Study on Recovery of Tungsten and Molybdenum from High-Mo Tungsten Solution AITranslate
Abstract AITranslate
The process is applied of the calcium salt precipitation-Cr removal by washing in dilute hydrochloric acid and W and Mo separation with concentrated hydrochloric acid to recover the tungsten and molybdenum from high-Mo tungsten solution resulted from the waste superalloy treatment.The effects were investigated of pH value of calcium salt precipitation,hydrochloric acid concentration,reaction temperature,reaction time and liquid to solid ratio on separation of tungsten and molybdenum.The experimental results show that during calcium precipitation,tungsten and molybdenum precipitation rate is more than 99% with pH value of 9.5,CaCl_2 excess coefficient of 1.2,and temperature of 80~90 ℃.Chromium can be removed from solid precipitation by washing with dilute hydrochloric acid,and chromium removal rate get close to 100% with 3% hydrochloric acid concentration.In addition,tungsten in the insoluble solid was separated from molybdenum with concentrated hydrochloric acid.Under the conditions of hydrochloric acid concentration of 250g/L,reaction temperature of 65℃,reaction time of 30 min,and liquid to solid ratio of 3∶1,more than 98% molybdenum dissolves in solution,while tungsten exists in solid form of tungsten acid.Thus,the separation of tungsten,molybdenum and chromium is realized.
KeyWords AITranslate
1殷俐娟.我国钨资源现状与政策效应[J].中国矿业,2009,18(11):1-3. 被引量：18
2孔昭庆.新中国钨工业60年[J].中国钨业,2009,24(5):1-10. 被引量：26
3行卫东,范兴祥,董海刚,吴跃东,付光强,刘杨.废旧高温合金再生技术及进展[J].稀有金属,2013,37(3):494-500. 被引量：22
4曹佐英,张启修.钨钼分离研究进展[J].稀有金属,2004,28(6):1076-1081. 被引量：13
5孙培梅,霍广生.钨钼分离方法的研究进展[J].中国钼业,2003,27(2):35-38. 被引量：8
6李洪桂,孙培梅,李运姣,起中伟,苏鹏抟,刘茂盛.选择性沉淀法从钨酸盐溶液中除钼、砷、锑、锡等杂质的研究[J].中国钨业,1998,13(4):17-19. 被引量：19
1吴永谦,张卜升,陈昆昆,孟晗琪,吴贤.从钨钼废液中除铬的实验研究[J].中国钼业,2017,41(2):8-10.
1龚丹丹,黄泽辉,赵立夫,徐国钻,张勇.钼渣处理工艺试验研究[J].中国钨业,2015,30(3):38-42. 被引量：3
2杨树峰,李京社,张立峰,唐海燕,高锦国,姜桂连.不同脱氧剂对气瓶钢洁净度的影响[J].钢铁钒钛,2009,30(3):61-64. 被引量：2
3李昆,宋文臣,郑权,李宏.熔融态钒渣氧化钙化后酸浸研究[J].钢铁钒钛,2013,34(5):15-18. 被引量：6
4李贺,刘旭恒,何利华.钙盐沉钒的热力学研究[J].稀有金属与硬质合金,2014,42(1):15-19. 被引量：3
5刘永康,王淀佐,罗文平,何伯泉.添加剂对高铁赤泥煤基直接还原的催化作用[J].湖南冶金,1995,23(6):5-7. 被引量：1
6吴玉霜.硬质合金中镍和钴的连续测定[J].稀有金属与硬质合金,1996,24(2):40-43.
7一种从石煤钒矿中提钒的焙烧工艺[J].钢铁钒钛,2009,30(1):76-77.
8江秋月.高铅硅锌渣绿色回收锗铟的新工艺研究[J].有色金属：冶炼部分,2014(4):51-53. 被引量：13
9梁伦龙.钢渣中游离氧化钙快速测定方法研究[J].涟钢科技与管理,2000(6):6-7.
10胡杨甲,张一敏.钙含量对含钒页岩钠盐焙烧-水浸提钒的影响[J].有色金属：冶炼部分,2014(9):34-38. 被引量：9
Basic Information:
DOI：
Chinese Library Classification Number:TF841.1[冶金工程—有色金属冶金]
Citation Information:
The process is applied of the calcium salt precipitation-Cr removal by washing in dilute hydrochloric acid and W and Mo separation with concentrated hydrochloric acid to recover the tungsten and molybdenum from high-Mo tungsten solution resulted from the waste superalloy treatment.The effects were investigated of pH value of calcium salt precipitation,hydrochloric acid concentration,reaction temperature,reaction time and liquid to solid ratio on separation of tungsten and molybdenum.The experimental results show that during calcium precipitation,tungsten and molybdenum precipitation rate is more than 99% with pH value of 9.5,CaCl_2 excess coefficient of 1.2,and temperature of 80~90 ℃.Chromium can be removed from solid precipitation by washing with dilute hydrochloric acid,and chromium removal rate get close to 100% with 3% hydrochloric acid concentration.In addition,tungsten in the insoluble solid was separated from molybdenum with concentrated hydrochloric acid.Under the conditions of hydrochloric acid concentration of 250g/L,reaction temperature of 65℃,reaction time of 30 min,and liquid to solid ratio of 3∶1,more than 98% molybdenum dissolves in solution,while tungsten exists in solid form of tungsten acid.Thus,the separation of tungsten,molybdenum and chromium is realized.
quote
| GB/T 7714-2015 | [1] WU Yong-qian, WU Xian, MENG Han-qi, et al. Study on Recovery of Tungsten and Molybdenum from High-Mo Tungsten Solution[J]. Rare Metals and Cemented Carbides, 2016(5): 1-5. |
| MLA | [1] WU Yong-qian, et al., "Study on Recovery of Tungsten and Molybdenum from High-Mo Tungsten Solution." Rare Metals and Cemented Carbides, no. 5, 2016, pp. 1-5. |
| APA | [1] WU Yong-qian, WU Xian, MENG Han-qi, & CHEN Kun-kun. (2016). Study on Recovery of Tungsten and Molybdenum from High-Mo Tungsten Solution. Rare Metals and Cemented Carbides(5), 1-5. |
| IEEE | [1] WU Yong-qian, WU Xian, MENG Han-qi, and CHEN Kun-kun, "Study on Recovery of Tungsten and Molybdenum from High-Mo Tungsten Solution," Rare Metals and Cemented Carbides, no. 5, pp. 1-5, 2016. keywords: {waste superalloy;tungsten;molybdenum;chromium;calcium salt;hydrochloric acid;recovery} |