Compound type quaternary ammonium salt cation silicate mineral collecting agent and preparation method thereof

A technology of quaternary ammonium salt cations and silicate minerals, applied in solid separation, flotation, etc., can solve the problems of low recovery rate of concentrate, high content of silicate and phosphorus, low silicon content of ore, etc. Simple process, good environmental performance, and strong collection capacity

Active Publication Date: 2016-03-16
SINOSTEEL MAANSHAN INST OF MINING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] There are still some deficiencies in the patented technology disclosed above, such as the silicate and phosphorus content in the flotation concentrate is too high, the recovery rate of the concentrate is low, or it is suitable for the situation where the silicon content in the ore is low, and the flotation process need to add other auxiliary regulators

Method used

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  • Compound type quaternary ammonium salt cation silicate mineral collecting agent and preparation method thereof
  • Compound type quaternary ammonium salt cation silicate mineral collecting agent and preparation method thereof
  • Compound type quaternary ammonium salt cation silicate mineral collecting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Preparation of collector: react tetradecyl tertiary amine with benzyl chloride at 95°C for 2 hours, then cool to 45°C, add fatty alcohol polyoxyethylene ether nonionic surface active agent accounting for 4% of tertiary amine mass Finally, add diesel oil accounting for 3% of the mass of tertiary amine, and stir evenly at 40°C for 10 minutes to obtain the collector of the present invention.

[0039] Under laboratory conditions, when the dosage is 200 g / ton, the results shown in Table 1-5 are obtained through the open-circuit test of one rough and two fine reverse flotation.

[0040] Table 1-5 embodiment 1 laboratory test result

[0041]

[0042] The result in the table 1-5 shows, the collector consumption of the present invention is 200 grams / ton, and when other two kinds of comparison agent consumptions are 250 grams / ton, reverse flotation collector developed by the present invention and tetradecyl Compared with trimethylammonium bromide and 817M (applied on site in ...

Embodiment 2

[0044] Collector preparation: react cetyl tertiary amine and benzyl chloride at 95°C for 2 hours, then cool to 45°C, add fatty alcohol polyoxyethylene ether nonionic surfactant accounting for 4% of tertiary amine mass, Finally, add diesel oil accounting for 3% of the mass of the tertiary amine, and stir evenly at 40°C for 10 minutes to obtain the collector of the present invention.

[0045] The test ore sample and the beneficiation process conditions are the same as those in Example 1, and the test results are shown in Table 1-6.

[0046] Table 1-6 embodiment 2 laboratory test result

[0047]

[0048] The results in table 1-6 show that the collector consumption of the present invention is 200 grams / ton, and when other two kinds of comparison agent consumptions are 250 grams / ton, the reverse flotation collector developed by the present invention and cetyl Compared with trimethylammonium bromide and 817M (Australian on-site application), the collector of the present inventio...

Embodiment 3～8

[0050] The test ore sample and the beneficiation process conditions are the same as those in Example 1, and the test results are shown in Table 1-7. The preparation process and steps are the same as in Example 2.

[0051] Table 1-7 The distribution ratio of each component in Examples 3 to 8 (parts by mass)

[0052]

[0053] Note: A-tetradecyl tertiary amine, B-pentadecyl tertiary amine, C-hexadecyl tertiary amine, D-heptadecyl tertiary amine.

[0054] The test ore sample and the beneficiation process conditions are the same as those in Example 1, and the test results are shown in Table 1-8.

[0055] Table 1-8 Laboratory test results of Examples 3 to 8

[0056]

[0057] As can be seen from Table 1-8, the composite quaternary ammonium salt cationic silicate mineral collector prepared by the present invention is used for the flotation of microfine grain iron ore, and the iron concentrate grade and recovery rate obtained are all better than ten Hexaalkyltrimethylammoniu...

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Abstract

The invention discloses a compound type quaternary ammonium salt cation silicate mineral collecting agent and a preparation method thereof. According to the technology, the method comprises the following steps that 1, any one of alkyl tertiary amine containing carbon 14 to carbon 17 reacts with benzyl chloride or benzyl bromide accounting for, by mass, 45%-55% of the alkyl tertiary amine for 90-150 min under the condition of 90 DEG C-100 DEG C, then is cooled to 40 DEG C-50 DEG C and becomes to light yellow paste; 2, fatty alcohol-polyoxyethylene ether nonionic surfactant containing, by mass, 3%-8% of the alkyl tertiary amine is added; and 3, diesel oil accounting for, by mass, 2%-5% of the alkyl tertiary amine is added and uniformly stirred for 5-20 min at the temperature of 35 DEG C-50 DEG C, and the collecting agent is obtained. The compound type quaternary ammonium salt cation silicate mineral collecting agent has high collecting capacity and excellent selectivity on silicate minerals contained in micro-fine particle iron ore, floatation can be conducted normally within the ore pulp temperature of 5 DEG C-40 DEG C, the pH adaptive range of ore pulp is wide, and the floatation can be conducted normally within the pH range of 5-11.

Description

technical field [0001] The invention relates to a silicate mineral collector, in particular to a silicon-reducing collector for reverse flotation of microfine iron ore whose gangue mineral is silicate mineral. Background technique [0002] Silicate minerals are always symbiotic with useful minerals as gangue minerals. Therefore, almost all flotation processes involve flotation separation of useful minerals from silicate gangue minerals, especially iron ore. Most of the gangue minerals are quartz, feldspar, hornblende, spodumene, Mica and clay (kaolin, chlorite, etc.) silicate minerals. [0003] At present, the iron ore reverse flotation agents used in industry mainly fall into the following two categories: [0004] The first is anionic reverse flotation collectors, which are mainly fatty acids or modified fatty acids. For example, the anionic reverse flotation collector MZ-21 developed by Ma'anshan Mining Research Institute in 2000 was tested in Qidashan Concentrator of An...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D101/02
Inventor 陈玉花潘长远孙炳泉彭小敏王宽魏礼明胡俊高春庆侯更合
Owner SINOSTEEL MAANSHAN INST OF MINING RES
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