鋅的粒化 的英文怎麼說
中文拼音 [xīndelìhuà]
鋅的粒化
英文
zinc beading-
Some main results of testing research were as fellows : i. in the course of testing of leaching zinc dross, leaching zinc dross by sulfuric acid was researched and the effects on the leaching rate of the zinc dross were analyzed by author, the optimum conditions of leaching testing of zinc dross were determined as fellows : liquid - solid ratio 6 : 1, stirring ratio 250r / min, granularity 120 mesh, the soaking time 5h, the concentration of sulfuric acid of 30 %, and under these conditions, the rate of leaching zinc is above 92. 0 %. ii. in the course of testing of purification, on the basis of comprehending and comparing all present methods of the manganese - removal and iron - removal, the oxidizing method of manganese - removal in zinc sulfate solution using ammonium persulfate was put forward and the oxidizing method of iron - removal in zinc sulfate solution using the goethite process and oxidation - hydrolysis process was adopted
研究的主要結果具體如下: 1 、研究了硫酸浸出鋅浮渣並分析了影響浸出率的各種因素,確定了浸出鋅浮渣的最佳條件為:液固比為6 : 1 ,攪拌速度為250r min ,粒度為- 120目,酸浸時間為5 . 0h ,硫酸濃度30 ,鋅浮渣的浸出率大於92 . 0 ; 2 、在綜合和比較了目前除錳和除鐵的各種方法基礎上,提出了過硫酸銨氧化除錳方法和選擇了針鐵礦-氧化水解聯合法除鐵方法,並分析和討論了影響除錳率和除鐵率等各種因素,確定了除錳的條件為:溫度90 , ph值5 . 4 ,反應時間3h ,過硫酸銨達到理論值的1 . 2倍,除錳率超過99 . 86 ;聯合法除鐵的條件為:氧化反應時間1 . 5小時、溫度控制在90 92 、 ph值5 . 2 5In 2005, 61 physical and chemical parameters were measured and analysed in sediments. these included particle size, electrochemical potential as highly anoxic sediment with negative potential is related to organic pollution, chemical oxygen demand which indicates organic pollutants, total sulphide inorganic constituents, source of the unpleasant - smelling gas hydrogen sulphide, 15 metals and metalloids aluminium, arsenic, barium, boron, cadmium, chromium, copper, iron, lead, manganese, mercury, nickel, silver, vanadium and zinc, and trace toxic organics pahs and pcbs - 16 compounds and 18 congeners respectively
2005年,沉積物監測包括分析61種物理及化學參數,其中有粒子大小電化學勢有機污染促使沉積物缺氧,而讓電化學勢呈負數值化學需氧量顯示有機污染程度總硫化物無機物,是造成難聞氣體硫化氫的主因15種金屬及準金屬鋁砷鋇硼鎘鉻銅鐵鉛錳汞鎳銀釩及鋅和痕量毒性有機物多環芳烴及多氯聯苯分別為16種復合物及18種同質物。V. experimentation and pilot test of the whole flow of preparation of ultra - fine active zinc oxide by comprehensive utilization of zinc dross have been completed
採用日本島津產epma - 1600型電子探針對產物超細活性氧化鋅的微觀結構、粒度和形態進行表徵。The microstructure, granularity and morphology of the product were characterized by epma - 1600. epma - 1600 studies showed that the ultra - fine active zinc oxide was spherical structure with distribution and granu
結果表明:超細活性氧化鋅的形貌為球形,且分散均勻,粒度均勻,其平均粒徑為100nm ,比表面積為41m ~ 2 g 。In this article the chelating precipitation method and the converting precipitation method were chosed to synthesis zno nanoparticles on the basis of the theory of synthesis of nanoparticles by precipitation. uniform and dispersed zno nanoparticles were prepared by the two methods because zn2 + of conformation crystal was flee slowly and the supersaturation was well controlled. the problem which zno nanoparticles are wide size and agglomerative was solved
