CN117210706A - Method for reducing antimony oxide by hydrogen - Google Patents
Method for reducing antimony oxide by hydrogen Download PDFInfo
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- CN117210706A CN117210706A CN202310986773.0A CN202310986773A CN117210706A CN 117210706 A CN117210706 A CN 117210706A CN 202310986773 A CN202310986773 A CN 202310986773A CN 117210706 A CN117210706 A CN 117210706A
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- hydrogen
- antimony oxide
- argon
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- 229910000410 antimony oxide Inorganic materials 0.000 title claims abstract description 55
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000001257 hydrogen Substances 0.000 title claims abstract description 51
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 51
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 29
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052786 argon Inorganic materials 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 35
- 238000001035 drying Methods 0.000 claims abstract description 19
- 230000009467 reduction Effects 0.000 claims abstract description 19
- 239000012798 spherical particle Substances 0.000 claims abstract description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000003723 Smelting Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000006227 byproduct Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000011133 lead Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 7
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 230000035484 reaction time Effects 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 abstract description 2
- 238000009853 pyrometallurgy Methods 0.000 abstract description 2
- 229910052787 antimony Inorganic materials 0.000 description 12
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 12
- 229910052785 arsenic Inorganic materials 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- LJCFOYOSGPHIOO-UHFFFAOYSA-N antimony pentoxide Chemical compound O=[Sb](=O)O[Sb](=O)=O LJCFOYOSGPHIOO-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 new energy batteries Substances 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 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)
Abstract
The invention provides a method for reducing antimony oxide by hydrogen, and relates to the technical field of nonferrous metal pyrometallurgy. The method for reducing antimony oxide by hydrogen comprises the following specific steps: s1, adding deionized water into antimony oxide powder, and preparing spherical particles with different particle diameters; s2, placing the manufactured antimony oxide powder particles into a drying box for drying treatment; s3, placing the dried spherical particles into a furnace, vacuumizing, filling argon, removing air in the furnace, filling the argon to enable the pressure in the furnace to reach a certain pressure, maintaining the pressure and heating; and S4, when the temperature in the furnace is increased to the required temperature, discharging argon, simultaneously charging hydrogen into the furnace, discharging hydrogen after the reaction is finished, charging argon for pressure maintaining and temperature reduction, and cooling to room temperature, and taking out materials for detection. The invention takes hydrogen as the reducing agent, clean and high-efficiency reduces Sb in the smelting process of nonferrous metals such as lead, copper, nickel and the like 2 O 3 More than or equal to 30 percent of oxidation byproducts.
Description
Technical Field
The invention relates to the technical field of nonferrous metal pyrometallurgy, in particular to a method for reducing antimony oxide by hydrogen.
Background
Antimony is a scarce national strategic resource compared with rare earth, is called industrial masterwork oil, and plays a key role in important fields such as flame retardants, new energy batteries, semiconductors, national defense weapons, catalysts and the like. However, the global antimony ore resources are extremely rare and face to resource exhaustion, and the nonferrous metallurgy process of lead, copper, nickel and the like generates a Sb-containing alloy 2 O 3 Antimony oxide powder with the content of more than or equal to 30 percent is a precious raw material for recycling antimony. However, the traditional carbon thermal reduction technology of the antimonic oxide powder mainly uses the difference of reduction characteristics of oxides such as antimony, arsenic, lead, silicon, iron and the like and carbon to carry out high-temperature reduction at 1000-1200 ℃ to reduce the oxides such as antimony, arsenic, lead and the like to form metallic antimony, silicon, iron and the like oxidesThe product and the slag former form slag bubbles. The carbon thermal reduction technology of the antimony oxide powder has high energy consumption, low reduction strength, low thermal efficiency and a period of 20 days, and each time when producing 1 ton of antimony, 0.4 ton of high-quality coal is required, and the treatment capacity is only 0.5-0.8 t/(m) 2 D) thermal efficiency as low as 15% -30%; generating a large amount of CO 2 、SO 2 ，SO 2 The concentration of the tail gas is only 0.3-0.8%, and the tail gas can be simply treated by a lime absorption method, so that the tail gas has serious environmental pollution. The acid dissolving reduction and alkali-acid combined reduction technology is to dissolve, reduce and replace antimony oxide by using reagents such as strong acid, strong alkali, iron powder and the like to prepare sponge antimony, and has high conversion degree requirement, difficult effective control of reaction process, high equipment corrosion prevention requirement, difficult purification of leaching solution, low recycling rate, serious water consumption, large output of waste water and waste residue and difficult treatment.
