FLUORSPAR IN THE USSR

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00039R000100200007-2
• Release Decision: RIPPUB
• Original Classification: R
• Document Page Count: 756
• Document Creation Date: December 22, 2016
• Document Release Date: March 8, 2012
• Sequence Number: 7
• Publication Date: March 13, 1952
• Content Type: REPORT

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Flotation of ore with Li.7.5 percent CaF2 and 19.1 percent
CaCO3 yielded a concentrate with 97.5 percent CaF2 and 1.0 per?
cent CaCO3, with 92.L percent of the total fluorite recovered in
the concentrate.
These results are much higher than those obtained by
Williams and Greeman in their method of flotation with oleic
and cresylic acids after preliminary desl.iming. (See Table 221,)
FLOTATION AGENTS FOR FLUORITE
The flotation of fluorite, like that of many other none-
metallic minerals, is done by using carboxylic acids as collectors
.
In practice, oleic acid or its sodium soap, sodium oleate are the
only Collectors whose use is well knotrn in fluorspar flotation mills
in actual operation. The flotation of pure fluorite with oleic acid
under various conditions is discussed in detail :.i.n the chapter
"Flotation of fluorite??. Oleic acid gave most satisfactory re~
suits in testing the amenability of our ores to flotation and
left no doubt as to the possibjlilt~r and technical expediency of
its use as a. collector for fluorspar. These materials will be
e
presented in detail below.
Sodium oleate gave less favorable results in a number of
cases.
At the same time there are a number of substantial dish
advantages in using oleic acid as a collector. The principal
objections are the varying quality of the technical cal product, its
sensitiveness to the pulp temperature, its marked sensitiveness
~~WXIi1,.MMiMR N "f y '! X ., dy FN l ~p~ll+`
r .
Declassified in Part - Sanitized Copy Approved for Release 2012/03/08 : CIA-RDP82-00039R000100200007-2
 Declassified in Part - Sanitized Copy Approved for Release 2012/03/08 : CIA-RDP82-00039R000100200007-2
to the pH of the pulp, and its high cost,
The results of the rougher flotation of Solonechnoye
fluorspar under the same conditions, using the same amounts of
collector, but using oleic acid from different batches of the
technical product, are presented in Table 35 to illustrate this
lack of uniformity in technical oleic acid,
Table 35
Flotation of Solonechnoye fluorspar with technical oleic acid from
different batches
Experiment
Products
Yield in %
CaF2 content in o
CaF2 Recovery in %
1
Concentrate
Middlings and
57,1
95.2
6