CN1026215C - Preparation process of magnetic activated carbon - Google Patents
Preparation process of magnetic activated carbon Download PDFInfo
- Publication number
- CN1026215C CN1026215C CN90106471A CN90106471A CN1026215C CN 1026215 C CN1026215 C CN 1026215C CN 90106471 A CN90106471 A CN 90106471A CN 90106471 A CN90106471 A CN 90106471A CN 1026215 C CN1026215 C CN 1026215C
- Authority
- CN
- China
- Prior art keywords
- magnetic
- activated carbon
- gac
- hours
- time
- 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.)
- Expired - Fee Related
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- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- VBIXEXWLHSRNKB-UHFFFAOYSA-N ammonium oxalate Chemical compound [NH4+].[NH4+].[O-]C(=O)C([O-])=O VBIXEXWLHSRNKB-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 3
- 239000010941 cobalt Substances 0.000 claims abstract description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000002594 sorbent Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 6
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 239000003610 charcoal Substances 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 235000003891 ferrous sulphate Nutrition 0.000 description 3
- 239000011790 ferrous sulphate Substances 0.000 description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
A preparation method of activated carbon for an adsorbent is characterized by comprising the following preparation steps: 1) immersing activated carbon into salt solution of iron, cobalt, nickel and rare earth elements; 2) drying at 90-120 deg.C for 2 hr; 3) then immerging the mixture into ammonium oxalate solution; 4) drying at 90-120 deg.C for 2 hr; 5) introducing H at the temperature of 600-1200 DEG C2Or N2And the time is 2 hours, the preparation process of the magnetic activated carbon provided by the invention ensures that the interior of the activated carbon also has magnetism, and the adsorption performance of the activated carbon is not reduced.
Description
The invention provides a kind of preparation method of magnetic charcoal.
Someone once adopted the agglutinating method, promptly with binding agent magnetic powder was bonded on the activated carbon surface, utilized it to adsorb gold, but this method exists following shortcoming:
(1) just glued magnetic from the teeth outwards, and gac inside does not have magnetic, in case broken, gac has just lost magnetic;
(2) a large amount of binding agents can be blocked in activated carbon surface, its absorption property is descended greatly, so this method are difficult to obtain practical application.
The preparation technology who the purpose of this invention is to provide a kind of magnetic active carbon makes gac inside also have magnetic, and does not reduce its absorption property.
Magnetic active carbon preparation method provided by the invention is characterized in that preparation process is as follows:
(1) activated carbon is immersed in the salts solution of iron, cobalt, nickel and rare earth element;
(2) then with its taking-up, in 90-120 ℃ of oven dry;
(3) be immersed in again in the basic solutions such as ammonium oxalate;
(4) with its taking-up, in 90-120 ℃ of oven dry;
(5) after the oven dry again under 600-1200 ℃ temperature, logical H
2Gas or N
2Gas 1-2 hour.In addition, if feed N
2Gas needs also to feed simultaneously oxygen containing atmosphere.
Provide embodiment below the present invention is described in detail in detail.
Embodiment: a kind of oxide type magnetic charcoal
Ferrous sulfate is soluble in water, be heated to 60 ℃, make its dissolving, be made into the aqueous solution, again gac is immersed in the solution, with the gac oven dry, bake out temperature is 110 ℃ then, the time is 2 hours, will have FeSO again
4Gac be immersed in the ammonium oxalate solution, its reaction formula is:
Taking-up is soaked with Fe
2C
2O
4Gac, again with its oven dry (bake out temperature is 120 ℃), obtain the oxide compound of iron thus, at last it is fed N under 1200 ℃ of temperature
2And oxygen, handled 2 hours.
2 one kinds of composite oxides magnetic of embodiment charcoal
At first 50% ferrous sulfate, 25% manganous sulfate, 25% zinc sulfate are made into the aqueous solution; be heated to 60 ℃, make its dissolving, gac is immersed in the solution; then gac is dried; bake out temperature is 100 ℃, and the time is 2 hours, puts it in the stove again; be heated to 1200 ℃; aerating oxygen is gone back in logical nitrogen protection simultaneously, promptly obtains compound oxide type magnetic charcoal after the taking-up.