The existing technology of antimony oxide powder reduction conversion has the common problems of low efficiency, heavy pollution, difficult treatment of high-arsenic dangerous waste residues and the like, is not in line with the development trend of 'double carbon' targets and clean production, and severely restricts the green high-efficiency conversion of antimony oxide and the high-quality development of industry.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a method for reducing antimony oxide by hydrogen, which solves the common problems of low efficiency, heavy pollution, difficult treatment of high-arsenic dangerous waste residues and the like in the prior art of antimony oxide powder reduction and conversion.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: a method for reducing antimony oxide by hydrogen comprises the following specific steps:
s1, adding deionized water into antimony oxide powder, and preparing spherical particles with different particle diameters;
s2, placing the manufactured antimony oxide powder particles into a drying box for drying treatment;
s3, placing the dried spherical particles into a furnace, vacuumizing, filling argon, removing air in the furnace, filling the argon to enable the pressure in the furnace to reach a certain pressure, maintaining the pressure and heating;
and S4, when the temperature in the furnace is increased to the required temperature, discharging argon, simultaneously charging hydrogen into the furnace, discharging hydrogen after the reaction is finished, charging argon for pressure maintaining and temperature reduction, and cooling to room temperature, and taking out materials for detection.
Preferably, the antimony oxide powder is Sb-containing produced in the smelting process of nonferrous metals such as lead, copper, nickel and the like 2 O 3 More than or equal to 30 percent of oxidation byproducts.
Preferably, the diameter of the spherical particles in the step S1 is 1mm-100mm.
Preferably, the drying temperature in the S2 is 50-200 ℃ and the drying time is 1-48 h.
Preferably, the purity of the argon in the step S3 is more than or equal to 99.999 percent, the times of vacuumizing and argon filling are 1-10 times, and the pressure of filling the argon into the furnace body is 0-0.3MPa.
Preferably, the purity of the hydrogen in the S4 is more than or equal to 99.999%, the temperature is 100-1200 ℃, the reaction time is 10-1500 min, the pressure is 0-0.3MPa after the hydrogen is filled into the furnace body or the hydrogen carrying flow is 1-400 ml/min, and the pressure of the argon for maintaining pressure and reducing temperature is 0-0.3MPa.
(III) beneficial effects
The invention provides a method for reducing antimony oxide by hydrogen. The beneficial effects are as follows:
1. the invention takes hydrogen as the reducing agent, clean and high-efficiency reduces lead, copper, nickel and other nonferrous metals to produce the alloy containing Sb in the smelting process 2 O 3 More than or equal to 30 percent of oxidation byproducts.
2. The method is green and efficient, is simple and convenient to operate, can clean and efficiently reduce the antimony oxide powder, solves the common problems of low efficiency, heavy pollution, difficult treatment of high-arsenic dangerous waste residues and the like in the existing antimony oxide reduction process, and is beneficial to realizing the clean and efficient treatment of the antimony oxide powder in the nonferrous metal smelting industries such as lead, copper, nickel and the like.
Drawings
FIG. 1 is a flow chart of the process for reducing antimony oxide by hydrogen according to the invention;
FIG. 2 is an XRD pattern of the antimony oxide powder used in the examples of the invention;
FIG. 3 is an XRD pattern of 550 ℃ reduction of antimony oxide powder in example 1 of the invention;
FIG. 4 is an XRD pattern of 600℃reduction of antimony oxide powder according to example 2 of the invention;
FIG. 5 is an XRD pattern for 600℃reduction of antimony oxide powder according to example 3 of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention uses the byproduct antimony oxide powder in the lead smelting industry, the components are shown in table 1, and the phase diagram (XRD) is shown in figure 2.
TABLE 1 Components of antimony oxide powder
Embodiment one:
as shown in fig. 1 and 3, the embodiment of the invention provides a method for reducing antimony oxide by hydrogen, which comprises the following specific steps:
s1, adding deionized water into antimony oxide powder, and preparing spherical particles with different particle diameters;
s2, placing the manufactured antimony oxide powder particles into a drying box for drying treatment;
s3, placing the dried spherical particles into a furnace, vacuumizing, filling argon, removing air in the furnace, filling the argon to enable the pressure in the furnace to reach a certain pressure, maintaining the pressure and heating;
and S4, when the temperature in the furnace is increased to the required temperature, discharging argon, simultaneously charging hydrogen into the furnace, discharging hydrogen after the reaction is finished, charging argon for pressure maintaining and temperature reduction, and cooling to room temperature, and taking out materials for detection.
