CN1032327A - The fractional-distillation extraction of yttrium oxide - Google Patents

The fractional-distillation extraction of yttrium oxide Download PDF

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Publication number
CN1032327A
CN1032327A CN87106846A CN87106846A CN1032327A CN 1032327 A CN1032327 A CN 1032327A CN 87106846 A CN87106846 A CN 87106846A CN 87106846 A CN87106846 A CN 87106846A CN 1032327 A CN1032327 A CN 1032327A
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CN
China
Prior art keywords
extraction
yttrium oxide
yttrium
kerosene
naphthenic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN87106846A
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Chinese (zh)
Inventor
王�琦
李明东
孙永刚
王文斌
郝先库
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAOTOU RARE EARTH RESEARCH INST MINISTRY OF METALLURGICAL INDUSTRY
Baotou Rare Earth Research Institute
Original Assignee
BAOTOU RARE EARTH RESEARCH INST MINISTRY OF METALLURGICAL INDUSTRY
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Application filed by BAOTOU RARE EARTH RESEARCH INST MINISTRY OF METALLURGICAL INDUSTRY filed Critical BAOTOU RARE EARTH RESEARCH INST MINISTRY OF METALLURGICAL INDUSTRY
Priority to CN87106846A priority Critical patent/CN1032327A/en
Publication of CN1032327A publication Critical patent/CN1032327A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C01F17/218—Yttrium oxides or hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/10—Preparation or treatment, e.g. separation or purification
    • C01F17/17—Preparation or treatment, e.g. separation or purification involving a liquid-liquid extraction

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A kind of fractionation extraction method of yttrium oxide, with the rare earth chloride is raw material, under the situation that does not add any additives, adopts naphthenic acid and two yuan of extraction systems of kerosene, propose a kind of suitable ratio and extracting and separating condition, make 99% or 99.99% yttrium oxide product.Easy and simple to handle, production cost is low, has created good hygienic condition simultaneously.

Description

The fractional-distillation extraction of yttrium oxide
The present invention belongs to the hydrometallurgical solvent extraction separation method.
The naphthenic acid that has begun to adopt since the sixties is made extraction agent, kerosene is thinner, adds organic reagent (as alcohol mixture, isooctyl alcohol, phenol, benzene, phosphoric acid fat respectively ...) the organic extraction system formed, studied extraction phenomenon, balance and the law of segregation of yttrium and other rare earth elements.Mitsubishi changes into chemical company and is adopting on the basis of above-mentioned extraction system, also utilizes sequestrant-DTPA etc. to extract yttrium oxide from mishmetal.Shanghai Yuelong Chemical Plant, employing naphthenic acid-alcohol mixture-kerosene such as the coloured research institute in Beijing, Fudan University are extraction agent, from contain heavy rare-earth solution, extract yttrium oxide (naphthenic acid purification by liquid extraction yttrium oxide trial production report, a collection of selected materials of rare earth extraction data, national rare earth extraction meeting for the first time).
Up to the present, to prepare yttrium oxide all be to adopt the polynary hybrid extraction system that additive is arranged to solvent extration.Because the hybrid extraction system in the long-term production running, is difficult to operation and control, particularly product amount and quality are not easy to be guaranteed, and the additive of common usefulness, and stink is very big or toxic, is unfavorable for the environmental health of production plant.
In order to simplify extraction system, be convenient to the quality product and the yield control of production process, reduce cost, set up a good operating environment, the contriver has systematically studied and has not used additive, is the separation method of extraction agent with naphthenic acid-kerosene, has found suitable ratio and extracting and separating condition.
The present invention is a raw material with the rare earth chloride that contains yttrium, adopt naphthenic acid and two yuan of extraction systems of kerosene, mixed in 1: 3 by volume, with 2N salt pickling 2-3 time, carry out saponification with salt-free water washing, industrial ammonia or sodium hydroxide again,, make 99% or 99.99% yttrium oxide product through laboratory funnel simulation test and chute expanding test, in mishmetal, contain yttrium＞1.0%, obtained gratifying result.
Compared with prior art, the present invention is owing to the anti-association collection effect of having avoided additive usually to have, therefore in certain extraction equipment, can improve the quality of products and yield, simplify extraction system simultaneously, reduced production cost, created good hygienic condition.
Embodiment:
Heavy rare-earth oxide is used dissolving with hydrochloric acid, and the allotment rare earth concentration is 0.8～1.0M, PH2～3.Organic phase preparation: industrial complexing naphthenic acid or industrial degreasing naphthenic acid 1: 3 are by volume mixed with industrial kerosene, then with the deironing technical hydrochloric acid solution washing of the about 2N of concentration 2～3 times, use salt-free water washing again, the organic phase handled well adopts the industrial ammonia saponification to about the 0.6N.
Adopt multistage (tandem) extraction equipment, carry out cascade extraction and separate (seeing accompanying drawing), obtain pure yttrium solution in extraction section, obtain containing the extremely low earth solution of yttrium at stripping section, it is about 2 that above-mentioned two kinds of solution are allocated PH respectively, oxalic acid precipitation, filtration, calcination in 800～850 ℃ of retort furnaces, to make purity be 99.95% yttrium oxide product and contain the extremely low rare earth oxide of yttrium.
Shown in the raw material table composed as follows:
Raw material is formed Dy 2O 3Ho 2O 3Er 2O 3Tm 2O 3Yb 2O 3Lu 2O 3Y 2O 3
Composition (%) 12.47 2.29 6.02 1.26＜0.3 1.36 76.08
Product purity sees the following form:
Rare earth impurities Nd 2O 3Sm 2O 3Gd 2O 3Tb 4O 7Dy 2O 3Yb 2O 3Er 2O 3
Content (%)＜0.01＜0.01＜0.0033＜0.01＜0.0052＜0.0015＜0.019