3 one kinds of metal mold magnetic of embodiment charcoal
At first that ferrous sulfate is soluble in water, be heated to 60, make its dissolving, gac is immersed in the solution; then it is dried under 110 ℃ of temperature, the time is 2 hours, it is inserted in the stove again, logical hydrogen shield; be heated to 1200 ℃, be incubated 1 hour, promptly obtain metal mold magnetic charcoal.By the prepared magnetic active carbon of the present invention, have the following advantages:
1, the particle on the thousands of Izod right side, magnetic substance is uniformly distributed in the gac, and promptly magnetic is evenly distributed in gac, outer among, even a year golden charcoal is ground into fine powder and still can has magnetic, therefore magnetic charcoal provided by the present invention has excellent suction gold characteristic.
2, Magnitizing method is simple, has higher magnetic after the tax magnetic treatment, and the unit weight saturation magnetization reaches σ s＞1～10AM
2/ kg, thus help the magnetic control process.
3, the magnetic substance consumption is less, but really makes gac demonstrate stronger magnetic.
4, the magnetic that magnetic active carbon had is soft magnetic property, and promptly gac itself can not be bonded on the iron equipment, can only be sucted by permanent magnetism or electromagnetic field, is suitable for use as dressing agent.
5, the magnetic substance aboundresources of preparation magnetic active carbon is with low cost, can be widely used among the industry.
Above-mentioned magnetic charcoal is used for gold extracts, make the rate of recovery of gold improve 35%, magnetic charcoal provided by the present invention also can be widely used in the extraction of other metallic ore except that being used for the gold extraction.
Claims (2)
1, a kind of preparation method that is used for the gac of sorbent material, it is as follows to it is characterized in that producing step:
1) gac is immersed in the salts solution of iron, cobalt, nickel and rare earth element;
2) oven dry, temperature are 90-120, time, 2 hours;
3) be immersed in the ammonium oxalate solution again;
4) oven dry, temperature are 90-120 ℃ again, 2 hours time,
5) under 600-1200 ℃ temperature, logical H
2Or N
2, the time is 2 hours.
2,, it is characterized in that logical N according to the described preparation method of claim 1
2Also to feed oxygen containing atmosphere in the time of gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90106471A CN1026215C (en) | 1990-12-13 | 1990-12-13 | Preparation process of magnetic activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90106471A CN1026215C (en) | 1990-12-13 | 1990-12-13 | Preparation process of magnetic activated carbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1062302A CN1062302A (en) | 1992-07-01 |
| CN1026215C true CN1026215C (en) | 1994-10-19 |
Family
ID=4880110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90106471A Expired - Fee Related CN1026215C (en) | 1990-12-13 | 1990-12-13 | Preparation process of magnetic activated carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026215C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386141C (en) * | 2005-07-20 | 2008-05-07 | 上海自来水市北科技有限公司 | Composite absorption material for removing arsenic from water and its prepn. method |
| AR058682A1 (en) | 2005-10-15 | 2008-02-20 | Bhp Billiton Sa Ltd | A METHOD FOR RECOVERING A METAL FROM A BIO-LIXIVIATION SOLUTION OF A BIO-LIXIVIATION REACTOR |
| CN101818338B (en) * | 2010-04-15 | 2012-05-23 | 东北林业大学 | Method for preparing nickel radical magnetic active carbon by non-palladium activation method |
| CN104034562B (en) * | 2014-05-05 | 2018-09-14 | 福建紫金矿冶测试技术有限公司 | Gold loaded carbon chemical constituent standard substance and preparation method |
| CN105214736A (en) * | 2014-06-28 | 2016-01-06 | 宋雪梅 | A kind of preparation method of magnetic catalyst carrier |
| CN108187616A (en) * | 2017-12-29 | 2018-06-22 | 刘威林 | A kind of special magnetic charcoal of gold and silver and its manufacturing method |
-
1990
- 1990-12-13 CN CN90106471A patent/CN1026215C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1062302A (en) | 1992-07-01 |
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