SU1090446A1 - Method of dressing fluorite ores - Google Patents

Abstract

A method of enrichment of fluorite ores, including preconditioning of the raw material with modifiers, a fatty acid collector, basic fluorite flotation, introduction of a modifier into the pulp, and cleanup flotation, characterized in that, in order to improve fluorite extraction in concentrate and concentrate quality, as a modifier, as a modifier, as a modifier, as a modifier, as a modifier, as a modifier. t synthetic wetting agents containing enzymes.

Description

four

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SP) The invention relates to the enrichment of minerals, in particular to the flotation enrichment of fluorite ores. There is a known method of flotation of fluorite ores, including the introduction of depressant reagents — liquid glass, soda, caustic soda, etc., in grinding, basic flotation, and in refining operations and using as a collector of oleic kHcno C UU. The disadvantage of this method is the low technological performance, which is due to the low depressing activity of the modifiers used. Closest to the invention to the technical essence and the achieved result is a method of enrichment of fluorite ores, including preconditioning of the raw material with modifiers, fatty acid collector, basic fluorite flotation, the introduction of modifier into pulp and C23 flotation cell. The disadvantage of this method is the low extraction of fluorite in the concentrate and the quality of the concentrate. The purpose of the invention is to increase the extraction of fluorite in the concentrate and the quality of the concentrate. The goal is achieved by the fact that, according to the method of enrichment of fluorite ores, including preconditioning of the raw material with modifiers, a fatty acid collector, the main flotation of fluorite, the introduction of modifier into the pulp and the cleaner flotation, as a modifier, synthetic detergents containing in its composition enzymes. Such synthetic detergents have specific properties: they contribute to the removal of contaminants of biological origin, organic substances during washing. This is their property - the effect on the sorption of organic substances by the surface can also be effective in the flotation of ores. In the USSR, the industry mastered the production of synthetic washing pores with biological additives Oka Bio-6, CMC OKA is manufactured according to TU 6-15-1053-77. The formulation of synthetic washing powder OKA with biological additives is presented in Table 1 Table 1 Components Content, Surface active substances including: alkyl benzene sulphonates Oxified fatty alcohols or alkanolamides fatty acid soaps Tripolyphosphate sodium Silicate sodium in terms of sodium bicarbonate Carbomethylcellulose. Vine Optical bleaches (Belofor-KD, or OD, or KB, Rimons RA) Alkaline protease enzyme preparation (in terms of 50,000 units / g enzymes) Sodium sulfate + water It was experimentally established that CMC containing enzymes have weak collective and foaming properties increase of technological indicators due to their modifying effect. The method is implemented as follows. The original ore is crushed in the presence of a modifier, treated with a fatty acid collector, ammonium silicofluoride, and the main flotation of fluorite is carried out. Trinolyphosphate, synthetic detergents containing enzymes, are introduced into the pulp and scrubbed. Example 1 Flotation is carried out in a carbonate-fluorite ore having the following composition:%,%; flurite 24, calcite 7.5; Vesuvian 18; feldspar 32.5; quartz 10; sulfide 1; iron mica 2; iron hydroxyl 4; Ore is crushed with (700 g / t), treated with fatty acid collector (300 g / t), ammonium silicofluoride (300 g / t), and basic fluorite is carried out. Then, fluorite (the concentrate is subjected to peeing. To the peeing are added tripolyphosphate and modifiers OKA, Lotos,. News. The obtained results of the optimal flow rates of the modifiers and the conditions are experimentally shown in Table 2. Table 2

Industrial tailings 1-3 Source ore Fluorite concentrate News. Industrial product 6-8 Industrial product 4-5 Tails + industrial products 1-3 Source ore Fluorite concentrate Lotos Industrial product 6-8 - 4-5 Tails + industrial products 1-3 Source ore

From the data table. 2 shows that in Thus, the use of the modifiers with the Novost 55 modifiers, the Oka cator, which has the Oka in its composition, allows us to increase the visibility, allows for significant extraction of fluorite by 15%, without reducing the technological parameters of the concentrate. | Tatsii. 72.2 100.0 12.9 6.7 75.4 100.0 13.7 73.3 100.0 4.71 Tripolypho sphat (300 g) 22.59 Modifier (50 g / t) 96.76 V-pereochistka 52.39 Tripolyphosphate (TPF-250 g / t) Modifier 50 g / l 50 g / l 7.01 24.26 VI-dressing of TPF 250 g / t 95.69 Unitary Enterprise Cleaner TPF-250 g / t USh Clearing 6.85 25 62

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Example 2. Compared. tab. 3. The remaining conditions of the experiment are an individual test of the CMC Oka, Vio-C is logical to Example 1, the results of which are compared to Lotus, the composition of which is given in the actual tests are given in Table. four.

Composition

Content of surface active substances (surfactants)%, not less

Content of sodium silicate in terms of SiOj ° Z not less

The sodium content of triplyphosphate (in terms of)%, not less

The content of optical bleach (quality test)

Moisture content,% not more than

The content of proteolytic enzymes (proteolytic activity of units / g) is not less

whether enzymes,% not more

Tails - - products 1-3 74.2 5.10 16.2

Table 3

Lotus, Oka I Bio-S

14

14

17

4.5 4

21

21

21

Availability AvailabilityAvailability of 10 5 5

500 400 - 2 2

From the results table. 3 and 4, it follows that the content of enzymes in the Oca CMC and Bio-C (2%) is sufficient for their effective action during the flotation process: (PLA with enzymes in comparison with 25 with CMC without those allow increasing fluorite extraction by 16.5- 17.0% and concentrate quality by 1, 7, 2, 0% v

Thus, CMC Oka and BIO-S zo increase the selectivity of flotation and / extraction of the mineral, i.e. Provide Foam Product 23.55 Tails 95.0 Tails 100.0 Original Ore Foamy Product Tails 100.0 Original Ore

l) CFA - ammonium silicofluoride - (Sc) 2SiF

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Continued table. four

wah modified. (regulatory) effect on the flotation process.

Example 3. Checking the collective action of the CMC Oka and Vio-S by means of 11 direct flotation of fluorite ore at flow rates up to I kg / t shows that the CMC does not have practically acceptable collective properties (there is no useful yield of concentrate, Table 5), .. due to the presence in the CMC, along with the surfactant, a large proportion of inorganic substances. T l and 5. 18.52 4.0 23.55 96, 100 23.77 100 Grinding: Io-O, 7 kg / t Treatment: CMC Oka-0.5 kg / t, 3 kg / t Essential flotation - 15 min. No cleanings were performed (there is no useful yield of foam product). Same CMC Oka 1 kg / t

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CMC Oka and Bio-S as well as to determine their action when taking

CMC Lotus have weak foam-like modifying properties. The presence of them

a positive effect in comparison. Thus, the use of the CMC Lotus presentation shows that this 5 method allows to increase

the action is not caused precisely by the ejection of fluorite in the concentrate on

property. Proceeding from the above, a16.5 and the quality of the concentrate on 1.7 and also the composition of CMC with enzymes should be 2.0%,

Claims (1)

METHOD FOR FLUORITE ORE TREATMENT, including pre-conditioning of feedstock with modifiers, a fatty acid collector, basic fluorite flotation, introduction of a modifier into the pulp and purification flotation, characterized in that, in order to increase the fluorite extraction into the concentrate and the concentrate quality, the modifier is introduced as a pulp synthetic detergents containing enzymes. 4 ^ Aude