CN101618957A - Preparation method of dope - Google Patents
Preparation method of dope Download PDFInfo
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- CN101618957A CN101618957A CN200910094784A CN200910094784A CN101618957A CN 101618957 A CN101618957 A CN 101618957A CN 200910094784 A CN200910094784 A CN 200910094784A CN 200910094784 A CN200910094784 A CN 200910094784A CN 101618957 A CN101618957 A CN 101618957A
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Abstract
The invention provides a preparation method of a dope. The preparation method comprises the following steps: directly crushing mined pyrite to particles smaller then 4mm, drying or naturally airing till the water content is less than 6 percent, boiling and baking to desulfurize through to obtain cinder with sulfur content less than 1 percent, mixing the cinder or cinder which contains 2-20 percent of Fe2O3 and is obtained by removing iron with the common method and equipment with component kind or/and color kind of filling agent, adhesive and the like and grinding to obtain paint power or powder emulsion after being screened by 320 meshes. In addition, the invention also provides by-products of iron concentrate powder, sulfuric acid or sulfur. The invention has wide range of raw material sources and low cost, greatly reduces the production cost of the dope, and opens up a shortcut for comprehensive utilization of pyrite resources in middle-low grade. The dope can be applied to a dry cement wall surface as well as a preliminarily hardened wet wall surface which is just constructed; and a coating has favorable adhesive ability, rigidity and washing resistance ability and no environmental pollution.
Description
Technical field
The present invention relates to a kind of preparation method of coating, particularly a kind of method of utilizing pyrite cinder to prepare coating belongs to building material technical field.
Background technology
China's ferro-sulphur ore is abundant, accounts for 10% of world's total reserves, occupy the third place in the world.But based on middle low grade pyrite, rich ore (being sulphur content 〉=35%) only accounts for about 4% of total reserves, average geologic grade 17.68%.Sulfurous iron ore is the main sulphur resource of China, accounts for 80% of sulphur total resources; Sulfurous iron ore also is a kind of compound resource simultaneously.The recovery of sulphur is mainly by the production of sulfur by indigenous methods or washing system pyrite concentrate in China's sulfurous iron ore.The production of sulfur by indigenous methods, the yield of sulphur low (having only 38-40% usually) not only, but also serious environment pollution, economic benefit and social benefit are very poor.So ban use of the production of sulfur by indigenous methods from country in 1997; Sulfurous iron ore is produced pyrite concentrate, its sulphur low utilization of resources 58%, and the mine tailing of producing behind the pyrite concentrate is exactly and the symbiotic high titanium of sulfurous iron ore, iron kaolinite clay rock pyritiferous, and kaolinite content wherein is nearly 90%, is can be for the important renewable resource of utilization.But before not obtaining utilization, not only wasted a large amount of precious resources, and when a large amount of mine tailings can not get effectively handling, ecotope, industrial and agricultural production, people's health to the locality will be brought serious harm, environment such as waters is on every side caused severe contamination, because the waste water that is produced in the pyrite concentrate production technique will the severe contamination water body, comprise surface water and underground water, thereby cause the havoc of water and soil ecotope.
And on the other hand, annual decorative material for wall surface of producing of China such as coating etc. will consume a large amount of resources and the energy.In China, decorative material for wall surface mainly comprises five kinds of ceramic decoration material, glass decoration material, metal lagging, decorative stone and exterior coatings.Preceding 4 kinds of materials are compared with coating, and the one, the price comparison costliness, promptly the price of glass curtain wall, metal curtain wall and natural finiss stone material is too high; The 2nd, finishing material that has such as glass curtain wall also have the harm of light pollution and thermal pollution, are used as the shop of arterial traffic and the decorative curtain wall of mansion, have serious potential safety hazard, so existing disabled trend; The 3rd, it is heavier to conduct oneself with dignity, and will strengthen capital construction investment like this; The 4th, it is big that difficulty of construction is relatively wanted, the particularly construction of mosaic, glass Mosaic, ceramic tile etc., and time-consuming effort again, and too coarse when construction, when supervision is tight, can causes quality problems such as come off, even also can lead to security incident; The 5th, after metope comes off, influence the appearance and modeling of bed rearrangement mansion, and repair very difficulty or the like.
