaching, arā, ka pania he wairewa cyanide ki te koura hei whakarewa i te koura. Kātahi ka tukatukahia te wairewa ka puta hei whakaora i te koura, ka purea anō mā roto i ngā tukanga pēnei i te whakarewa me te electrolysis. Ko ēnei tukanga e whakamahi ana i ngā pāmahana teitei me ngā tauhohenga matū hei tango i ngā paru e toe ana, ka hua ake he koura parakore e tutuki ana i ngā paerewa parakore o te umanga.

Te Hiranga o te Parakore i roto i te Whakamaene Koura

He mea nui te parakore i roto i te tukanga whakangao koura, nā te mea ka pā tika ki te uara me te kounga o te hua whakamutunga. Ka inehia te parakore o te koura i roto i ngā karati, ko te koura 24-karati te āhua parakore rawa atu, ā, kei roto ko te 99.9% koura. Ko te iti iho o te uara karati, ko te iti iho o te koura. Hei tauira, ko te koura 18 karati kei roto ko te 75% koura me te 25% o ētahi atu konganuku. He mea nui te whakatutuki i te parakore teitei hei whakatutuki i ngā whakaritenga pakari o ngā ahumahi e whakawhirinaki ana ki te koura, pērā i te hanga whakapaipai me te hanga hikohiko.

Haunga te tutuki i ngā paerewa parakore, he mea nui anō hoki te whakamahine koura ki te whakarite i ngā mahi matatika me te pumau i roto i te umanga. Ko ngā mahi whakamahine koura kawenga e uru ana ki te whakamahi i ngā tukanga e pai ana ki te taiao me te whakatinanatanga o ngā mahi mahi tika e aro ana ki ngā take e pā ana ki ngā pānga taiao me te pāpori o te keri koura me ngā mahi whakamahine.

Te Maka Ingota Koura: Tahurihia te koura parakore hei poro koura

Kia oti te whakapai i te koura ki te parakore e hiahiatia ana, ka taea te huri hei poro koura rongonui e mōhiotia ana ko ngā poro koura. Ko te tukanga whakarewa poro koura ko te riringi i te koura rewa ki roto i ngā pokepoke hei hanga poro koura totoka, he momo hokohoko me te rokiroki watea, he paerewa hoki. Me whai tika me te tohungatanga tēnei tukanga kia tutuki ai ngā whakaritenga e hiahiatia ana mō te taumaha, te rahi me te parakore.

Ko te taahiraa tuatahi i roto i te whakarewatanga o te koura ko te whakarite i te pokepokea ai, he mea hanga i te nuinga o te wā mai i tētahi rauemi pakari pērā i te karāpeti, i te maitai rānei. Ka hangaia ngā pokepokea ai hei whakaputa i ngā pokepokea ai he taumaha me he rahi motuhake, me ngā tohu e tohu ana i te parakore me te takenga mai o te koura. Kia oti te whakarite i te pokepokea ai, ka rewahia te koura kua parakore i ngā pāmahana teitei i roto i te para, mā te whakamahi i te oumu whakapūmau, i ētahi atu taputapu motuhake rānei.

Kātahi ka ringihia marietia te koura rewa ki roto i te pokepokea ai, he tukanga e hiahia ana ki te pūkenga me te aro ki ngā taipitopito kia kore ai e puta he hapa, he hapa rānei i roto i te koura whakamutunga. Kia mārō te koura, ka whakatuwheratia te pokepokea ai kia kitea ai te koura hou kua hangaia, kātahi ka tirohia, ka tohua ki tētahi tohu tautuhi hei whakaatu i tōna parakore me tōna pono. Kei roto i ēnei tohu te taumaha, te parakore me te tohu o te kamupene whakahinuhinu, e whakarato ana i ngā mōhiohio nui ki ngā kaihoko me ngā kaihokohoko i te mākete koura.

Te hiranga o te whakarewatanga o te koura i roto i te umanga

He hononga nui te whakarewatanga o te koura i waenganui i te tukanga whakamahine koura me te mākete koura, e whakarato ana i tētahi āhua paerewa me te tautuhi mō te hokohoko me te rokiroki koura. He whānuitia te whakamahinga o ēnei poro koura mō ngā kaupapa haumitanga me te hanga whakapaipai me ētahi atu hua koura. Mā te tukanga whakarewatanga tino tika ka tutuki i te koura ngā paerewa parakore me te kounga e hiahiatia ana, ka whakatōkia te whakapono ki ngā kaihoko me ngā kaipupuri moni e whakawhirinaki ana ki te pono o te koura e hokona ana e rātou.

Hei tāpiritanga, he mea nui te mahi a te koura parakore i roto i te mākete koura o te ao hei momo moni whānui, hei putunga uara hoki. Nā te taumaha paerewa me te parakore o te koura, he mea pai mō te hokohoko me te haumi o te ao, e āwhina ana i ngā whakawhitiwhitinga me te noho hei rawa pono i ngā wā o te koretake o te ōhanga. Nō reira, ka āwhina te tukanga whakarewa ingot ki te whakanui ake i te moni me te pumau o te mākete koura, e āhei ai te whakawhitiwhiti koura puta noa i te ao.

Te heke mai o te whakamahine koura me te whakarewanga ingota

I te mea kei te piki haere tonu te hiahia mō te koura, nā ngā āhuatanga pēnei i te pumau ohaoha, te auahatanga hangarau me te hiranga ahurea, ka nui haere te mahi a te umanga whakamahine koura ki te whakatutuki i tēnei hiahia. E tūmanakohia ana mā ngā whanaketanga o te hangarau whakamahine me ngā mahi tauwhiro ka whakapai ake i te whai huatanga me te pānga ki te taiao o ngā mahi whakamahine koura, kia tutuki ai i te umanga ngā paerewa teitei o te whanonga matatika me te kawenga.

Waihoki, ko te tukanga whakarewatanga o ngā poro koura, tera pea ka haere tonu te auaha me te whakapai ake, me te arotahi ki te tika, te aunoatanga, me te whakaritenga kia tutuki ai ngā hiahia hurihuri o te mākete. Mā te whakamahi i ngā tikanga me ngā rauemi whakarewa matatau ka taea te whakapai ake i te kounga me te ōritetanga o ngā poro koura, i te mea ka taea e te hangarau matihiko me ngā otinga poraka te huri i te tiwhikete me te whai i ngā poro koura, ka nui ake te māramatanga ki ngā kaihoko me ngā kaipupuri moni. me te haumarutanga.

Hei whakamutunga, ko te tukanga whakapara me te whakarewa koura he wāhanga nui o te umanga koura, ā, e whakatau ana i te kounga, te uara me te hokohoko o tēnei konganuku utu nui. Mai i te tango tupato i ngā poke i te wā e whakapara ana i te koura ki te whakarewa tika i ngā konganuku koura, e whakaata ana ēnei tukanga i te mahi toi me te tohungatanga o te umanga koura. I te haere tonu o te whanaketanga me te urutau o te umanga ki ngā hiahia me ngā paerewa e huri haere ana, ko te toi me te pūtaiao o te whakapara me te whakarewa koura he mea nui tonu kia mau tonu te ataahua me te uara o te koura i roto i te ao hou.