CN108220598A - 一种脱除硫酸锌溶液中氟的方法 - Google Patents
一种脱除硫酸锌溶液中氟的方法 Download PDFInfo
- Publication number
- CN108220598A CN108220598A CN201810039733.4A CN201810039733A CN108220598A CN 108220598 A CN108220598 A CN 108220598A CN 201810039733 A CN201810039733 A CN 201810039733A CN 108220598 A CN108220598 A CN 108220598A
- Authority
- CN
- China
- Prior art keywords
- fluorine
- solution
- slag
- zinc
- zinc sulfate
- 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.)
- Pending
Links
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 56
- 239000011737 fluorine Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 25
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 title claims abstract description 16
- 229960001763 zinc sulfate Drugs 0.000 title claims abstract description 16
- 229910000368 zinc sulfate Inorganic materials 0.000 title claims abstract description 16
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 title 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000002893 slag Substances 0.000 claims abstract description 25
- 239000011701 zinc Substances 0.000 claims abstract description 23
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 19
- 238000001556 precipitation Methods 0.000 claims abstract description 16
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 14
- 230000001376 precipitating effect Effects 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 238000013019 agitation Methods 0.000 claims abstract description 10
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000008929 regeneration Effects 0.000 claims abstract description 9
- 238000011069 regeneration method Methods 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 9
- 230000035484 reaction time Effects 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical group 0.000 claims 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910052693 Europium Inorganic materials 0.000 description 2
- 229910052777 Praseodymium Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000009854 hydrometallurgy Methods 0.000 description 2
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052773 Promethium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009297 electrocoagulation Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 1
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- VQMWBBYLQSCNPO-UHFFFAOYSA-N promethium atom Chemical compound [Pm] VQMWBBYLQSCNPO-UHFFFAOYSA-N 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明公开一种脱除硫酸锌溶液中氟的方法,在搅拌条件下将氟沉淀剂加入到高氟硫酸锌溶液,温度25~90℃,反应时间0.5~2h;过滤得到除氟后液和沉淀渣;沉淀渣在搅拌条件下洗涤再生,再生渣返回循环利用;通过向硫酸锌溶液中加入氟沉淀剂,脱除溶液中的杂质氟,除氟效率高,除氟率达80%以上;沉淀渣洗涤再生后,返回循环利用,本发明效率高、成本低、工艺操作简单。
Description
技术领域
本发明涉及一种脱除硫酸锌溶液中氟的方法,属于锌湿法净化除杂技术领域。
背景技术
随着矿山资源存储量逐渐减少和国家对可持续发展和绿色发展的要求,国内部分锌湿法冶炼厂开始调整发展方向,集中处理各种高杂低品位氧化锌烟尘。这些高杂低品位氧化锌烟尘一般含杂质氟较高,为0.5~5%,采用传统碱洗工艺难以脱除达到生产要求,这些氟进入硫酸锌湿法系统,不断富集升高后会危害电解系统,降低电解电流效率,锌片难剥离,增加了劳动强度和生产成本。
在湿法炼锌过程中,氟对系统设备和环境都影响较大。氟含量达一定值后会使电解阴阳极消耗和作业环境恶化。在硫酸锌电积过程中,氟离子会破坏阴极铝板表面的氧化铝膜,使析出锌与铝板的新鲜表面形成锌铝合金,导致锌皮难于剥离,阴极铝板消耗增加,增加作业成本。
氟的去除方法主要有化学沉淀法、吸附法、混凝沉淀法、电化学法和膜分离法。化学沉淀法具有方法简单、处理方便、成本低、效果好的特点,是目前工业上广泛应用的方法。混凝沉降法一般只适用于含氟较低的溶液处理,若含氟量大,混凝剂使用量多,处理费用较大,产生污泥量多,具有药剂投加量少、处理量大、一次处理后可达国家排放标准的优点,适用于工业含氟废水的处理。吸附法仅适用于处理水量较小的情况,如饮用水的除氟处理。离子交换法费用高,且对废水水质要求严格,难于工业化应用;电凝聚法及反渗透法装置复杂,耗电量大,因此都极少采用。
发明内容
本发明的目的是针对上述现有工业技术存在的问题,提出一种脱除硫酸锌溶液中氟的方法,该方法通过向高氟硫酸锌溶液中加入氟沉淀剂,脱除溶液中的杂质氟,除氟效率高,成本低。
本发明的目的通过以下手段来实现:
一种脱除硫酸锌溶液中氟的方法,具体包括如下步骤:
(1)取锌冶炼生产系统的高氟硫酸锌溶液,在搅拌条件下加入氟沉淀剂,温度25~90℃,搅拌反应时间0.5~2h;
(2)步骤(1)反应结束后,过滤得到除氟后液和沉淀渣;
(3)步骤(2)的沉淀渣在搅拌条件下洗涤再生,洗涤条件:加氢氧化钠或碳酸钠1~20g/L,温度40~90℃,反应时间0.5~2h;
(4)步骤(3)反应结束后,过滤得到洗涤液和再生渣,再生渣返回步骤(1)循环利用。
所述高氟硫酸锌溶液为生产系统的锌烟尘浸出液,含Zn100~160g/L,含氟100~1000mg/L。
所述氟沉淀剂为稀土元素的氧化物和/或氢氧化物,加入量为1~25g/L,稀土元素包括镧(La)、铈(Ce)、镨(Pr)、钕(Nd)、钷(Pm)、钐(Sm)、铕(Eu)、钆(Gd)、铽(Tb)、镝(Dy)、钬(Ho)、铒(Er)、铥(Tm)、镱(Yb)、镥(Lu)。
本发明的特点:通过向硫酸锌溶液中加入氟沉淀剂,脱除溶液中的杂质氟,除氟效率高,除氟率达80%以上;沉淀渣洗涤再生后,可返回循环利用。本发明效率高、成本低、工艺操作简单。
附图说明
附图1是本发明实施例1的工艺流程图。
具体实施方式
结合实例对本发明作进一步详细说明,但本发明不限于实施例。
实施例1
一种脱除硫酸锌溶液中氟的方法,如图1所示,具体包括如下步骤:
(1)取锌冶炼生产系统的高氟硫酸锌溶液,其中Zn含量为100g/L,氟含量为180mg/L,在搅拌条件下加入氟沉淀剂镧和镨的氧化物(两种氧化物质量比1︰1),加入量为1g/L,温度25℃,搅拌反应时间2h;
(2)步骤(1)反应结束后,过滤得到除氟后液和沉淀渣,除氟后液含氟35mg/L,除氟率80.6%;
(3)步骤(2)的沉淀渣在搅拌条件下洗涤再生,洗涤条件:加氢氧化钠5g/L,温度90℃,搅拌反应时间0.5h;
(4)步骤(3)反应结束后,过滤得到洗涤液和再生渣,再生渣作为氟沉淀剂返回步骤(1)循环利用。
实施例2
一种脱除硫酸锌溶液中氟的方法,具体包括如下步骤:
(1)取锌冶炼生产系统的高氟硫酸锌溶液,其中Zn含量为150g/L,氟含量为1000mg/L,在搅拌条件下加入氟沉淀剂铕和镧的氢氧化物(两种氢氧化物质量比1︰2),加入量为21g/L,温度90℃,搅拌反应时间1h;
(2)步骤(1)反应结束后,过滤得到除氟后液和沉淀渣,除氟后液含氟98mg/L,除氟率90.2%;
(3)步骤(2)的沉淀渣在搅拌条件下洗涤再生,洗涤条件:加碳酸钠20g/L,温度50℃,搅拌反应时间1h;
(4)步骤(3)反应结束后,过滤得到洗涤液和再生渣,再生渣作为氟沉淀剂返回步骤(1)循环利用。
实施例3
一种脱除硫酸锌溶液中氟的方法,具体包括如下步骤:
(1)取锌冶炼生产系统的高氟硫酸锌溶液,其中Zn含量为160g/L,氟含量为100mg/L,在搅拌条件下加入氟沉淀剂钇的氢氧化物,加入量为25g/L,温度80℃,搅拌反应时间0.5h;
(2)步骤(1)反应结束后,过滤得到除氟后液和沉淀渣,除氟后液含氟12.5mg/L,除氟率87.5%;
(3)步骤(2)的沉淀渣在搅拌条件下洗涤再生,洗涤条件:加碳酸钠1g/L,温度40℃,搅拌反应时间2h;
(4)步骤(3)反应结束后,过滤得到洗涤液和再生渣,再生渣作为氟沉淀剂返回步骤(1)循环利用。
Claims (3)
1.一种脱除硫酸锌溶液中氟的方法,其特征在于,具体包括如下步骤:
(1)取锌冶炼生产系统的高氟硫酸锌溶液,在搅拌条件下加入氟沉淀剂,温度25~90℃,搅拌反应时间0.5~2h;
(2)步骤(1)反应结束后,过滤得到除氟后液和沉淀渣;
(3)步骤(2)的沉淀渣在搅拌条件下洗涤再生,洗涤条件:加氢氧化钠或碳酸钠1~20g/L,温度40~90℃,反应时间0.5~2h;
(4)步骤(3)反应结束后,过滤得到洗涤液和再生渣,再生渣返回步骤(1)循环利用。
2.根据权利要求1所述脱除硫酸锌溶液中氟的方法,其特征在于,所述高氟硫酸锌溶液含Zn100~160g/L,含氟100~1000mg/L。
3.根据权利要求1所述脱除硫酸锌溶液中氟的方法,其特征在于,所述氟沉淀剂为稀土元素的氧化物和/或氢氧化物,加入量为1~25g/L。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810039733.4A CN108220598A (zh) | 2018-01-16 | 2018-01-16 | 一种脱除硫酸锌溶液中氟的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810039733.4A CN108220598A (zh) | 2018-01-16 | 2018-01-16 | 一种脱除硫酸锌溶液中氟的方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108220598A true CN108220598A (zh) | 2018-06-29 |
Family
ID=62641602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810039733.4A Pending CN108220598A (zh) | 2018-01-16 | 2018-01-16 | 一种脱除硫酸锌溶液中氟的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108220598A (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109161700A (zh) * | 2018-08-30 | 2019-01-08 | 西北矿冶研究院 | 一种脱除高酸度的湿法炼锌废电解液中氟的方法 |
CN111732114A (zh) * | 2020-07-30 | 2020-10-02 | 赣州天奇锂致实业有限公司 | 一种从硫酸锂料液中去除氟离子的方法 |
US11512368B2 (en) * | 2017-04-06 | 2022-11-29 | Montanuniversität Leoben | Method for removing fluoride from a zinc-containing solution or suspension, defluoridated zinc sulfate solution and use thereof, and method for producing zinc and hydrogen fluoride or hydrofluoric acid |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85105637A (zh) * | 1985-02-21 | 1986-09-17 | 旭化成工业株式会社 | 溶解氟的吸附处理法 |
CN1095045A (zh) * | 1993-05-07 | 1994-11-16 | 株式会社乐喜金属 | 用于除去废水中溶解的氟而产生的残留物的再处理方法 |
CN1954906A (zh) * | 2005-10-28 | 2007-05-02 | 中国科学院生态环境研究中心 | 一种复合金属氧化物除氟吸附剂 |
CN106179180A (zh) * | 2016-09-18 | 2016-12-07 | 中南大学 | 一种硫酸锌溶液用除氟材料及制备方法 |
CN106475047A (zh) * | 2016-09-30 | 2017-03-08 | 云南驰宏锌锗股份有限公司 | 一种硫酸锌溶液用脱氟剂及其制备方法 |
-
2018
- 2018-01-16 CN CN201810039733.4A patent/CN108220598A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85105637A (zh) * | 1985-02-21 | 1986-09-17 | 旭化成工业株式会社 | 溶解氟的吸附处理法 |
CN1095045A (zh) * | 1993-05-07 | 1994-11-16 | 株式会社乐喜金属 | 用于除去废水中溶解的氟而产生的残留物的再处理方法 |
CN1954906A (zh) * | 2005-10-28 | 2007-05-02 | 中国科学院生态环境研究中心 | 一种复合金属氧化物除氟吸附剂 |
CN106179180A (zh) * | 2016-09-18 | 2016-12-07 | 中南大学 | 一种硫酸锌溶液用除氟材料及制备方法 |
CN106475047A (zh) * | 2016-09-30 | 2017-03-08 | 云南驰宏锌锗股份有限公司 | 一种硫酸锌溶液用脱氟剂及其制备方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11512368B2 (en) * | 2017-04-06 | 2022-11-29 | Montanuniversität Leoben | Method for removing fluoride from a zinc-containing solution or suspension, defluoridated zinc sulfate solution and use thereof, and method for producing zinc and hydrogen fluoride or hydrofluoric acid |
CN109161700A (zh) * | 2018-08-30 | 2019-01-08 | 西北矿冶研究院 | 一种脱除高酸度的湿法炼锌废电解液中氟的方法 |
CN111732114A (zh) * | 2020-07-30 | 2020-10-02 | 赣州天奇锂致实业有限公司 | 一种从硫酸锂料液中去除氟离子的方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104628217B (zh) | 一种回收处理废旧锂电池电解液及电解液废水的处理方法 | |
CN102560535B (zh) | 一种湿法回收废铅酸蓄电池填料中铅的方法 | |
CN109487082A (zh) | 一种从锌电解液中脱除氟氯的方法 | |
CN108220598A (zh) | 一种脱除硫酸锌溶液中氟的方法 | |
CN105540914A (zh) | 含铝、镁及锰的排水的排水处理方法 | |
CN202499915U (zh) | 酸性蚀刻废液铜回收系统 | |
CN111560615B (zh) | 一种酸性蚀刻废液在线回收铜、氯气及蚀刻液再生的方法 | |
CN103866125A (zh) | 锌灰物料碱洗萃取联合工艺脱除氟氯的方法 | |
CN102002729A (zh) | 含铜蚀刻废液的处理方法与蚀刻溶液再生方法 | |
CN103725890B (zh) | 一种从富锌锰钴渣中多重控制分步回收有价金属的方法 | |
CN205442898U (zh) | 一种用于pcb含氨氮废水零排放处理的装置 | |
WO2018014748A9 (zh) | 氯化铵氨电还原制取铅工艺 | |
CN102517609A (zh) | 一种锌电解液脱氟氯的方法和设备 | |
CN104178630A (zh) | 含铜金属污泥的处理方法 | |
CN106756010A (zh) | 炼锌硅渣焙烧后脱除硫酸锌溶液中氟的方法 | |
CN103436914B (zh) | 一种电解金属锰阳极渣回收处理方法 | |
CN112624486A (zh) | 含砷污酸废水的氧化处理工艺 | |
CN205170590U (zh) | 一种废水处理系统 | |
CN110735048A (zh) | 一种湿法炼锌含锌溶液中镁、氟的脱除方法 | |
CN106086414A (zh) | 一种从废铅酸蓄电池铅膏中回收铅的方法 | |
CN102586621A (zh) | 一种氧化锌浆液脱硫脱氟氯的方法和设备 | |
CN106396164A (zh) | 一种工业酸性废水处理工艺 | |
CN114804049A (zh) | 从磷酸铁锂废旧电池中回收得到高纯磷酸铁的方法 | |
CN114774718A (zh) | 一种亚熔盐法回收稀土熔盐电解渣中稀土元素的方法 | |
CN207391167U (zh) | 一种碱性蚀刻线水洗段废水再生系统 |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
|
RJ01 | Rejection of invention patent application after publication |