Indlela ye-Agglomeration Isithando somlilo sikagesi esinomlomo ovulekile esinganyakaziswa kumzila wesitimela futhi ingxenye engaphezulu yesithando somlilo ingahlukaniswa isetshenziswa, futhi ikhabhoni isetshenziswa njenge-ejenti yokunciphisa. I-tungsten ore enhle, i-asphalt coke (noma i-petroleum coke) kanye ne-slagging ejenti (i-bauxite) eyakhiwe ngengxube yezindleko ezingezwe esithandweni ngamaqoqo ngokulandelana, insimbi ecwengiwe esithandweni ngokuvamile i-viscous, enobukhulu obuphezulu, ingxenye engezansi yokuqina kancane kancane. Ukuqoqwa kwesithando somlilo ngemuva kokumisa isithando somlilo, khipha umzimba wesithando somlilo, susa ingxenye engenhla yesithando somlilo ukuze i-condensation yesigaxa. Bese ukhipha ama-agglomerate okuchotshozwa nokuqeda; khetha imiphetho, nge-slag nezingxenye ezingafanelekile zibuyele esithandweni somlilo ukuze zincibilike. Umkhiqizo uqukethe cishe u-80% we-tungsten futhi ungabi ngaphezu kuka-1% wekhabhoni.
Indlela yokukhipha insimbi ifanele ukuncibilikisa i-ferro-tungsten equkethe u-70% we-tungsten enephuzu elincibilikayo eliphansi. I-silicon nekhabhoni isetshenziswa njenge-reductants; iqhutshwa ngezigaba ezintathu: ukunciphisa (okubizwa nangokuthi ukuchithwa kwe-slag), ukucwenga kanye nokukhipha insimbi. Isithando somlilo sesiteji sokunciphisa siqukethe isithando somlilo sokuthatha insimbi eshiywe ngemuva kwe-slag equkethe i-WO3 enkulu kuno-10%, bese yengezwa ngokulandelana kwe-tungsten concentrate charge, bese yengezwa ku-silicon 75% ferrosilicon kanye nenani elincane le-asphalt coke (noma i-petroleum coke) yokunciphisa ukuncibilika, ukuba i-slag equkethe i-WO3 yehle iye ku-0.3% ngaphansi kwe-slag. Kamuva idluliselwe esigabeni sokucwenga, kulesi sikhathi, kwenezela i-tungsten concentrate, ingxube ye-asphalt coke ngamaqoqo, eqhutshwa ngamandla kagesi aphezulu, ekushiseni okuphezulu ukususa i-silicon, i-manganese nokunye ukungcola. Isampula test ukunquma ukwakheka abaqeqeshiwe, waqala ukuthatha insimbi. Ngesikhathi sokukhishwa kwensimbi, i-tungsten concentrate kanye ne-asphalt coke zisangezwa ngokufanele ngokuvumelana nezimo zesithando somlilo. Ukusetshenziswa kwamandla okuncibilika okungaba ngu-3,000 kW-hr/ton, izinga lokutholwa kwe-tungsten cishe elingu-99%.
Indlela yokushisa ye-aluminium ukuze kusetshenziswe imfucuza i-tungsten carbide powder tungsten kanye nokuhlukaniswa kwe-cobalt ye-cobalt extraction ye-tungsten carbide evuselelwe kabusha, ithuthukise indlela ye-aluminium eshisayo yenqubo ye-ferro-tungsten, nge-tungsten carbide evuselelwe kabusha ne-iron njengezisetshenziswa zokusetshenziswa, i-aluminium njenge-reductant, ukusetshenziswa kwe-tungsten carbide ekushiseni kwayo kwekhabhoni ne-aluminium yokushisa, ukuze impahla eluhlaza ku-tungsten nensimbi ibe yi-ferro-tungsten, ingasindisa ugesi omningi, futhi inciphise izindleko. Ngesikhathi esifanayo, ngenxa yokuthi ukungcola kwe-tungsten carbide eluhlaza kuphansi kakhulu kunaleyo ekugxilwe kwe-tungsten, ikhwalithi yomkhiqizo iphakeme kunaleyo ye-ferrotungsten esebenzisa i-tungsten concentrate njengempahla eluhlaza. Izinga lokutholwa kwe-tungsten nalo liphakeme kunalelo lenqubo esebenzisa i-tungsten concentrate njengempahla eluhlaza.
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