CN1623650A - Ocean polymetallic nodule-crust leaching slag adsorbent and preparation method thereof - Google Patents
Ocean polymetallic nodule-crust leaching slag adsorbent and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an ocean polymetallic nodule-crust leaching slag adsorbent and a preparation method thereof. The adsorbent is a particle prepared by mixing, puffing and calcining the following raw materials in percentage by mass: 40-80% by mass of oceanic polymetallic nodule-crust leaching slag powder, 5-40% by mass of kaolin, 5-30% by mass of vermiculite and 5-15% by mass of water. The raw materials are puffed and calcined at 500-850 ℃ for 5-20 min to prepare the adsorbent. The method of the invention takes the hydrometallurgy tailings as the main raw material, takes a small amount of kaolin as the binder and vermiculite as the expanding agent, and has the advantages of low cost of the raw materials, reasonable formula design and simple process; the prepared adsorbent has good adsorption performance and is a good environmental material.
Description
Technical field
The present invention relates to a kind of oceanic multi-metal nodule-crust leaching slag adsorbent and preparation method thereof.
Background technology
It is binding agent that traditional adsorbent prilling adopts organic matters such as starch or inorganic matters such as waterglass, clay usually, does not add swelling agent, and cost of material is higher.
Summary of the invention
The purpose of this invention is to provide a kind of with low cost, oceanic multi-metal nodule-crust leaching slag adsorbent that absorption property is good.
A further object of the present invention provides that a kind of prescription is reasonable in design, the simple oceanic multi-metal nodule of technology-crust leaching slag preparation of adsorbent method.
For achieving the above object, the present invention takes following technical scheme:
A kind of oceanic multi-metal nodule-crust leaching slag adsorbent, this adsorbent be by the raw material of following mass percent through the particle that mixes, expanded calcining forms:
Oceanic multi-metal nodule-crust leaching slag powder 40～80 quality %
Kaolin 5～40 quality %
Vermiculite 5～30 quality %
Water 5～15 quality %
Wherein, described oceanic multi-metal nodule-crust leaching slag powder is by the Powdered tailings of oceanic multi-metal nodule after the ammonia soaking technology extracts valuable metal---ammonia leaching residue and/or by the Powdered tailings of oceanic cobalt-rich crust after acid leaching process extracts valuable metal---acid leaching residue.Mixed proportion between ammonia leaching residue and the acid leaching residue can be arbitrarily.
Relevant by oceanic multi-metal nodule after the ammonia soaking technology extracts valuable metal Powdered tailings---the preparation technology and the ammonia leaching residue thereof of ammonia leaching residue see " non-ferrous metal " periodical (1997 for details, the 49th volume, the third phase, 46～51 pages) in the record of " oceanic multi-metal nodule catalytic reduction ammonia leaching residue extracts nickel cobalt copper " (work such as Jiang Xunxiong); By the Powdered tailings of oceanic cobalt-rich crust after acid leaching process extracts valuable metal---the preparation technology and the acid leaching residue thereof of acid leaching residue see " the oceanic cobalt-rich crust Wet-process metallurgy method research " record of (Jiang Xunxiong etc. show) in " 2001 Chinese ocean mineral resources research and development scientific seminar's collection of thesis (descend) " (585～593 pages) for details.
The grain diameter of oceanic multi-metal nodule of the present invention-crust leaching slag adsorbent is 0.4～1.5mm.
A kind of method for preparing oceanic multi-metal nodule of the present invention-crust leaching slag adsorbent, this method comprises the steps:
(1), the raw material according to following mass percent mixes:
Oceanic multi-metal nodule-crust leaching slag powder 40～80 quality %
Kaolin 5～40 quality %
Vermiculite 5～30 quality %
Water 5～15 quality %
Wherein, described oceanic multi-metal nodule-crust leaching slag powder is by the Powdered tailings of oceanic multi-metal nodule after the ammonia soaking technology extracts valuable metal---ammonia leaching residue and/or by the Powdered tailings of oceanic cobalt-rich crust after acid leaching process extracts valuable metal---acid leaching residue;
(2), with above-mentioned raw materials mixed through 500～850 ℃ of expanded calcining 5～20min, make adsorbent.
Advantage of the present invention is:
Method of the present invention is to be primary raw material with the hydrometallurgy tailings, is binding agent with a small amount of kaolin, is swelling agent with the vermiculite, and cost of material is cheap, and it is reasonable in design to fill a prescription, and technology is simple; Made adsorbents adsorb is functional, is good environmentally conscious materials.
The specific embodiment
Embodiment
Raw material according to following mass percent mixes earlier:
Oceanic multi-metal nodule-crust leaching slag powder 60 quality %
Kaolin 20 quality %
Vermiculite 10 quality %
Water 10 quality %
Wherein, oceanic multi-metal nodule-crust leaching slag powder is by by the Powdered tailings of oceanic multi-metal nodule after the ammonia soaking technology extracts valuable metal---ammonia leaching residue and by the Powdered tailings of oceanic cobalt-rich crust after acid leaching process extracts valuable metal---, and acid leaching residue mixes, and ammonia leaching residue and acid leaching residue respectively are 50 quality % of oceanic multi-metal nodule-crust leaching slag powder total amount.
And then with above-mentioned raw materials mixed through 600 ℃ of expanded calcining 15min, make adsorbent.
After testing, the apparent density＜1.5g/cm of this adsorbent
3, specific area＞25m
2/ g reaches 100～180 μ g/g to the adsorbance of saturated sodium-chloride steam; To F
-Ion and Pb
2+, Cd
2+, Cu
2+, Cr
3+Isoionic adsorbance is greater than 15 μ g/g.
Claims (3)
1, a kind of oceanic multi-metal nodule-crust leaching slag adsorbent is characterized in that: this adsorbent be by the raw material of following mass percent through the particle that mixes, expanded calcining forms:
Oceanic multi-metal nodule-crust leaching slag powder 40～80 quality %
Kaolin 5～40 quality %
Vermiculite 5～30 quality %
Water 5～15 quality %
Wherein, described oceanic multi-metal nodule-crust leaching slag powder is by the Powdered tailings of oceanic multi-metal nodule after the ammonia soaking technology extracts valuable metal---ammonia leaching residue and/or by the Powdered tailings of oceanic cobalt-rich crust after acid leaching process extracts valuable metal---acid leaching residue.
2, oceanic multi-metal nodule according to claim 1-crust leaching slag adsorbent is characterized in that: the grain diameter of described adsorbent is 0.4～1.5mm.
3, a kind of method for preparing the described oceanic multi-metal nodule of claim 1-crust leaching slag adsorbent, it is characterized in that: this method comprises the steps:
(1), the raw material according to following mass percent mixes:
Oceanic multi-metal nodule-crust leaching slag powder 40～80 quality %
Kaolin 5～40 quality %
Vermiculite 5～30 quality %
Water 5～15 quality %
Wherein, described oceanic multi-metal nodule-crust leaching slag powder is by the Powdered tailings of oceanic multi-metal nodule after the ammonia soaking technology extracts valuable metal---ammonia leaching residue and/or by the Powdered tailings of oceanic cobalt-rich crust after acid leaching process extracts valuable metal---acid leaching residue;
(2), with above-mentioned raw materials mixed through 500～850 ℃ of expanded calcining 5～20min, make adsorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101171220A CN100348310C (en) | 2003-12-03 | 2003-12-03 | Ocean polymetallic nodule-crust leaching slag adsorbent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101171220A CN100348310C (en) | 2003-12-03 | 2003-12-03 | Ocean polymetallic nodule-crust leaching slag adsorbent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1623650A true CN1623650A (en) | 2005-06-08 |
| CN100348310C CN100348310C (en) | 2007-11-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564482C (en) * | 2006-07-06 | 2009-12-02 | 中国地质大学（北京） | Modifying asphalt of oceanic multi-metal nodule-crust leaching slag preparation and preparation method thereof |
| CN101775495B (en) * | 2010-01-15 | 2011-05-18 | 浙江大学 | Preparation method of active cryptomelane |
| CN114590945A (en) * | 2022-03-23 | 2022-06-07 | 国网河北省电力有限公司电力科学研究院 | Method for removing heavy metals in desulfurization wastewater |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4222897A (en) * | 1978-09-14 | 1980-09-16 | Mobil Oil Corporation | Sorbent for removing metals from fluids |
| CN1151066C (en) * | 2002-02-28 | 2004-05-26 | 浙江大学 | Process for synthesizing BaCaMn ore type molecular sieve from halobolite and Co-enriched incrustation |
-
2003
- 2003-12-03 CN CNB2003101171220A patent/CN100348310C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564482C (en) * | 2006-07-06 | 2009-12-02 | 中国地质大学（北京） | Modifying asphalt of oceanic multi-metal nodule-crust leaching slag preparation and preparation method thereof |
| CN101775495B (en) * | 2010-01-15 | 2011-05-18 | 浙江大学 | Preparation method of active cryptomelane |
| CN114590945A (en) * | 2022-03-23 | 2022-06-07 | 国网河北省电力有限公司电力科学研究院 | Method for removing heavy metals in desulfurization wastewater |
| CN114590945B (en) * | 2022-03-23 | 2024-02-13 | 国网河北省电力有限公司电力科学研究院 | Method for removing heavy metals in desulfurization wastewater |
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| CN100348310C (en) | 2007-11-14 |
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