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Патент USA US2105827

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PM its. 18,1938
2,105,827 / -
, . .- UNITED. STATES ‘ PKTENT osnci:
2.10am
CONCENTRATION OI’ .NONII-TAIIE ami
l'rancisxrTartaronillalbes-snl'la.
aisles-to
Phasphateleeovery corporation. New
III.
N.!.,acorpol'ationofnelawaso_
Ne Drawing. ' Application
Dee-bu inlets.
mm. tam
-
v
.v
2 Claims.
_,
;
(cases-1m
The present invention relates in seneral to
ore concentration, and more particularly to con
ordinarllytheover-siaeparticlesareseparatcd
by screening, the remainingmaterial'being then '
centration of non-metallic minerals included in ‘subjected to a desliming operation. The over
the group'oonsisting of phosphates, barite and aise material is usually reground, deslimed, and
I ?uorspar.
added to the deslimed undersise; or it may be
>
‘ The obiectof the invention is to provide for an reground, added to the. undeslimed
improved process enabling the above-mentioned ' and this mixture then deslimed.
unda-sise.
, ‘
The following examples describe certain tests
minerals to be espeditio'mly and e?ectively con
which have been made in carrying the inventlon
centrated from‘ their ores by ?otation.
1’ In‘ accordance with the invention, a pulp of 7 into e?'ect, the reagent. amounts given in each re 10
suitably divided particles of the ore containing ferring to proportions ?gured on the basis of the
dry weight tonnage (2000 pounds) of the mate-.
the non-metallic mineral to undergo concentra
tion is ?rst ‘conditioned by agitation with ?ota- '
tion agents hereinafter stated. and is thereafter
heatedsu?lcientlyto causeair?ocks oi’ the non
metailic mineral particles to form, these ?ocks
rial treated.
'
1
Example I.-Deslimed ore from Mulberry. I'ior
ida, consisting mainly of so-called bone phos
phate of lime (trlcalcium phosphate) and silica .
rising iothe surfacewheretheymaybeskimmed
and of a particle size to pass through a'screen of
or ?oated oil. This second operation may be 35 meshes to the lineal inch, was made ‘up with
carried on in any suitable open vessel instead water to a pulp of about 70% solids. This pulp
of in a ?otation machine, and has been found to was agitated in an impeller-type mixer; and. dur
‘Yield excellent results with relation to both con
ing agitation; the silica tailing, was twice simi-'
tent and recovery of values in the ?oated mate
larly retreated in the heating pan at a tempera
rial, these results being comparable in every Way ture of'approximateiy the boiling point of the
to those obtained by the usual procedure accord
water, without further addition of reagents. The
ing to which the pulp is agitated and .aerated in tailings of these cleaning Operations were as
a ?otation machine at normal temperatures.
The conditioning of the pulp is carried out sayed separately and were found to constitute
middlings which, in practice, would be returned‘
saponi?ahle ‘oil. together with a cooperating agent ' to the heating pans wherein additional recovery
of‘ values would be obtained. The results'are
which cam an oiling of the non-metallic min
indicated in the following table:
7
oral particles by that oil preferentially to the par
ticles of the Banana. As the cooperating agent
many substances have been found useful, these
.
Pimento-y mt
including fatty acids and soaps of fatty acids.
with the aid oi’ a substantially insoluble and un
.sulphonated fatty acids and soaps of sulphonated
fatty acids. and naphthenic- acids, and soaps of
naphthenic acids.- Frequently, the substantially
insoluble and unsaponi?able oil and the cooper
ating agent are employed with alkali and a froth
ing agent. If the cooperating agent is a‘. fatty
acid or fatty acid soap containing lessthan 13
carbon atoms, an activating agent in' the form of
a-soluble salt of a metal should additionally be
employed to render that acid or soap e?ective.
itisimderstoodthattheprocessofthein
B.P.L._ Ins. B-P-L
.............. _-
100.0
Oonoeniratc_-__--__
41s
11.44
as
sun
rs
an
Muslims:
Middlingll
us
3&1‘
-
ass
1M0
5.0:
an
an
is
'
Ls
ms
Example Ill-A sample of the same deslimed
ore was processed in the same manner as indi
cated in the preceding example. except that agi
tationofthepulpinthemixerwascarriedout
vention is one of ?otation within the modern‘ with 1 pound of caustic soda, 1 pound of lead
meaning obthe term. the reagents being em
ployed in such small amoimts that their effect
of buoyancy on the non-metallic mineral parti-4
cles is ncslisible.
'.
‘
nitrate, 8 pounds of fuel oil, 10 pounds of caprylic
acid, and 0.14 pound of the kerosene-rosin solu
tion. As in the preceding example, large air
?ocks carrying the phosphate vaiues'formed and
'i‘opreparetheorefortreatment,it isusually rose to the surface upon treatment ofthe diluted
subiected to a grinding operation and the ground - pulpin theheating pan, again atemperature of
oreispreferablyclassi?edtoremove all particles approximatelytheboilingpoint cd’the waterin
I except those more suitable for
t operation.
the pulp being employed for this treatment, as
9,105,887
well as for the subsequent two cleaning opera
consisting mainly of barite and silica and of a par
tions.
ticle size to pass through a screen 01-35 meshes to
The results were as follows:
‘
‘
Percent assay
22kt‘:
the lineal inch, was processed ‘in the identical
manner indicated in Example 1, except thatv the
reagent-proportions were as follows: caustic soda
0.4 pound, fuel oil 2.98 pounds, fish acid 0.8 pound,‘
and kerosene-rosin solution 0.14 pound. ‘As-be
fore, large air ?ocks carrying the values formed
mt
recovery Ratio
3.2.1.. Ins.
.
-
100.0
I use
30.1
11.34
0.32
1.3
51.11
.... _
20
30.24
w. s
10. 90
B-P-L
.... __
100.0
-->._--_
____ .-
as
-. .... _
____ __
- 18.7
....... -
I and rose to the surface upon treatment of the
diluted pulp in the heating pan, both this treat
ment and the subsequent two cleaning operations
being again carried outat a temperature approxi
mating the boiling point of the water in the pulp.
The following results were obtained, middling #1
beingiof higher grade than middling #2 appar 18
ently because of the much larger quantity of ma
Example [IL-Here 0.8 pound of caustic soda,
4 pounds of fuel oil. and 1 pound of sulphonated
15 _red oil were employed for conditioning a pulp of
the same desiimed ore and of the same consistency
as in the preceding ‘examples, the period of. agi . teriai which dropped in the ilrst cleaning opera
tation in the mixer subsequent to addition of the
‘reagents being the same as before. The sul
20 phonated red oil was obtained by treating 90
'
, Percent assay_ Pom‘
parts by weight of red oil (crude oleic'acid) with
tion:
‘
-
Ewan“:
10 parts by weight of concentrated sulphuric acid
v
‘
-ZBa80| s10,
~(66° Baumé). Again, large'air ?ocks carrying
recovery
Ratio
“80'
the phosphate values formed and rose to the sur- ‘ I.
man
01m in
‘100.0 ...... .
face upon treatment of the diluted pulp in the
as
06.61
121
02.1
1.20
2.4
78.83
10.4:
2.1 ...... -.
heating pan. Here the rougher concentrate ob
as
04.01
11.1:
9.2 ...... tained by this treatment was only once cleaned‘ n‘??“
a4
euo man
so ...... -.
by retreatment in the heating pan. The proce
dures were otherwise the same ,as already indi
trample TIL-Here a synthetic mixture of ap
30 cated, both the treatment resulting-in the pro
proximately equal quantities oi’ .iiuorspar and
duction of the rougher concentrate and the fol
quartz, and of- a particle size to pass through a
25.
lowing single cleaning operation being carried out .screen of'28 meshes to the'lineal inch, was pre
at a temperature approximating the boiling point
and deslimed, the desiimed mixture being
of the water in‘ the pulp; The followingresults pared
made upwith water to a pulp of about 70%
were obtained:
'
>
Percent any
m
B. P. L.
.
