Purifying Oils Page: 7 of 8
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1,277,329
stantially changed and continuing the
warming till a substantial proportion of
such unsaturated hydrocarbons are trans-
formed into saturated hydrocarbons.
5 7. The process of stabilizing, decolorizing
and deodorizing, petroleum oils containing
unsaturated oils, which comprises warming
such an oil with anhydrous. aluminum
chlorid at a temperature sufficient to trans-
10 form such unsaturated oils into saturated
oils while insufficient to cause a substantial
lowering of the original flash point of such
petroleum oil.
8. In the purification of high boiling min-
15 eral lubricating oils the process which com-
prises warming such an oil with dry, alu--.
minum chlorid at a temperature insufficient
to volatilize any substantial proportion of
the oil under treatment.
20 9. In the purification of high boiling min-
eral lubricating oils, the process which com-
prises heating such oil with dry aluminum
chlorid to a temperature around 1500 F.
10. In the purification of high boiling
25 mineral, lubricating oils, the process which
comprises heating such oil with dry alu-
minum chlorid to a temperature around
1500 F., allowing the oil to cool and separat-
ing the oil from the chlorid sludge.
30 11. In the purification of high boiling
mineral lubricating oils, the process which
comprises heating such oils with dry alu-
minum chlorid to a temperature around
1500 F., allowing the oil to cool, separating
35 the oil from the chlorid sludge and heating
such sludge with a fresh portion of oil.
12. In the purification of high boiling
mineral lubricating oils, the process which
comprises heating such oil with dry alu-
40 minum chlorid to a temperature around
1500 F., allowing the oil to cool, separating
. the oil from the chlorid sludge and heating
such sludge with a fresh portion of oil, these
operations being repeated until the sludge
45 separated becomes a granular coky mass.
13. In the purification of high boiling
mineral lubricating oils, the process which
comprises warming dry aluminum chlorid
with a plurality of portions of such oil and
50 such portions of oil with a plurality of por-
tions of aluminum chlorid, the operation be-
ing so conducted that fresh oil is first con-
tacted with nearly exhausted chlorid and
nearly purified oil is finally treated with
55 fresh chlorid.
14. The process of bleaching, stabilizing
and purifying lubricating oils which com-
prises producing an internal condensation
attended with deposition of carbon and
60 saturation of unsaturated groups by warm-
ing such oil with a catalytic chemical and
thereafter treating with a pulverulent de-
colorizer.
15. The process of making medicinal oils
65 which comprises warming a high boiling oilwith a catalytic metallic halid for a period
of time. at a temperature insufficient to form
any substantial amount of volatile oils, re-
moving the catalytic halid and treating the
oil with sulfuric acid, and steaming until 70
taste is removed.
16. The process of making medicinal oils
which comprises warming a high boiling
oil with aluminum chlorid for a prolonged
period of time at a temperature insufficient 75
to make volatile oils, removing the aluminum
chlorid and treating with sulfuric acid, and
steaming till taste is removed.
17. The process of making medicinal oils
which comprises warming a high boiling oil 80
with aluminum chlorid for a prolonged pe-
riod of time at a temperature insufficient to
make volatile oils, removing the aluminum
chlorid, treating with sulfuric acid, steam-
ing till taste is removed and finally filtering 85
through a decolorant.
18. The process of making medicinal oils
which comprises warming a high boiling oil
with aluminum chlorid to a temperature of
about 1500 F. for a prolonged period of 90
time, removing the aluminum chlorid and
treating with sulfuric acid, and steaming till
taste is removed.
19. The process of making medicinal oils
which' comprises warming a high boiling oil. 95
with aluminum chlorid to a temperature of
about 1500 F. for a prolonged period of time,
removing the aluminum chlorid and treat-
ing with sulfuric acid, steaming till taste is
removed, and finally filtering through a de- 100
colorant.
20. The process of making medicinal oils -
which comprises warming a high boiling oil
with. aluminum chlorid for about 24 hours
at a temperature insufficient to make volatile 105
oils, removing the aluminum chlorid and
treating with sulfuric acid, and steaming
till taste is removed.
21. The process of making medicinal..oils
which comprises warming a high boiling oil 110
with aluminum chlorid at a temperature in-
sufficient to make volatile ails till the iodin
number ceases to diminish, removing the
aluminum chlorid and treating with sulfuric
acid, and steaming till taste is removed. 115
22. The process of making medicinal oils
which comprises warming with aluminum
chlorid a high boiling petroleum oil derived
from a crude petroleum having an asphaltic
base, such warming being for a prolonged 120
period of time and at temperature insuffi-
cient to make volatile oils, removing the
aluminum chlorid and treating with sul-
furic acid, and steaming till taste is re-
moved. 125
23. The process of making medicinal oils
which comprises warming with aluminum
chlorid a high boiling petroleum oil derived
from a crude petroleum having an asphaltic
base, such warming being for a prolonged 130.7
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McAfee, Almer M. Purifying Oils, patent, August 27, 1918; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257804/m1/7/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.