安徽某地硫酸烧渣的工艺矿物学研究（Study on process mineralogy of sulfuric acid residue from a certain place in Anhui）

安徽某地硫酸烧渣的工艺矿物学研究（Study on process mineralogy of sulfuric acid residue from a certain place in Anhui） 安徽某地硫酸烧渣的工艺矿物学研究(Study on process mineralogy of sulfuric acid residue from a certain place in Anhui) Process mineralogy research of sulfuric acid residue in Anhui.Txt it is difficult to love one person, but it is difficult to hate one person more difficult, but to love and hate the most difficult one. Love can never be a balance, want to be happy in love will be willing to grieve! Some troubles are invented by ourselves, but we accept them as real. This paper is contributed by zhang6784376 Pdf documents may experience poor browsing on the WAP side. It is recommended that you select TXT first or download the source file to the local machine. VIP information Third issue of June 2006 MutupsiztofMieasucsliroeUtianonrlReorepli Comprehensive utilization of mineral resources No.3 Jn06u.20 Study on process mineralogy of sulfuric acid residue from a certain place in Anhui Ganyonggang (Zijin Mining Group Co., Ltd., Jianfu, Shanghang, 34o620) Abstract: by means of X ray diffraction, scanning electron microscopy, electron probe microanalysis, electron spectroscopy and chemical multi-element analysis, a process ore of pyrite cinder in Anhui has been prepared The relationship between process mineralogy and mineral processing technology was discussed. Keywords: pyrite cinder; material composition; comprehensive utilization CLC number: 71 document code: Article Number: 0 to 3 (0603X8A105220) 30250600 Before l One word 15 of pyrite cinder is emitted about 7 x 1 per year. .t total 0t occupation 13 of waste residue. Because most of the sulfuric acid slag landfill treatment, which appeared on the red rain fly, red sky water "phenomenon, not only caused serious environmental pollution, crowded occupied land, reduction of arable land, and is also a serious waste of resources. China is a country with relatively insufficient resources. Among the 4 important mineral resources, l has a variety of O in 5 Meet demand. At present, China's iron ore production capacity than the third century I Mineral resources are the important material basis for human survival and development 9% of China's energy and 8% of its materials come from mineral resources. 55 with the development of productive forces, the improvement of science and technology, human use . The types and quantities of mineral resources are more and more, and the scope of utilization is more and more wide. So far, the world has found that there are 3030 kinds of minerals, of which 1000 kinds of industrial significance, various mineral mined each year more than 1 billion T5, the waste amounted to 10, 00 more than t billion package. The output value of basic industry and related processing industry with mineral products as raw material Less than 1%, 0] as the sulfuric acid slag utilization, can greatly ease the supply of iron ore is insufficient, can not only protect the environment, but also to avoid the waste of resources, and also won the profits for the enterprise. The utilization of sulfuric acid residue has been paid much attention abroad, and good results have been achieved in comprehensive utilization. The utilization ratio of pyrite cinder in Japan was 7%, 0, 8% and 8%, and 10 08% and 05 in Germany and Spain respectively. The utilization ratio of pyrite cinder in our country is low, not less than 0% to 5%. An important reason for this phenomenon is sulfuric acid burning 0 It accounts for about 7% of the total industrial output value. But in the process of opening 0 mineral resources, environmental pollution is caused by discarded large amounts of waste rock and tailings Dyeing has become the most important problem in the sustainable development of the world today One of。 The mineral resources development is of great importance to the social, economic and ecological environment both in the world and in china.... Sulfuric acid slag (also called sulfuric acid residue, iron ore cinder and iron ore cinder) produced in sulfuric acid production in China is the Yellow sulfur produced by chemical industry, The quality of slag is not high, and its properties are complex, such as low grade iron, The content of sulfur and silicon dioxide is higher. Therefore, it is necessary to develop and utilize sulfuric acid reasonably The technological mineralogy of pyrite cinder must be comprehensively studied. on One of the major solid wastes. 08t. produces 1 sulfuric acid per product- Peettosnpeettd, tcueadpaeottoevriuioiigWeieeietrsnhd.IrsnsysrtrnhsnesfhemclefmXnnirns - meutucnttrjalwvigtyX - ydfatnXD adXryfoecneCFnliaenXDiesytoyadmoaebrico (Rdain) - ursec (R) aayssdoRtniern - als.Bnthluregt Anwapoitmtoauafectsyrt (Ieli), E P C L E DT RX ER E内我AI R)O y r-hoo我R,啼H马H O C T ER NNT o f DOP L PT W H G E SPO PSD H L RCUE温哥华TNO L UA EGT一dsusdi E iadteotie HS OT T OE。T EE O亚行敖F E LR我我SE DTL N B NDP aecn N T C W W C H II莫N个h ES W R O AE我DVD一个C S L D H H W AE EH ERSL DTA xNi我我为卢 O eecmp r WT我U L R T Y R。T EUT所以E T ij我R C我CR D H N I Y L M S H N L VM U T S N 4，5%，5，4，6，2，7。 4% H D O P lg P T:u t即P E Y我T O E M T N R WA Y R H O O我问我V H N D B D O的LSS我我的E N T S H SA L，E E D IB中 小民营企业，D C U D G T R T C U N O O梅尔我C T E R L。TB我 L O L E N N E T R L F莫Sr R T FL U我M O L SL AE R我 柯RSV R CLE Hyr hooi;YD RCI(R;R frnert TNI;Q atiepae ywod: EMI我;DOP L PE X R我ATN X D)E EC我iesy U四小时UT G T F O T N T S E EON 是的，我是 收稿日期:0 5 83 2 0 0 0,, 作者简介:甘永刚(96，，1一)男 工程 路基工程安全技术交底工程项目施工成本控制工程量增项单年度零星工程技术标正投影法基本原理 师，冶金工程硕士，7在读主 要从事选矿工艺技术研究。 维普资讯 3期第 Gan Yonggang: Process Mineralogy of sulfuric acid residue in a certain place in Anhui 33? For this reason, the author has carried on the material to the typical sulfuric acid cinder in a certain place in Anhui Study on composition, characteristics and process characteristics. mine The contents of C, bzuP and N are all over standard, so the iron concentrate should be removed In addition to. Zero 2 substance composition The results of spectral analysis and multi-element analysis of pyrite cinder are shown in table 12-. According to the data above, it is the main element that can recover iron in burning slag. The gold can be recovered comprehensively, and the content of other elements is low, which can not meet the requirement of comprehensive utilization. According to the standard of iron concentrate, element s, Under the microscope, the pyrite minerals are mainly magnetite (eO), hematite (eO), hematite (eO) F, F, and rF. There are many kinds of gangue minerals, mainly quartz (I, SO), others are hard Gypsum (aO) epidote, aFA2SO), CS C2eI (SO) I2 (i3O2 (H) and feldspar (I, O, KASO, etc.). Table 3 is I in sulfuric acid slag Contents of main minerals. Table 1 spectral analysis results of pyrite cinder (knot) burning magnetite Ten Hematite, pyrrhotite, pyrite, magnetic pyrite Thirty-two Britain Anhydrite Feldspar Serpentine pomegranate calcite It can be seen from table 3 that the main useful minerals in the slag are magnetite, hematite and hematite. The harmful element s is mainly enriched in pyrite, See more, to shape coenobium, often there are two main forms: a Is a semi self crystal shape, xenotopic and magnetite, Magnetic Hematite intergrowth, often Pyrrhotite and anhydrite. Quartz content is high. Magnetite or hematite in the vicinity of magnetite is parallel to magnetite Liansheng; another is a magnetite disseminated, honeycomb, was a small Main mineral characteristics of 3 pyrite cinder 31 magnetite The gangue mineral filling, and a hull shape of magnetite wrapped in gangue minerals. Because of the intergrowth of magnetite and the gangue minerals The effect is very poor when magnetic separation method is used. Therefore, Magnetite is the main iron mineral in sulfuric acid residue, its content accounts for about 1% of iron minerals, 4 slices are opaque, reflective magnetite is gray, micro brown, homogeneous. The crystal size of monomer is 00 1 Between l01r.5m, a, where 0001m. 5 -.0m is the majority, and the monomer is not An effective method should be adopted to destroy the structure before separation. Results of electron microprobe chemical analysis of magnetite are shown in table 4. The magnet is calculated according to the electron probe chemical analysis results of two points Table 4 electron probe analysis results of magnetite SO.i COA23lOa10 (2) Mgo ZOn 0.o87041.7 Pb 0.7320.942 MnO 0.6140.819 TOi2 0oO.9004.6 A23sO 0o6.90.700 COu 009.30O5.4 N2a0 005.1O08.2 1570212.80.00.1.2.99804391880460.50.41024.7.7650.8 The crystal chemical formula of ore is: Content is high, it is difficult to perform respectively accounted for 22% and 20 of conventional processing method, The degree of crystallization is worse than that of natural magnetite. But according to the morphology and composition of magnetite spectrum shows that iron magnetic particle poor crystalline, porous, MgA was 1, with micro elements, and the surface adhesion of magnetite particles with fine gangue minerals. Fig. 1 X ray diffraction pattern of magnetite in pyrite cinder Infinity inch 32 hematite Hematite is the main iron mineral in sulfuric acid residue, which accounts for the residue of sulfuric acid La About 5% of iron minerals. Is blue in the viewfinder, 5 significant heterogeneity, irregular shape, rectangular, round, oval shaped red iron crystal is very poor, mostly xenotopic, euhedral, and even in half Eighty Seventy Sixty Fifty Forty Thirty Twenty The pores are filled by gangue, and the size of the particles is different. The particle size is 00m, accounting for more than 8% of the hematite particles. Microanalysis of hematite in.8m0 table 5 by electron microprobe microanalysis. Fig. 2 x ray diffraction Atlas of natural magnetite Table 5 electron microprobe analysis results of hematite Numbering One 佛E 8 9 7.4 8 2 6. 2 所以，I2 05、9、0. 7、1 有限公司 0 1. 4 0 1. 2 0 3 0 1. 8 0. 7 5 10(2 0、01、0、0. 1 莫克 0 1. 9 0 8. 4 ZO N 00、6、0、1. 3 P B 0 1. 7 0 9. 2 Mn O 06、4、1、1. 9 共你 00、7、0、1. 8 C2 3 R0 0，1. 6，00，7 N2 A0 009，5，00，8 二 根据两点的电子探针微区化学成分 分析 定性数据统计分析pdf销售业绩分析模板建筑结构震害分析销售进度分析表京东商城竞争战略分析 结果得出赤铁矿晶体化学式 为: (E柏N 02 g05a0 O S。oc0o F 7 a09m O1 L们4我0 .. 5 .. 09 9 0. 4 AOO kn00 9铜0 5 03 3 0 4 0)我0 4 22 0. 7 .. 其铁含量为6. 5 7 7% 2 1%与理论值相差.. 9 from the crystal chemistry of hematite: the particles are impure and contain N and a MgA, I, 1S and other trace elements. However, compared with magnetite in sulfuric acid residue, the content of trace elements is less. The results show that the iron ore particles are porous and loose, and there are tiny gangue mineral particles adhering to the hematite surface. 33 gangue minerals 000.0VF = 06S491.4002 Figure 3 is quartz ore pollution energy spectrum diagram of anhydrite (aO) content of anhydrite in sulfuric acid slag is CS less, crystal degree is good, filling in iron ore in hundreds of granular. According to the multi node anhydrite particle energy spectrum diagram (see Figure 4 can be seen: anhydrite) particles in the same pure sulfuric acid slag, containing iron more, its weight percentage reached 1.3, while 79% also contains a small amount of A and S elements. Li The main gangue minerals in the slag are quartz and anhydrite. Quartz (I: British is the main gangue mineral, SO) in sulfuric acid residue In the transmission light colorless and transparent, no cleavage, a subhedral grain shape, he Like. The size of the particles varies from 30 to 10m, 01 and most of the X particle surface pollution on the iron minerals, quartz particles are common mineral inclusions, the formation of incrusting. There are also a lot of fine quartz filled in iron ore. According to the composition of the quartz particles (Figure 3 can see chart): Quartz impure acid residues, with large amounts of iron, sulfur content and the weight percentage as high as 2.5, that of sulfuric acid slag stone 53% the iron mineral particles are seriously polluted. In addition to iron, it also contains iron A small amount of A, aP, nSM, and other elements, while the 1MgC, bZ, and nK from It is found that the C of anhydrite particles in sulfuric acid slag is in a element Apparent excess. The reason for this phenomenon may be that pyrite is in oxygen In the process of producing sulfuric acid by roasting, S and S are produced, and OO is absorbed Attached to the sulfuric acid residue in the fractures occurred chemical reaction of a and CO particles in the pyrite cinder, as part of a certain activity of CS absorption of epiphytic aO on the surface of CO particles, a considerable number of Ca and a elements in CO still exists in the form of gypsum particles. In most cases, a is in the process The direct beneficiation of sulfuric acid slag has a very unfavorable influence. VIP information Third phase Gan Yonggang: Process Mineralogy of sulfuric acid residue in a certain place in Anhui 35? (1) the sulfur content of magnetite, iron ore and gangue minerals in acid residue The production of slag concentrate is influenced seriously by the composition and characteristics of slag Between magnetite and hematite ore and gangue slag in intergrowth form In. Magnetite and hematite are disseminated and honeycombed with fine gangue 000.0VF = 92S811200.4 Filling and magnetite, hematite is crustified wrapped with gangue. Burning slag mineral intergrowth of this complex affects Concetrates products Bit enhancement. When the magnetite is extracted by weak magnetic separation process, due to the magnetic property in the slag Figure 4 energy spectrum composition of anhydrite particle Next, the main gangue mineral in the sulfuric acid slag in fluidized roasting sulfuric acid production process by iron minerals disseminated, the phenomenon of excess calcium in hard plaster that sulfuric acid residue of anhydrite in the minerals may be in pyrite oxygen Formed after chemical roasting. The loose structure of iron ore makes it form strong magnetic agglomeration, and the gangue inclusion is serious. Magnetite is crustified wrapped with gangue, so that a large number of Gangue into magnetic concentrate. The density of iron minerals in the slag is lower than that of the natural iron minerals, Technological characteristics of minerals in 4 pyrite cinder 41 the physical properties of minerals Iron ore is mostly honeycomb structure, and its density difference with gangue minerals is small, which makes the separation effect of gravity separation process very poor. The application of reverse flotation technology can achieve a good separation effect, but by the iron ore gangue was crustified wrapped hard to go up, still cannot obtain the ideal separation index. The slag belongs to the regenerated mineral, and the middle hematite and its magnetite are all transformed from pyrite, and the pyrite produces a large amount of sulfur dioxide gas when it is melted The physical properties of minerals are mainly hardness, specific gravity, specific magnetic susceptibility, etc.. The slag particles are loose and porous due to the desulfurization of pyrite cinder during roasting. Cinder with middling mineral crystal is earthy, powder, jelly with texture is very loose and broken, so it is difficult to determine its hardness. The proportion of magnetite in burning slag was 33, the proportion of hematite in.5 was 34, and the proportion of.8 hematite was 34. The specific gravity of the three minerals is.O lower than that of natural minerals. In the process of slag formation, the temperature and space limitations of the fluidized bed furnace are limited, The proportion of minerals is different, and the separation is poor, and the ore minerals are mixed with each other, and the iron minerals and gangue minerals are often formed. The specific magnetic susceptibility of hematite in the slag is determined by the positioning magnetometer The specific magnetization coefficient of 7.m / g magnetite is 99X117X10k, 80 When the gas escaped, the magnetite and hematite formed honeycomb structure, which made the iron minerals loose and fragile. When the slag is grinded, due to the selective grinding, the friable iron minerals are ground, while the coarse gangue minerals are relatively coarse. A lot of fine particles are produced after grinding slag Iron ore increases the difficulty of ore dressing. (mineral purity is not high) is an important 2 iron that affects the grade of concentrate because / gk. The specific magnetic susceptibility of hematite and magnetite is lower than that of natural mineral. The structure of 42 slag The results of electron probe detection of magnetite and iron ore in sulfuric acid residue Pyrite clasts are formed during roasting to form various shapes of particles. The cubic crystal form of pyrite is easy to form spherical particles. Because of a large amount of gas escaping, the particles become loose and porous, and the mineral composition also changes. The mineral substance in the slag is very loose The results show that magnetite, hematite contain trace elements gA and IS, such as M and I, which seriously affect the purity of iron minerals in sulfuric acid slag, and the beneficiation grade is difficult to improve. 6 knots language The sulfuric acid slag chemical composition, composition and content, the main ore mineral characteristics research shows that the main elements can be used in the slag burning iron in cinder mainly magnetite, hematite and maghemite. There are many honeycomb, disseminated and residual structures, especially the disseminated structure. Cinder are the main mineral structure of honeycomb structure, a subhedral anhedral crystal structure, disseminated structure, residual structure and package Wrapped structure. Form existence. Because the content of iron in the slag is low and the harmful element sulfur content exceeds the standard, the impurity should be removed before the iron content is increased so as to meet the smelting requirements. However, the minerals in the slag are artificial minerals, and the separation is difficult. The process of acid washing should be used to separate impurities from iron ore particles in the slag Influence of mineral characteristics of 5 pyrite cinder on mineral processing The main minerals such as magnetite and hematite in sulfuric acid residue are studied The separation of ore concentrate can be achieved by magnetic separation combined with flotation process Smelting requirements, a new way to make full use of slag. The analysis of sign can be seen, The main reason for the difficulty in improving the beneficiation index is that: VIP information MutppoeUtlztooieasliursiianfMnrlReoureics Comprehensive utilization of mineral resources NO.3 Jn.2ou06 Period 6. I resource research and utilization of scandium resources in the Chongqing section of the Three Gorges reservoir silt Zhang Zonghua, Zhang Guifang, Gregory Kun, Chen Xiaoming (University of technology and engineering, Yunnan, 1 Kun, Kunming 609; 2 Tsinghua University, Beijing 503., North 108) 004 Abstract: through spectral analysis, chemical composition analysis and determination of main mineral contents, the silt resources in the Chongqing section of the Three Gorges reservoir have been studied. Result pair Show that the Three Gorges of the Yangtze River section of Chongqing silt is mainly composed of silicolites and quartz, such minerals accounted for silt 2% ~ 2% in silicolites for L8, the quartz particles accounted for only l% ~ 1%, 13 other SOi silicate minerals; feldspar minerals accounted for silt 1% ~ 1%, and 35 a variety of impurities; dolomite minerals for silt 8 to 1% of the sand;%0 pyroxene minerals contain Ti bearing augite and orthopyroxene, and their content is 4 ~%; The%6 content of 4 ~ 6 iron oxide minerals; mineral content of 3 green mud% 1%,%5 sulfide mineral content (< L) less silt also contains iron and titanium, a small amount of%; trace rare earth yttrium, ytterbium and SC components, the content of 2.gt, 66g 20 yttrium ytterbium?. The comprehensive utilization of silt can be enriched by extracting scandium, 58 / g and.6 / T scandium.0 / T, and its tailings and leaching residue can be used as building materials. Keywords: silt; resources; comprehensive utilization; feasibility CLC number: D1 document code: Article Number: 0063 (060060T93A105220) 3035 1 before word The silt resources in the Yangtze River provide certain theoretical basis. After the completion of the Three Gorges Dam, the Chongqing section of the Yangtze River will become the tail of the reservoir and a large amount of silt will be deposited 2 Analysis of silt resources in the Yangtze River 21 mineral composition analysis Sand processing will become important issues to guarantee the protection of the Three Gorges power station, navigation in the Chongqing section of the Yangtze River, the Yangtze River Three Gorges Reservoir tail section of Chongqing silt of mineralogy, understand the chemical composition and quality check into the matter The content of trace elements and the content of trace rare earth, ore for further development and utilization Spectral analysis of silt in the Chongqing section of the Three Gorges of the Yangtze River is presented in table 1, Chemical composition analysis shows Table 2 Determination of scandium content in main minerals of silt, Table 3. Table 1 spectral analysis of samples SuyooesMieaoyoyinenAnutdnPrcsnrlgfaPrtCidrihie GANn - agYoggn (inMiigGopCmaySagagui, HN) Zjnnruopn, hnhn, FjnCiaia AbtatPoesmieaoycaatrtsoytidrihieersaceyuigX - aircosrc:rcsnrlghrcesifprecneAnureehdbsnrydfatnicainwri . , SannlcrnmirsoeeetnmirpoeeetncsetmadceclaayiTerltnhpb - cnigeetcocp, LCR C O RB，CR I P CR N H MI N SS H EAI的I E O O O L O T E H R C R O S N H T S D E敉TR R C S I G T C L N G SD S U S D我 们N T E P E S E敉G C一C E O Si n RLP E E H O O WA SN IC S E O L Y R I C R S P Y克T我D R Y和D E CNE;米E O I O N R L MP ST N;C MP E T C I O R SV伊恩H N IE我Z T L O 。 ,此课题已获云南省20 0 4 3年科技进步等奖收稿日期:0 50 2 20 71, 作者简介:华(98，13，张宗一)男教授，研究方向:矿物加工及稀 有金属提取。 一