CN113430364A - 一种钼精矿除铁的方法 - Google Patents
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 81
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 54
- 239000011733 molybdenum Substances 0.000 title claims abstract description 54
- 239000012141 concentrate Substances 0.000 title claims abstract description 52
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000001110 calcium chloride Substances 0.000 claims abstract description 27
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 27
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 26
- 238000002386 leaching Methods 0.000 claims abstract description 21
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000011028 pyrite Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052683 pyrite Inorganic materials 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 43
- 238000000498 ball milling Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005660 chlorination reaction Methods 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 abstract description 10
- 238000009833 condensation Methods 0.000 abstract description 9
- 230000005494 condensation Effects 0.000 abstract description 9
- 239000002253 acid Substances 0.000 abstract description 7
- 229910052952 pyrrhotite Inorganic materials 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 14
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 9
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 7
- 229910052949 galena Inorganic materials 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 6
- 229910052950 sphalerite Inorganic materials 0.000 description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 5
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229960002089 ferrous chloride Drugs 0.000 description 3
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 description 3
- OYMJNIHGVDEDFX-UHFFFAOYSA-J molybdenum tetrachloride Chemical compound Cl[Mo](Cl)(Cl)Cl OYMJNIHGVDEDFX-UHFFFAOYSA-J 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011592 zinc chloride Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229910001510 metal chloride Inorganic materials 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 1