Claims (2)

1, a kind of fractionation extraction preparation method of yttrium oxide, engraving the uncommon of  with the rare earth chlorine  that contains yttrium sends bald the gulping down in the tree of heaven curtain ⒚ river of not barking to press and smooth pupa such as alcohol mixture or isooctyl alcohol, phenol, benzene, phosphoric acid fat ...) composition ternary extraction system, the cascade extraction separating yttrium, it is characterized in that under the situation that does not add any additives, adopt naphthenic acid and two yuan of extraction systems of kerosene, carry out extracting and separating.
2, according to the described separation method of claim 1, it is characterized in that naphthenic acid and kerosene are with 1 in described two yuan of extraction systems: the 3(volume ratio) mix.
CN87106846A 1987-10-08 1987-10-08 The fractional-distillation extraction of yttrium oxide Pending CN1032327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN87106846A CN1032327A (en) 1987-10-08 1987-10-08 The fractional-distillation extraction of yttrium oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN87106846A CN1032327A (en) 1987-10-08 1987-10-08 The fractional-distillation extraction of yttrium oxide

Publications (1)

Publication Number Publication Date
CN1032327A true CN1032327A (en) 1989-04-12

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Family Applications (1)

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CN87106846A Pending CN1032327A (en) 1987-10-08 1987-10-08 The fractional-distillation extraction of yttrium oxide

Country Status (1)

Country Link
CN (1) CN1032327A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102851502A (en) * 2012-04-26 2013-01-02 广州有色金属研究院 Method for extracting and separating beryllium
CN105543476A (en) * 2015-12-24 2016-05-04 广西师范大学 Mixed extraction agents used for separating Y and method for extracting and separating Y from rare earth feed liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102851502A (en) * 2012-04-26 2013-01-02 广州有色金属研究院 Method for extracting and separating beryllium
CN105543476A (en) * 2015-12-24 2016-05-04 广西师范大学 Mixed extraction agents used for separating Y and method for extracting and separating Y from rare earth feed liquid
CN107604162A (en) * 2015-12-24 2018-01-19 广西师范大学 A kind of mixed extractant for separating yttrium

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