OA10219A - A process for the controlled leaching of natural manganese dioxide by using hydrochloric acid - Google Patents
A process for the controlled leaching of natural manganese dioxide by using hydrochloric acid Download PDFInfo
- Publication number
- OA10219A OA10219A OA60601A OA60601A OA10219A OA 10219 A OA10219 A OA 10219A OA 60601 A OA60601 A OA 60601A OA 60601 A OA60601 A OA 60601A OA 10219 A OA10219 A OA 10219A
- Authority
- OA
- OAPI
- Prior art keywords
- hydrochloric acid
- leaching
- manganèse
- manganese dioxide
- dioxide
- Prior art date
Links
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims description 10
- 238000002386 leaching Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 9
- 230000008569 process Effects 0.000 title claims description 7
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 title description 23
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 230000002939 deleterious effect Effects 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000007928 solubilization Effects 0.000 description 2
- 238000005063 solubilization Methods 0.000 description 2
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 101150105184 Selenos gene Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002816 fuel additive Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- -1 manganèse salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 101150105992 vimp gene Proteins 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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
- C22B47/00—Obtaining manganese
- C22B47/0018—Treating ocean floor nodules
- C22B47/0045—Treating ocean floor nodules by wet processes
- C22B47/0054—Treating ocean floor nodules by wet processes leaching processes
- C22B47/0063—Treating ocean floor nodules by wet processes leaching processes with acids or salt solutions
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oceanography (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Paper (AREA)
Description
010219
Title of the Invention : "A PROCESS FOR THE CONTROLLED
LEACHING OF NATURAL MANGANESE DIOXIDE BY USING HYDROCHLORIC ACID"
The présent invention refers to a process for extracting and recovering natural manganèse dioxide (NMD) deleterious matter under the action of a sequenceof equipment which control previously defined physical- chemical conditions.
The State of the art points to the possibility of preparing a synthetic manganèse dioxide.Electrolytic manganèse dioxide (EMD) is obtained from the electrolysls of a MnSO^ solution whose raw materlalis MnO2 or MnC03. Chemical manganèse dioxide (CMD) isalso obtained by precipitating MnO2 into a manganèsesolution (oxidation of divalent manganèse salts).
However, the MnO2 leaching wherein the natural dioxide structure is kept and the NMD heavy metals are eliminated is not known in the industry.
The composition of manganèse ore varies from région in the continents and under the sea. In view of that, in addition to already existing treatments, certain countries are concerned about sea modules and hâve developed techniques for recovering the metals présent in manganèse matrices (Ni, Co, Mn, among others), treatments and techniques still inefficient in the case of significant manganèse ore occurrence. 010219
The purpose of the présent process is to accomplish the treatment of natural manganèse dioxide (NMD) in a convenient way not yet contemplated by the State of the art. In the beginning, exploitation tests for leaching MND by using hydrochloric acid were conducted, whose main object is the eventual occurrence of preferential solubilization of deleterious matter (Cu,
Ni, Fe, Co) with respect to the MnO2 matrix. Variables such as température, HCI concentration, reaction timeand the reuse of the filtered hydrochloric liquor weretaken into account when such tests were performed. Itcan be noticed that ail these parameters are important.
The solubilization of the many componentsprésent in the manganèse matrix was considered to be rather important because the concentration of a mineraiby the leaching process is attained by solubllizing the impurities.
After having defined statistical results, optimization tests were then scheduled, which testsincluded the pulp density, in view of the importance ofthis variable in industrial plants. At this optimizationstage, it was determined which effect four independentvariables (HCI concentration, température, leachingtime, pulp density), which change at the same time, hâveon dépendent variables (Mno2 régénération and Cu and Nicontent in the concentrate). 010219 h; '1 i β fs
At this final évaluation, with respect to Cu and Ni and the MnO2 régénération, the effects of the many independent variables and the Interactions thereof were confirmed. Mo st importantly, the importance of the HCL concentration i and the température with respect to the other variables was demonstrated.
Optimized essays showed the following conditional values : - HCL concentration = 9% to 25% weight, 10 depending on the expected extraction of deleterious matter and Mn02 régénération. - Leaching tirne = 10 to 60 minutes, depending , on the expected extraction of deleterious matter and
MnO2 régénération. 15 - Température = 80°C to 95°C, wherein the limit is 95°C because it is quite difficult to handleHCl above said température due to its vapor tension andoxidizing power. - Pulp densite = 10% to 40% weight, depending 20 on the HCI concentration used in the process.
Among said conditional values, some optimizations aregiven in the table below :
Mno2(%) Ni(ppm) Cu(ppm) Regen.MnO2(%)
Before 82 700 300 leaching 25 86 to 225 to 140 to 010219 70 to 90 92 385 157
Figure 1 in sheet 1 of flow-chart of the basic *c— ting deleterious matter K2SÏT4D). The parts thereof the appended drawingequipament designedfrom natural manganèse are numbered as t belt .spensing silo an hydrochloric acid réservoir ‘itted with dispenser »χ· belt
Lg tank vimp (piping or cup hoist) yer □7 010219
According to the flow-chart, the extraction of deleterious matter from natural manganèse dioxide (NMD) is accomplished through the following basic steps:
Part of the dispender controlledhydrochloric acid and water solution contained in the réservoir (3) is poured on the tank (6) through the pipe (4) . The heater is turned on, and a certain amount ofmilled natural manganèse dioxide (NMD) deposited in thedispenser silo (2) is poured on the tank (6) by thé belt (5) when the température reaches a présent value. Thedesired pulp density being thus attained, the motor (7)is actuated, then driving the mixer (8) during theperiod defined for the leaching to terminate. It is thenthat the motor-pump (10) is set to work, thus conveying the leached product through the conduit (11) towards the filter (12). After the whole pulp is filtered, the cake f ails into the channel (14) and then goes through the drum dryer (16) which is driven by the motor (15); the filtered hydrochloric liquor returns to the (6) through the pipe (13). Another cycle similar to the described one is started then.
The resuit on the successive utilization of the hydrochloric liquor, in addition to incrément the concentration of heavy metals - which is fundamental to the subséquent extraction thereof by Chemical and (or) electrochemical means - is an increase in the selectivity of the solubilizatio of said metals with 010219 s sf
K ri' / -J' 3 ·* respect to MnO2. However, at every new cycle, the complementary addition of the HCI + H20 solution containes in the réservoir (3) for maintaining theleaching agent concentration must be carried out. 5 The describer natural manganèse dioxide (NMD) purification has the following advantages with respect to said impure métal : - The extraction of heavy metals makes itpossible to use MND for the manufacture of mercuryless 10 electrolytical batteries - which is the wordwide tendency in view of environmental problems. - The increase in the content of MnO2 increases the electrochemical battry durability; - There is a strong industrial and commercial 15 demand for the other products extracted in the purification stages. Thus, from MnC03, we can obtain
MnCl2 besides fuel additives. Ni, Cu and Co are high valued metals due to the fact that they are used in specialized industries.
Claims (1)
- 010219 7 Cl aim process for controlled leaching of e dioxide b'/ using hydrochloric acid, rochloric acid solution is used for manganèse dionide, which leaching isuipment calibration in such a way thatof the effects thereof may force thed concentration to be within a range57. wsight, the température during thea range between 0Oe’C and 95°C, the pulp a range from 107. to 407. w/w, and the thin a range between 10 and 60 minutes. ♦ i /
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9401472A BR9401472A (en) | 1994-04-07 | 1994-04-07 | Controlled leaching process for natural manganese dioxide using hydrochloric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| OA10219A true OA10219A (en) | 1997-09-19 |
Family
ID=4058746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| OA60601A OA10219A (en) | 1994-04-07 | 1995-01-09 | A process for the controlled leaching of natural manganese dioxide by using hydrochloric acid |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPH07277737A (en) |
| AU (1) | AU685174B2 (en) |
| BE (1) | BE1008675A3 (en) |
| BR (1) | BR9401472A (en) |
| CA (1) | CA2144925C (en) |
| ES (1) | ES2103233B1 (en) |
| FR (1) | FR2718429B1 (en) |
| NL (1) | NL1000073C1 (en) |
| OA (1) | OA10219A (en) |
| PT (1) | PT101680B (en) |
| ZA (1) | ZA95664B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2607873C1 (en) * | 2015-09-28 | 2017-01-20 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Method of processing of ferromanganese concretions |
| CN113387391B (en) * | 2021-07-30 | 2022-05-24 | 广西埃索凯新材料科技有限公司 | Manganese sulfate production system based on manganese oxide ore |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2240586A1 (en) * | 1972-08-18 | 1974-02-28 | Krupp Gmbh | Leaching sea bed manganese nodules with hydrochloric acid - to recover copper, nickel, cobalt, manganese and iron |
| US4002717A (en) * | 1975-01-09 | 1977-01-11 | Deepsea Ventures, Inc. | Refining of manganese oxide ores |
| CA1061568A (en) * | 1975-01-17 | 1979-09-04 | Antoine Van Peteghem | Process for extracting metal values from manganiferous ocean floor nodule ore |
| DE2623837A1 (en) * | 1976-03-30 | 1977-10-13 | Eleusis Bauxite Mines Inc | METHOD FOR PRODUCING ACTIVE MANGANE DIOXIDE |
| US4150091A (en) * | 1977-11-21 | 1979-04-17 | Sun Ocean Ventures, Inc. | Manganese ore leaching process |
| DE4329086A1 (en) * | 1993-08-30 | 1995-03-02 | Gewerk Keramchemie | Process for the hydrometallurgical reprocessing of used batteries for recovering the raw materials |
-
1994
- 1994-04-07 BR BR9401472A patent/BR9401472A/en not_active IP Right Cessation
- 1994-12-01 AU AU79140/94A patent/AU685174B2/en not_active Expired
-
1995
- 1995-01-09 OA OA60601A patent/OA10219A/en unknown
- 1995-01-27 ZA ZA95664A patent/ZA95664B/en unknown
- 1995-02-07 JP JP7019003A patent/JPH07277737A/en active Pending
- 1995-02-15 ES ES09500301A patent/ES2103233B1/en not_active Expired - Fee Related
- 1995-03-17 CA CA002144925A patent/CA2144925C/en not_active Expired - Fee Related
- 1995-03-29 PT PT101680A patent/PT101680B/en not_active IP Right Cessation
- 1995-04-04 BE BE9500307A patent/BE1008675A3/en active
- 1995-04-06 NL NL1000073A patent/NL1000073C1/en not_active IP Right Cessation
- 1995-04-07 FR FR9504185A patent/FR2718429B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| BE1008675A3 (en) | 1996-07-02 |
| PT101680A (en) | 1995-11-30 |
| FR2718429B1 (en) | 1997-01-24 |
| JPH07277737A (en) | 1995-10-24 |
| BR9401472A (en) | 1995-11-07 |
| PT101680B (en) | 1997-04-30 |
| FR2718429A1 (en) | 1995-10-13 |
| CA2144925C (en) | 2006-09-19 |
| NL1000073C1 (en) | 1995-10-09 |
| CA2144925A1 (en) | 1995-10-08 |
| AU685174B2 (en) | 1998-01-15 |
| ES2103233A1 (en) | 1997-09-01 |
| AU7914094A (en) | 1995-10-19 |
| ZA95664B (en) | 1995-09-28 |
| ES2103233B1 (en) | 1998-07-01 |
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