The antimony oxide powder is Sb-containing produced in lead smelting process 2 O 3 96% of oxidation byproducts; s1, spherical particles with the diameter of 10mm; s2, drying at 110 ℃ for 8 hours; s3, argon purity is 99.999%, the times of vacuumizing and argon filling are 3 times, and the pressure of argon filling into the furnace body is 0.1MPa; and S4, the purity of the hydrogen in the step S4 is 99.999%, the temperature is 550 ℃, the reaction time is 120min, the pressure after the hydrogen is filled into the furnace body is 0.1MPa, and the pressure of the argon for maintaining pressure and reducing temperature is 0.1MPa.
When the reaction is carried out for 120min at 550 ℃ of the antimony oxide powder, the pressure in the furnace is reduced from 0.1MPa to 0.073MPa, and the hydrogen in the furnace is reduced, as shown in figure 3, the XRD spectrum of the reduced material of 550 ℃ of the antimony oxide powder shows that the antimony in the reduced material is represented by simple substance and Sb 2 O 3 In the form of (2), a portion of the antimony oxide powder is reduced by hydrogen.
Embodiment two:
as shown in fig. 1 and 4, the embodiment of the invention provides a method for reducing antimony oxide by hydrogen, which comprises the following specific steps:
s1, adding deionized water into antimony oxide powder, and preparing spherical particles with different particle diameters;
s2, placing the manufactured antimony oxide powder particles into a drying box for drying treatment;
s3, placing the dried spherical particles into a furnace, vacuumizing, filling argon, removing air in the furnace, filling the argon to enable the pressure in the furnace to reach a certain pressure, maintaining the pressure and heating;
and S4, when the temperature in the furnace is increased to the required temperature, discharging argon, simultaneously charging hydrogen into the furnace, discharging hydrogen after the reaction is finished, charging argon for pressure maintaining and temperature reduction, and cooling to room temperature, and taking out materials for detection.
The antimony oxide powder is Sb-containing produced in lead smelting process 2 O 3 96% of oxidation byproducts; s1, spherical particles with the diameter of 10mm; s2, drying at 110 ℃ for 8 hours; s3, argon purity is 99.999%, the times of vacuumizing and argon filling are 3 times, and the pressure of argon filling into the furnace body is 0.1MPa; the purity of the hydrogen in S4 is 99.999%, the temperature is 600 ℃, the reaction time is 120min, the pressure is 0.1MPa after the hydrogen is filled into the furnace body, and the argon is used for preparing the hydrogenThe pressure of the air pressure maintaining and temperature reducing is 0.1MPa.
When the antimony oxide powder reacts for 120min at 600 ℃, the pressure in the furnace is reduced from 0.1MPa to 0.062MPa, and the hydrogen in the furnace is reduced by 0.011MPa compared with the hydrogen in the furnace at 550 ℃. As shown in figure 4, the XRD pattern of the reduced material of the antimony oxide powder at 600 ℃ shows that elemental antimony exists in the reduced material, and the antimony and arsenic in the material mainly exist in the form of simple substances.
Embodiment III:
as shown in fig. 1 and 5, the embodiment of the invention provides a method for reducing antimony oxide by hydrogen, which comprises the following specific steps:
s1, adding deionized water into antimony oxide powder, and preparing spherical particles with different particle diameters;
s2, placing the manufactured antimony oxide powder particles into a drying box for drying treatment;
s3, placing the dried spherical particles into a furnace, vacuumizing, filling argon, removing air in the furnace, filling the argon to enable the pressure in the furnace to reach a certain pressure, maintaining the pressure and heating;
and S4, when the temperature in the furnace is increased to the required temperature, discharging argon, simultaneously charging hydrogen into the furnace, discharging hydrogen after the reaction is finished, charging argon for pressure maintaining and temperature reduction, and cooling to room temperature, and taking out materials for detection.
The antimony oxide powder is Sb-containing produced in lead smelting process 2 O 3 96% of oxidation byproducts; s1, spherical particles with the diameter of 10mm; s2, drying at 110 ℃ for 8 hours; s3, the purity of the argon is more than or equal to 99.999%, the times of vacuumizing and filling the argon are 3 times, and the pressure of the argon filled in the furnace body is 0.03MPa; and S4, the purity of the hydrogen in the step S4 is 99.999%, the temperature is 600 ℃, the reaction time is 120min, the hydrogen carrying flow of the hydrogen filled in the furnace body is 20ml/min, and the pressure of the argon for maintaining the pressure and reducing the temperature is 0.03MPa.