- 102000005298 Iron-Sulfur Proteins Human genes 0.000 description 1
- 108010081409 Iron-Sulfur Proteins Proteins 0.000 description 1
- 229910015218 MoCl4 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- JHXKRIRFYBPWGE-UHFFFAOYSA-K bismuth chloride Chemical compound Cl[Bi](Cl)Cl JHXKRIRFYBPWGE-UHFFFAOYSA-K 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 229910052961 molybdenite Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
- C22B1/08—Chloridising roasting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/34—Obtaining molybdenum
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- 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
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Abstract
本发明公开一种钼精矿除铁的方法,将钼精矿与氯化钙混合均匀后置于内热式真空炉内焙烧,真空氯化焙烧可除去钼精矿中的黄铁矿,冷凝盘内得到磁黄铁矿;焙烧残留物酸浸、过滤并干燥,除去剩余的铁的氧化物;本发明采用真空氯化焙烧和酸浸的方式有效去除钼精矿中杂质铁,该方法具有流程短、成本低、金属回收率高,对环境污染小的优点。
Description
技术领域
本发明涉及一种钼精矿除铁的方法,属于真空冶金领域。
背景技术
二硫化钼是航天、军工、核工业等高新技术领域以及民用工程常用且必不可少的高档固体润滑材料。工业上以钼精矿为原料,采用物理提纯法制备高纯二硫化钼,钼精矿中含有金属硫化物杂质,其中铁的含量较高,80%左右的铁是以黄铁矿形式存在(FeS2),其莫氏硬度大,对二硫化钼的润滑性能十分不利。
传统的盐酸浸出只能浸出钼精矿中的方解石和方铅矿,需要加入氧化剂进行氧化浸出除铁,药耗高,能耗大。且物理提纯法的酸浸过程产生大量的酸性废水,环保处理成本较高,氧化浸出还会导致钼的流失。
发明内容
针对上述问题,本发明提供一种真空氯化焙烧去除钼精矿中的杂质铁的方法,该方法将钼精矿与氯化钙混合均匀后放入真空炉内焙烧,可以直接去除钼精矿中的黄铁矿,然后通过盐酸酸浸去除剩余的少量铁的氧化物,从除铁原理分析,应用于此方法的原料不仅仅局限于钼精矿,还可以采用普通辉钼矿矿石以及含杂质铁的二硫化钼。
本发明技术方案如下:
一种真空氯化焙烧去除钼精矿中的杂质铁的方法,具体步骤如下:
(1)球磨混匀:将钼精矿与氯化钙加入球磨罐中球磨2-3小时混合均匀;
(2)真空氯化焙烧:将步骤(1)混合均匀的物料置于内热式真空炉内,在压强小于5Pa,升温至800-850℃后保温40-60min,待冷却后取出焙烧残留物;内热式真空炉冷凝盘内得到磁黄铁矿;
(3)将步骤(2)的焙烧残留物进行盐酸酸浸,去离子水洗涤、过滤并干燥。
所述钼精矿中Fe的质量百分比含量为0.4-4%,以黄铁矿和氧化铁形式赋存,其中70-80%是黄铁矿,其他是铁的氧化物。
所述氯化钙纯度大于98%。
所述钼精矿与氯化钙的质量比为1:1-5。
所述盐酸的质量分数为8-12%;焙烧残留物与盐酸的固液比(g:mL)为1:5-6。
本发明的原理:
钼精矿中金属硫化物杂质与CaCl2在真空条件下发生反应生成氯化物,CaCl2与钼精矿中各成分可能发生的反应如下(1)、(2)、(3)、(4)、(5)、(6)所示:
MoS2+2CaCl2=MoCl4(g)+2CaS (1)
FeS+CaCl2=FeCl2(g)+CaS (2)
Cu2S+CaCl2=2CuCl(g)+CaS (3)
CuS+CaCl2=CuCl2(g)+CaS (4)
ZnS+CaCl2=ZnCl2(g)+CaS (5)
PbS+CaCl2=PbCl2(g)+CaS (6)
氯化物的蒸气压较大,在真空条件下可以挥发除去,反应(1)、(2)、(3)、(4)、(5)、(6)中涉及的金属氯化物的饱和蒸气压与温度的关系如图1所示,压力为10Pa时,温度达到710℃足以使FeCl2、PbCl2、BiCl3、CuCl、ZnCl2挥发。
计算常压下反应(1)~(6)在不同温度下的标准吉布斯自由能,如图2(a)所示,常压下各硫化物与氯化钙的反应在1100℃之前均不能发生,根据“吉布斯自由能函数法”计算出压强为1Pa时的吉布斯自由能,如图2(b)所示,在1Pa条件下,硫化亚铁与氯化钙的反应在理论上是可以发生的,反应的起始温度约为810℃,随着温度升高反应更易发生,因为生成物有气体,上述反应随着压强的降低更容易进行。铁转变成其对应的氯化物气体挥发除去,产物硫化钙则留在钼精矿中,CaS是一种无机物,溶于铵盐,易与酸反应,可在后续工艺除去。
真空氯化焙烧后收集的冷凝物的物相主要为铁的硫化物,而铁硫化合物蒸气压很小,在实验温度下不会挥发出来,杂质硫化亚铁被氯化后生成氯化亚铁,推测其在挥发过程中与某些气相反应进一步生成铁的硫化物并冷凝在冷凝盘上,体系内可能存在的气相S2、PbS、ZnS与氯化亚铁可能发生的反应分别如下:
S2(g)+2FeCl2(g)=2FeS+2Cl2(g) (7)
PbS(g)+FeCl2(g)=FeS+PbCl2(g) (8)
ZnS(g)+FeCl2(g)=FeS+ZnCl2(g) (9)
计算上述反应在10Pa下的吉布斯自由能并绘出关系曲线如图3所示,其中PbS、ZnS与FeCl2的反应在理论上是可自发进行的,由吉布斯自由能与温度的关系可以看出,随温度升高,FeCl2的重新硫化越不易进行,因此推断,原料中铁的硫化物被氯化成FeCl2后,与钼精矿中易挥发硫化物如PbS、ZnS一起挥发,在遇到温度较低的冷凝盘时发生反应重新生成铁的硫化物并冷凝在冷凝盘上。
本发明的优点在于工艺流程简单,便于操作,氯化过程在真空中进行,钼的直收率高,同时可通过冷凝的方法收集杂质并回收,对环境无污染,极大减少了酸的使用量,所以也减少了废水的处理量;通过该方法还可以去除钼精矿中一些其他杂质,如Bi2S3、PbS、ZnS。
附图说明
图1为金属氯化物蒸气压与温度的关系;
图2为硫化物与氯化钙反应的吉布斯自由能((a)105Pa,(b)1Pa);
图3为10Pa时,反应(7)、(8)、(9)的吉布斯自由能;
图4为实施例1冷凝物的XRD图。
具体实施方式
下面结合具体实施例对本发明做进一步说明,但是本发明的保护范围并不限于所述内容。
实施例1
一种真空氯化焙烧去除钼精矿中的杂质铁的方法,具体步骤如下:
(1)球磨混匀:将钼精矿与氯化钙加入球磨罐中球磨2小时;钼精矿中Fe的质量百分比含量为1.42%,以黄铁矿和氧化铁形式赋存,氯化钙纯度大于98%,钼精矿与氯化钙的质量比为1:1.5;
(2)真空氯化焙烧:将步骤(1)混合均匀的物料置于内热式真空炉内,在压强小于5Pa,升温至850℃后保温40min,待冷却后取出焙烧残留物;内热式真空炉冷凝盘内得到副产物磁黄铁矿;
(3)将步骤(2)的焙烧残留物进行盐酸酸浸5h,盐酸的质量分数为10%,焙烧残留物与盐酸的固液比(g:mL)为1:6,去离子水洗涤至中性,过滤并在90℃条件下干燥15h,经检测产物中铁的质量百分比含量为0.082%,除铁率约为94.23%。
图4为本实施例步骤(2)真空蒸馏的冷凝物的XRD图,从图中可以看出冷凝物的主要组成为Fe0.94S,说明真空氯化过程中铁以磁黄铁矿的形式得以回收,磁黄铁矿主要用作生产硫酸、硫磺、二硫化碳等的原料,广泛用于石油化工、冶金、橡胶、造纸、军事等工业。
实施例2
一种真空氯化焙烧去除钼精矿中的杂质铁的方法,具体步骤如下:
(1)球磨混匀:将钼精矿与氯化钙加入球磨罐中球磨2.5小时;钼精矿中Fe的质量百分比为0.76%,以黄铁矿和氧化铁形式赋存,氯化钙纯度大于98%,钼精矿与氯化钙的质量比为1:1;
(2)真空氯化焙烧:将步骤(1)混合均匀的物料置于内热式真空炉内,在压强小于5Pa,升温至820℃后保温50min,待冷却后取出焙烧残留物;内热式真空炉冷凝盘内得到副产物磁黄铁矿;
(3)将步骤(2)的焙烧残留物进行盐酸酸浸8h,盐酸的质量分数为12%,焙烧残留物与盐酸的固液比(g:mL)为1:5,去离子水洗涤至中性,过滤并在80℃条件下干燥16h,经检测产物中铁的质量百分比含量为0.045%,除铁率约为94.08%。
实施例3
一种真空氯化焙烧去除钼精矿中的杂质铁的方法,具体步骤如下:
(1)球磨混匀:将钼精矿与氯化钙加入球磨罐中球磨3小时;钼精矿中Fe的质量百分比为1.42%,以黄铁矿和氧化铁形式赋存,氯化钙纯度大于98%,钼精矿与氯化钙的质量比为1:5;
(2)真空氯化焙烧:将步骤(1)混合均匀的物料置于内热式真空炉内,在压强小于5Pa,升温至800℃后保温60min,待冷却后取出焙烧残留物;内热式真空炉冷凝盘内得到副产物磁黄铁矿;