本文根據均相沉澱法合成納米粒子的原理,採用絡合沉澱法和沉澱轉化法合成納米氧化鋅。這兩種方法利用溶液中的構晶陽離子zn ~ ( 2 + ) ,緩慢地釋放出來,有效地控制了溶液中的過飽和度,可以得到粒徑均勻、分散的納米氧化鋅,解決現有制備工藝中納米氧化鋅粒徑分佈寬、易團聚的問題。In order to obtain the mn - zn ferrite precursor particle which has itra - fme property, the optimum technological condition was obtained through the orthogonal experiments in this paper. in the co - precipitation procession of preparation the leading factors that affect the size of the particle are ratio of the ion concentration ( a ), ph of the reaction ( b ), temperature of reaction ( c ), and aging time ( d )
本文通過拉丁正交試驗,以粒徑尺寸為考察目標,將離子濃度比( a ) ,反應ph值( b ) ,水浴溫度( c )和陳化時間( d )作為四參量,利用每一參量為變量進行試驗確定各參量值,從而確定製備超細錳鋅鐵氧體前驅體粉末的條件。The size of the zno nanocrystal grain was so little that the quantum confinement effect should be considered. that makes the band gap wide. atom transfer rate is affected by the substrate temperature, and the average size of the zno nano crystal grain increases with the increasing substrate temperature resulting in the red shift of pl emission position and the narrowness of pl fwhm
低溫生長的氧化鋅晶粒小,考慮到量子限制效應,禁帶寬較大;襯底溫度影響吸附原子遷移能力,隨著溫度升高,晶粒的尺寸增大,分佈變的均勻,因而發光峰位隨著襯底溫度的升高而紅移,發光的半高寬變小。Nano - zno with diameters of 8 ~ 130nm were prepared from zinc nitrate and urea by homogeneous precipitation method
以硝酸鋅和尿素為主要原料,用均勻沉澱法制備了幾種不同粒徑范圍的納米級氧化鋅。Prepared technical parameters were optimized by l9 ( 34 ) experiment analysis. a unique method for cleaning and drying of substrate - cleaning used by scour, drying used by infrared light was fished out by large numbers of experiment. chemical mechnism of zno thin film prepared by sol - gel technique was discussed by dta for the first time. by the measurements of sem, xrd and uvs, the thin film was analysed. the result proved that the thin film with strongly preferred orientation of c - axis perpendicular to the substrate surface which surface was homogenous, dense and crackfree was the crystalline phase of hexagonal wurtzite. the thin film was composed of plentiful asteroidal crystal which crystal dimension approximately 10 30nm. the average transmittance of thin film in visible region was above 90 %. the results of measurements else also proved that the thickness of single dip - coating was 75 240nm, this films resistivity was found to be 3. 105 102 3. 96 105 ? cm. the thickness and resistivity of thin film influenced by dope - content, withdrawal speed, pre - heat - treatment, anealing were reseached respectively
利用xrd 、 sem以及uvs光譜儀等分析方法對薄膜進行了研究,結果顯示,所制備的薄膜為六方纖鋅礦型結構,具有高c軸擇優取向性;表面均勻、緻密,薄膜材料由許多星狀晶粒組成,晶粒尺寸大約為10 - 30nm左右;薄膜可見光透過率平均可達90 % ;對薄膜厚度以及電學性能進行了測定后發現:單次鍍膜厚度約為75 - 240nm , al ~ ( 3 + )離子摻雜型氧化鋅薄膜的電阻率在3 . 015 102 - 3 . 96 103 ? cm范圍內;分別研究了摻雜濃度、提拉速度、預燒溫度、退火溫度等工藝參數對薄膜厚度和電阻率的影響。The effect of operation parameters of high - gravity machine on the particle size of nanometer zno