Exterior coating is compared with exposed wall facing brick, has advantages such as energy-conservation, rich color, weight reduction, construction reparation be convenient, also has the incomparable multifrequency nature of exposed wall facing brick simultaneously.Use exterior coating, 1/10th of the not enough lithotome of trimming cost, and the life-span is longer, has very strong economy.Exterior coating has advantages such as high efficiency (but mechanized operation), duration be short, easy to maintenance at the construction party mask.In addition, exterior coating itself is in light weight, helps antidetonation, also can not wear out with age or construct bad and can come off as ornamental brick, mosaic, causes the personnel safety accident.Durable, the anti-fouling performance of exterior coating is comparatively excellent, as: organosilicon-modified acrylic, pure silicone exterior wall paint and fluorine carbon lacquer or the like, they all have excellent self-cleaning property, thereby can keep secular resistance to crocking, make metope highlight cleaning, beautiful characteristic.The good decorating effect of exterior coating, with the exterior wall that it is decorated, buildings has rich color, lucid and lively characteristics, can also change color as required, make buildings keep feeling of freshness, and for other finishing material, it almost is impossible changing color.Exterior coating has excellent anti-cracking, water-repellancy, and unit elongation can reach more than 300%, with the environment friendliness, even can improve the situation of environmental pollution.
Coating has the irreplaceable advantage of wall brick, adopting exterior coating to carry out construction and decoration is accepted by each side more and more, local governments such as Beijing, Shanghai, Chongqing, Jiangsu, Dalian, Kweiyang clearly regulation Highrise buildings must use exterior coating to fit up, and ban use of mosaic.Ceramic veneer is used in the residential exterior wall restriction, promotes the use of up-to-standard building external paint.According to pertinent data statistics, with regard to coating market, the world, the rate of growth in exterior coating every year is 7%, is higher than the average speed of development of coating industry 5%.World's coating ultimate production is about 2,800 ten thousand tons at present, and wherein building coating accounts for 40%～50%.Account for 52% of coating output at American Architecture coating, Italy is 57%, Germany is 55%, France is 55%, Japan is 40%, and building coating is a class coating of consumption ratio maximum in the developed country.Developed country's pre-capita consumption building coatings such as the U.S. are more than the 10kg, and the still not enough 1kg of China.In developed country, what the decorating inner and external walls finishing was with the most use is building coating.Western European countries' exterior wall is almost used coatings decoration entirely, in the U.S., and 70% skin coatings decoration; The residential exterior wall of Singapore has employing coatings decoration more than 85%.Not only use exterior coating in a large number in developed regions such as America and Europe, Japan, Thailand's exterior coating finishing has accounted for 50% of finishing amount.China's Eleventh-Five Year Plan proposes " will to develop a circular economy economizing on resources as fundamental state policy, preserve the ecological environment, accelerate to build a resource-conserving and environment-friendly society, promote economic development and population, resource, environment coordination.Promote IT application to our national economy and society, take a new road to industrialization conscientiously, adhere to saving development, cleaning development, security developments, realize Sustainable development." and build resource-conserving, environmentally friendly society, realize Sustainable development, just must limit those power consumptions greatly, the development of the industry of poor stability.This be undoubtedly these long those strength that disappear of exterior coating and wall tile contend with in strong support the most.
China's coating material production is mainly done the stopping composition preparation with proprietary materials such as titanium dioxide, zinc sulfide white at present, and these stopping composition need special production, and the cost height, and resource and energy consumption are very big.
Summary of the invention
The object of the present invention is to provide the method that low grade pyrite is produced exterior coating in a kind of the utilization, to reduce cost, obtain the exterior coating of high-quality favorable rates, for a shortcut is opened up in the comprehensive utilization of middle low grade pyrite resource.
