CN105752994A - Method for preparing white carbon black from graphite tailings - Google Patents
Method for preparing white carbon black from graphite tailings Download PDFInfo
- Publication number
- CN105752994A CN105752994A CN201610280153.5A CN201610280153A CN105752994A CN 105752994 A CN105752994 A CN 105752994A CN 201610280153 A CN201610280153 A CN 201610280153A CN 105752994 A CN105752994 A CN 105752994A
- Authority
- CN
- China
- Prior art keywords
- white carbon
- parts
- graphite tailing
- method utilizing
- carbon according
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a method for preparing white carbon black from graphite tailings and belongs to the field of integrated use of waste resources.According to the technical scheme, the method for preparing white carbon black from the graphite tailings includes the following steps that a, by weight, 100 parts of graphite tailings, 40-55 parts of graphite tailings, 38-42 parts of sodium hydroxide, 8-10 parts of clay and 12-15 parts of water are mixed to be uniform, and a mixed material is obtained; b, after the mixed material is calcined for 40-60 min at the temperature of 450-580 DEG C, the mixed material is poured into water for quenching and aging; c, supernatant is taken, an alcohol solvent with the weight 0.5-0.8% that of the supernatant is added, acid is added for acidification, then aging is conducted, and the white carbon black is obtained after precipitates are dried.The method is easy to operate and low in cost, and the prepared white carbon black is small in average grain diameter and large in specific area.
Description
Technical field
The present invention relates to the use of the method that graphite tailing prepares white carbon, belong to field of waste resource comprehensive utilization.
Background technology
The fine white powder of white carbon, porous and polymolecularity, also known as hydrated SiO 2 or precipitated silica, is the general name of amorphous silicic acid and silicate, and water insoluble and most acid can be dissolved in sodium hydroxide and Fluohydric acid..The excellent properties such as white carbon has porous, polymolecularity, light weight, chemical stability is good, high temperature resistant, do not burn, electrical insulating property is good, are widely used in the industries such as rubber, plastics, coating, papermaking, foods and cosmetics.
The production method of white carbon, shows according to data both domestic and external, mainly the sedimentation method and the big class of vapor phase method two.The method of tradition preparing white carbon black by precipitation method is sodium silicate acidization, is with waterglass for raw material, is precipitated white carbon by precipitating with acid reaction, filter, wash, drying.Or with SiO2The higher mineral rock soil of content is raw material, is directly neutralized by wet method, white carbon is prepared in depositing technology production.These two kinds of method techniques are simple, and working condition is stable, less costly, and yield is big, is method commonly used in current commercial production；But directly neutralisation, the sedimentation method can not effectively remove foreign ion, produce substantial amounts of spent acid, waste water in production, and Caustic soda makes consumption, therefore affects quality and the utilization of the white carbon of preparation.
Patent CN201410700622.5, the method by albite, fluorite, 98% sulphuric acid under 100 DEG C～200 DEG C and self-generated pressure, be obtained by reacting the gaseous products containing silicon fluoride；Described gaseous products is led to hydrolysis in absorption tower and generates hydrolyzed solution；Described hydrolyzed solution is passed into aminolysis still, regulates pH value, ripening after neutralization by adding the method for ammonia, obtain dirty solution；Rough one-tenth white carbon.The method production technology program is complicated, use albite, fluorite, 98% concentrated sulphuric acid, the industrial chemicals such as ammonia, price is higher, causes that production cost is higher, the silicon fluoride gas of generation, and it is big to collect difficulty, and has stronger toxicity, is unfavorable for that environmental protection produces.
Patent CN201010245769.1, diatomite powder is joined in liquid carbon source by the method, dries under inert gas atmosphere after being sufficiently stirred for kieselguhr quality/carbon source liquid suspension, it is warming up to 600～1000 DEG C, calcines 3 hours, add strong base solution, heating, to boiling, keeps 24 hours；Standing after cooling, suspension is carried out solid-liquid separation, with water separation solid, repeated washing separates repeatedly, and gained waste liquid is processed, so as to generate white carbon.This inventive method complex manufacturing, it is necessary to high-temperature calcination 3 hours under 1000 DEG C of inert gas atmospheres, quenching in strong base solution, heating, to boiling, keeps 24 hours, and energy consumption is relatively big, the relatively low 250～400m of white carbon specific surface area of production2/g。
Graphite tailing, as the waste residue in exploitation graphite process, is mainly made up of quartz, microcline, plagioclase and sericite, and additionally containing a small amount of graphite, calcite, bloodstone, amphibole and chlorite etc., wherein quartz and feldspar content are more.Not being used for a long time, a large amount of graphite tailings cause contaminated environment, land seizure and safety problem, become the principal element of restriction graphite Sustainable Development of Enterprises.At present, utilize both at home and abroad the main path of graphite tailing be prepare fired brick, the construction material such as non-burning brick uses.But owing to brick strength is low, permeability rate is big, it does not have obtain spread and use.
