CN108514876B - 原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法 - Google Patents
原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法 Download PDFInfo
- Publication number
- CN108514876B CN108514876B CN201810408490.7A CN201810408490A CN108514876B CN 108514876 B CN108514876 B CN 108514876B CN 201810408490 A CN201810408490 A CN 201810408490A CN 108514876 B CN108514876 B CN 108514876B
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- titanium
- furnace slag
- powder
- containing blast
- 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.)
- Active
Links
- 239000002893 slag Substances 0.000 title claims abstract description 76
- 239000010936 titanium Substances 0.000 title claims abstract description 65
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 63
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 30
- 239000003054 catalyst Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000010168 coupling process Methods 0.000 title claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 13
- 239000003546 flue gas Substances 0.000 title claims abstract description 13
- 230000008878 coupling Effects 0.000 title claims abstract description 12
- 238000005457 optimization Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 66
- 238000000227 grinding Methods 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 8
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 230000007935 neutral effect Effects 0.000 claims abstract description 3
- 229910002971 CaTiO3 Inorganic materials 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 8
- 238000003723 Smelting Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009194 climbing Effects 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011954 pollution control method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
本发明提供一种原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法,属于高炉渣应用技术领域。该方法首先将含钛高炉渣粉末与MnO2粉末研磨混合均匀置于坩埚中,加热至熔融状态保温1小时后,自然冷却得到原位优化的含钛高炉渣,然后将原位优化的含钛高炉渣粉末与Na2CO3粉末混合研磨均匀后置于坩埚中,得到重构的含钛高炉渣,将重构的含钛高炉渣粉末置于盐酸溶液中,在温度20~60℃下,搅拌反应20~80分钟后过滤并用水洗涤至中性,烘干得到光热耦合烟气脱硝催化剂。本发明操作简单易行,有效实现了含钛高炉渣中Ti组分的回收利用,提高了含钛高炉渣的附加值,拓宽了高炉渣的应用领域;本发明制得的催化剂,在300℃达到93%的脱硝效率。
Description
技术领域:
本发明属于高炉渣应用技术领域,具体涉及一种以含钛高炉渣为原料制备光热耦合烟气脱硝催化剂的方法。
背景技术:
随着社会的进步和科技的发展,生活品质的不断提升,人类对不可再生的矿产资源需求量骤增,在金属冶炼中产生了大量的冶金固废以及有毒有害气体。例如:攀钢主要采用的高炉冶炼工艺冶炼钒钛磁铁矿的过程中,产生大量的含钛高炉渣,伴随排放出大量有毒有害的废水、废气。虽然科学工作者对其进行了大量的研究,一直未能找到经济环保的方式解决冶炼过程中产生的“三废”难题。本发明基于“以废治废”的思想,在前期直接提取模拟含钛高炉渣中的钙钛矿的研究基础上,基于光催化性能驱动,利用不同过渡金属元素(为后续实现利用含此类过渡元素的固废对含钛高炉渣的原位改性提供理论依据)对含钛高炉渣中的钙钛矿进行原位改性,制备低成本高效烟气光耦合选择性催化还原脱硝(PhotoSCR)光催化剂,处理废水、废气,试图探索出一条资源循环-污染控制一体化的难处理高硅冶金渣高附加值利用新途径。