The present invention finishes by following technical proposal: a kind of preparation method of coating is characterized in that with middle low grade pyrite be raw material, the process following process steps:
After A, the sulfurous iron ore that exploitation is come out directly are broken into particle less than 4mm, through 80 ℃-200 ℃ oven dry or stack naturally and dry, must water content less than the dried material of 6% (mass ratio);
B, the dried material of A step being sent in the stoving oven, is under 800～1100 ℃ of conditions in temperature, and fluidized bed roasting desulfurization routinely obtains containing the gas of sulfurous gas and the sulphur content burning slag less than 1% (mass ratio);
C, with B step gained burn slag or with B step gained burn slag through conventional method and apparatus deironing to the Fe that burns in the slag
2O
3Content is that slag is burnt in the deironing of 2～20% (mass ratioes), with the composition class or/and color class weighting agent and caking agent mixes by following mass percent and levigate to behind 320 orders, get the coating powder:
Burn slag 30～85%
Composition class weighting agent 0～23%
Color class weighting agent 0～25%
Caking agent 10～30%;
Perhaps
C1, with B step gained burn slag or with B step gained burn slag through conventional method and apparatus deironing to the Fe that burns in the slag
2O
3Content is that slag is burnt in the deironing of 2～20% mass ratioes, with the composition class or/and color class weighting agent and caking agent, auxiliary agent, water get the raw materials ready by following mass percent:
Burn slag 26～60%
Composition class weighting agent 0～35%
Color class weighting agent 0～25%
Caking agent 20～45%
Auxiliary agent 2～9%
Water 10～23%
Add in burning slag after composition class and color class weighting agent together wear into mixed powder below 320 orders, add caking agent, auxiliary agent and water again, mix, coating emulsion gets product.
When described step C gained coating powder is constructed at the scene, prepare and whisk evenly by following mass percent, the mobile coating that furnishing has certain viscosity can use:
Coating powder 44～71%
Auxiliary agent 3～11%
Water 26～53%.
Per-cent of the present invention is mass percent.
The stoving oven of described steps A is the conventional fluidizing reactor of the existing production of sulfur from pyrite, and this stove is a continuous roasting process when roasting pyrite, be that sulfurous iron ore enters from going into fire door, after high-temperature area is finished the fluidized bed roasting desulfurization, come out of the stove by plug for outlet, therefore, only need the control maturing temperature to get final product.
The gas that described step B gained contains sulfurous gas send sulfuric acid or sulphur production process, with conventional sulfuric acid or the sulphur technology of producing, produces sulfuric acid or sulphur.
Composition class weighting agent among described step C or the step C1 and color class weighting agent, that looks coating products requires two kinds all to select for use, does not perhaps select for use for two kinds, perhaps only selects wherein a kind of for use.
The composition class weighting agent of described step C or step C1 is commercial: one or more in light calcium carbonate, water-ground limestone, talcum powder, sericite, titanium dioxide, zinc sulfide white, wollastonite, the silica powder etc., concrete the selecting the requirement of looking coating products for use of kind and determining.
The color class weighting agent of described step C or step C1 is commercial: the iron oxide black in the mineral dye, carbon black, iron oxide red, cadmium red, iron oxide yellow, lead-chrome yellow, cadmium yellow, iron are green, in phthalocyanine green, phthalocyanine chrome green, lead chrome green, chrome green, barba hispanica, cobalt blue, ultramarine etc. one or more, perhaps/and be in the husky Huang of toluidine red, red, the Chinese in the pigment dyestuff, fast light Huang, organic yellow, the nickel azophosphine etc. one or more, specifically select for use, look the color of coating products requirement and determine.
The caking agent of described step C is one or more in cement, phosphoric acid salt, silicate, milk of lime in the commercial inorganic adhesive etc.
