IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Ferroboron: Colemanite Reduced by Ferrosilicon above 2000 °C in an Arc Furnace (Hansen, GE, US 982,135, 1911)
Ferroboron should carry little carbon, so Hansen reduced the boron mineral colemanite with silicon instead of coke. The silicon takes the oxygen, joins the lime as a calcium silicate slag, and the boron goes into the iron of the ferrosilicon.
Result: ferroboron, low in carbon, under a clean slag.
Source: Hansen, US 982,135 (1911). Not given: weights, boron content. Picture drawn by Youblob.
Ilọsíwájú
1 day
Ìlànà
1
1
Dehydrate the colemanite at 450 °C
Dehydrate the colemanite at 450 °C
Heat colemanite to about 450 °C in a suitable container to drive off its water.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Kolẹmanáìtì1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ààrò muffle2
2
Powder and mix with ferrosilicon
Powder and mix with ferrosilicon
Grind it and mix with powdered ferrosilicon: enough silicon to reduce all the boron and slag off the lime. The amount depends on the silicon content of the ferrosilicon.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ferrosilikọ́ọ̀nù1 as requiredÀwọn irinṣẹ́ tí a nílò:
Odó àti Ọmọ Odó3
3
Bind and press into pellets
Bind and press into pellets
Mix the powder with a binder, e.g. water glass, and press it into pellets.
Àwọn irinṣẹ́ tí a nílò:
Gíláàsì omi (omi sodium silicate)
Ẹ̀rọ títẹ òògùn4
4
Reduce above 2000 °C
Reduce above 2000 °C
Heat the pellets above 2000 °C, e.g. in a Moissan arc furnace (a ferrosilicon-type resistance furnace also works). Silicon reduces the boron; the calcium silicate slag separates cleanly from the ferroboron.
Àwọn irinṣẹ́ tí a nílò:
Ààrò arc iná mọ̀nàmọ́náÀwọn ohun-èlò
2- 1 as requiredÀyè
- 1 as requiredÀyè
Àwọn irinṣẹ́ tó nílò
5- Àyè
Ìtọ́nisọ́nà yìí ń ṣe
CC0 Àgbègbè Gbogbogbò
Blueprint yìí ti jáde lábẹ́ CC0. O lè ṣe àdàkọ, yí padà, pín, àti lò láìsí ìyọ̀ǹda.
Ṣàtìlẹ́yìn Olùṣẹ́dá nípa rírà àwọn ọjà nipasẹ̀ Blueprint wọn Ẹ̀san Olùṣẹ́dá tí àwọn Olùtajà gbé kalẹ̀, tàbí ṣẹ̀dá àtúnṣe tuntun ti Blueprint yìí kí o sì fi sínú Blueprint rẹ gẹ́gẹ́ bí ìsopọ̀ láti pín owó-wíwọlé.