Ins.
solids. This pulp was conditioned in the mixer
with 1.02 pounds of fueloil, 0.28 pound of ilsh
m‘
acid, and 0.14 pound of the kerosene-rosin solu
' tion heretofore described, the period of agitation
'
1;»;3 W
'
subsequent to additidn of the reagents being
'
again about two minutes. In the same manner
100.0
45
'
100.0
as before. the conditioned pulp was diluted and
treated in the heating pan to approximately the
'
38.5
73.“
4.74
3.7
36.1!
.... .-
4.7
...... .
62.8
3.80
.... --
7.6
...... _
-
28.12
87.7
8.0
boilin'g'pointofthewatertherein.andatthis
'Emmple IV.—A pulp of the same-deslim'ed ore
and of the-same consistency as before was oon-'
ditioned in the mixer with 1 pound of caustic.
soda. 2 pounds ‘of fuel oil, ‘and 2 pounds of
ment in the heating pan, a-teinperature of ap
proximately the'boiling point of thevwater being
naphthenic acid, the period of agitation subse
quent to addition of thme reagents being I8‘!!!
approximately two minutes. As beiore. treat
ment of the diluted pulp in the heating‘pan
also employed for this cleaning operation. 'lhe
following results were obtained:
causedlargeairiiookscarryingthephosphate
Percent assay an",
55 values to form and rise toithe' surface.
as in
the next preceding example, the rougher con-‘
centrste thus obtained was only once cleaned by
retreatment in the heating pan. Again a tem
‘
------------ --
perature of approximately the boiling point of the
6.0 water ‘in the pulp was employed for bothv the
treatment resulting in ‘the production ‘of the _
cm
‘a:
s10,
as a:
M11313: it: ‘ii-'1’ it‘;
rougher concentrate and the simle cleaning op
' .. eration.
~
M
‘a:
'
it ::::_::::
in the examples heating of the condi
The following results
' tieoedpulp was carried out totely the
‘
Peloaat‘assay
3.12.1.
rad _____ -.'_.-......
Concentrate.
'
.
'
.
"
10:10
27.40
' ?ai
st
‘.0
ll.‘
_
'
‘.0
boiling point of the water therein. it‘ is under
stood that the invention is not-limited to an!
perature'fof-trestment oi’ the condi-_
tionedpulmsincethe'bestandmosteconomical
m. 3'1" '
'
_ ‘.47
‘
temperstureioranyparticularsetofconditions
100.0
81:1
LI
I.‘
...... _.
111
...... -..
70
V.-v--A high-grade barite ore from
' Cartersville, Georgia. wastahen for the purpose
75 of this example. A
0.1 thisores,
a
3
2,196,827
What is claimed is:
‘
v
_1. A process of concentrating by ?otation a
non-metallic mineral included in the group con
sisting of phosphates, barite and ?uorspar, which
comprises agitating a pulp of suitably divided
particles 01' the ore containing the non-metallic
mineral, in the presence of a substantially insolu-v
‘
ble and unsaponi?able oil and a cooperating agent
causing an oiling oi’ the non-metallic mineral par
.
2. A process of concentrating by ?otation a
non-metallic mineral included in the group con
sisting of phosphates, barite and nuorspar, which
comprises agitating a thick pulp of suitably di
vided particles of the ore containing the non
metallic mineral. in .the presence of a substan
tially insoluble and unsaponiilable oil and a; 00-!
operating agent causing .an oiling of the non
metallic mineral particles by that oil preferential
ticles by that oil preferentially to the particles of v 1y to the particles oi, the gangue, ‘diluting the 10
the gangue, heating the pulp suihciently tocause pulp, heating the diluted pulp to approximately
air ?ocks of the non-metallic mineral particles the boiling point or the water therein, and col
to form and rise to the surface, and collecting the lecting the ?oated material, said oil and co
?oated material, said oil and cooperating agent operating agent‘ being employed in such small
15 being employed in such small amounts that their amounts that their e?’ect of buoyancy on the non— 15
effect of buoyancy on the non-metallic mineral. metallic‘ mineral particles is negligible.
' '_
FRANCIS x. TARTARON.
particles ‘is negligible.
CERTIFI GATE
OF
CORRECTION. .
Patent No. 2,105,827.
January‘ is; 1938.