The caking agent of described step C1 is commercial: one or more in polyvinyl alcohol, modified polyvinyl alcohol, acrylic resin, acrylic resin modified, Resins, epoxy, modified epoxy, unsaturated polyester, urethane, ethenoid resin, Nitrocellulose, modification Nitrocellulose, urea-formaldehyde resin, terpolycyantoamino-formaldehyde resin, Synolac, modified alkyd resin, resol, modified phenolic resins, organosilicon, organic fluorine, polyimide resin etc., and specifically select the requirement of looking coating products for use and determine.
The auxiliary agent of described step C or step C1 is one or more in the following commercial conventional auxiliary agent: ethylene glycol monoethyl ether, ethylene glycol monobutyl ether or phenylcarbinol membrane-forming agent; Dimethyl silicone oil, tributyl phosphate or SPA-202 defoamer; The Sodium Benzoate sanitas; 1,2-benzisothiazole-3-ketone (being biocide mildewcide BIT) or
The C15 fungicidal preservative; Water-based wetting dispersing agent H-10, water-based are divided wetting powder H-40, high-effective low foam wetting agent WK-2035; Tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, trisodium phosphate or fatty acid polyglycol ester dispersion agent; PTF or XM-2 thickening material or BH-38 emulsion thickener; Dibutyl phthalate or dimixo-octyl phthalate toughner; Flow agent 457 or flow agent 466 (modified silicone) or TJ-300 flow agent; Polyvinyl alcohol, modified polyvinyl alcohol, acrylic resin, acrylic resin modified, Resins, epoxy, modified epoxy or the bonding auxiliary agent of carboxymethyl cellulose etc. are specifically selected the requirement of looking coating products for use and are determined.
The selection of the deferrization process among described step C or the step C1 is looked follow-up coating material production and painting color and is required and determine.
The burning slag deironing of described step C and step C1 is: with conventional magnetic selection method is after conventional magnetic separator and magnetic separation process carry out magnetic separation, iron-holder greater than 58% fine iron breeze.
The burning slag of described step C, composition class weighting agent, color class weighting agent, caking agent solid material can be worn into respectively earlier less than behind the 320 purpose powder, prepare again.
The burning slag of described step C1, composition class weighting agent, color class weighting agent solid material can be worn into respectively earlier less than behind the 320 purpose powder, prepare again.
The present invention utilizes pyrite cinder to replace filler and part iron oxide red pigments such as expensive titanium dioxide and Li De powder, is because desulfurization with roasting technique obtains burning slag and is rich in Al
2O
3, SiO
2, Fe
2O
3, TiO
2, CaO, unformed Al wherein
2O
3, SiO
2Can replace expensive titanium dioxide, α-Fe
2O
3It is again a kind of mineral dye, therefore after levigate is a kind of fine coating weighting agent, can make multiple different color and cheap high-quality building coating, because raw material sources are wide, cost is low, can greatly reduce the production cost of coating, help promoting the rapid popularization of China's exterior coating.The present invention has also opened up the good way of a comprehensive utilization for the middle low grade pyrite resource of China's abundant, the utilization of the holostrome of low grade pyrite exploitation circulation comprehensive meets the requirement of developing a circular economy in realizing.Coating provided by the invention can not only be constructed on the exsiccant cement wall surface, and can just construct soon but tentatively hardened wet and construct on the metope, coating has good adhesive ability, hardness and washability ability, environmentally safe.When coating powder product provided by the invention is constructed at existing field boundary, only need whisking in the addings powder-type coatings such as water, bonding auxiliary agent and toughness reinforcing, leveling auxiliary agent even, the mobile coating that furnishing has certain viscosity can use, coating emulsion provided by the invention can directly use, but the byproduct fine iron breeze direct marketing that provides, the sulfur dioxide gas of output is used for further producing sulfuric acid or sulphur is produced in reduction.The comprehensive utilization of resources degree is high.
Embodiment
Below in conjunction with embodiment the present invention is described further.
Embodiment 1
The sulfurous iron ore (containing S:19%) that Yunnan prestige is exploited out is ground into the particulate less than 4mm, stack naturally again dry after, moisture dried material less than 6% is standby; Above-mentioned dried material is added in the conventional fluidizing furnace, is to carry out conventional fluidized bed roasting desulfurization under 850～950 ℃ of conditions in temperature, must burn slag; Add the white portland cement tackiness agent in burning slag, other adds light calcium carbonate, the talcum powder auxiliary packing is levigate together to-320 orders, promptly gets red powder-type coating.During existing field boundary construction, even with whisking in the addings powder-type coatings such as water, polyvinyl alcohol auxiliary agent and toughness reinforcing, flow agent, the mobile coating that furnishing has certain viscosity can use.This coating can not only be constructed on the exsiccant cement wall surface, and can just construct soon but tentatively hardened wet and construct on the metope, coating has good adhesive ability, hardness and washability ability, environmentally safe.Its prescription is as table 1.
The sulfur dioxide gas that the desulfurization of sulfurous iron ore fluidized bed roasting obtains is pyrite-based sulfuric acid production explained hereafter sulfuric acid routinely.
Embodiment 2
To protect sulfurous iron ore (the containing S:16%) raw material of dragon exploitation from the Sichuan Gulin, and be ground into the particulate less than 4mm, and stack naturally and dry, it is standby less than 6% material to get water content; Above-mentioned material is added in the conventional fluidizing furnace, in temperature is under 900～980 ℃ of conditions, carry out conventional fluidized bed roasting desulfurization and must burn slag, to burn ground-slag and be broken to 0.5mm～0.1mm fine powder, in magnetic field boundary intensity is under 2000～12000GS condition, carry out dry magnetic separation with conventional dry-type magnetic extractor, make the Fe that burns in the slag
2O
3Content is less than 4%, and it is the amorphous Al that forms after the kaolinite calcining and decomposing that the slag main component is burnt in the choosing back
2O
3And SiO
2, Detitanium-ore-type TiO
2With a spot of Fe
2O
3And Fe (OH)
3Burn a small amount of light calcium carbonate of adding, talcum powder, sericite in powder auxiliary packing in the slag at this, add lead-chrome yellow color weighting agent again, levigate together to-320 orders, adding the modification organosilicon crylic acid latex afterwards is tackiness agent, adds auxiliary agent again and water mixes, and is the safran coating emulsion, this coating meets the mark GB/T9755-2001 of exterior wall coating material of synthetic resin emulsion country of the People's Republic of China (PRC), has good weather resistance and contamination resistance.Its prescription is as table 2.
The sulfur dioxide gas that the desulfurization of sulfurous iron ore fluidized bed roasting obtains high sulphur coal boiling reduction is routinely produced sulphur.
The smart powder iron content of iron that the deironing of burning slag obtains directly becomes product to sell more than 58%.This patent is not limited by illustrated embodiment.
Table 1
Table 2
Claims (6)
1, a kind of preparation method of coating is characterized in that with middle low grade pyrite be raw material, the process following process steps:
After A, the sulfurous iron ore that exploitation is come out directly are broken into particle less than 4mm, through 80 ℃-200 ℃ oven dry or stack naturally and dry, must water content less than the dried material of 6% mass ratio;
B, the dried material of A step being sent in the stoving oven, is under 800～1100 ℃ of conditions in temperature, and fluidized bed roasting desulfurization routinely obtains containing the gas of sulfurous gas and the sulphur content burning slag less than 1% mass ratio;
C, with B step gained burn slag or with B step gained burn slag through conventional method and apparatus deironing to the Fe that burns in the slag
2O
3Content is that slag is burnt in the deironing of 2～20% mass ratioes, with the composition class or/and color class weighting agent and caking agent mixes by following mass percent and levigate to behind 320 orders, get the coating powder:
Burn slag 30～85%
Composition class weighting agent 0～23%
Color class weighting agent 0～25%
Caking agent 10～30%;
Perhaps
C1, with B step gained burn slag or with B step gained burn slag through conventional method and apparatus deironing to the Fe that burns in the slag
2O
3Content is that slag is burnt in the deironing of 2～20% mass ratioes, with the composition class or/and color class weighting agent and caking agent, auxiliary agent, water get the raw materials ready by following mass percent:
Burn slag 26～60%
Composition class weighting agent 0～35%
Color class weighting agent 0～25%
Caking agent 20～45%
Auxiliary agent 2～9%
Water 10～23%
Add in burning slag after composition class and color class weighting agent together wear into mixed powder below 320 orders, add caking agent, auxiliary agent and water again, mix, coating emulsion gets product.
2, the preparation method of coating according to claim 1 when it is characterized in that described step C gained coating powder is constructed at the scene, prepares and whisks evenly by following mass percent, and the mobile coating that furnishing has certain viscosity can use:
Coating powder 44～71%
Auxiliary agent 3～11%
Water 26～53%.
3, the preparation method of coating according to claim 1, the selection that it is characterized in that the burning slag deferrization process among described step C or the step C1 is looked follow-up coating material production and painting color and is required and determine.
4, the preparation method of coating according to claim 1 is characterized in that the burning slag deironing of described step C and step C1 is: after promptly using conventional magnetic separator and magnetic separation process to carry out magnetic separation with conventional magnetic selection method, iron-holder greater than 58% fine iron breeze.
5, the preparation method of coating according to claim 1 is characterized in that burning slag, composition class weighting agent, color class weighting agent, the caking agent solid material of described step C worn into respectively less than behind the 320 purpose powder earlier, prepares again.
6, the preparation method of coating according to claim 1 is characterized in that burning slag, composition class weighting agent, the color class weighting agent solid material of described step C1 worn into respectively less than behind the 320 purpose powder earlier, prepares again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100947848A CN101618957B (en) | 2009-07-30 | 2009-07-30 | Preparation method of dope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100947848A CN101618957B (en) | 2009-07-30 | 2009-07-30 | Preparation method of dope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101618957A true CN101618957A (en) | 2010-01-06 |
| CN101618957B CN101618957B (en) | 2012-02-08 |
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ID=41512380
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941741A (en) * | 2012-11-21 | 2013-02-27 | 广州酷漫居动漫科技有限公司 | Method for printing ultraviolet (UV) ink onto furniture boards |
| CN103614032A (en) * | 2013-12-10 | 2014-03-05 | 广州富美奥涂料有限公司 | Water-based paint |
| CN105084323A (en) * | 2015-09-15 | 2015-11-25 | 刘慧南 | System and method for manufacturing sulfur and iron oxide by using pyrite |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102464B (en) * | 1985-04-01 | 1988-03-16 | 山东省新材料研究所 | Producing method of black ceramic products materials and products |
| CN100455545C (en) * | 2007-04-26 | 2009-01-28 | 武汉钢铁(集团)公司 | Slag antiseizing spraying material for desulfurization hot-metal bottle |
-
2009
- 2009-07-30 CN CN2009100947848A patent/CN101618957B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941741A (en) * | 2012-11-21 | 2013-02-27 | 广州酷漫居动漫科技有限公司 | Method for printing ultraviolet (UV) ink onto furniture boards |
| CN102941741B (en) * | 2012-11-21 | 2014-10-29 | 广州酷漫居动漫科技有限公司 | Method for printing ultraviolet (UV) ink onto furniture boards |
| CN103614032A (en) * | 2013-12-10 | 2014-03-05 | 广州富美奥涂料有限公司 | Water-based paint |
| CN105084323A (en) * | 2015-09-15 | 2015-11-25 | 刘慧南 | System and method for manufacturing sulfur and iron oxide by using pyrite |
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| Publication number | Publication date |
|---|---|
| CN101618957B (en) | 2012-02-08 |
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