The main component of table 1 graphite tailing
| Element | SiO2 | Fe2O3 | CaO | MgO | Al2O3 | TiO2 | V2O5 |
| Content (%) | 58～62 | 10～11 | 8～10 | 3～4.5 | 12～13 | 0.4～0.6 | 0.2～0.3 |
| Element | Na2O | K2O | MnO2 | CuO | NiO | P2O5 | Graphite |
| Content (%) | 0.6～0.8 | 0.8～1.0 | 0.03～0.05 | 0.1～0.2 | 0.05～0.08 | 0.1～0.3 | 2.2～3 |
Summary of the invention
Defect for existing white carbon, simultaneously because graphite tailing amount is big, dioxide-containing silica is high, sufficient silicon source can be provided, therefore, graphite tailing is used for preparing white carbon by the present inventor, can not only utilize by waste resource, and the white carbon mean diameter prepared be 12～20 μm, specific surface area be 380～550m2/g。
The technical problem to be solved is to provide a kind of method utilizing graphite tailing to prepare white carbon.The method comprises the following steps:
A, by weight ratio by graphite tailing 100 parts, sodium nitrate 40～55 parts, sodium hydroxide 38～42 parts, clay 8～10 parts, the mixing of 12～15 parts of water, obtain mixed material；
B, mixed material roasting 40～60min at 450～580 DEG C is fallen back in quenching, again ageing；
C, taking supernatant, add the alcohols solvent of its weight 0.5～0.8%, then be acidified with acid, then ageing, namely precipitation obtains white carbon after drying.
Preferably, in the above-mentioned method step a utilizing graphite tailing to prepare white carbon, after described mixing or mixing roll simultaneously, make mixed material cohere the aggregate in 1～2cm puffy.
Further, in the above-mentioned method step a utilizing graphite tailing to prepare white carbon, described in the time of rolling be 10～15min.
Preferably, in the above-mentioned method step b utilizing graphite tailing to prepare white carbon, described roasting carries out roasting in tunnel cave.
Preferably, in the above-mentioned method step b utilizing graphite tailing to prepare white carbon, described in be stirred while quenching, mixing speed is 30～45r/min, mixing time 15～20min.
Preferably, in the above-mentioned method step b utilizing graphite tailing to prepare white carbon, the time of described ageing is 90～120min.
Preferably, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, described supernatant need to be filtered.
Preferably, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, described alcohols solvent is any one in methanol, n-butyl alcohol or dehydrated alcohol.
Further, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, described alcohols solvent is dehydrated alcohol.
Preferably, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, described acidifying need to control temperature at 40～45 DEG C.
Further, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, needing to be stirred in described acidifying acid adding process, mixing speed is 30～45r/min.
Preferably, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, needing control ph after described acidifying is 8～9.
Preferably, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, described acidifying adopts titanium dioxide Waste sulphuric acid, and mass concentration is 18～22%.
Preferably, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, described digestion time is 8～12h.
Preferably, in the above-mentioned method step c utilizing graphite tailing to prepare white carbon, described baking temperature is 110～130 DEG C, the time is 6～8h.
The inventive method make use of graphite tailing to be primary raw material and coordinate other suitable raw materials to prepare white carbon, simple to operate, with low cost；Coordinating raw material to add sodium nitrate, thus reducing sintering temperature, without extra heating during quenching, reducing production cost；And with dehydrated alcohol for modifying agent, it forms alkoxyl with the hydroxyl reaction in white carbon, makes the hydrophobicity of white carbon strengthen, thus improve the yield of white carbon, reducing the particle diameter of crystallize, increasing its specific surface area.White carbon mean diameter prepared by the inventive method is 12～20 μm, specific surface area is 380～550m2/ g, functional.