(3)将步骤(2)的焙烧残留物进行盐酸酸浸6h,盐酸的质量分数为8%,焙烧残留物与盐酸的固液比为(g:mL)1:6,去离子水洗涤至中性,过滤并在100℃条件下干燥12h,经检测产物中铁的质量百分比含量为0.061%,除铁率约为95.70%。
对比例1
现有二硫化钼一段酸浸降铁试验研究,采用盐酸浸出过程加入硝酸氧化除铁,硝酸140kg/t,固液比1:2,浸出温度80℃,浸出时间3h,原料钼精矿铁的含量从0.67%降至0.12%,除铁率为83.52%。
对比例2
传统工艺降铁,采用酸浸(HCl:HF=1:1),盐酸质量浓度10%,氢氟酸质量浓度20%,浸出温度80℃,浸出时间16h,钼精矿的铁含量由0.65%降至0.35%,除铁率为46.15%。
综上,本发明实施例1-3的除铁率均高于对比例1和对比例2,本发明将钼精矿与氯化钙混合均匀后放入真空炉内焙烧,先去除钼精矿中的黄铁矿,然后通过盐酸酸浸去除剩余的少量铁的氧化物,除铁效果好。
Claims (6)
1.一种钼精矿除铁的方法,其特征在于,具体步骤如下:
(1)球磨混匀:将钼精矿与氯化钙球磨2-3小时混合均匀;
(2)真空氯化焙烧:将步骤(1)混合均匀的物料置于内热式真空炉内,压强小于5Pa,升温至800-850℃后保温40-60min,待冷却后取出残留物,冷凝盘内得到磁黄铁矿;
(3)将步骤(2)的残留物盐酸酸浸5-8h,去离子水洗涤、过滤并干燥。
2.根据权利要求1所述钼精矿除铁的方法,其特征在于,钼精矿中Fe的质量百分比含量为0.4-4%,以黄铁矿和氧化铁形式赋存。
3.根据权利要求1所述钼精矿除铁的方法,其特征在于,氯化钙纯度大于98%。
4.根据权利要求1所述钼精矿除铁的方法,其特征在于,钼精矿与氯化钙的质量比为1:1-5。
5.根据权利要求1所述钼精矿除铁的方法,其特征在于,盐酸的质量分数为8-12%。
6.根据权利要求1所述钼精矿除铁的方法,其特征在于,焙烧残留物与盐酸的固液比g:mL为1:5-6。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103194623A (zh) * | 2013-03-29 | 2013-07-10 | 嵩县开拓者钼业有限公司 | 一种钼精矿提纯方法及装置 |
US20160083817A1 (en) * | 2013-05-17 | 2016-03-24 | BLüCHER GMBH | Method and plant for processing roasted pyrites |
US20160102375A1 (en) * | 2013-05-17 | 2016-04-14 | BLüCHER GMBH | Method and plant for producing iron from roasted pyrites |
CN107055616A (zh) * | 2017-06-17 | 2017-08-18 | 金堆城钼业股份有限公司 | 一种二硫化钼的降杂工艺 |
CN109354070A (zh) * | 2018-11-07 | 2019-02-19 | 洛阳申雨钼业有限责任公司 | 一种二硫化钼焙烧提纯方法 |
-
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- 2021-06-02 CN CN202110612383.8A patent/CN113430364B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103194623A (zh) * | 2013-03-29 | 2013-07-10 | 嵩县开拓者钼业有限公司 | 一种钼精矿提纯方法及装置 |
US20160083817A1 (en) * | 2013-05-17 | 2016-03-24 | BLüCHER GMBH | Method and plant for processing roasted pyrites |
US20160102375A1 (en) * | 2013-05-17 | 2016-04-14 | BLüCHER GMBH | Method and plant for producing iron from roasted pyrites |
CN107055616A (zh) * | 2017-06-17 | 2017-08-18 | 金堆城钼业股份有限公司 | 一种二硫化钼的降杂工艺 |
CN109354070A (zh) * | 2018-11-07 | 2019-02-19 | 洛阳申雨钼业有限责任公司 | 一种二硫化钼焙烧提纯方法 |
Non-Patent Citations (1)
Title |
---|
王磊等: "钼精矿真空分解工艺热力学分析", 《中国有色金属学报》 * |
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