The Lynden tribune. [volume] (Lynden, Wash.) 1908-current, 1921-12-29
WESTERN PINE
FOR TURPENT|NE
To Be Valuable Stumps Must
Contain so Per Cent Resin
Gus Heart Wood.
NEED MOVABLE DISTILLERY
Most Profitable Use for Crude Pine
Oil Is in Flotation Process
for Ores.

Results of an investigation of the
distillntion of stump wood and log
ging waste of western yellow pine
conducted by the bureau of chemistry,
United States department of agricul-
ture, in cooperation with the Univer-
sity of Idaho, are detailed in Bulletin
1909, issued by the department, a copy
of which may be obtained free upon
application The investigation shows:
In general, the stumps of western
yellow pine are not as uniformly rich
in resin as those of the longleaf yell
low pine in the South Atlantic and
Gulf states. The only wastes from
western yellow pine logging suitable
for profitable distillation on q COM
mercial scale are those resinous
stumps which contain at least so per
cent of resinous heartwood. and the
resinous heartwood of stumps, dead
or down wood, and limbs from which
the sapwood has rotted away.
1t is impossible to classify western
stumps into such grades as rich or
"pitchy." medium and poor mere
ly by a superficial examination of the
quantity of resinous emulation on the
face of the stump.
Rich" stumps, containing not less
than so per cent of very resinous
heartwood, probably can be profitably
distilled in commercial plant where
the stand of such stumps is dense
enough to keep plant supplied for
number of years.
There is well-developed market in
the West for crude pinewood oils for
use in the fotation concentration of
ores. The volume of rich" wood OBJ
tainable within hauling distance is
small. 1t is probable, therefore, that
single retort plants, which can be dis
mautled and moved when necessary
are the most suitable for wood distil
lation in that section of the country
especially in regions remote from thu
railroad. Such plants might be owned
and operated jointly by a number o
settlers.
Medium" grade stumps, though
more plentiful than rich" stumps
could be used in a commercial plan,
only at a cost, delivered, materially
less than the calculated cost per core
of such wood s97, and at prices FOL
products not materially less thar
those given in this bulletin.
The refined turpentine from west
ern yellowpine stump wood, consist
ing mostly of beta-pinene and limo
nene has higher boiling point limit:
than similar turpentne from south
ern yellow pine, and dries much NOR,
slowly For this reason paints an(
varnishes thinned with the turpentin,
take longer to dry than the same
paints and varnishes thinned with tur
pentine made from the longleaf vel
low pine of the South
The solvent power of this turpen
tine is not less than that of wood tur
pentine from longleaf yellow pin,
made and refined by the same process
s 1t is suitable for many. if not all. o
the purposes for which wood turpen
tine can be employed.
The refined pine oil and the crude
oils obtained by distilling western vel
low pine are valuable for ore recov
Ply by the notation process. ms i
*probably the most profitable use tc
M which these products can be put
. The crude light and heavy oils have
germicidal properties approximately
E& half as great as those of phenol, fol-
IA which reason they are useful fol
q shingle stains. wood preservatives
Il vermin killers, and disinfectants,
The pyroligneous acid or "acid liz
uor'' contains approximately one
q fourth the amount of acetic acid
methyl alcohol, and acetone ordinar
lily recovered from hardwood acid liz
uor, and is heavily charged with dis
solved tarry matter, resembling in al
respects the pyroligneous acid oh
tanned in distilling southern yellow
pine wood AT the usual prices, the
recovery of these materials at profit
is hardly possible by present methods
A simple method for the CONNER
cial refining of crude wood turpen
tine, which yields a superior product
has been devised.