CN106630898A - Method for producing diatom ooze by acid leaching laterite nickel ore silicon slag - Google Patents
Method for producing diatom ooze by acid leaching laterite nickel ore silicon slag Download PDFInfo
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- CN106630898A CN106630898A CN201611205573.3A CN201611205573A CN106630898A CN 106630898 A CN106630898 A CN 106630898A CN 201611205573 A CN201611205573 A CN 201611205573A CN 106630898 A CN106630898 A CN 106630898A
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- Prior art keywords
- diatom ooze
- nickel ore
- acidleach
- lateritic nickel
- white residue
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/08—Diatomaceous earth
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Silicon Compounds (AREA)
Abstract
The invention relates to a method for producing diatom ooze by acid leaching laterite nickel ore silicon slag. A diatom ooze product conforming to building requirements is produced at low cost by using laterite nickel ore acid leaching waste slag through work procedures of proportioning, grinding, drying, compounding and the like. The prepared diatom ooze produced by the acid leaching laterite nickel ore silicon slag is used as an environment-friendly wall material for home decoration. According to a method, the diatom ooze is directly used after the water addition or is used after conditioning of various colors and auxiliary agent addition. The method provided by the invention has the advantages that a process is simple; the cost is low; the product quality is reliable; the reference significance is realized on changing other silicon-containing waste slag into resources; obvious economic benefits and social benefits are realized.
Description
Technical field
The present invention relates to a kind of method of the method for acidleach lateritic nickel ore white residue production diatom ooze, belongs to resource environment neck
Domain.
Background technology
Laterite nickel main component is Ni, SiO2, MgO, Fe2O3, Al2O3, CaO etc., and wherein Si contents are generally 3-
35wt%, during wet method smelting nickel, commonly uses sulfuric acid (or hydrochloric acid) acidleach, and the main component of acid-soaked waste residue is SiO2, and content is up to 60-
90%, simultaneously containing compositions such as a small amount of Mg, Al and Ca, this part is all stacked as waste residue substantially, takes large area soil, is expended
Huge and pollution environment.The enhancing of requirement raising and people's environmental consciousness recently as country to clean manufacturing, it is domestic
Outer every regulation with regard to waste process and regeneration is progressively implemented, and requires treatment of wastes produced also more and more higher, smelting nickel enterprise
It is imperative that industry waste residue resource is disposed.The utilization of silicon resource in waste residue, can both reduce waste residue disposal costs, can produce again
The new benefit of life, the theory and clean manufacturing for meeting recycling economy is required.
Low-carbon environment-friendly, energy-saving and emission-reduction are the basic norms of world's every country sustainable economic development.With sending out for society
Exhibition and growth in the living standard, the awareness of environment protection and health of people is remarkably reinforced, will to the comfort level and security of living environment
Seek more and more higher.Indoor temperature, relative air humidity, air quality are the important environmental parameters of residence comfort.Work as Indoor Temperature
Spend for 20-23 DEG C, relative humidity be 50-60%, VOC content is low, anion concentration is high when, human body sensory is comfortable, good for health.
In order to realize building energy conservation, the storage and utilization of energy is realized using latent heat of phase change, be conducive to developing the phase of environment-friendly and energy-efficient
Change composite material, is one very active science frontier of material science and field of energy utilization in recent years.
The diatom ooze applied in building field at present is that modern house fits up a kind of popular household environment-friendlywater wall material,
Used as the Typical Representative of new coating, its main component is diatomite.Diatom ooze is known as " most environmentally friendly mud ", with elimination
The various functions such as formaldehyde, purify air, regulation humidity, releasing negative oxygen ion, fire protection flame retarding, the self-cleaning, deodorization and sterilization of metope.
Diatomite is a kind of rock with biological structure, belongs to one kind of clay mineral, by the remains group of ancient times diatom
Into its chemical composition is mainly SiO2, also containing a small amount of Al2O3, CaO, MgO etc., a small amount of organic impurities is also contained in addition.Due to
Containing more impurity such as organic matters in diatomite, when preparing diatom ooze, generally require to carry out acidleach removal of impurities, calcining, crushing, preparation
Etc. operation, to ensure the quality of diatom ooze.