在我国,钒钛磁铁矿床分布广泛,储量十分丰富,其中主要以四川攀枝花-西昌、河北承德和安徽马鞍山为主要产地。尤其,攀枝花-西昌地区我国最大的钛资源来源地,矿储量达100亿吨左右,占世界含钛铁矿储量50%左右。目前,攀钢主要采用高炉冶炼钒钛磁铁矿工艺,在高炉炼铁过程中,铁精矿中的钛元素基本进入高炉渣。由于排放的含钛高炉渣中TiO2的含量为23%~25%,并且弥散分布于不同矿物相中,很难经济有效的进行回收利用。至今为止,攀钢产生并累计堆积的含钛高炉渣已达到数千万吨,还以每年300多万吨的速度增加,伴随排放出大量有毒有害的废水、废气,不仅浪费资源,还造成了严重的环境污染。因此,如何将含钛高炉渣合理化利用,使含钛高炉渣既能实现高附加值利用,又能减少污染物的排放,从而达到资源循环、保护环境的目的。
发明内容:
本发明针对现有技术存在的上述问题,提供一种操作简单、易于工业化实施的原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法。本发明所提供的一种原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法的具体步骤如下:
(1)含钛高炉渣的原位优化及重构:
A:将含钛高炉渣烘干,利用粉末罐粉磨,得到含钛高炉渣粉末。
B:将所述含钛高炉渣粉末与MnO2粉末研磨混合均匀置于坩埚中,加热至1250~1500℃熔融状态保温1h后,自然冷却得到原位优化的含钛高炉渣,所述含钛高炉渣粉末与所述MnO2粉末的质量比为100:(1~25)。所用MnO2粉末不限于MnO2,可以为含Mn固废或尾矿。
C:将所述原位优化的含钛高炉渣进行破碎,然后用粉末罐粉磨得到原位优化的含钛高炉渣粉末,烘干备用;将所述原位优化的含钛高炉渣粉末与Na2CO3粉末混合研磨均匀后置于坩埚中,于1250~1500℃条件下进行重构,保温1h后自然冷却得到重构的含钛高炉渣,所述原位优化的含钛高炉渣粉末与所述Na2CO3粉末的质量比为10:(1~3)。所用Na2CO3粉末不限于Na2CO3,可以为由废碱水经粗结晶后获得的工业Na2CO3。
(2)制备光热耦合烟气脱硝催化剂:
将所述重构的含钛高炉渣破碎研磨得到重构的含钛高炉渣粉末,将所述重构的含钛高炉渣粉末置于4wt%~12wt%盐酸溶液中,在温度20~60℃下,搅拌反应20~80min后过滤并用水洗涤至中性,烘干得到光热耦合烟气脱硝催化剂:Mn掺杂CaTiO3基脱硝催化剂。
本发明具有以下技术特点:
1、含钛高炉渣的原位优化过程简单易行,只需将含钛高炉渣与MnO2混合均匀加热熔融,可实现含钛高炉渣的大量处理。
2、原位优化渣的重构过程简单易行,碱热处理有效实现Ti元素富集到CaTiO3以及硅酸盐向重构,有利于大规模生产。
3、本发明提供的催化剂中Mn元素分散均匀,不会出现团聚现象。
4、本发明提供的催化剂活性,在300℃时达93%的脱硝效率。
附图说明:
图1为本发明实施例1所制备的脱硝催化剂得到的NO脱除率-温度曲线图。
图2为本发明实施例2所制备的脱硝催化剂得到的NO脱除率-温度曲线图。
图3为本发明实施例3所制备的脱硝催化剂得到的NO脱除率-温度曲线图。
具体实施方式:
下面通过实施例对本发明做进一步说明,但并不因此将本发明的保护范围限制在实施例之中。
实施例1:将含钛高炉渣破碎、粉末、烘干后备用;取100g含钛高炉渣与10g MnO2粉末置于玛瑙研钵中,研磨混合均匀置于坩埚中,箱式炉中加热至1500℃保温1h随炉冷却;将上述MnO2原位优化渣用粉末罐粉末备用;取100g上述的原位优化渣与30g Na2CO3粉末混合研磨均匀,置于坩埚中在1500℃下保温1h,自然冷却备用;将重构渣粉末罐粉磨后,取粉磨10.0091g,置于100mL 8wt%的盐酸溶液中,在30℃下搅拌60min,过滤获得滤渣和滤液,滤渣水洗、烘干后获得脱硝催化剂。
实施例2:将含钛高炉渣破碎、粉末、烘干后备用;取100g含钛高炉渣与10g MnO2粉末置于玛瑙研钵中,研磨混合均匀置于坩埚中,箱式炉中加热至1500℃保温1h随炉冷却;将上述MnO2原位优化渣用粉末罐粉末备用;取100g上述的原位优化渣与30g Na2CO3粉末混合研磨均匀,置于坩埚中在1500℃下保温1h,自然冷却备用;将重构渣粉末罐粉磨后,取粉磨10.0068g,置于150mL10wt%的盐酸溶液中,在25℃下搅拌60min,过滤获得滤渣和滤液,滤渣水洗、烘干后获得脱硝催化剂。
实施例3:将含钛高炉渣破碎、粉末、烘干后备用;取100g含钛高炉渣与10g MnO2粉末置于玛瑙研钵中,研磨混合均匀置于坩埚中,箱式炉中加热至1500℃保温1h随炉冷却;将上述MnO2原位优化渣用粉末罐粉末备用;取100g上述的原位优化渣与30g Na2CO3粉末混合研磨均匀,置于坩埚中在1500℃下保温1h,自然冷却备用;将重构渣粉末罐粉磨后,取粉磨10.0166g,置于100mL8wt%的盐酸溶液中,在30℃下搅拌30min,过滤获得滤渣和滤液,滤渣水洗、烘干后获得脱硝催化剂。
Claims (1)
1.一种原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法,其特征在于该方法具体步骤如下:
(1)含钛高炉渣的原位优化及重构:
A:将含钛高炉渣烘干,利用粉末罐粉磨,得到含钛高炉渣粉末;
B:将所述含钛高炉渣粉末与MnO2粉末研磨混合均匀置于坩埚中,加热至1250~1500℃熔融状态保温1h后,自然冷却得到原位优化的含钛高炉渣,所述含钛高炉渣粉末与所述MnO2粉末的质量比为100:(1~25);
C:将所述原位优化的含钛高炉渣进行破碎,然后用粉末罐粉磨得到原位优化的含钛高炉渣粉末,烘干备用;将所述原位优化的含钛高炉渣粉末与Na2CO3粉末混合研磨均匀后置于坩埚中,于1250~1500℃条件下进行重构,保温1h后自然冷却得到重构的含钛高炉渣,所述原位优化的含钛高炉渣粉末与所述Na2CO3粉末的质量比为10:(1~3);
(2)制备光热耦合烟气脱硝催化剂:
