CN1035448A - The ore-dressing technique of FLOTATION SEPARATION bastnaesite and monazite - Google Patents
The ore-dressing technique of FLOTATION SEPARATION bastnaesite and monazite Download PDFInfo
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- CN1035448A CN1035448A CN 88101129 CN88101129A CN1035448A CN 1035448 A CN1035448 A CN 1035448A CN 88101129 CN88101129 CN 88101129 CN 88101129 A CN88101129 A CN 88101129A CN 1035448 A CN1035448 A CN 1035448A
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- bastnaesite
- monazite
- flotation
- concentrate
- dressing technique
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Abstract
Adopt hydroximic acid collecting agent, sodium metasilicate and general foaming agent (as keto-alcohol oil), from low-grade bastnaesite of Bayan Obo and monazite mixed material, sub-elect high-grade bastnaesite and monazite bulk concentrate, adopt then that phthalic anhydride hydrolysis or phthalic acid half are saponified to separate bastnaesite and monazite with aluminium salt, obtain respectively the purpose rare-earth mineral to the total rare earth (TRE) mineral content greater than bastnaesite more than 95% (REO69.68%) and monazite concentrate (REO66.03%), technological process is simple, efficiency of separation height.Harmful element content is lower than sewage drainage standard in the tailing water.
Description
The invention belongs to mineral engineering RE mineral floating separating technology.
Bastnaesite separates with monazite, adopts floatation usually.The key of floatation is the selection and the medium pH value of floating agent.It is collecting agent with the sulfosuccinate that Japan equals 1984 to the well taste, is inhibitor with sodium metasilicate, aluminium chloride, with 5
#Pine tar is a foaming agent, at pulp PH value 2.89～3.88,53～59 ℃ of slurry temperatures, under the condition of pulp density 7.5%, be raw material, carried out sorting bastnaesite small-scale test with baiyuneboite low-grade [Ce+La+Pr+Nd 9.21%] ore, acquisition contains Ce+La+Pr+Nd 59.76%, the bastnaesite concentrate of yield 18.68%, but do not carry out continuous extension trial and do not obtain monazite concentrate No. the 3rd, Japan's " flotation " the 31st volume [220～221 pages, 1984].
The objective of the invention is to solve separating of bastnaesite and monazite, it is simple to seek a kind of technology, and cost is low, and efficiency of separation height is suitable for the floatation process of suitability for industrialized production.
Main points of the present invention are: (1) adopts hydroximic acid collecting agent, sodium metasilicate and general foaming agent (as 210 keto-alcohol wet goods), with mineral such as low-grade bastnaesite and monazites is raw material, under flotation pulp pH value 8.5～9.5 and normal temperature condition, carry out separating of rare-earth mineral and impure mineral, obtain high-grade bastnaesite and monazite (3: 2) bulk concentrate.
(2) saponified with phthalic anhydride heating hydrolysis or phthalic acid half, saponification pH value 3.5～5, as the bastnaesite collecting agent, with aluminium salt (alum, aluminum sulfate or aluminium chloride) as monazite inhibitor, under flotation medium pH value 4～5.5 and normal temperature condition, be that raw material carries out separating of bastnaesite and monazite will put 1 high-grade RE concentrate.
According to main points (1), mainly be to utilize sodium metasilicate to suppress impure mineral, but excessive rare-earth mineral also had inhibitory action; Flotation temperature is too high, and the apatite float-amount increases, and influences concentrate grade; Flotation medium pH value 8.5～9.5 separating effects are best.
According to main points (2), phthalic anhydride heating hydrolysis or phthalic acid half saponification, control saponification pH value 3.5～5 its objective is and utilizes the collecting effect of hydrogen phthalate radical ion to bastnaesite, guarantees that its saponified middle hydrogen phthalate radical ion content is greater than 75%; Aluminium salt consumption is wanted suitably, and excessive also have inhibitory action to bastnaesite, influences separating effect; The flotation medium pH value is too high or too low, and separating effect is poor.
The present invention compared with the prior art, technology is simple, medicament kind is few, and is inexpensive, good separation effect.And can obtain simultaneously the purpose rare-earth mineral to the total rare earth (TRE) mineral content greater than bastnaesite concentrate more than 95% and monazite concentrate, economic benefit and obvious social benefit, harmful element content is lower than sewage drainage standard in the tailing water.
The inventor had once carried out following test: with the baiyuneboite raw material, and 29.18% ,-0.074% millimeter grain size content 95.52% of rare earth grade, rare-earth mineral monomer 77.05%; Raw material mineral composition: bastnaesite 23.71%, monazite 17.38%, fluorite 22.23%, apatite 7.09%, barite 10.00%, magnetic iron ore 2.62%, hematite-limonite 10.86%, dolomite, calcite 2.94%, stone, feldspar, quartz 2.89% in achmatite achmite, the sodium, other is 0.28% years old.Rare-earth mineral separates the employing hydroximic acid collecting agent with impure mineral, sodium metasilicate and 210 foaming agents, in PH8.5～9.5, pulp density 40～45%, 30～35 ℃ of temperature, at 2A, process one roughing in the 1A flotation device, triple cleaning, be enriched to rare earth grade (REO) 65%, bastnaesite and monazite ratio 3: 2 are used phthalic anhydride heating hydrolysis saponified (saponification pH value 3.5～5) and alum, then under pH value 4.5～5 and normal temperature condition, adopting 12 liters of flotation devices to separate roughly selects, after recleaning and secondary are scanned, obtain bastnaesite concentrate grade (REO) 69.68% respectively, bastnaesite is to total rare earth (TRE) mineral content 95.59%; Monazite concentrate grade (REO) 66.03%, monazite in the open circuit flowage structure, obtain the detached job yield respectively more than 60% to rare-earth mineral total amount 96.47%.
With bastnaesite and the monazite concentrate that the present invention produces, satisfied the quality requirement of the applications such as rare earth ore concentrate smelting and production bastnaesite polishing powder fully.
Claims (5)
1, the ore-dressing technique of FLOTATION SEPARATION bastnaesite and monazite, it is characterized in that adopting hydroximic acid collecting agent, sodium metasilicate and general foaming agent (as keto-alcohol oil), with mineral such as low-grade bastnaesite and monazites is raw material, through one roughing, triple cleaning, obtain high-grade bastnaesite and monazite (3: 2) bulk concentrate, use phthalic anhydride heating hydrolysis or phthalic acid half saponification resultant as the bastnaesite collecting agent then, aluminium salt is as monazite inhibitor, roughly select through first separation, recleaning and secondary are scanned, and obtain bastnaesite concentrate and monazite concentrate respectively.
2, according to the described ore-dressing technique of claim 1, when it is characterized in that adopting hydroximic acid, sodium metasilicate and general foaming agent flotation of high-grade bastnaesite and monazite bulk concentrate, flotation medium pH value 8.5～9.5, flotation temperature are normal temperature.
3, according to the described ore-dressing technique of claim 1, when it is characterized in that phthalic anhydride heating hydrolysis or phthalic acid carry out half saponification, the saponification pH value is 3.5～5.
4, according to the described ore-dressing technique of claim 1, it is characterized in that bastnaesite and monazite separating medium pH value are 4～5.5, flotation temperature is a normal temperature.
5, according to the described ore-dressing technique of claim 1, it is characterized in that described monazite inhibitor aluminium salt, be meant alum, aluminum sulfate or aluminium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88101129 CN1012469B (en) | 1988-02-29 | 1988-02-29 | Mineral separating technology for separating fcce ore and monazite with floation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88101129 CN1012469B (en) | 1988-02-29 | 1988-02-29 | Mineral separating technology for separating fcce ore and monazite with floation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035448A true CN1035448A (en) | 1989-09-13 |
| CN1012469B CN1012469B (en) | 1991-05-01 |
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ID=4831648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88101129 Expired CN1012469B (en) | 1988-02-29 | 1988-02-29 | Mineral separating technology for separating fcce ore and monazite with floation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012469B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474597B (en) * | 2009-01-23 | 2011-09-07 | 武汉工程大学 | Floatation separation method for mengite and hamartite in misch metal ore concentrate |
| CN101444761B (en) * | 2009-01-04 | 2011-11-30 | 武汉工程大学 | A floatation separation method of hamartite misch metal mine containing high content mengite |
| CN102274796A (en) * | 2011-07-28 | 2011-12-14 | 内蒙古科技大学 | Beneficiation method for purifying bastnaesite concentrate |
| CN102357421A (en) * | 2011-07-28 | 2012-02-22 | 内蒙古科技大学 | Method for removing calcium from high-calcium rare earth concentrated ore |
| CN106563561A (en) * | 2016-08-31 | 2017-04-19 | 李梅 | Method of improving rare earth grade of hybrid rare earth ores |
| CN110449256A (en) * | 2019-07-31 | 2019-11-15 | 中国恩菲工程技术有限公司 | The beneficiation method of bastnaesite |
| CN110813540A (en) * | 2019-10-24 | 2020-02-21 | 商洛学院 | Collecting agent composition for flotation and recovery of monazite from zircon heavy sand |
| CN113695086A (en) * | 2021-08-20 | 2021-11-26 | 昆明理工大学 | Flotation separation method of bastnaesite and barite |
| CN115591676A (en) * | 2022-10-31 | 2023-01-13 | 湖南中核金原新材料有限责任公司（Cn） | Method for removing organic agents on surface of monazite flotation concentrate by thermally activating persulfate |
-
1988
- 1988-02-29 CN CN 88101129 patent/CN1012469B/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101444761B (en) * | 2009-01-04 | 2011-11-30 | 武汉工程大学 | A floatation separation method of hamartite misch metal mine containing high content mengite |
| CN101474597B (en) * | 2009-01-23 | 2011-09-07 | 武汉工程大学 | Floatation separation method for mengite and hamartite in misch metal ore concentrate |
| CN102274796A (en) * | 2011-07-28 | 2011-12-14 | 内蒙古科技大学 | Beneficiation method for purifying bastnaesite concentrate |
| CN102357421A (en) * | 2011-07-28 | 2012-02-22 | 内蒙古科技大学 | Method for removing calcium from high-calcium rare earth concentrated ore |
| CN106563561A (en) * | 2016-08-31 | 2017-04-19 | 李梅 | Method of improving rare earth grade of hybrid rare earth ores |
| CN110449256A (en) * | 2019-07-31 | 2019-11-15 | 中国恩菲工程技术有限公司 | The beneficiation method of bastnaesite |
| CN110813540A (en) * | 2019-10-24 | 2020-02-21 | 商洛学院 | Collecting agent composition for flotation and recovery of monazite from zircon heavy sand |
| CN110813540B (en) * | 2019-10-24 | 2021-11-26 | 商洛学院 | Collecting agent composition for flotation and recovery of monazite from zircon heavy sand |
| CN113695086A (en) * | 2021-08-20 | 2021-11-26 | 昆明理工大学 | Flotation separation method of bastnaesite and barite |
| CN113695086B (en) * | 2021-08-20 | 2022-07-15 | 昆明理工大学 | Flotation separation method of bastnaesite and barite |
| CN115591676A (en) * | 2022-10-31 | 2023-01-13 | 湖南中核金原新材料有限责任公司（Cn） | Method for removing organic agents on surface of monazite flotation concentrate by thermally activating persulfate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1012469B (en) | 1991-05-01 |
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