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
Petroleum Jelly: Vacuum Residue Filtered Warm Through Bone Black
Petroleum jelly (petrolatum, vaseline) is what is left of crude oil after the lighter parts are distilled off, cleaned by filtering it warm through bone black. The 1907 US Dispensatory and Thorpe (1913) describe the process: the first colourless runnings become petroleum jelly, and the later, darker filtrate is cylinder oil.
The picture: white petrolatum (Wikimedia Commons).
Ilọsíwájú
Several days
Ìlànà
1
1
Distil off the light cuts
Distil off the light cuts
Distil crude oil in an atmospheric column and draw off the lighter cuts. Keep the residue from the bottom.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Epo rọ̀bì1 tÀwọn irinṣẹ́ tí a nílò:
Òpó ìpọn ní ìfúnpá afẹ́fẹ́2
2
Reduce under vacuum
Reduce under vacuum
Distil the residue further under vacuum, heated by coils carrying superheated steam, not by direct fire. Done right, the reduced oil reaches a fire-test of 337.7 °C (640 °F) without any burnt smell.
Àwọn irinṣẹ́ tí a nílò:
Òpó ìpọn òfo-afẹ́fẹ́
Ẹ̀rọ ìfàfẹ́fẹ́jáde3
3
Filter warm through bone black
Filter warm through bone black
Melt the reduced oil and run it onto steam-jacketed filters of fine, granular, well-dried bone black, kept at 43.3–54.4 °C (110–130 °F).
Àwọn irinṣẹ́ tí a nílò:
Àlẹ̀ tó ní ìbòrí ìnáwọ́
Dúdú egungun
Thermocouple pẹ̀lú ìkà4
4
Keep the clear runnings
Keep the clear runnings
The first filtrate is colourless; it then turns straw or lemon, and finally red. Keep the clear runnings for petroleum jelly. The red filtrate is cylinder oil, a lubricant.
Àwọn irinṣẹ́ tí a nílò:
Àlẹ̀ tó ní ìbòrí ìnáwọ́
Ìgò irin5
5
Set the melting point
Set the melting point
If the jelly is too soft, stir pure block paraffin into the warm oil until it has the right melting point. It dissolves completely. Pour it into tins to set.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìdí parafíìnì1 as requiredÀwọn irinṣẹ́ tí a nílò:
Thermocouple pẹ̀lú ìkàÌgò irinÀwọn irinṣẹ́ tó nílò
7- 1 vendor sell this, none ship to you yetÀyè
- Àyè
- Àyè
Ìtọ́nisọ́nà yìí ń ṣe
Blueprint tó jọra
Àwọn blueprint wọ̀nyí pín ìmọ̀ — ọ̀nà, ohun-èlò tàbí ìlànà
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.