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Anion-combined collector for fluorine-free flotation separation of quartz and feldspar and its preparation method and application

A combined collector and anion technology, applied in flotation, solid separation and other directions, can solve the problems of high mutual content of quartz and feldspar, low separation efficiency of quartz and feldspar concentrate, and complicated preparation process, etc. Good selectivity, realize resource utilization, and prolong service life

Active Publication Date: 2019-12-27
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the combined anion / cation collector can achieve fluorine-free separation of quartz and feldspar to a certain extent, there are still cases where the separation efficiency of quartz and feldspar concentrate is not high, and the mutual content of quartz and feldspar is relatively high, and Anion / cation combined collectors need to be used under acidic or weakly acidic conditions. At the same time, the amine cationic collectors used for the preparation of combined agents need to be prepared with pungent, volatile and corrosive hydrochloric acid. The preparation process more cumbersome

Method used

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  • Anion-combined collector for fluorine-free flotation separation of quartz and feldspar and its preparation method and application
  • Anion-combined collector for fluorine-free flotation separation of quartz and feldspar and its preparation method and application
  • Anion-combined collector for fluorine-free flotation separation of quartz and feldspar and its preparation method and application

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Embodiment 1

[0036] An anionic combined collector of the present invention, which is composed of sodium oleate solution and sodium dodecylsulfonate solution in a weight ratio of 1:1, wherein the mass fraction of sodium oleate solution is 1 %, the mass fraction of sodium dodecyl sulfate solution is 1%.

[0037] A kind of preparation method of the anionic combined collector of the present embodiment, comprises the following steps: prepare sodium oleate solution and sodium dodecylsulfonate solution, sodium oleate solution and sodium dodecylsulfonate solution are pressed 1 : 1 weight ratio for proportioning, after mixing the two solutions evenly, an anion combination collector is prepared.

[0038] Wherein, the preparation method of sodium oleate solution includes the following specific operation steps: under normal pressure, oleic acid with an iodine value of 140 is added to warm water at 50°C, and then sodium hydroxide is added to react, and oleic acid and sodium hydroxide The molar ratio i...

Embodiment 2

[0047] A combined anionic collector of the present invention, which is composed of sodium oleate and sodium dodecylsulfonate in a weight ratio of 1:1, wherein the mass fraction of sodium oleate solution is 1%, The mass fraction of sodium dodecylsulfonate solution is 1%.

[0048] A kind of preparation method of the anionic combined collector of the present embodiment, comprises the following steps: prepare sodium oleate solution and sodium dodecylsulfonate solution, sodium oleate solution and sodium dodecylsulfonate solution are pressed 1 : 1 weight ratio for proportioning, after mixing the two solutions evenly, an anion combination collector is prepared.

[0049] Wherein, the preparation method of sodium oleate solution comprises the following specific operation steps: under normal pressure, add oleic acid with an iodine value of 140 into warm water at 60°C, then add sodium hydroxide to react, and oleic acid and sodium hydroxide The molar ratio is 1:1, stirring for 10 minutes...

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Abstract

The invention provides an anionic combined collector for fluoride-free flotation separation of quartz and feldspar and correspondingly provides a preparation method and an application of the anionic combined collector. The anionic combined collector is prepared from a sodium oleate solution and a sodium dodecyl sulfate solution in the weight ratio being 1:(1-2), the mass fraction of the sodium oleate solution is 1%-2%, and the mass fraction of the sodium dodecyl sulfate solution is 1%-2%. The anionic combined collector is good in selectivity, high in collecting ability, capable of effectivelyincreasing the grades and the recovery rates of quartz and feldspar concentrates, capable of avoiding corrosion of dressing equipment in acidic pulp in the flotation process and capable of avoiding fluorine ion pollution caused by a hydrofluoric acid scheme.

Description

technical field [0001] The invention belongs to the field of mineral flotation, in particular to a fluorine-free flotation separation of quartz and feldspar anion combined collector and its preparation method and application. Background technique [0002] my country's quartz and feldspar mineral reserves are large and rich in resources, but the number of high-quality single ores is very small. The two often coexist or are associated with other minerals. Many metal ore flotation tailings contain a large amount of associated quartz and feldspar. Minerals, due to the constraints of beneficiation technology and economic benefits, this type of quartz and feldspar resources are often discarded as waste ores without rational use. Therefore, it is particularly important to carry out research on flotation separation of quartz and feldspar. [0003] The perhydrofluoric acid method is relatively mature in the quartz and feldspar flotation process. Although the flotation efficiency of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D101/02B03D103/02
CPCB03D1/018B03D2201/02B03D2203/02
Inventor 王毓华卢东方蔡娜郑海涛赵悦豪朱广丽
Owner CENT SOUTH UNIV
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