FRANCIS
x. TARTARON. '
_
_
7 It is hereby. certified that error appears ‘in the printed specification
‘of the above numbered patent requiring correction as follows : Page l, ‘second
column, line 19, before "pulp" first occurrence ,‘ insert the word thick;
and line 21,’ afterFagitation." insert the following:
i
'
the following- agents were» added-‘thereto: ‘0 .14. pound offcv'austic
soda, 1;.21 pounds er fuel 011.0,."(7 peund-erri'eh acid, and 0.1h ,
pound of a frothing agent consisting of three parts of crude rosin _
I residue dissolved iriyone part of- kerosene oil. After addition
of the reagents,‘- the pulp was further agitated for about two mine
‘nee. The pulp thus conditioned was diluted
heated in a ‘flat
pan to approximately the boiling point of the water therein. ' At
this point large air flocks carrying the phosphate values. formed
androse to the surface. leaving the silica at the bottom ‘er the '
pan. ,‘i‘his floated material or concentrate was skimmed off and,
upon removal of;
'
and that the said ‘Letters Patent should be read'with these corrections there-e
in that the ‘same may conform to the record of the case in the Patent Office‘.
Signed and. ‘sealed this 22nd day or February,‘ A. p. 1958.
‘Henry Van Arsdale,
(Seal) 7
Acting Conrnis'sion'er of,‘ Patents. ,
3
2,196,827
What is claimed is:
‘
v
_1. A process of concentrating by ?otation a
non-metallic mineral included in the group con
sisting of phosphates, barite and ?uorspar, which
comprises agitating a pulp of suitably divided
particles 01' the ore containing the non-metallic
mineral, in the presence of a substantially insolu-v
‘
ble and unsaponi?able oil and a cooperating agent
causing an oiling oi’ the non-metallic mineral par
.
2. A process of concentrating by ?otation a
non-metallic mineral included in the group con
sisting of phosphates, barite and nuorspar, which
comprises agitating a thick pulp of suitably di
vided particles of the ore containing the non
metallic mineral. in .the presence of a substan
tially insoluble and unsaponiilable oil and a; 00-!
operating agent causing .an oiling of the non
metallic mineral particles by that oil preferential
ticles by that oil preferentially to the particles of v 1y to the particles oi, the gangue, ‘diluting the 10
the gangue, heating the pulp suihciently tocause pulp, heating the diluted pulp to approximately
air ?ocks of the non-metallic mineral particles the boiling point or the water therein, and col
to form and rise to the surface, and collecting the lecting the ?oated material, said oil and co
?oated material, said oil and cooperating agent operating agent‘ being employed in such small
15 being employed in such small amounts that their amounts that their e?’ect of buoyancy on the non— 15
effect of buoyancy on the non-metallic mineral. metallic‘ mineral particles is negligible.
' '_
FRANCIS x. TARTARON.
particles ‘is negligible.
CERTIFI GATE
OF
CORRECTION. .
Patent No. 2,105,827.
January‘ is; 1938.
FRANCIS
x. TARTARON. '
_
_
7 It is hereby. certified that error appears ‘in the printed specification
‘of the above numbered patent requiring correction as follows : Page l, ‘second
column, line 19, before "pulp" first occurrence ,‘ insert the word thick;
and line 21,’ afterFagitation." insert the following:
i
'
the following- agents were» added-‘thereto: ‘0 .14. pound offcv'austic
soda, 1;.21 pounds er fuel 011.0,."(7 peund-erri'eh acid, and 0.1h ,
pound of a frothing agent consisting of three parts of crude rosin _
I residue dissolved iriyone part of- kerosene oil. After addition
of the reagents,‘- the pulp was further agitated for about two mine
‘nee. The pulp thus conditioned was diluted
heated in a ‘flat
pan to approximately the boiling point of the water therein. ' At
this point large air flocks carrying the phosphate values. formed
androse to the surface. leaving the silica at the bottom ‘er the '
pan. ,‘i‘his floated material or concentrate was skimmed off and,
upon removal of;
'
and that the said ‘Letters Patent should be read'with these corrections there-e
in that the ‘same may conform to the record of the case in the Patent Office‘.
Signed and. ‘sealed this 22nd day or February,‘ A. p. 1958.
‘Henry Van Arsdale,
(Seal) 7
Acting Conrnis'sion'er of,‘ Patents. ,
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