阅读说明：本技术 一种新型表面活性剂在铝土矿反浮选上的应用方法 (A kind of application method of novel surfactant on inverse floatation of bauxite ) 是由 黄志强 余新阳 邱廷省 刘祖文 李立清 廖春发 赵奎 何桂春 艾光华 冯博 于 2019-08-14 设计创作，主要内容包括：本发明公开了一种新型表面活性剂在铝土矿反浮选上的应用方法,在铝土矿反浮选中使用如式I所示的新型表面活性剂作为捕收剂。该新型表面活性剂作为捕收剂,其分子中具有两个亲矿物基团,与矿物表面的作用能力更强,对目标矿物的选择性更好；具有两个疏水性基团,增加捕收剂的疏水能力,对目标矿物的捕收能力更强,相对现有技术中常用浮选捕收剂能有效提高浮选效率和回收率等特点；同时,由于分子中含有不饱和烯基,其具有Krafft点低的特点。相对现有技术中常用浮选捕收剂能有效提高铝土矿反浮选的浮选效率和回收率,且更能在低温情况下使用等特点。(The invention discloses a kind of application method of novel surfactant on inverse floatation of bauxite, use novel surfactant shown in formula I as collecting agent in inverse floatation of bauxite.The novel surfactant is as collecting agent, and there are two close mineral groups for tool in molecule, stronger with the ability to function of mineral surfaces, more preferable to the selectivity of target mineral；Tool increases the hydrophobic ability of collecting agent there are two hydrophobic group, stronger to the collecting ability of target mineral, compared with the prior art in commonly use the features such as flotation collector can effectively improve flotation efficiency and the rate of recovery；Simultaneously as having the characteristics that Krafft point is low containing unsaturated alkenyl in molecule.Flotation collector is commonly used in compared with the prior art can effectively improve the flotation efficiency and the rate of recovery of inverse floatation of bauxite, and the features such as can more use at low temperatures.)

1. a kind of application method of novel surfactant on inverse floatation of bauxite, it is characterised in that: will have Formulas I structural formula 2- butene-1,4- bis- (myristyl piperidines alkyl ammomium chlorides) be used as inverse floatation of bauxite in collecting agent, starch be inhibit Agent, No. 2 oil make foaming agent, and flotation pulp pH value range is pH 5~9, and ore grain size is that -200 mesh account for 50%~100%, float Selecting temperature is 0-35 DEG C；

2. a kind of application method of the novel surfactant according to claim 1 on inverse floatation of bauxite, feature Be: flotation pulp pH value range is pH 5~9；Ore grain size is that -200 mesh account for 50%~100%.

3. a kind of application method of the novel surfactant according to claim 1 on inverse floatation of bauxite, feature Be: the amount ranges of novel surfactant shown in formula I are 10~400g/t.

4. a kind of application method of the novel surfactant according to claim 1 on inverse floatation of bauxite, feature Be: the dosage of starch is 1000~4000g/t；No. 2 oily dosages are 80~200g/t.

5. a kind of application method of the novel surfactant according to claim 1 to 4 on inverse floatation of bauxite, It is characterized in that, entering flotation after mainly comprising the steps that (a) grinde ore；(b) it is added in ore grinding and/or floatation process Floating agent is sized mixing, and novel surfactant shown in formula I is at least contained in the collecting agent of addition；(c) pass through froth flotation Method emersion silicate mineral.

Technical field

The invention belongs to technical field of beneficiation, it particularly relates to which a kind of novel surfactant is in inverse floatation of bauxite On application method.

Background technique

Aluminium is the second largest metal that yield and dosage are only second to iron, is that the national economic development and national defense construction are essential Important foundation raw material are up to 91% with the degree of association of national economy, are widely used in the every field of national economy, are related to building It builds, machinery, communications and transportation, aerospace, electric power, numerous industries such as electrical and packaging.With the rapid development of China, to oxidation The demand of aluminium is growing day by day, but the reality of bauxite resource wretched insufficiency greatlys restrict the development of aluminum i ndustry.According to territory The data that Resources Department 2010 announces, have found out available 8.73 hundred million t of bauxite basic unit price to China in 2009, have only accounted for the whole world About the 3% of alumina ore reserves, and 80% or more the diaspore type bauxite for belonging to middle low alumina -silica ratio (alumina silica ratio 3~8), only There is about 20% ore to belong to high-quality bauxite of the alumina silica ratio 8 or more.It is this kind of excellent with the fast development of China's aluminum i ndustry It is closely depleted that matter bauxite is especially low iron high alumina bauxite resource.High-quality bauxite resource shortage seriously restricts me The sustainable development of state's aluminum oxide industry.Main valuable mineral is diaspore, gangue mineral in the Bauxite Ore in China Mainly kaolinite, illite and pyrophyllite, the diaspore for accounting for mineral total amount 60~70% is in cryptocrystalline or crystallite collection more Fit form output, closely inlays, disseminated grain size is thin with gangue minerals such as silicate mineral, iron oxide.Inverse floatation of bauxite Desiliconization refers in floatation process, and silicate gangue mineral is floated in the form of foam and is excluded as tailing, and target minreal It stays in flotation grain as concentrate.Due to alumina green ore Al₂O₃Grade is high, useful aluminum-containing mineral content height, especially China Diaspore type bauxite, because foam volume is big, can be brought at many disadvantages, therefore bauxite is anti-using direct-flotation desiliconisation technology Flotation desilication technology becomes one of most promising beneficiation method of current bauxite.In floatation process, flotation collector is to close Key directly decides the quality of floatation indicators.Currently, inverse floatation of bauxite mainly uses amine cation-collecting agent, wherein wrapping Amine containing straight chained alkyl, polyamines class, ether amines class, tertiary amines, amides, guanidine and quaternary ammonium salt etc., but common amine collector The shortcomings that be that collecting ability is weak, dosage is big, solubility and bad dispersibility at low temperature.Therefore, in the dressing plant in China, in the winter It causes the dosage of amine cation-collecting agent very big, and aluminium since the dissolubility of common amine cation-collecting agent is poor The index errors such as the grade and the rate of recovery of native mine concentrate.Therefore, in order to solve under low temperature bauxite concentrate in inverse floatation of bauxite The technical problem of floatation indicators difference, the new and effective inverse floatation of bauxite collecting that research and development collecting ability is strong, selectivity is good The sustainable development of agent, development and utilization and related industries to bauxite resource has very great meaning.

Currently, about novel surfactant 2- butene-1 shown in Formulas I, bis- (the myristyl piperidines alkyl chlorinations of 4- Ammonium) in inverse floatation of bauxite as flotation collector application have not been reported.

In view of this present invention is specifically proposed.

Summary of the invention

Exist the technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of novel surfactant Application method on inverse floatation of bauxite, solve existing fatty amines collecting agent is poor to selective bauxite, dosage is big, low Temperature lower solubility and bad dispersibility cause reverse flotation bauxite concentrate grade and the rate of recovery poor, particularly under cryogenic The problem of inverse floatation of bauxite effect difference.

In order to solve the above technical problems, the present invention is using the basic conception of technical solution:

The application method of a kind of novel surfactant on inverse floatation of bauxite, by the 2- butylene-with Formulas I structural formula Isosorbide-5-Nitrae-bis- (myristyl piperidines alkyl ammomium chlorides) is used as the collecting agent in inverse floatation of bauxite, and starch is inhibitor, and No. 2 oil are made Foaming agent, flotation pulp pH value range are pH 5~9, and ore grain size is that -200 mesh account for 50%~100%, flotation temperature 0- 35℃。

The novel surfactant structure is shown in formula I:

When novel surfactant is as collecting agent, flotation pulp pH value range is pH 5~9；Ore grain size is -200 Mesh accounts for 50%~100%.

When novel surfactant is as collecting agent, the amount ranges of novel surfactant are 10~400g/t.

Novel surfactant is used as the operating process of collecting agent are as follows: enters flotation after (a) grinde ore；(b) ore grinding and/ Or floating agent is added in floatation process and sizes mixing, novel surfactant shown in formula I is at least contained in the collecting agent of addition； (c) pass through froth flotation method emersion silicate mineral.

When novel surfactant is used for the collecting agent in reverse floatation of bauxite, starch is added as inhibitor, the use of starch Amount is 1000~4000g/t；It adds No. 2 oil and makees foaming agent, dosage is 80~200g/t.

After adopting the above technical scheme, the present invention has the advantages that compared with prior art.

(1) there are two close mineral groups for tool in the molecule of the flotation collector of novel surfactant, with mineral surfaces Ability to function is stronger, more preferable to the selectivity of target mineral；

(2) there are two hydrophobic groups for tool in its molecule, increase the hydrophobic ability of collecting agent, to the collecting energy of target mineral Power is stronger, can strengthen the effect of inverse floatation of bauxite；

(3) due to, containing unsaturated alkenyl, having the characteristics that Krafft point is low in molecule, have at low temperature good Dissolubility and dispersibility；

(4) flotation collector of novel surfactant of the present invention is at low temperature to the collecting ability of bauxite By force, selectivity is good, improves the grade and the rate of recovery of bauxite concentrate, solving traditional ammonium salt, dissolubility is poor at low temperature, leads Cause collector dosage big, the low technical problem of the grade and the rate of recovery of bauxite concentrate, the valence with good promotion and application Value.

A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.

Detailed description of the invention

The a part of attached drawing as the application, for providing further understanding of the invention, of the invention is schematic Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description Only some embodiments to those skilled in the art without creative efforts, can be with Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:

Fig. 1 is an embodiment 2- butene-1, and 4- bis- (myristyl piperidines alkyl ammomium chlorides) is answered in inverse floatation of bauxite Process flow chart；

Fig. 2 is the process flow chart of novel surfactant flotation kaolinite, pyrophyllite, illite minal；

Fig. 3 is another embodiment 2- butene-1, and 4- bis- (myristyl piperidines alkyl ammomium chlorides) is in inverse floatation of bauxite The process flow chart of application.

It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but It is not intended to limit the scope of the invention.

The present invention provides a kind of novel surfactant 2- butene-1 for inverse floatation of bauxite, the bis- (myristyls of 4- Piperidines alkyl ammomium chloride), the novel surfactant structure is shown in formula I:

The application to the novel surfactant as collecting agent in reverse floatation of bauxite gives combined with specific embodiments below Explanation.