Detailed description of the invention
A kind of method utilizing graphite tailing to prepare white carbon, comprises the following steps:
A, by weight ratio by graphite tailing 100 parts, sodium nitrate 40～55 parts, sodium hydroxide 38～42 parts, clay 8～10 parts, the mixing of 12～15 parts of water, obtain mixed material；
B, mixed material roasting 40～60min at 450～580 DEG C is fallen back in quenching, again ageing 90～120min；
C, take supernatant, supernatant is filtered, adds the alcohols solvent of its weight 0.5～0.8%；Add acid solution and it is carried out acidifying, precipitate out precipitation, ageing, refilter, be white carbon by after filtration cakes torrefaction.
In order to make material not lump when roasting, hole is bigger, quenching time easily precipitate out sodium metasilicate, it is preferred that in step a, after mixing or mix and roll simultaneously, make mixed material cohere the aggregate in 1～2cm puffy.Further, the time of rolling described in is 10～15min.
In order to make mixed material roasting more abundant, SiO in material2Fully decompose, with sodium hydroxide and sodium nitrate, the sodium oxide generated and react generation Na2SiO3, it is preferred that in step b, roasting adopts tunnel cave, and does not adopt rotary kiln.
Easily precipitating out sodium metasilicate during for quenching, it is preferred that in step b, be stirred while quenching, mixing speed is 30～45r/min, mixing time 15～20min.
In order to filter out the impurity in supernatant, it is preferred that in step c, supernatant need to be filtered.
For preventing acidifying heat release from producing acid mist, solution temperature local raises, and affects the precipitation of metasilicic acid precipitation, it is preferred that in step c, souring temperature controls at 40～45 DEG C.Further, being stirred during acidifying in acid adding process, speed is 30～45r/min.
In order to improve the precipitation capacity of metasilicic acid, it is preferred that in step c, need to control the pH after acidifying is 8～9.PH is lower than 7, and solution acidity is excessive, and the easy coagulation of metasilicic acid generates the cotton-shaped gelatinous precipitate of white, and the white carbon particle diameter of preparation is relatively big, and specific surface area is less；PH is more than 9, and metasilicic acid precipitation capacity is not enough, and cotton-shaped gel precipitation amount is little, and the particle diameter of the white carbon of preparation reduces therewith, although specific surface area increases, but yield is few, so pH should control 8～9 after acidifying.
In step c, acidifying selects conventional acid.But the Appropriate application for waste resource, it is preferred that in step c, the acid solution that acidifying adopts is titanium dioxide industry Waste Sulfuric Acid, and mass concentration is 18～22%.
In order to make metasilicic acid precipitation abundance, generate cotton-shaped gel precipitation completely, improve the yield of white carbon, it is preferred that in step c, described digestion time is 8～12h.
In order to make the fully de-a part water of metasilicic acid generate white carbon, and improving white carbon quality, it is preferable that in step c, described baking temperature is 110～130 DEG C, drying time is 6～8h.
The present inventor selects graphite tailing to be primary raw material, is adjuvant through test and Selection sodium nitrate, sodium hydroxide, clay, water.Wherein, due to the addition of sodium nitrate, the decomposition temperature of sodium nitrate, at 420～480 DEG C, resolves into sodium oxide and oxygen, and sodium oxide produces sodium silicate with the silicon dioxde reaction in graphite tailing again, thus the sintering temperature of the inventive method can be reduced to less than 500 DEG C；But α-SiO during roasting conventional mineral ground2It is changed into noncrystalline SiO2Required temperature is at 850～1050 DEG C, and institute is lower than traditional method sintering temperature in the process of the present invention, more saves energy consumption.
With the addition of sodium hydroxide in the inventive method, clay rolls, mixed material is made to cohere the aggregate in 1～2cm puffy, adopting tunnel cave, and do not adopt rotary kiln, in the material after roasting, sodium silicate growing amount is higher, material loft is high, porosity is big, will not be melt into bulk at relatively high temperatures, so that not needing extra heating during quenching of material after roasting, only needing simple agitation, sodium silicate can dissolve, from the material after roasting, quenching and go out.But traditional method needs solution at 80～90 DEG C of condition heating 2～3h of bath temperature, making unreacted silicon dioxide completely continue to react generation sodium silicate with sodium hydroxide and dissolve in the solution, production cost is higher.
The inventive method need not add during quenching heavy metal chelant, but select alcohols solvent as modifying agent through lot of experiments.Alcohol reacts with the activity hydroxy in white carbon molecule, generates alkoxyl substituted hydroxy and is bonded to the surface of white carbon molecule, makes the hydrophobicity of white carbon increase.Along with the carrying out replacing process, the hydroxyl alkoxy of white carbon molecular surface replaces more many, and its hydrophobicity is also more good, further improves the yield of white carbon, reduces the particle diameter of crystallize, increases its specific surface area.Preferred alcohols kind solvent is dehydrated alcohol.
Below in conjunction with embodiment, the specific embodiment of the present invention is further described, does not therefore limit the present invention among described scope of embodiments.
Embodiment 1
By weight, graphite tailing 100 parts, sodium nitrate 55 parts, sodium hydroxide 42 parts, clay 10 parts, 12 parts of water being rolled in two-wheel mill 15min, mix homogeneously is the aggregate of 1～2cm puffy；
Proceed in tunnel cave, roasting 60min at 550 DEG C, pours quenching in water cooling pond into, stirs 15min, ageing 2h；
Adding the dehydrated alcohol of liquid weight 0.8% after taking supernatant liquid filtering, with the titanium dioxide industry spent acid acidifying of 18～22%, solution temperature controls at 42 DEG C, pH controls 9, metasilicic acid crystallize, ageing 12h, filter pressing, filter cake 130 DEG C dries, and is prepared into the white carbon of white powder.
The white carbon yield that the present embodiment prepares is 79.2%, tests its mean diameter 12 μm by industry standard HG/T3601-2009, and specific surface area is 526m2/g。
Embodiment 2
By weight, graphite tailing 100 parts, sodium nitrate 55 parts, sodium hydroxide 40 parts, clay 10 parts, 12 parts of water being rolled in two-wheel mill 15min, mix homogeneously is the aggregate of 1～2cm puffy；
Proceed in tunnel cave, roasting 60min at 550 DEG C, pours quenching in water cooling pond into, stirs 15min, ageing 2h；
Adding the dehydrated alcohol of liquid weight 0.8% after taking supernatant liquid filtering, with the titanium dioxide industry spent acid acidifying of 18～22%, solution temperature controls at 42 DEG C, pH controls 9, metasilicic acid crystallize, ageing 12h, filter pressing, filter cake 130 DEG C dries, and is prepared into the white carbon of white powder.
The white carbon yield that the present embodiment prepares is 72.6%, tests its mean diameter 12 μm by industry standard HG/T3601-2009, and specific surface area is 511m2/g。
Embodiment 3
By weight, graphite tailing 100 parts, sodium nitrate 40 parts, sodium hydroxide 42 parts, clay 10 parts, 12 parts of water being rolled in two-wheel mill 15min, mix homogeneously is the aggregate of 1～2cm puffy；
Proceed in tunnel cave, roasting 60min at 550 DEG C, pours quenching in water cooling pond into, stirs 15min, ageing 2h；
Adding the dehydrated alcohol of liquid weight 0.8% after taking supernatant liquid filtering, with the titanium dioxide industry spent acid acidifying of 18～22%, solution temperature controls at 42 DEG C, pH controls 9, metasilicic acid crystallize, ageing 12h, filter pressing, filter cake 130 DEG C dries, and is prepared into the white carbon of white powder.
The white carbon yield that the present embodiment prepares is 76.7%, tests its mean diameter 12 μm by industry standard HG/T3601-2009, and specific surface area is 533m2/g。
Embodiment 4
By weight, graphite tailing 100 parts, sodium nitrate 55 parts, sodium hydroxide 42 parts, clay 10 parts, 12 parts of parts of water being rolled in two-wheel mill 15min, mix homogeneously is the aggregate of 1～2cm puffy；
Proceed in tunnel cave, roasting 60min at 450 DEG C, pours quenching in water cooling pond into, stirs 15min, ageing 2h；
Adding the dehydrated alcohol of liquid weight 0.8% after taking supernatant liquid filtering, with the titanium dioxide industry spent acid acidifying of 18～22%, solution temperature controls at 42 DEG C, pH controls 9, metasilicic acid crystallize, ageing 12h, filter pressing, filter cake 130 DEG C dries, and is prepared into the white carbon of white powder.
The white carbon yield that the present embodiment prepares is 70.8%, tests its mean diameter 12 μm by industry standard HG/T3601-2009, and specific surface area is 494m2/g。
Embodiment 5
By weight, graphite tailing 100 parts, sodium nitrate 55 parts, sodium hydroxide 42 parts, clay 8～10 parts, 12 parts of water being rolled in two-wheel mill 15min, mix homogeneously is the aggregate of 1～2cm puffy；
Proceed in tunnel cave, roasting 60min at 550 DEG C, pours quenching in water cooling pond into, stirs 15min, ageing 2h；
Adding the dehydrated alcohol of liquid weight 0.5% after taking supernatant liquid filtering, with the titanium dioxide industry spent acid acidifying of 18～22%, solution temperature controls at 42 DEG C, pH controls 9, metasilicic acid crystallize, ageing 12h, filter pressing, filter cake 130 DEG C dries, and is prepared into the white carbon of white powder.
The white carbon yield that the present embodiment prepares is 81.4%, tests its mean diameter 14 μm by industry standard HG/T3601-2009, and specific surface area is 426m2/g。
Embodiment 6
By weight, graphite tailing 100 parts, sodium nitrate 55 parts, sodium hydroxide 42 parts, clay 8～10 parts, 12 parts of water being rolled in two-wheel mill 15min, mix homogeneously is the aggregate of 1～2cm puffy；
Proceed in tunnel cave, roasting 40min at 550 DEG C, pours quenching in water cooling pond into, stirs 15min, ageing 2h；
Adding the dehydrated alcohol of liquid weight 0.8% after taking supernatant liquid filtering, with the titanium dioxide industry spent acid acidifying of 18%～22%, solution temperature controls at 42 DEG C, pH controls 8, metasilicic acid crystallize, ageing 12h, filter pressing, filter cake 130 DEG C dries, and is prepared into the white carbon of white powder.
The white carbon yield that the present embodiment prepares is 74.1%, tests its mean diameter 20 μm by industry standard HG/T3601-2009, and specific surface area is 386m2/g。
The present invention utilizes white carbon prepared by graphite tailing, titanium dioxide industry production spent acid to have the advantages such as whiteness height, mean diameter is little, specific surface area is big, and the filler being suitable for the industry such as rubber, papermaking produces；Meanwhile, preparation technology operating process is simple, with low cost, and energy-conserving and environment-protective have obvious economic benefit, wide application prospect.
Claims (10)
1. utilize the method that graphite tailing prepares white carbon, it is characterised in that: comprise the following steps:
A, by weight ratio by graphite tailing 100 parts, sodium nitrate 40～55 parts, sodium hydroxide 38～42 parts, clay 8～10 parts, the mixing of 12～15 parts of water, obtain mixed material；
B, mixed material roasting 40～60min at 450～580 DEG C is fallen back in quenching, again ageing；
C, taking supernatant, add the alcohols solvent of its weight 0.5～0.8%, then be acidified with acid, then ageing, namely precipitation obtains white carbon after drying.
2. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step a, after described mixing or mixing roll simultaneously, make mixed material cohere the aggregate in 1～2cm puffy.
3. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step b, described roasting for carry out roasting in tunnel cave.
4. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step b, described in be stirred while quenching, mixing speed is 30～45r/min, mixing time 15～20min.
5. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step c, described supernatant need to be filtered.
6. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step c, described alcohols solvent is any one in methanol, n-butyl alcohol or dehydrated alcohol；Preferably, described alcohols solvent is dehydrated alcohol.
7. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step c, it is 40～45 DEG C that described acidifying need to control temperature；Being stirred in described acidifying acid adding process, mixing speed is 30～45r/min.
8. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step c, needing control ph after described acidifying is 8～9.
9. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step c, described acidifying adopts titanium dioxide Waste sulphuric acid, and mass concentration is 18～22%.
10. the method utilizing graphite tailing to prepare white carbon according to claim 1, it is characterised in that: in step c, described baking temperature is 110～130 DEG C, the time is 6～8h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280153.5A CN105752994A (en) | 2016-04-29 | 2016-04-29 | Method for preparing white carbon black from graphite tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280153.5A CN105752994A (en) | 2016-04-29 | 2016-04-29 | Method for preparing white carbon black from graphite tailings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105752994A true CN105752994A (en) | 2016-07-13 |
Family
ID=56326315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610280153.5A Pending CN105752994A (en) | 2016-04-29 | 2016-04-29 | Method for preparing white carbon black from graphite tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105752994A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575443A (en) * | 2018-12-24 | 2019-04-05 | 中国地质大学（北京） | A kind of graphite tailing composite material and preparation method |
| CN110422849A (en) * | 2019-07-02 | 2019-11-08 | 西安科技大学 | A method of white carbon black is prepared using illite-structure clay mine |
| CN113150391A (en) * | 2021-03-19 | 2021-07-23 | 安徽瑞邦橡塑助剂集团有限公司 | Spherical graphite filler for rubber and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234116A (en) * | 2011-03-16 | 2011-11-09 | 河北联合大学 | Method for preparing nano white carbon black by utilizing iron tailings |
| CN103361495A (en) * | 2013-07-17 | 2013-10-23 | 内蒙古科技大学 | Method for extracting niobium from Bayan Obo mine tailing |
| CN103359744A (en) * | 2013-07-17 | 2013-10-23 | 内蒙古科技大学 | Method for extracting white carbon black from mine tailing |
| CN103395792A (en) * | 2013-07-17 | 2013-11-20 | 内蒙古科技大学 | White carbon black preparation method |
-
2016
- 2016-04-29 CN CN201610280153.5A patent/CN105752994A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234116A (en) * | 2011-03-16 | 2011-11-09 | 河北联合大学 | Method for preparing nano white carbon black by utilizing iron tailings |
| CN103361495A (en) * | 2013-07-17 | 2013-10-23 | 内蒙古科技大学 | Method for extracting niobium from Bayan Obo mine tailing |
| CN103359744A (en) * | 2013-07-17 | 2013-10-23 | 内蒙古科技大学 | Method for extracting white carbon black from mine tailing |
| CN103395792A (en) * | 2013-07-17 | 2013-11-20 | 内蒙古科技大学 | White carbon black preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 李洪君: ""利用石墨选矿尾矿砂生产白炭黑的研究"", 《非金属矿》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575443A (en) * | 2018-12-24 | 2019-04-05 | 中国地质大学（北京） | A kind of graphite tailing composite material and preparation method |
| CN110422849A (en) * | 2019-07-02 | 2019-11-08 | 西安科技大学 | A method of white carbon black is prepared using illite-structure clay mine |
| CN113150391A (en) * | 2021-03-19 | 2021-07-23 | 安徽瑞邦橡塑助剂集团有限公司 | Spherical graphite filler for rubber and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3088360B1 (en) | Method for producing nano silicon dioxide and nano calcium carbonate by using rice hull ash and flue gas of biomass power plant | |
| CN102602973B (en) | Method for synthesizing ultrafine calcium carbonate by utilizing carbide slag | |
| CN102320615B (en) | A kind of take SILICA FUME as the method that precipitated silica is prepared in raw material carbonization | |
| CN104512896B (en) | A kind of method utilizing aluminous fly-ash to prepare white carbon and white carbon | |
| CN105752994A (en) | Method for preparing white carbon black from graphite tailings | |
| CN112551561A (en) | Method for producing active magnesium oxide from waste residues of spices | |
| CN106276935A (en) | Waterglass co-producing white carbon black cleanly production technique | |
| CN103601210B (en) | Wilkinite one step alkali is fused into the method for zeolite | |
| CN102464347A (en) | Method for preparing high-molecule-ratio cryolite by using phosphoric acid industrial fluorine-containing waste gas | |
| CN109354029A (en) | A method of by coal ash for manufacturing for mesopore silicon oxide | |
| CN109665549A (en) | A kind of technique preparing calcium aluminum hydrotalcite using carbon dioxide | |
| CN103121699B (en) | A kind of method that potassium fluosilicate prepares potassium fluoride | |
| CN110562991A (en) | Production method of white carbon black for high-oil-absorption carrier | |
| CN102502669B (en) | Preparation method of nanometer silicon dioxide | |
| CN105776967A (en) | Preparation method for fiber needled felt-enhanced sodium metaaluminate-modified aerogel | |
| CN103539130A (en) | Technological method for preparing white carbon black from potassium feldspar | |
| CN106564924B (en) | The method for preparing white carbon black co-product calcium chloride using calcium silicates one-step method | |
| CN113929101A (en) | Method for co-producing white carbon black and fluosilicate by utilizing silicon tetrafluoride tail gas | |
| CN103539180B (en) | Technology for removing sodium out of industrial aluminium fluoride | |
| CN111017937A (en) | Method for preparing potassium fluoride and co-producing ultrafine white carbon black | |
| CN102583397A (en) | Method for preparing silicon dioxide and hydrogen chloride by means of hydrolysis of polysilicon by-product silicon tetrachloride | |
| CN107285336B (en) | A kind of 4A type molecular sieve and preparation method thereof | |
| CN102701222A (en) | Method for producing white carbon black with coal gangue | |
| CN107827134A (en) | The method for producing aluminum fluoride | |
| CN109809370A (en) | Efficient guaranteed reagent sulfuric acid production process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |