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CN1038231C - Selective capturing agent for bastnaesite-(La) ore - Google Patents

Selective capturing agent for bastnaesite-(La) ore Download PDF

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Publication number
CN1038231C
CN1038231C CN 93112332 CN93112332A CN1038231C CN 1038231 C CN1038231 C CN 1038231C CN 93112332 CN93112332 CN 93112332 CN 93112332 A CN93112332 A CN 93112332A CN 1038231 C CN1038231 C CN 1038231C
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China
Prior art keywords
collecting agent
flotation
existing
rare
present
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Expired - Fee Related
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CN 93112332
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Chinese (zh)
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CN1090226A (en
Inventor
曾兴兰
李芳积
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Shanghai Polytechnic University
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Shanghai Polytechnic University
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Priority to CN 93112332 priority Critical patent/CN1038231C/en
Publication of CN1090226A publication Critical patent/CN1090226A/en
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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention discloses a selective collecting agent for the flotation of bastnaesite, which is a high-efficiency collecting agent for rare-earth minerals. Methyl salicylate reacts with hydroxylamine in a strong basic medium to prepare the high-efficiency collecting agent for rare-earth minerals by the processes of oximation, acidification and sponification. Compared with the existing fat collecting agent, the existing alkane sulfonic salt, the existing phosphoric acid collecting agent, the existing hydroximic acid collecting agent of H205, etc., the present invention has the advantages of good water solubility, stable production and technical indication, good selectivity, high rare earth flotation grade and recovery rate, etc.

Description

A kind of selective capturing agent for bastnaesite-(La) ore
The present invention is a kind of selective copper collector of flotation bastnasite, belongs to the flotation of material field.
At present, the collecting agent of FLOTATION SEPARATION bastnasite Rare Earth Mine roughly has three classes: one, fatty acid collecting agent.As Japanese professor Xiang Jingzi with enuatrol with No. 300 medicines, tallow diamines acids flotation rare earth under acid medium and 50-90 ℃ of condition; U.S. molybdenum company produces f_c_ce_la concentrate with lignin ammonium carbonate, waterglass and N-80 oleic acid under 90-100 ℃ of condition.Two, alkane sulphur salt, phosphoric acid class collecting agent.This type of is not used for producing as yet.Three, hydroximic acid collecting agent.Begin (C the sixties as the former Soviet Union with HM-50 7-9Hydroximic acid) flotation rare earth; The eighties, China has successively developed cycloalkanes hydroximic acid 802, H 205(2 hydroxyls-3 naphthalene hydroximic acid), benzene hydroximic acid etc. are as effective collecting agent of flotation Rare Earth Mine.Disclosed hydroxamic acid type collecting agent in " development of hydroxamic acid type collecting agent and the test of flotation rare-earth mineral " delivered as, 1985 the 3rd phases of " rare earth " magazine; Packet header Institute of Metallurgical Technology the 1st phase of nineteen eighty-three also once disclosed " novel rare-earth collecting agent-802 " for another example.In this three classes collecting agent, the oleic-acid separating effect is poor, and alkane sulphur salt, phosphoric acid class collecting agent are not used for producing; The hydroximic acid selectivity is good, and technical indicator height, but also exist on the high sidely be the more important thing is poorly water-soluble, and easy blocking pipe is to making the production and technical indication instability.
The objective of the invention is to: propose that a kind of selectivity is good, soluble in water, technical indicator is high, be convenient to the selective copper collector of the flotation bastnasite operating and manage.
Technical characterictic of the present invention is: collecting agent by structural formula is
Figure C9311233200031
Bigcatkin willow hydroxy acid amine and sodium metasilicate and aluminium salt combine.It is characterized in that salicylic acid hydroxyl hydroxamamide: sodium metasilicate: aluminium salt=1.3: 1.5: 0.5 (weight), and be mixed with the aqueous solution of 2-5%,
Salicylic acid hydroxyl hydroxamamide be by gaultherolin in strongly basic medium with azanol reaction, through oximate, acidifying, saponification and to make its reaction as follows:
Figure C9311233200041
Reaction condition is:
The oximate acidifying saponification temperature ℃ 25-35 40-50 30-40 reaction time: hour 8-10 4-6 4-5 ph value of reaction 12-13 2-3 8-9
Application process of the present invention is as follows:
With rare earth, grinde ore, size mixing, add PH and adjust agent, add inhibitor, add collecting agent of the present invention then, through flotation, separation, get rare earth ore concentrate (bastnasite), surplus mine tailing (Fe, Si, S, Ca, Ba, Al etc.), collecting agent wherein of the present invention adds and sodium metasilicate, and the proportioning of aluminium salt is 1.3: 1.5: 0.5. (weight)
Flotation temperature: 35-45 ℃
PH value: 7.5-8.5
Flotation time: 16-20 minute
Compare prior art, the present invention has the following advantages:
1. manufacturing process is simple, and is nontoxic, tasteless, and the three wastes are few,
2. good water solubility, selectivity is good, does not need during ore dressing to use under strong basicity and high temperature (90-100 ℃) or acid condition, helps operation and management,
3. adopt collecting agent of the present invention, the grade and the rate of recovery of flotation rare earth obviously improve
4. low-consuming only is 1/2 of at present existing collector dosage,
Below in conjunction with embodiment, the invention will be further described: feed intake by following proportioning preparation:
112 kilograms in caustic soda
15 kilograms of azanols
25 kilograms of methyl salicylates
38 kilograms of hydrochloric acid
20 kilograms of ammoniacal liquor
At first, with methyl salicylate, caustic soda and azanol carried out oximation reaction 8 hours under 30 ℃, and reaction pressure is a normal pressure; And then adding hydrochloric acid 45 ℃ of following acidification reactions 4 hours, pressure is normal pressure; Add ammoniacal liquor again and carry out saponification, 35 ℃ of temperature make bigcatkin willow hydroximic acid ammonium after about 4 hours, and again with bigcatkin willow hydroximic acid ammonium and sodium metasilicate, aluminium salt is mixed with the aqueous solution of 2-5% with 1.3: 1.5: 0.5 ratio, makes this collecting agent,
During use, by one ton of former mining collecting agent 1.0-1.2 kilogram of every processing, and assistant medicament (as adjusting agent, inhibitor and foaming agent) the total consumption of floating agent that adds the 1.0-1.5 kilogram is the 2.0-2.7 kg/ton, during use this collecting agent is added in the good ore pulp of mill successively, at 35 ℃ of following PH is 7.5-8.5, with mechanical agitation type flotation 16-20 minute, through one roughing, 2-4 selected acquisition high-quality f_c_ce_la concentrate.
The present invention α% 3.62 4.52 5.47 6.06 9.52 10.39
β% 38.65 47.02 50.80 49.55 54.86 54.65
ε% 85.95 73.72 82.00 83.40 86.80 88.21
Prior art H2O5 α% 3.82 4.45 5.45 6.24 9.47 10.36
β% 24.37 34.67 44.95 43.97 52.72 50.32
ε% 79.61 80.52 81.24 80.89 71.57 82.88
α % is that head grade β % is a concentrate grade ε % concentrate rate of recovery subordinate list

Claims (3)

1. the selective copper collector of a flotation bastnasite comprises the sodium metasilicate of effective dose, and aluminium salt is characterized in that also comprising the bigcatkin willow hydroximic acid amine of effective dose, and its structural formula is as follows:
Figure C9311233200021
2. according to the collecting agent of claim 1, it is characterized in that bigcatkin willow hydroximic acid amine: sodium metasilicate: the ratio of aluminium salt is 1.3: 1.5: 0.5 (weight).
3. according to the collecting agent of claim 1, it is characterized in that described bigcatkin willow hydroximic acid amine is made through oximate, acidifying and saponification by gaultherolin.
CN 93112332 1993-01-30 1993-01-30 Selective capturing agent for bastnaesite-(La) ore Expired - Fee Related CN1038231C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93112332 CN1038231C (en) 1993-01-30 1993-01-30 Selective capturing agent for bastnaesite-(La) ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93112332 CN1038231C (en) 1993-01-30 1993-01-30 Selective capturing agent for bastnaesite-(La) ore

Publications (2)

Publication Number Publication Date
CN1090226A CN1090226A (en) 1994-08-03
CN1038231C true CN1038231C (en) 1998-05-06

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104148189B (en) * 2014-08-08 2016-08-17 西北矿冶研究院 Rare earth mineral collecting agent
CN104607320A (en) * 2014-11-19 2015-05-13 四川省地质矿产勘查开发局成都综合岩矿测试中心 Efficient flotation collector for rare earth ore
CN106040436B (en) * 2016-05-27 2019-01-04 中国地质科学院矿产综合利用研究所 Low-temperature-resistant rare earth ore flotation collector, preparation method and application thereof
CN110449257B (en) * 2019-07-31 2021-12-07 中国恩菲工程技术有限公司 Beneficiation method of bastnaesite
CN111298980B (en) * 2020-02-29 2022-04-01 武汉理工大学 Preparation method of mixed long-carbon-chain hydroxamic acid collecting agent

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