超重機的操作參數對納米氧化鋅粒徑的影響However, as more nano - zno was added and the smaller the particle size was, the shorter the vulcanization time was. on the other hand, when commercial zno powder was insteaded by nano - zno, the mechanic properties would be improved and the needed quantity of zno would be decreased. compared with rubber composites with 5 parts of commercial zno powder, rubber composites with only 1 parts of nano - zno have better mechanic properties, wear - resistance and anti - aging ability
用幾種不同粒徑的納米氧化鋅取代普通氧化鋅,應用於以nr - br - sbr為基體的橡膠復合材料中,研究了不同粒徑的納米氧化鋅對橡膠復合材料硫化時間、常規力學性能、耐老化性能及摩擦磨損性能的影響並與加入普通氧化鋅的傳統橡膠體系進行了l廠b文通人學顧咐穴生學位淪義摘羅比較。The nano - zno had high transparence property in the band of visible light, while the commercial zno powder was opaque. at the same time, nano - zno had wide absorption frequency as well as good absorption effect within the ultraviolet band. with the decreasing of the diameter of nanometer particle, blue shift of absorbing peak was observed
結果表明:納米氧化鋅在中紅外頻段與普通氧化鋅的吸收能力相當,但由於納米氧化鋅的表面效應,其中紅外吸收峰形狀與普通氧化鋅不同;在可見光區,納米氧化鋅具有普通氧化鋅所不具備的高透光性;而在紫外光區,納米氧化鋅具有很寬的吸收頻段和優異的吸收性能,同時,隨粒徑的減小,吸收峰發生藍移。The morphologies of the samples were detected by the scanning electron microscope ( sem ), showing that the zno micro rods are about thirty microns long with a diameter of 5 ( m
我們還通過簡單的熱氧化鋅粒的方法制備出了zno微柱,微柱的平均直徑為2 - 5 m ,長約30 m 。Therefore, adding rare - earths oxides ( nd2os > ceo2 and la2o3 ) with appropriate content decreases the size of zno grain evidently and makes the grain size and distribution more homogeneous, then the zinc oxide varistor show outstanding comprehensively performance
因此, ndzo3 、 ceoz和lazo3加入到氧化鋅壓敏閥片中,使zno晶粒尺寸減小,並使晶粒分佈更為均勻,從而改善了壓敏閥片的綜合電性能。The results indicated that nano - zno and commercial zno powder had almost the same absorption abilities in middle infrared band
研究了幾種不同粒徑的納米氧化鋅在中紅外、紫外和可見光區的吸收性能,並與普通氧化鋅粉進行了對比。The ministry of finance and the state administration of taxation jointly determined to adjust export refund rates of the following products as of 1 may 2005 : ( 1 ) export refund rates of coal, tungsten, tin, antimony and their products decreased to 8 % ; ( 2 ) abolishing of the export refund tax of thulium, thulium oxide, salts of lanthanum, silicon metal, molybdenum ores and its fine ores etc
中國財政部、國家稅務總局決定自2005年5月1日起調整下列產品的出口退稅率: ( 1 )將煤炭,鎢、錫、鋅、銻及其製品的出口退稅率下調為8 % ; ( 2 )取消稀土金屬、稀土氧化物、稀土鹽類,金屬硅,鉬礦砂及其精礦,輕重燒鎂,氟石、滑石、碳化硅,木粒、木粉、木片的出口退稅政策。When quantity of nano - zno increased, the rubber composite materials appeared good effect on enhancing the anti - aging ability and wear - resistance but less on mechanic properties. nano - zno modified by coupling agent was applied to reinforcement of hope. mechanic properties of nano - zno / hdpe composites were investigated and compared with nano - zno without surface treatment
結果表明:納米氧化鋅具有更高的反應活性, 」非o米村料川量較少時,體系的硫化時問有延遲現象,們隨納米氧化鋅粒徑的減小和用量的增加,橡膠的硫化時間不斷縮短。分享友人