CN1072165A - Directly produce the method for RE microbial fertilizer by the ion type rareearth mother liquor - Google Patents
Directly produce the method for RE microbial fertilizer by the ion type rareearth mother liquor Download PDFInfo
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- CN1072165A CN1072165A CN 91110669 CN91110669A CN1072165A CN 1072165 A CN1072165 A CN 1072165A CN 91110669 CN91110669 CN 91110669 CN 91110669 A CN91110669 A CN 91110669A CN 1072165 A CN1072165 A CN 1072165A
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- rare earth
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Abstract
The present invention relates to the preparation method of the little fertilizer of alkene soil, is raw material with ion adsorption type rare earth ore especially, directly produces the method for agricultural rare-earth element.Method of the present invention is made up of following steps: (one) gets the weathering crust raw ore that the mining area contains the rare earth, (NH with 1～2%
4)
2SO
4Leaching obtains containing rare earth mother solution (being sulphur ammonium rare earth); (2) add (NH at above-mentioned rare earth mother solution
4)
2CO
3, make carbonic acid hydrogen-oxygen rare-earth precipitation, supernatant liquor discharging; (3) in the carbonic acid hydrogen-oxygen rare earth that step (two) makes, press rare earth oxide amount (REO) 2～3.5 times, add HNO
3, make the agricultural liquid rare-earth nitrate trace element fertilizer.
Description
The present invention relates to the preparation method of RE microbial fertilizer, is raw material with ion adsorption type rare earth ore especially, directly produces the method for agricultural rare-earth element.
Agricultural rare-earth element can increase output in agriculture production, improve the quality, the effect that obtains is admitted by society, the production method of farmland RE microbial fertilizer generally is to adopt the rare earth ore concentrate of mineral type at present, through acid molten-abstraction and type-reverting-deironing, grouping-light rare earths acid be molten-carbonate deposition-nitric acid dissolve forms rare earth nitrate solution, promptly obtain the little fertilizer of rare-earth liquid, become solid, be the little fertilizer of rare earth solid through concentrating under reduced pressure.This technological process of production is comparatively numerous and diverse, and because the employing rare earth ore concentrate is a raw material, wherein contained rare earth element is comparatively dull, and few to making the agricultural rare-earth element of making contain rare earth element, concentration is also relatively low.
" the rare metal metallurgy " (Li Honggui of Zhongnan Polytechnic Univ chief editor, nineteen ninety) reported " processing of ion adsorption type rare earth ore " for the 240th page to 243 pages, its technology is through 7%NaCl or 1～2%(NH4) 2SO4 drip washing with raw ore, the clear liquor of drip washing adds saturated H2C2O4 or NH4HCO3 precipitation, filter cake is through washing, dry, burn, get rare earth oxide after filtering, after filtrate added NaOH or NH4OH regeneration, clear liquid returned drip washing.The purpose of above-mentioned technology art is to be raw material with ion absorption type rare-earth mineral, produces rare earth oxide.
Chinese patent CN1038065A(application number: 89102377.1) disclosing a kind of " stocking impregnation technology for ion-adsorption type of rare-earth minerals ", is the rare earth element that utilizes in the heap method leaching raw ore.The raw ore of packing on the stacking yard of constructing is built into ore deposit heap, pour into from the heap top soak the ore deposit agent solution, through naturally osmotic, flow out leach liquor from the canal that confluxes at the heap end.Leach finishing to carry out behind the removal tailings secondary builds heap and soaks.Chinese patent CN1048564A(application number: 89104757.3) disclose a kind of " ionic type rare earth ore in-situ lixiviation processing ", comprise: the explosion and crushing ore body, inject operations such as ore leachate, material liquid pump pumping in ore body surface fluid injection or boring, it is characterized in that at ion type rareearth ore bottom Drilling liquid collecting hole, install liquid collecting tube in the liquid collecting hole and be connected with vacuum system.The disclosed content final purpose of the document is still produces rare earth oxide.The technology of directly producing RE microbial fertilizer by ion adsorption type rare earth ore do not appear in the newspapers as yet to.
The objective of the invention is to overcome the deficiency of prior art, it is raw material that a kind of employing ion adsorption type rare earth ore is provided, and directly produces the method for agricultural rare-earth element.