As shown in FIG. 5, the reduced material contains mainly elemental antimony and Sb under the conditions of 600 deg.C, hydrogen flow rate of 20ml/min and reduction time of 120min 2 O 3 、As 2 O 3 As, sb, and the like, compared with products with the temperature of 600 ℃, the hydrogen pressure in the furnace of 0.1MPa and the reduction time of 120min 2 O 3 And As 2 O 3 The content of (2) is more and the reduction effect is poorer.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A method for reducing antimony oxide by hydrogen, which is characterized in that: the method comprises the following specific steps:
s1, adding deionized water into antimony oxide powder, and preparing spherical particles with different particle diameters;
s2, placing the manufactured antimony oxide powder particles into a drying box for drying treatment;
s3, placing the dried spherical particles into a furnace, vacuumizing, filling argon, removing air in the furnace, filling the argon to enable the pressure in the furnace to reach a certain pressure, maintaining the pressure and heating;
and S4, when the temperature in the furnace is increased to the required temperature, discharging argon, simultaneously charging hydrogen into the furnace, discharging hydrogen after the reaction is finished, charging argon for pressure maintaining and temperature reduction, and cooling to room temperature, and taking out materials for detection.
2. The method for reducing antimony oxide by hydrogen according to claim 1, wherein: the antimony oxide powder is Sb-containing produced in the smelting process of nonferrous metals such as lead, copper, nickel and the like 2 O 3 More than or equal to 30 percent of oxidation byproducts.
3. The method for reducing antimony oxide by hydrogen according to claim 1, wherein: the diameter of the spherical particles in the step S1 is 1mm-100mm.
4. The method for reducing antimony oxide by hydrogen according to claim 1, wherein: and in the step S2, the drying temperature is 50-200 ℃ and the drying time is 1-48 h.
5. The method for reducing antimony oxide by hydrogen according to claim 1, wherein: and the purity of the argon in the S3 is more than or equal to 99.999 percent, the times of vacuumizing and argon filling are 1 to 10 times, and the pressure of filling the argon into the furnace body is 0 to 0.3MPa.
6. The method for reducing antimony oxide by hydrogen according to claim 1, wherein: the purity of the hydrogen in the S4 is more than or equal to 99.999 percent, the temperature is 100-1200 ℃, the reaction time is 10-1500 min, the pressure is 0-0.3MPa after the hydrogen is filled into the furnace body or the hydrogen carrying flow is 1-400 ml/min, and the pressure of the argon for maintaining pressure and cooling is 0-0.3MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310986773.0A CN117210706A (en) | 2023-08-07 | 2023-08-07 | Method for reducing antimony oxide by hydrogen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310986773.0A CN117210706A (en) | 2023-08-07 | 2023-08-07 | Method for reducing antimony oxide by hydrogen |
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| Publication Number | Publication Date |
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| CN117210706A true CN117210706A (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310986773.0A Pending CN117210706A (en) | 2023-08-07 | 2023-08-07 | Method for reducing antimony oxide by hydrogen |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1349041A (en) * | 1971-12-30 | 1974-03-27 | Occidental Petroleum Corp | Hydro metallurgical preparation of the oxides of antimony and antimonic acid |
| CN103173636A (en) * | 2013-03-06 | 2013-06-26 | 中南大学 | Antimony sulfide concentrate oxygen-enriched melting tank melting method |
| CN112662894A (en) * | 2020-11-17 | 2021-04-16 | 中国恩菲工程技术有限公司 | Method for producing antimony from antimony oxide powder |
| CN115627367A (en) * | 2022-10-14 | 2023-01-20 | 北京科技大学 | Method for lead and antimony co-smelting |
| CN115821064A (en) * | 2022-12-02 | 2023-03-21 | 昆明理工大学 | Low-temperature reduction method for antimony oxide |
-
2023
- 2023-08-07 CN CN202310986773.0A patent/CN117210706A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1349041A (en) * | 1971-12-30 | 1974-03-27 | Occidental Petroleum Corp | Hydro metallurgical preparation of the oxides of antimony and antimonic acid |
| CN103173636A (en) * | 2013-03-06 | 2013-06-26 | 中南大学 | Antimony sulfide concentrate oxygen-enriched melting tank melting method |
| CN112662894A (en) * | 2020-11-17 | 2021-04-16 | 中国恩菲工程技术有限公司 | Method for producing antimony from antimony oxide powder |
| CN115627367A (en) * | 2022-10-14 | 2023-01-20 | 北京科技大学 | Method for lead and antimony co-smelting |
| CN115821064A (en) * | 2022-12-02 | 2023-03-21 | 昆明理工大学 | Low-temperature reduction method for antimony oxide |
Non-Patent Citations (2)
| Title |
|---|
| 姚广春，刘宜汉等: "《先进材料制备技术》", 31 December 2006, 东北大学出版社, pages: 219 * |
| 马大方: "《氧气与相关气体的安全生产及使用技术》", 31 January 1998, 华中理工大学出版社, pages: 197 * |
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