Montana oil and mining journal. [volume] (Great Falls, Mont.) 1931-1953, 1940-08-31

profits by the two companies.
Work now in progress includes
the driving Of a cross-cut to connect
underground the shaft Of the Emma
property with the larger shaft OF
the Original Mine of the Anaconda
company. a short distance away.
AS soon as this is completed. the
Emma mine will be put into full
operation. to produce not less than
400. 600 tons Of ore which will yield
100 600 tons of high grade cOncen-
trate per annum. The government
requires delivery of $4,000 tons
of high grade concentrated man
ganese annually.
While underground work IS IN
progress work is under way on
nodulizing plant at Washoe Reduc-
tion works at Anaconda, converting
into a manganese concentrator part
of the present copper concentrate
The only ore now used is that which
runs approximately 40 per cent
manganese. No adequate process
has been developed to profitably
handle lover grade ores of which
there are tremendous quantities In
the Butte mines. The ore is heated
in a nodulizing plant and concen-
trated under a process which has
been perfected by Anaconda since
the close of the last war. The
work on developing a process to
concentrate pink manganese was
successfully carried out for the
first time in metallurgical history
near the close of the last war by
Carl ]. Traueman, Butte engineer
The Anaconda has through extern
sive research perfected a process
that not only RECEIVERS a high grade
manganese concentrate but also re-
covers the lead, zinc and silver
content The concentration process
raises the grade of manganese and
removes cost of the silica and other
impurities. The concentrate is then
further beneficiated through
roasting operation to drive off the
carbon dioxide and raise the man
ganese content to from $50 to
$50. Anaconda expects to deliver
concentrate that will average 5S Go
or better and this will be the
finest grade of manganese for use
in armor plant and other steels
that is available anywhere in the
world.
Becau use of metalurgical problems
involved in handling domestic ores,
the United States has depended up
on foreign sources. chiefly Russia.
Africa Gold Coast. Brazil and Cuba,
the local market being around SOO,-
900 tons OF manganese annually.
In 1889 total U. S. manganese
imports amounted to 627,129 long
tons. with the peak year 1887 when
s1I.s19 long tons were imported.
Imports from Russia last year ac-
counted for 1929 tons, compared
with 166,043 tons in 1898 and
3S3.94e tons in 1887. The African
Cold Coast was the largest shipper
10 this country in 1899 with
total OF 252923 tons, compared
with 1883 in 1888 and 254,457
tons in 1897. Cuba shipped 1867
935 tons to this country last year.
against 131,423 in 1898 and 1922
937 tons in 1897. Brazil ship
ments amounted to 42.713 tons in
1899. compared with 29,69S tons
in 1888 and 77,9sS tons in 1887.
In the future. however, 1t Is
probable that Montana will supply
most of the domestic needs. Butte
has the largest supply of low grade
pink manganese or rhodochrosite IN
the world. said to run into millions
of tons, assaying from 20 to 400
manganese. Thus war industry
is likely to develop a permanent
l,,-+,-,, for tho State Of Montana