Lateritic nickel ore acid-soaked waste residue, its composition is close with diatomite main component, and the process of generation also passes through crushing, acidleach
Etc. operation, critical process is identical with diatomite.White residue is also many hollow structures through acidleach, and activity is high；But due to wet method smelting nickel
The porosity of silicon is not specially required, not to the process of impurity specific aim, this part waste residue does not reach diatomaceous performance yet,
Diatom ooze can not be directly used in；Using rational method to Solid state fermentation after, be directly produced diatom ooze, huge Jing can be produced
Ji benefit and social benefit.
The content of the invention
The purpose of the present invention is for above-mentioned existing problems, there is provided a kind of acidleach lateritic nickel ore white residue produces the side of diatom ooze
Method, using waste residue through the operation such as allotment, grinding, dry, compounding, low cost production meets the diatom ooze of building requirements to the method
Product；The method process is simple, low cost, reliable product quality, there is huge economic benefit and social benefit.
Technical scheme：
A kind of method that acidleach lateritic nickel ore white residue produces diatom ooze, step is as follows：
1) device addition lateritic nickel ore acidleach white residue and talcum powder are being mixed, while adding 3-20wt% dilute sulfuric acids, stirring is equal
It is even, obtain solidliquid mixture；
2) above-mentioned solidliquid mixture is transported into colloid mill, is ground to solid grain size for 2-40 microns；
3) solidliquid mixture after above-mentioned grinding is added into dispersant and chopped fiber, is carried out into dewaterer after stirring
Separation of solid and liquid, and it is 6-9 to wash solids to pH, pickle and wash water are used to reclaim sulfuric acid magnesium products；
4) the qualified solids of above-mentioned washing is carried out into drying at 100-500 DEG C to be dried to moisture<3%；
5) drying object adds the plaster of paris, size-reduced packaging that the diatom ooze for meeting building requirements is obtained.
The step 1) lateritic nickel ore acidleach white residue, talcum powder and acid solution mass ratio be 1：(0.1-1.0)：(0.5-
2.0)。
The step 3) in dispersant be MF (dispersing agent MF), sodium lignin sulfonate, sodium pyrophosphate and
One or more arbitrary proportion mixtures in sodium metasilicate, its consumption is the 0.1-5wt% of solidliquid mixture total amount；It is described
Chopped fiber is that one or more arbitrary proportions in carbon fiber, alumina silicate fibre, magnesium sulfate crystal whisker and magnesia crystal whisker are mixed
Compound, its adding proportion is the 0.1-4wt% of solidliquid mixture total amount.
The step 5) mass ratio of the plaster of paris and drying object is 1：(2-8).
A kind of prepared acidleach lateritic nickel ore white residue produces the application of diatom ooze, for house fitting-up environmental protection wall material,
Method is directly to add water to use or allocate to use after shades of colour and auxiliary agent.
The invention has the beneficial effects as follows：
1) Bian wet grindings of the present invention, reduce the expense of white residue drying, while white residue and talcum powder mixed grinding, can
So that solids uniform particle sizes, improve product quality；Impurity is can remove using sulfuric acid grinding aid, solid particle porosity, acid is improved
Liquid main component is magnesium sulfate, can reclaim magnesium sulfate fertilizer with resource；Reduce environmentally friendly disposal costs.
2) present invention adds dispersant and chopped fiber in solid-liquid mixing, is easy to diatom ooze to improve construction effect after fully mixing
Rate；Present invention manufacture diatom ooze low cost, using effect is good, to being equipped with huge economic value at wet method smelting nickel waste residue, while this
Invention has reference to the recycling of other silicon-containing waste residues.
Description of the drawings
Fig. 1 is present invention process flow chart.
Specific embodiment
Further illustrate by the following examples, but be not construed as limiting the invention.
Embodiment 1：
A kind of method that acidleach lateritic nickel ore white residue produces diatom ooze, step is as follows：
1) device addition 1000Kg lateritic nickel ore acidleach white residues (butt calculating) and 500Kg talcum powder are being mixed, while adding
The dilute sulfuric acid 1500kg of concentration 3wt%, stirs, and obtains solidliquid mixture；
2) above-mentioned solidliquid mixture is transported into colloid mill, is ground to until solid grain size is 5 microns；
3) solidliquid mixture after above-mentioned grinding is added into 10kg Dispersant MFs and 30kg alumina silicate fibres, after stirring
Separation of solid and liquid is carried out into dewaterer, and it is 7.5 to wash solids to pH；Pickle and wash water are used to reclaim sulfuric acid magnesium products；
4) the qualified solids of above-mentioned washing is carried out into drying 60 minutes at 120 DEG C, is dried to moisture for 2%；
5) drying object adds the 300kg plaster of paris, size-reduced packaging that the diatom ooze that 1800kg meets building requirements, the silicon is obtained
Algae mud can directly add water to use or allocate and use after shades of colour and auxiliary agent.
Embodiment 2：
A kind of method that acidleach lateritic nickel ore white residue produces diatom ooze, step is as follows：
1) device addition 1000Kg lateritic nickel ore acidleach white residues (butt calculating) and 500Kg talcum powder are being mixed, while adding
Concentration is the dilute sulfuric acid 1300kg of 5wt%, stirs, and obtains solidliquid mixture；
2) above-mentioned solidliquid mixture is transported into colloid mill, is ground to until solid grain size is 4 microns；
3) solidliquid mixture after above-mentioned grinding is added into 15kg dispersants sodium lignin sulfonate and 30kg carbon fibers, stirring
Separation of solid and liquid is carried out into dewaterer after uniform, and it is 7.5 to wash solids to pH；Pickle and wash water are used to reclaim magnesium sulfate
Product；
4) the qualified solids of above-mentioned washing is carried out into drying 60 minutes at 130 DEG C, is dried to moisture for 1.5%；
5) drying object adds the 320kg plaster of paris, size-reduced packaging that the diatom ooze that 1820kg meets building requirements, the silicon is obtained
Algae mud can directly add water to use or allocate and use after shades of colour and auxiliary agent.
Embodiment 3：
A kind of method that acidleach lateritic nickel ore white residue produces diatom ooze, step is as follows：
1) device addition 1000Kg lateritic nickel ore acidleach white residues (butt calculating) and 500Kg talcum powder are being mixed, while adding
Concentration is the dilute sulfuric acid 1200kg of 10wt%, stirs, and obtains solidliquid mixture；
2) above-mentioned solidliquid mixture is transported into colloid mill, is ground to until solid grain size is 6 microns；
3) solidliquid mixture after above-mentioned grinding is added into 10kg dispersants sodium pyrophosphate and 20kg magnesium sulfate crystal whiskers, stirring
Separation of solid and liquid is carried out into dewaterer after uniform, and it is 7.6 to wash solids to pH；Pickle and wash water are used to reclaim magnesium sulfate
Product；
4) the qualified solids of above-mentioned washing is carried out into drying 50 minutes at 150 DEG C, is dried to moisture for 1.7%；
5) drying object adds the 350kg plaster of paris, size-reduced packaging that the diatom ooze that 1850kg meets building requirements, the silicon is obtained
Algae mud can directly add water to use or allocate and use after shades of colour and auxiliary agent.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all according to the present invention
Equivalence changes or modification that Spirit Essence is made, all should be included within the scope of the present invention.
Claims (5)
1. a kind of method that acidleach lateritic nickel ore white residue produces diatom ooze, it is characterised in that step is as follows：
1) device addition lateritic nickel ore acidleach white residue and talcum powder are being mixed, while adding 3-20wt% dilute sulfuric acids, is being stirred, obtained
To solidliquid mixture；
2) above-mentioned solidliquid mixture is transported into colloid mill, is ground to solid grain size for 2-40 microns；
3) solidliquid mixture after above-mentioned grinding is added into dispersant and chopped fiber, solid-liquid is carried out into dewaterer after stirring
Separate, and it is 6-9 to wash solids to pH, pickle and wash water are used to reclaim sulfuric acid magnesium products；
4) the qualified solids of above-mentioned washing is carried out into drying at 100-500 DEG C to be dried to moisture<3%；
5) drying object adds the plaster of paris, size-reduced packaging that the diatom ooze for meeting building requirements is obtained.
2. the method that according to claim 1 acidleach lateritic nickel ore white residue produces diatom ooze, it is characterised in that：The step 1)
The mass ratio of lateritic nickel ore acidleach white residue, talcum powder and acid solution is 1：(0.1-1.0)：(0.5-2.0).
3. the method that according to claim 1 acidleach lateritic nickel ore white residue produces diatom ooze, it is characterised in that：The step 3)
Middle dispersant is the one kind or two in MF (dispersing agent MF), sodium lignin sulfonate, sodium pyrophosphate and sodium metasilicate
Any of the above scalemic thereof is planted, its consumption is the 0.1-5wt% of solidliquid mixture total amount；The chopped fiber is carbon fiber, silicon
One or more arbitrary proportion mixtures in sour aluminum fiber, magnesium sulfate crystal whisker and magnesia crystal whisker, its adding proportion is
The 0.1-4wt% of solidliquid mixture total amount.
4. the method that according to claim 1 acidleach lateritic nickel ore white residue produces diatom ooze, it is characterised in that：The step 5)
The plaster of paris is 1 with the mass ratio of drying object：(2-8).
5. the acidleach lateritic nickel ore white residue prepared by a kind of claim 1 produces the application of diatom ooze, it is characterised in that：For family
The environmentally friendly wall material of finishing is occupied, method is directly to add water to use or allocate to use after shades of colour and auxiliary agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611205573.3A CN106630898B (en) | 2016-12-23 | 2016-12-23 | A kind of method of acidleach lateritic nickel ore silicon slag production diatom ooze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611205573.3A CN106630898B (en) | 2016-12-23 | 2016-12-23 | A kind of method of acidleach lateritic nickel ore silicon slag production diatom ooze |
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| Publication Number | Publication Date |
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| CN106630898A true CN106630898A (en) | 2017-05-10 |
| CN106630898B CN106630898B (en) | 2018-11-20 |
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| CN201611205573.3A Active CN106630898B (en) | 2016-12-23 | 2016-12-23 | A kind of method of acidleach lateritic nickel ore silicon slag production diatom ooze |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326821A (en) * | 2001-07-12 | 2001-12-19 | 柳云珍 | Process for treating silicon slag |
| US20110116996A1 (en) * | 2009-11-19 | 2011-05-19 | Sang-Bae Kim | Process for non-heating leaching nickel and magnesium from laterite using mechano-chemical effect |
| CN103509955A (en) * | 2013-07-17 | 2014-01-15 | 中信大锰矿业有限责任公司 | Two ore combined process for treatment of laterite nickel ore and pyrolusite |
| CN104630464A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for extracting nickel and cobalt from laterite-nickel ores by atmospheric-pressure acid leaching |
-
2016
- 2016-12-23 CN CN201611205573.3A patent/CN106630898B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326821A (en) * | 2001-07-12 | 2001-12-19 | 柳云珍 | Process for treating silicon slag |
| US20110116996A1 (en) * | 2009-11-19 | 2011-05-19 | Sang-Bae Kim | Process for non-heating leaching nickel and magnesium from laterite using mechano-chemical effect |
| CN103509955A (en) * | 2013-07-17 | 2014-01-15 | 中信大锰矿业有限责任公司 | Two ore combined process for treatment of laterite nickel ore and pyrolusite |
| CN104630464A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for extracting nickel and cobalt from laterite-nickel ores by atmospheric-pressure acid leaching |
Non-Patent Citations (1)
| Title |
|---|
| 孔伟: "硅藻土基调湿材料的制备与性能研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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| CN106630898B (en) | 2018-11-20 |
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