SU710644A1

SU710644A1 - Method of concentrating feldspar ores

Info

Publication number: SU710644A1
Application number: SU782657645A
Authority: SU
Inventors: Серафима Георгиевна Маслова; Нина Александровна Попугаева
Priority date: 1978-08-21
Filing date: 1978-08-21
Publication date: 1980-01-25

Description

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Изобретение относитс к области обогащени полезных ископаемых и может быть использовано при обогащении полевошпатсодержащих руд.The invention relates to the field of mineral processing and can be used in the enrichment of feldspar-containing ores.

Известен способ выделени полевых шпатов из хвостов флотации руд редки и других металлов, включаюищй последовательное выделение железо- и кальцийсодержащих минералов, слюд и затем полевых шпатов. Полевошпатова флотаци проводитс обычно катионоактивным собирателем во фтористоводородной среде 1.A known method for isolating feldspar from ore flotation tails is rare and other metals, including the sequential release of iron and calcium-containing minerals, micas, and then feldspars. The feldspar flotation is usually carried out by a cationic collector in a hydrofluoric environment 1.

Недостатком способа вл етс селективность процесса разделени полевого шпата и кварца при обогащении труднообогатймых руд (полевой шпат серицитизирован, каолинизирован и т.д.).The disadvantage of this method is the selectivity of the process of separation of feldspar and quartz during the enrichment of hard ores (feldspar is sericitized, kaolinized, etc.).

Известен способ обо/ащени полевошпатовой руды, заключающийс в кондиционировании измельченной руды в кислой среде с солью минеральной кислоты и катионоактивным собирателем и флотации полевых шпатов 2.There is a method for feldspar ore processing, which consists in conditioning the crushed ore in an acidic medium with a salt of mineral acid and a cationic collector and flotation of feldspar 2.

Целью изобретени вл етс повышение селективности процесса флотационного разделени полевого шпата и кварца и получение полевошпатовых концентратов более высокого качестваThe aim of the invention is to increase the selectivity of the process of flotation separation of feldspar and quartz and to obtain higher quality feldspar concentrates.

Это достигаетс тем, что катионоактивный собиратель предварительно смешивают с жидким стеклом при соотношении катионоактивного собирател и жидкого стекла от 2,5:1 до 2,0:1.This is achieved in that the cationic collector is pre-mixed with liquid glass at a ratio of cationic collector and liquid glass from 2.5: 1 to 2.0: 1.

Способ осуществл ют следующим образом.The method is carried out as follows.

Руду измельчают, выдел ют слюду и железо- и кальцийсодержащие минералы . В оставшийс продукт ввод т фтористоводородную кислоту дл обеспечени величины рН 2,3-2,8. Затем при перемешивании подают смесь катионоактивного собирател и жидкого стела . Пульпу кондиционируют в течение 6 мин и после введени вспенивател флотируют полевой шпат.The ore is crushed, mica and iron and calcium-containing minerals are separated. Hydrofluoric acid is added to the remaining product to provide a pH of 2.3-2.8. Then, with stirring, a mixture of a cationic collector and a liquid stele is fed. The pulp is conditioned for 6 minutes and after the introduction of the blowing agent, feldspar is floated.

Claims

Example. The chamber product of sulfide flotation after separation of iron and calcium-containing minerals and mica (complex molybdenum ore containing 42% quartz and 34% feldspar sericitized and kaolinized) from ngo is mixed with a mixture of cationic collector of ANP and) $ idko glass. The ratio of reagents is variable. Sulfuric acid up to pH 5.8-6.0 and hydrofluoric acid up to pH 2.3-2.8 are used as a modifier. After per1 - tk - -. lg ,,. 7} ...,. mixing pulp with a mixture of a cationic collector of ANP to liquid glass is floated for 6 minutes at a consumption of basic oil of 20 g / t to obtain a frothy product — feldspar concentrate, which is subjected to two cleanings of 5 minutes each, and a chamber quartz-containing product. The results of flotation are compared with the results of experiments with a separate supply of ANP and liquid glass reagent and without loading of liquid glass. Tests have shown that the supply of liquid glass to the process improves the quality of the feldspar concentrate and a significant technological effect is achieved if a cationic collector of ANP with liquid glass is introduced into the process. When using a mixture of the ANP reagent and liquid glass in a 2.5: 1-2.0: 1 weight ratio, a feldspar concentrate was obtained containing 12.78-12.85% of the sum of alkalis with a modulus of 3.77-3.85%. When the cationic collector and liquid glass are fed into the pulp separately, the amount of alkali in the feldspath concentrate does not exceed 10.86%, i.e. It is not ensured that a high-quality (4% or more) base concentrate is obtained. Thus, the main advantage of the present invention is to increase the selectivity of the flotation process of feldspar ores. The method of enrichment of feldspath ores, which consists in conditioning crushed ore in hydrofluoric acid medium with a cationic collector and flotation of potassium-sodium feldspar, which is due to the fact that, in order to increase the selectivity of the process, the cationic collector is pre-mixed with a liquid glass. collector and liquid glass in a mixture of from 2.5: 1 to 2.0: 1. Information sources. taken into account during the examination 1. Revnivtsev V.I. Enrichment of feldspar and quartz. M., Nedra, 1970, p. 68-69.

2. RJ Mining, 1973, 5 D 84.