SILICON SLAG rau kev tsim khoom

Cov ntsiab lus: 30%, 40%, 45%, 50%, 65% Particle loj: 0-3mm, 0-12mm, 10-100mm

Xa kev nug

Hauj lwm lawm

Khoom Description

Embodiment 2: ib hom kev soj ntsuam kom muaj nuj nqis ntawm cov ntsiab lus silicon hauv kev lag luam silicon slag, pob zeb ua cov kauj ruam yog raws li hauv qab no:

(1) Kev lag luam silicon slag tawg thiab hauv av rau hauv qhov nruab nrab qhov loj me ntawm 200 mesh silicon slag hmoov, thiab qhov hnyav ntawm silicon slag hmoov yog 10g;

(2) Cov hmoov silicon slag raug rau hydrochloric acid leaching rau 2 teev kom yaj silicate kom tau cov kua qaub leaching kua uas muaj silicic acid thiab cov khoom uas muaj cov khoom siv silicon thiab silicon carbide. Qhuav nyob rau hauv lub tshuab nqus tsev, hnyav cov khoom particle loj m2 uas muaj cov khoom siv silicon thiab silicon carbide yuav tsum yog 3.76g; nyob rau hauv cov khoom-kua piv g: ml ntawm silicon slag hmoov thiab hydrochloric acid yog 1: 2;

(3) Maj mam ntxiv nitric acid rau cov khoom uas muaj cov khoom siv silicon thiab silicon carbide, thiab tom qab ntawd ntxiv hydrofluoric acid poob los ntawm kev poob los ua kom lub elemental silicon react nrog cov kua qaub sib xyaw ntawm nitric acid thiab hydrofluoric acid rau 1.5h, yaj hauv nitric acid. thiab hydrofluoric acid Cov kua qaub dipping uas muaj silicofluoric acid thiab silicon carbide cov khoom sib xyaw tau txais hauv cov kua qaub sib xyaw, cov khoom silicon carbide cov khoom tau nqus-qhuav ntawm qhov kub ntawm 60 degree, thiab qhov loj m3 ntawm silicon carbide cov khoom tau hnyav. yog 2,52g. Cov nitric acid thiab hydrofluoric acid Qhov ntim piv yog 1: 1, thiab cov khoom-rau-kua piv g: ml ntawm cov khoom uas muaj cov khoom siv silicon thiab silicon carbide rau nitric acid yog 1: 24, thiab cov khoom sib npaug-rau-kua piv. g: ml ntawm cov khoom uas muaj cov khoom siv silicon thiab silicon carbide rau hydrofluoric acid: ml yog 1:24;

(4) xam raws li qhov zoo ntawm m4 ntawm silicate thiab qhov zoo m5 ntawm elemental silicon hauv silicon slag hmoov raws li qhov hnyav sib txawv,

Qhov zoo m4=m1-m2=6.24g ntawm silicate, qhov zoo m5=m2-m3=1.24g ntawm elemental silicon Tom qab ntawd xam cov ntsiab lus loj ntawm silicate, elemental silicon thiab silicon carbide hauv kev lag luam silicon slag feem;

Embodiment 3: ib hom kev soj ntsuam kom muaj nuj nqis ntawm cov ntsiab lus silicon hauv kev lag luam silicon slag, pob zeb ua cov kauj ruam yog raws li nram no:

(1) Kev lag luam silicon slag tawg thiab hauv av rau hauv qhov nruab nrab qhov loj me ntawm 200 mesh silicon slag hmoov, thiab qhov hnyav ntawm silicon slag hmoov yog 10g;

(2) Cov hmoov silicon slag raug rau hydrochloric acid leaching rau 3 teev kom yaj silicate kom tau cov kua qaub leaching kua uas muaj silicic acid thiab cov khoom uas muaj cov khoom siv silicon thiab silicon carbide. Qhuav nyob rau hauv lub tshuab nqus tsev, hnyav cov khoom particle loj m2 uas muaj cov khoom siv silicon thiab silicon carbide yuav tsum yog 2.78g; nyob rau hauv cov khoom-kua piv g: ml ntawm silicon slag hmoov thiab hydrochloric acid yog 1: 2;

(3) Nitric acid maj mam ntxiv rau cov khoom uas muaj cov khoom siv silicon thiab silicon carbide, thiab tom qab ntawd hydrofluoric acid ntxiv los ntawm kev poob los ua kom cov elemental silicon react nrog cov kua qaub sib xyaw ntawm nitric acid thiab hydrofluoric acid rau 3 teev, thiab yaj. nyob rau hauv nitric acid thiab hydrofluoric acid. Cov kua qaub dipping muaj cov silicofluoric acid thiab silicon carbide cov khoom sib xyaw tau txais hauv cov kua qaub sib xyaw, thiab cov khoom silicon carbide cov khoom tau nqus-qhuav ntawm qhov kub ntawm 60 ° C., thiab qhov loj m3 ntawm silicon carbide cov khoom tau hnyav. yog '1,11 g; nyob rau hauv cov nitric acid thiab hydrofluoric acid Qhov ntim piv yog 1: 1, cov khoom-kua piv g: ml ntawm cov khoom uas muaj cov khoom siv silicon thiab silicon carbide rau nitric acid yog 1: 15, cov khoom-kua piv g: ml ntawm cov khoom. cov khoom uas muaj cov ntsiab lus silicon thiab silicon carbide rau hydrofluoric acid yog 1:15;

(4) Xam qhov zoo m4 ntawm silicate thiab qhov zoo m5 ntawm elemental silicon nyob rau hauv silicon slag hmoov feem raws li qhov hnyav sib txawv txoj kev, qhov zoo m4=m1-m2=7. 22g ntawm silicate, qhov zoo m5=m2- ntawm elemental silicon m3=1.02g

Silicon slag

Silicon metal slag

Khoom Description

Ferro silicon code	Tshuaj muaj pes tsawg leeg (%)
	Si	Mn	Cr	C	P	S
FeSi75A	74.0-80.0	Tsawg dua lossis sib npaug rau 0.4	Tsawg dua lossis sib npaug rau 0.3	Tsawg dua los yog sib npaug rau 0.1	Tsawg dua lossis sib npaug rau 0.035	Tsawg dua lossis sib npaug rau 0.02
FeSi75B	72.0-80.0	Tsawg dua lossis sib npaug rau 0.4	Tsawg dua lossis sib npaug rau 0.3	Tsawg dua los yog sib npaug rau 0.1	Tsawg dua lossis sib npaug rau 0.04	Tsawg dua lossis sib npaug rau 0.02
FeSi75C ua	70.0-80.0	Tsawg dua lossis sib npaug rau 0.5	Tsawg dua lossis sib npaug rau 0.5	Tsawg dua los yog sib npaug rau 0.2	Tsawg dua lossis sib npaug rau 0.04	Tsawg dua lossis sib npaug rau 0.02
FeSi65	65.0-72.0	Tsawg dua lossis sib npaug rau 0.6	Tsawg dua lossis sib npaug rau 0.5	Tsawg dua los yog sib npaug rau 0.2	Tsawg dua lossis sib npaug rau 0.04	Tsawg dua lossis sib npaug rau 0.02