将所述重构的含钛高炉渣破碎研磨得到重构的含钛高炉渣粉末,将所述重构的含钛高炉渣粉末置于4wt%~12wt%盐酸溶液中,在温度20~60℃下,搅拌反应20~80min后过滤并用水洗涤至中性,烘干得到光热耦合烟气脱硝催化剂:Mn掺杂CaTiO3基脱硝催化剂。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810408490.7A CN108514876B (zh) | 2018-05-02 | 2018-05-02 | 原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810408490.7A CN108514876B (zh) | 2018-05-02 | 2018-05-02 | 原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108514876A CN108514876A (zh) | 2018-09-11 |
CN108514876B true CN108514876B (zh) | 2021-02-05 |
Family
ID=63429766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810408490.7A Active CN108514876B (zh) | 2018-05-02 | 2018-05-02 | 原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108514876B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109912242A (zh) * | 2019-03-19 | 2019-06-21 | 安徽工业大学 | 一种利用含钛高炉渣为原料制备压电混凝土材料的方法 |
CN112569946A (zh) * | 2020-12-28 | 2021-03-30 | 广西柳钢环保股份有限公司 | 一种有机废水处理臭氧催化剂及其制备方法 |
CN112675868B (zh) * | 2020-12-31 | 2023-06-09 | 安徽工业大学科技园有限公司 | 一种高效响应光耦合脱硝催化剂及其制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106807726A (zh) * | 2017-01-17 | 2017-06-09 | 安徽工业大学 | 含钛高炉渣与废旧印刷线路板协同全组分资源化方法 |
-
2018
- 2018-05-02 CN CN201810408490.7A patent/CN108514876B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106807726A (zh) * | 2017-01-17 | 2017-06-09 | 安徽工业大学 | 含钛高炉渣与废旧印刷线路板协同全组分资源化方法 |
Non-Patent Citations (1)
Title |
---|
"以含钛高炉渣为载体的负载型Mn-Ce系SCR催化剂的制备及性能研究";叶飞;《中国优秀硕士学位论文全文数据库》;20180415(第4期);第26和37页 * |
Also Published As
Publication number | Publication date |
---|---|
CN108514876A (zh) | 2018-09-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102698737B (zh) | 一种scr烟气脱硝催化剂及其原料钛钨粉的制备方法 | |
CN108514876B (zh) | 原位优化含钛高炉渣制备光热耦合烟气脱硝催化剂的方法 | |
CN103801192B (zh) | 一种水泥窑炉烟气脱硝的工艺 | |
CN101275187A (zh) | 一种石煤湿法提钒工艺 | |
CN105648241A (zh) | 废钒钨钛脱硝催化剂中有价金属钨、钒、钛综合回收的方法 | |
CN106477606B (zh) | 一种基于硫酸熟化从粉煤灰中提取氧化铝的方法 | |
CN110482503A (zh) | 一种二次铝灰资源综合利用的方法 | |
CN110863219B (zh) | 一种含锌转炉尘泥资源化利用的方法 | |
CN108103321A (zh) | 一种末次铝灰的再生利用方法 | |
CN105274341A (zh) | 一种废scr脱硝催化剂中金属钒和钨浸出的方法 | |
CN113479920A (zh) | 一种铝灰资源化利用方法 | |
CN113462892B (zh) | 钒钛磁铁矿低温还原焙烧实现铁、钒、钛综合利用的方法 | |
CN102923764A (zh) | 一种二氧化锡钠盐还原焙烧制备锡酸钠的方法 | |
CN113637840A (zh) | 利用钙化球磨焙烧-碱浸法从铁酸锌资源中回收锌的方法 | |
CN109402380A (zh) | 一种从钒渣中提钒的方法 | |
CN104372173A (zh) | 一种从含氟失效铂催化剂中富集铂的方法 | |
CN109439889A (zh) | 一种资源化利用钒酸钠的方法 | |
CN110735032A (zh) | 一种钒钛铁共生矿处理工艺 | |
CN103924089A (zh) | 一种熔融处理不锈钢粉尘、炉渣及含Cr污泥的方法 | |
CN117025982A (zh) | 一种钒铬铁合金的制备方法 | |
CN111074076B (zh) | 一种冶金固体废弃物的综合利用系统及方法 | |
CN102162041B (zh) | 一种利用转底炉焙烧含钒石煤的方法 | |
CN102534232A (zh) | 一种氢氧化钠溶液添加含碳物质常压分解钒渣的方法 | |
CN115354173A (zh) | 一种石煤浓酸二段熟化提钒工艺 | |
CN103014360B (zh) | 一种从炼钒废渣中浸取回收钒的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |