Tin yog ib qho ntawm cov hlau ntxov tshaj plaws uas tau pom thiab siv los ntawm tib neeg. Nws yog silver-dawb nyob rau hauv chav tsev kub thiab muaj peb allotropes nrog kub hloov. Hauv qab 13.2 ° C nws yog α tin (grey tin), 13.2-161 ° C yog β tin (dawb tin), thiab siab dua 161 ° C nws yog γ tin (nkim tin). Grey tin belongs rau lub pob zeb diamond-hom equiaxed siv lead ua system, dawb tin belongs rau tetragonal siv lead ua system, thiab brittle tin belongs rau lub orthorhombic siv lead ua. Kev tiv thaiv zaj duab xis ntawm tin dioxide yog tsim rau saum npoo ntawm tin nyob rau hauv cov huab cua thiab ruaj khov. Cov tshuaj tiv thaiv oxidation yog nrawm dua nyob rau hauv cua sov, thiab tin reacts nrog halogen los ua tin tetrahalide, uas tuaj yeem ua rau cov sulfur. Tin tuaj yeem maj mam yaj hauv dilute acid thiab sai sai yaj hauv concentrated acid. Tin tuaj yeem yaj hauv cov tshuaj alkaline muaj zog. Tin yuav corroded nyob rau hauv acidic daws ntawm ntsev xws li ferric chloride thiab zinc chloride.
Tin yog tooj liab-philic keeb, tab sis nyob rau sab sauv ntawm lub lithosphere, nws muaj cov yam ntxwv ntawm ob qho tib si oxygen thiab sulfur affinity. Muaj ntau tshaj 50 tin-muaj minerals paub nyob rau hauv cov xwm. Tam sim no, cassiterite yog qhov tseem ceeb ntawm kev lag luam, ua raws li kesterite. Hauv qee qhov kev tso nyiaj, sulfur-tin-lead ore, stibnite, cylindrical tin ore, thiab qee zaum dub sulphur-silver-tin ore, dub boron-tin ore, Malayanite, schistite, brucite, thiab lwm yam kuj tuaj yeem nplua nuj. Teeb, muaj nqi industrial.
Cassiterite, cov tshuaj muaj pes tsawg leeg yog SnO2, tetragonal siv lead ua, cov siv lead ua yog nyob rau hauv cov duab ntawm ob lub cones, cones, thiab qee zaum koob. Nws feem ntau muaj cov khoom sib xyaw xws li hlau, niobium, thiab tantalum. Tsis tas li ntawd, nws tuaj yeem muaj manganese, scandium, titanium, zirconium, tungsten, thiab dispersed ntsiab xws li iridium thiab gallium. Lub xub ntiag ntawm Fe3+ feem ntau cuam tshuam rau cov hlau nplaum, xim thiab lub ntiajteb txawj nqus ntawm cassiterite. Cassiterite yog cov khoom siv tseem ceeb ntawm cov tin.
Kesterite, tseem hu ua tetrahedronite, muaj cov tshuaj muaj pes tsawg leeg ntawm Cu2FeSnS4, tetragonal crystal system, tsis tshua muaj muaju, thiab pseudotetrahedron, pseudooctahedron, cov duab zoo li phaj. Yellow tin deposits muaj ntau dua nyob rau hauv Guangxi tin-bearing sulfide metasomatic deposits thiab filling-type tungsten-tin deposits, thiab Hunan high-middle-temperature hydrothermal type lead-zinc deposits.
Lub antimony tin-lead ore muaj cov tshuaj muaj pes tsawg leeg ntawm Pb5Sb2Sn3S14, nrog hlau, zinc, thiab lwm yam sib xyaw ua ke. Cov siv lead ua yog nyias, feem ntau nkhaus, thiab cov pob zeb ntxaib yog complex. Cov aggregates yog loj, radial los yog spherical. Nws yog tsim ua ke nrog stibnite thiab kesterite, thiab kuj yog tsim nyob rau hauv tin ore veins.
Sulfur tin lead ore, tshuaj muaj pes tsawg leeg yog PbSnS2, orthorhombic siv lead ua, cov siv lead ua yog phaj zoo li, cov duab yog ze rau square, feem ntau yog ib tug loj aggregate. Nws yog feem ntau tsim nyob rau hauv tin ore veins ua ke nrog cassiterite, galena, sphalerite, thiab pyrite.
Cylindrical tin ore, nrog rau cov tshuaj muaj pes tsawg leeg ntawm Pb3Sb2Sn4S14, orthorhombic siv lead ua, ib tug cylindrical los yog loj thiab kheej kheej aggregate, yog tsim nyob rau hauv tin ore veins ua ke nrog stibnite, sphalerite thiab pyrite.
Ntshiab tin cuam tshuam qeeb nrog cov organic acids tsis muaj zog, yog li nws feem ntau siv los ua cov ntawv tin-plated, feem ntau hu ua tinplate, thiab siv los ua cov khoom ntim khoom noj. Ntshiab tin tuaj yeem siv los ua cov txheej txheem rau qee yam khoom siv. Tin tau yooj yim ua tiav rau hauv cov raj, foils, xov hlau, strips, thiab lwm yam, thiab tuaj yeem ua cov hmoov zoo rau hmoov metallurgy. Tin tuaj yeem ua alloyed nrog yuav luag tag nrho cov hlau, thiab solder, tin bronze, babbitt alloy, lead-tin bearing alloy thiab txhuas alloy feem ntau siv. Kuj tseem muaj ntau cov tin-muaj cov alloys tshwj xeeb, xws li zirconium-raws li alloys, siv los ua cov khoom siv roj nuclear hauv kev lag luam atomic zog; titanium-raws li alloys, siv nyob rau hauv aviation, shipbuilding, atomic zog, tshuaj, khoom kho mob thiab lwm yam lag luam; niobium-tin intermetallic compounds tuaj yeem siv los ua super Cov khoom siv hluav taws xob, tin-silver amalgam yog siv los ua cov khoom siv kho hniav. Cov ntsiab lus tseem ceeb ntawm tin yog tin dioxide, tin dichloride, tin tetrachloride thiab tin organic compounds. Lawv yog siv los ua raw khoom rau ceramic enamel, mordant rau luam ntawv thiab dyeing txhob lo lo ntxhuav fabrics, tshav kub stabilizer rau yas, thiab raws li bactericides. Thiab tshuaj tua kab.
Kuv lub teb chaws cov peev txheej tin ore muaj cov yam ntxwv hauv qab no: (1) Cov khoom khaws cia yog cov concentrated heev. kuv lub teb chaws cov tin mines mas yog concentrated nyob rau hauv 6 lub xeev, xws li, Yunnan, Guangxi, Guangdong, Hunan, Inner Mongolia, thiab Jiangxi. Yunnan feem ntau yog concentrated nyob rau hauv Gejiu, thiab Guangxi yog concentrated nyob rau hauv Dachang. Cov reserves ntawm Gejiu thiab Dachang account rau tag nrho cov reserves ntawm lub teb chaws. Kwv yees li 40% ntawm reserves. (2) Feem ntau cov tin ore yog qhov tseem ceeb, thiab qhov chaw tin ore ua lub luag haujlwm thib ob. Nyob rau hauv lub teb chaws tag nrho reserves, thawj tin ore account rau 80%, thiab placer tin ore account tsuas yog 16%. (3) Muaj ntau qhov sib koom ua ke, tsuas yog 12% tshwm sim hauv daim ntawv ntawm ib qho ntxhia. Tin ore raws li cov ntxhia tseem ceeb suav rau 66% ntawm lub teb chaws tag nrho cov reserves, thiab tin ore raws li kev koom tes koom nrog suav nrog 22% ntawm lub teb chaws tag nrho cov reserves. Symbiotic thiab cov minerals uas muaj xws li tooj liab, txhuas, zinc, tungsten, antimony, molybdenum, bismuth, silver, niobium, tantalum, beryllium, indium, gallium, germanium, cadmium, thiab hlau, sulfur, arsenic, fluorite, thiab lwm yam (4) Muaj ntau ntau qhov loj thiab nruab nrab-Daim ntawv cog lus. Guangxi, uas yog ntiaj teb-chav kawm polymetallic super-loj tin mining cheeb tsam.
Xav paub ntau ntxiv Link:https://www.wanmetal.com/products/tin/
Qhov chaw: Internet
Disclaimer: Cov ntaub ntawv muaj nyob rau hauv tsab xov xwm no tsuas yog siv rau kev siv xwb, tsis yog kev txiav txim siab ncaj qha. Yog tias koj tsis xav ua txhaum koj txoj cai lij choj, thov hu rau peb raws sijhawm.
Post lub sij hawm: Aug-30-2021