Method of the present invention is made up of following steps:
(1), get the weathering crust raw ore that the mining area contains rare earth, (NH4) 2SO4 leaching with 1～2% obtains containing rare earth mother solution (being sulphur ammonium rare earth);
(2), add (NH4) 2CO3, make carbonic acid hydrogen-oxygen rare-earth precipitation, supernatant liquor discharging at above-mentioned rare earth mother solution;
(3), in the carbonic acid hydrogen-oxygen rare earth that step (two) makes, press rare earth oxide amount (REO) 2～3.5 times, add HNO3, make the agricultural liquid rare-earth nitrate trace element fertilizer.
The pH value of the made sulphur ammonium rare earth liquid that reaches of step () is looked the mining area situation and be can be 3.5～6.0, when pH value 4.8 when following, impurity such as iron, aluminium is also leached, at this moment at first removal of impurities, to reduce the consumption of (NH4) 2CO3, the removal of impurities operation adds 1: 1 liquefied ammonia by 0.05% of mother liquor amount, adds the rear impurity precipitation.Step (three) can be carried out at normal temperatures, also can heat to boiling, with accelerate dissolution.In step (three), if the add-on of HNO3 is excessive, can be directed at the increase cost, reduce product middle-weight rare earths content simultaneously again.
The method of the invention technology is simple, operation easily, and prepared product-agricultural rare-earth nitrate trace element fertilizer doubles above than the like product concentration of selling on the market, thus consumption is few, and price is low.
Be embodiments of the invention below:
Get Longchuan County, Yunnan dragon peace and contain rare earth granite weathering crust raw ore, with 1～2%(NH
4)
2SO
4Soak the ore deposit and obtain sulphur ammonium rare earth mother solution, extraordinarily go into (NH4) 2CO3 according to 3.5 of sulphur ammonium rare earth mother solution content of rare earth, make pulpous state carbonic acid hydrogen-oxygen rare-earth precipitation, supernatant liquor is abandoned it, extraordinarily goes into HNO3 by 2.15 of rare earth oxide amount, boils to boiling, and keeps more than 10 minutes.Obtain the agricultural liquid rare-earth nitrate trace element fertilizer, for ease of transportation, but concentrating under reduced pressure makes it to become the solid agricultural rare-earth element.
Claims (3)
1, a kind ofly directly produce the method for RE microbial fertilizer, form by following steps by the ion type rareearth mother liquor:
(1), gets the weathering crust raw ore that the mining area contains rare earth, (NH with 1～2%
4)
2SO
4Leaching obtains containing rare earth mother solution (being sulphur ammonium rare earth);
(2), add (NH at above-mentioned rare earth mother solution
4)
2CO
3, make carbonic acid hydrogen-oxygen rare-earth precipitation, supernatant liquor discharging;
It is characterized in that:
(3), in the carbonic acid hydrogen-oxygen rare earth that step (two) makes, press rare earth oxide amount (REO) 2～3.5 times, add HNO
3, make the agricultural liquid rare-earth nitrate trace element fertilizer.
2, in accordance with the method for claim 1, it is characterized in that step (three) carries out at normal temperatures.
3, in accordance with the method for claim 1, it is characterized in that step (three) carries out being heated under the boiling state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110669 CN1072165A (en) | 1991-11-08 | 1991-11-08 | Directly produce the method for RE microbial fertilizer by the ion type rareearth mother liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110669 CN1072165A (en) | 1991-11-08 | 1991-11-08 | Directly produce the method for RE microbial fertilizer by the ion type rareearth mother liquor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1072165A true CN1072165A (en) | 1993-05-19 |
Family
ID=4910210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91110669 Pending CN1072165A (en) | 1991-11-08 | 1991-11-08 | Directly produce the method for RE microbial fertilizer by the ion type rareearth mother liquor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1072165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645378A (en) * | 2016-10-18 | 2017-05-10 | 江西理工大学 | Method for identifying weathering degree of ion-absorbing type rare earth ores |
-
1991
- 1991-11-08 CN CN 91110669 patent/CN1072165A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645378A (en) * | 2016-10-18 | 2017-05-10 | 江西理工大学 | Method for identifying weathering degree of ion-absorbing type rare earth ores |
| CN106645378B (en) * | 2016-10-18 | 2019-02-26 | 江西理工大学 | A method of identifying ion adsorption type rare earth ore rate of decay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |