硬硼钙石和钠硼解石矿酸解制硼酸的工艺研究
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摘要
硼矿是一种比较稀缺的化工矿物资源,主要作为生产硼酸和硼砂的原料。以硼酸等为原料生产的各种硼化合物,广泛应用于化工、轻工、医药、电子、冶金、航天航空、电力、太阳能、核工业及农业等多种领域。因此,硼矿在国民经济中具有十分重要的作用。在我国,过去几十年来依赖的硼镁矿资源,由于长期的开采已面临枯竭,不能满足未来硼工业的需求。因此,加快其它硼资源的合理开发利用,对于我国硼工业的发展有着重要的现实意义。本文研究内容由两部分构成:以土耳其硬硼钙石矿为原料,探讨其硫酸分解制硼酸的工艺过程;以玻利维亚钠硼解石矿为原料,通过洗矿脱除氯化物后,对其硫酸分解制备硼酸的工艺过程进行研究。
     对土耳其硬硼钙石矿进行化学分析和物相表征,确定矿中各组分的含量为B2O341.82%、CaO26.75%和MgO1.71%;矿石主要物相为硬硼钙石(2CaO·3B203·5H2O)、钙磷石、硅硼石和硅酸盐等不溶性杂质。通过考察酸量、反应温度、反应时间和液固比等因素对酸解过程的影响,获得了硬硼钙石矿酸解制备硼酸的适宜工艺条件:酸用量为理论值的98%,反应温度90℃,反应时间1h,反应液固比4:1;在此条件下,硼的浸出率达到了98.16%。通过对母液和矿渣洗液的循环试验考察,确定系统经二次循环后,对硼酸母液进行回收硼的处理较适宜;硬硼钙石矿酸解产生的硼酸母液中硼,采用加Ca(OH)2反应转化法进行回收,最佳工艺条件为:温度25℃、钙硼比1.6:1、反应时间1.5h;经XRD物相分析,沉淀产物主要为四水合偏硼酸钙,其B203质量分数为28.38%,CaO质量分数为36.21%,MgO质量分数为2.50%。硬硼钙石矿酸解料浆中,渣的主要成分CaSO4·2H2O和未反应的钙磷石等,采用阴离子型聚丙烯酰胺进行助滤,可以改善CaSO4·2H2O的晶体尺寸,加快过滤速率,缩短过滤时间。
     玻利维亚钠硼解石矿的分析和表征表明:矿石中各组分含量为B2O325.31%、CaO12.36%、Na2O7.09%、MgO2.21%和Cl-4.95%,主要物相为钠硼解石(NaCaB5O9·8H2O)、 NaCl和SiO2。用矿粉质量6倍的去离子水洗矿,可使矿石中Cl-含量降到0.91%。用钠硼解石矿制硼酸的适宜工艺条件:酸用量为理论值的84%,反应温度90℃,反应时间1h,反应液固比3:1;在此条件下,硼的浸出率达到98.5%。通过母液和矿渣洗液的循环试验,确定二次循环后对硼酸母液进行回收硼的处理较适宜;采用向硼酸母液中加氢氧化钙沉淀偏硼酸钙的方法回收硼,适宜的回收硼的工艺条件为:室温(18℃)、钙硼比3:1、反应时间3h,沉淀产物主要为四水合偏硼酸钙。
As a relative scarce chemical mineral resource, boron mineral is mainly used as the raw materials of boric acid and borax. A variety of boron compounds with using boric acid as raw materials have been widely used in many fields such as chemical industry, light industry, pharmacy, electronic, metallurgy, aerospace, power, solar energy, nuclear industry, agriculture and so on. Therefore, boron minerals play a significant role in the national economy. Ascharite resource which is the main resource in our country over the past few decades has run out due to a long period of mining, and can't meet the needs of future boron industry. As a result, to speed up rational utilization of other boron resources is meaningful to the development of boron industry in our country. The research topics in this paper have two parts:the research on the chemical engineering process of boric acid preparation by using sulphuric acid to decompose Turkey's Colemanite Ore, and the research on the decomposition process of Ulexite Ore in Bolivia by using sulphuric acid, with the removal of chloride by washing ore.
     Turkey's Colemanite Ore was characterized by chemical analysis and XRD, and the chemical composition of Colemanite Ore is as follows:B2O341.82%, CaO26.75%and MgO1.71%. Colemanite Ore is mainly composed of Colemanite (2Ca0·3B203·5H2O), brushite, jennite and insoluble impurities such as silicate. The effects of liquid to solid ratio and sulfuric acid consumption on the reaction of Colemanite Ore with sulfuric acid were investigated and the results indicated that under the conditions of98%sulfuric acid theory consumption, temperature90℃, reaction time1h and reaction liquid to solid ratio4:1, the boron leaching rate could reach up to98.16%. With the reaction of Colemanite Ore with sulfuric acid carried out under these conditions, mother liquor and washing water recycles have been investigated, the experiment data showed that the better cycle time is secondary. The recovery process of boron from the mother liquor by the reaction of calcium hydroxide with boric acid has also been investigated and the results indicated that under the conditions of temperature25℃, CaO/B2O31.6:1, reaction time1.5h calcium metaborate can be precipitated, after characterizing by chemical analysis, the contents of different components were showed as follows:B2O328.38%, CaO36.21%and MgO2.50%. After the reaction of Colemanite Ore with sulfuric acid, CaSO4·2H2O was formed with brushite in the reaction slurry. Adding anionic polyacrylamide for filter aid can improve the filtration of the reaction slurry due to forming CaSO4·2H2O with larger crystal size, the filtration rate has been sped up, and the filtration time hass been shorten.
     Bolivia's Ulexite Ore was characterized by chemical analysis and XRD, the chemical composition of Ulexite Ore is as follows:B2O325.31%, CaO12.36%, Na2O7.09%, MgO2.21%and Cl-4.95%. Ulexite Ore is mainly composed of Ulexite (NaCaB5O9·8H2O), NaCl and SiO2. After washing with deionized water, the content of Cl-can be reduced to0.91%. The results on the reaction of Ulexite Ore with sulfuric acid indicated that under the conditions of84%sulfuric acid theory consumption, temperature90℃, reaction time Ih and reaction liquid to solid ratio3:1, the boron leaching rate could reach up to98.5%. Mother liquor and washing water recycles have been investigated, the experiment data showed that the better cycle time is secondary. The recovery process of boron from the mother liquor by the reaction of calcium hydroxide with boric acid has also been investigated and the results indicated that under the conditions of temperature18℃, CaO/B2O33:1, reaction time3h calcium metaborate can be precipitated.
引文
[1]龚殿婷,李凤华,刘素兰,等.硼酸的生产应用现状及市场前景[J].化学工业与工程技术,2007,28(6):50-54.
    [2]晓非.世界硼矿资源及开发利用近况[J].化工矿物与加工,1999,8:20-21.
    [3]王有德,张岳.硼矿资源战略分析-硼[M].北京:化学工业出版社,1989.
    [4]王方强,刘德田.硼资源的开发利用方向[J].中国化工,1996,2:27-28.
    [5]郑学家.硼化合物生产与应用[M].北京:化学工业出版社,2007.
    [6]辽宁省硼行业赴土耳其考察团.土耳其硼资源及硼工业考察报告[R].硼工业,2006,4:6-9.
    [7]李东明.世界硼矿资源形势及我国硼矿资源发展战略[J].中国地质经济,1989,9:17-21.
    [8]杨细平,邱祖民.硼及其硼化物的应用研究进展[J].化工技术与开发,2008,37(6):22-26.
    [9]汪镜亮.硼矿资源的分布和加工状况[J].矿产综合利用,1993,3:16-24.
    [10]李东明.独联体国家的硼资源及加工利用概况[J].化工矿产地质,1998,1:67-68.
    [11]国土资源部信息中心.世界矿产资源年评(2003-2004)[R].北京:地质出版社,2005.
    [12]李东明.哈萨克斯坦矿产资源潜力[J].西部资源,2005,2:26-31.
    [13]孙晓红.硼铁矿资源综合利用的经济评价[J].辽宁化工,2004,33(7):406-408.
    [14]高春亮,余俊清,展大鹏,等.柴达木盆地盐湖硼矿资源的形成和分布特征[J].盐湖研究,2009,17(4):6-12.
    [15]王文侠,严芝兰.青藏地区硼资源的开发利用[J].青海科技,2002(2):25-26.
    [16]王政勋.我国硼资源开采利用概况[J].化工矿山技术,1986,6:54-55.
    [17]邵世宁,熊先孝.中国硼矿主要矿集区及其资源潜力探讨[J].化工矿产地质,2010,32(2):65-74.
    [18]李文光.我国硼矿资源概况及应用[J].化工矿物与加工,2002,9:37.
    [19]刘然,薛向欣,刘欣等.我国硼资源加工工艺与硼材料应用进展[J].硅酸盐通报,2006,25(6):102-107.
    [20]朱广发.辽宁硼泥资源综合利用的探讨与对策[J].材料导报,1998,27(3):123-125.
    [21]张彭喜.柴达木盆地盐湖[M].北京:科学出版社,1987:235.
    [22]张丽清,刘素兰,朱建新,等.硼铁矿资源综合利用研究现状与进展[J].矿产综合利用,2000,3(6):34-36.
    [23]赵鸿.我国硼矿床的类型及工业利用[D].北京:中国地质大学,2007.
    [24]禾宜.2002年美国硼工业概况[J].化工矿物与加工,2003,6:41-42.
    [25]郑学家.国内外硼酸生产技术综述[J].辽宁化工,2000,29(5):276-278.
    [26]刘其昌.国外硼工业发展近况[J].无机盐工业,1987(6):25-28.
    [27]于小伟.柴达木硼资源的开发现状及前景[J].柴达木开发研究,2002,1:27-29.
    [28]朱建华,魏新明,马淑芬,等.硼资源及其加工利用技术进展[J].现代化工,2005,25(6):26-31.
    [29]陶连印,郑学家.硼化合物的生产与应用[M].成都:成都科技大学出版社,1985,89-90.
    [30]全兴.土耳其硼酸盐的开采与加工[J].现代矿业,1994,19:14-15.
    [31]李伟.土耳其的硼矿工业点滴[J].化工矿产地质,1994,1:70.
    [32]DRISCOLL M. Borates:the Turk of the town [J]. Industrial Miner,2001,402:30-46.
    [33]OSMAN N A, SABRI C,MEHMET 0, et al. Determination of the optimum conditions for boric acid extraction with carbondioxide gas in aqueous media from colemanite contaiing Arsenic [J].Ind Eng Chem Res,2000,39(2):488-493.
    [34]曹开春.独联体国家的硼资源及加工利用概况[J].化工矿产地质,1998,1:67-68.
    [35]陶连印.我国硼工业建立45周年回顾与展望[J].辽宁化工,2001,30(7):278-279.
    [36]李子全.硼资源及市场[J].现代材料动态,2003,3:13-15.
    [37]金鑫.硼资源的深加工[J].辽宁化工,2001,30(7):320-322.
    [38]冉启培.我国硼工业的现状和动向[J].化学世界,1998,11:567-570.
    [39]余德成.青藏硼资源的开发利用[J].辽宁化工,2001,30(7):321-322.
    [40]钱洪伟,薛向欣,安静.硼化物资源开发全流程中的关键性加工技术现状及展望[J].现代化工,2008,28(4):28-31.
    [41]周哲,刘征,李有润,等.系统集成方法在磷煤化工生态工业示范基地规划中的应用[J].现代化工,2005,25:1-2.
    [42]段宁,孙启宏,傅泽强,等.我国制糖(甘蔗)生态工业模式及典型案例分析[J].环境科学研究,2004,17(4):29-30.
    [43]郑学家.硼及硼酸盐产品开发和应用前景[J].无机盐工业,2005,37(4):1-3.
    [44]张世鑫.硼泥在PVC材料中应用的可行性研究[N].科技创新导报,2011(22):27.
    [45]徐惠娟,袁海涛,高佳令,等.相转移催化技术在无机化工中的拓展[J].当代化工,2002,31(2):105.
    [46]武炳明.我国硼工业面临三大挑战[N].中国化工报,2005,2:3.
    [47]禾宜.我国硼矿工业与国外的差距[J].化工矿物与加工,2003,6:40-41.
    [48]郑学家,赵世忠.我国硼化工动态[J].无机盐工业,2002,34(4):7.
    [49]高显洲,戴恩国.辽宁硼工业要走发展循环经济之路[N].中国冶金报,2006,11:8.
    [50]孔庆山.营口地区硼行业现状[J].辽宁化工,2001,30(7):315-316.
    [51]方继兴.宽甸县政协建言科学、合理、有效开发硼资源打开束缚硼产业发展之扣[N].友报,2005,(1):4-5.
    [52]北京师范大学,华中师范大学,南京师范大学无机化学教研室.无机化学(下)[M].北京:高等教育出版社,2003.
    [53]全跃.硼及硼产品研究与进展[M].大连:大连理工大学出版社,2008.
    [54]申达.铝热法制备硼、钒、锆材料的研究[D].兰州:兰州理工大学,2011.
    [55]李要辉,梁开明.硼及其硼化物在材料研究中应用进展[J].辽宁建材,2006,5:35-38.
    [56]张国军,邹冀,倪德伟,等.硼化物陶瓷:烧结致密化、微结构调控与性能提升[N].无机材料学报,2012,27(3):225-233.
    [57][苏联]M.E,波任等.无机盐工艺学(上)[M].北京:化学工业出版社,1982.
    [58]张玉柱,郎建峰,李振国.含硼添加剂改善烧结矿质量机理及硼-镁复合添加剂的研究[J].矿产综合利用,2000(1):29-32.
    [59]王引平.构建柴达木循环经济中硼产业链的战略设想[J].柴达木开发研究,2010,4:9-10.
    [60]王新生等.Mn的添加对铁基块状非晶合金的制备与性能影响[J].热处理技术与装备,2010,31(2):1-4,14.
    [61]陈国胜,金鑫,周奠华,等.硼含量对镍基合金GH4049晶界析出相和高温性能的影响[N].金属学报,2005,6(41):622-625.
    [62]王吉会,姜晓霞,李诗卓,等.加硼HA177-2铝黄铜的组织和力学性能[N].金属学报,1995,7(30):A315-A319.
    [63]王斐,仲剑初,王洪志,等.钠硼解石矿制备硼酸钙的研究[N].大连理工大学学报,2006,5:3-4.
    [64]张亨.硼酸锌的性质、生产及阻燃应用[J].合成材料老化与应用,2002,4:39-42.
    [65]伊言.中国硼工业的精细化之路[J].中国石油和化工,2008,3:29-30.
    [66]熊焰,傅正义.二硼化钛基金属陶瓷研究进展[N].硅酸盐通报,2005,1:60-64.
    [67]CACCHIOP E C, CAPPUCCIO G. Calcium carbonate precipitation by bacterial strains isolated from a limestone cave and from a loamy soil [J].Geomicrobiol,2003,20(2):85-98.
    [68]孙文儒,宋洪伟,郭守仁,等.磷硼微合金化一种发展高性能变形高温合金的新途径[J].中国基础科学,2005,6:15-16.
    [69]孙景,魏庆丰,刘俊朋,等.添加VC的TiB和2-Fe-Mo硬质合金研究[N].天津大学学报,2004,37(4):349-352.
    [70]金鑫.硼资源的深加工[J].辽宁化工,2001,7(30):320-322.
    [71]陈昌明,张立同,周万诚,等.硼化物陶瓷及应用[J].兵器材料科学与工程,1997,20(2):68-71.
    [72]孙新华.我国硼镁矿综合利用研究概况[J].矿产综合利用,1995(4):39-42.
    [73]郑学家.硼及含硼材料在航空航天、机械制造及电子工业中的应用[C].中国硼工业50周年硼化物论文集,2006,44-49.
    [74]SHUIM L T K. Combustion character istics of GAP2 coated boron particles and the fuel rich solid propellant [C].ICT 25A Int. Conf,1994:114.
    [75]袁光辉.硼酸盐的结构特征及分类研究[D].大连:大连理工大学化工学院,2007.
    [76]沈观清,唐志尧,何林,等.大型E-玻璃纤维熔窑的电熔技术[J].玻璃与搪瓷,2010,38(4):39-42.
    [77]郑学家.国内外硼资源分布及硼矿质量标准[J].硼矿与硼化学品,2005.
    [78]陶连印,郑学家.无机盐技术丛书:硼化物的生产与应用[M].成都:成都科技大学出版社,1992.
    [79]吴学英,权文静,潘晓杰,等.一步法生产硼酸的废液废渣回收利用分析[J].环境保护与循环经济,2008,2:35-36,48.
    [80]郑学家.硼精矿焙烧活化及硼砂、硼酸制造[M].北京:化学工业出版社,2009.
    [81]钟耀荣.硫酸法制硼酸过程中提高回收率的研究[J].化工矿山技术,1996,25(4):35-37.
    [82]杨春荣,吴致中,成富亮.硼酸生产的新工艺[J].化学世界,1985,9:322-324.
    [83]杨克勤,于永坤.浅谈硼原料的加工工艺[J].矿产保护与利用,1992,3:30-34.
    [84]杨朝强.含硼废弃物的资源化技术研究[D].沈阳:东北大学,2005.
    [85]肖景波.一步法硼酸工艺的改进及对我国硼酸生产形式的分析[J].硼矿与硼化学品,中国硼工业50周年庆典暨硼化物专家组、协作组年会专辑,2006,5(5,6):15-20.
    [86]MINE 0, ILKER K. Boron recovery from borax sludge using solid-liquid extraction followed by sorption with a boron selective resin in column [J]. Wastewater Treatment,1990,37(1-3):77—82.
    [87]王恩德,朱恩静.硼泥集约利用研究[J].金属矿山,2004(1):438-441.
    [88]杨鑫,徐徽,陈白珍,等.盐湖卤水硫酸法提取硼酸的工艺研究[N].湖南师范大学自然科学学报,2008,31(1):72-77.
    [89]高成花,邓小川,张琨,等.混合醇萃取盐湖卤水中的硼酸[J].化工矿物与加工,2010(4):16-19.
    [90]唐明林,邓天龙,杨建元,等.A1416从选硼后母液中萃取硼酸研究[J].盐湖研究,1994,2(1):63-66.
    [91]杨存道,贾优良,李君势,等.从盐湖卤水结晶硼酸的新工艺研究[J].化学工程,1992,20(3):22-27,32.
    [92]马晓莉,孙小青.硼酸母液综合利用研究[J].陕西化工,1999,28(3):28-29.
    [93]王文侠,李洪岭.硫酸法生产硼酸母液回收利用技术[J].无机盐工业,2002,34(5):33-34.
    [94]钱洪伟,薛向欣,许亚宣,等.硼酸制取过程的AT&T矩阵评价对比[J].环境科学研究,2009,22(4):501-505.
    [95]侯军.复分解法制备硼酸和硝酸钠中试研究[J].无机盐工业,2004,5:34-35.
    [96]周春梅.对合成水杨醇废液中硼酸回收方法的研究[N].江汉大学学报,1996,13(3):64-65.
    [97]郑学家.硼酸盐晶体的拓扑结构及结构分类研究[N].安康学院学报,2010,22(1):89-92.
    [98]周国清,徐军,陈杏达,等.新型紫外双折射晶体高温相偏硼酸钡(α-BaB2O4)的人工合成[J].材料研究学报,2000,14(1):86-87.
    [99]刘军芳,王海丽,何晓明,等.β-BaB2O4薄膜制备技术的研究和进展[N].硅酸盐学报,2004,32(5):636-641.
    [100]潘峰,王如骥,沈光球,等.四硼酸锶SrB4O7的晶体结构及其非线性光学性质[N].高等学校化学学报,2001(1):154-158.
    [101]刘雪艳,文忠波.硼砂碳解率的影响因素浅析[J].辽宁化工,1997,26(5):261-262.
    [102]曹春娥,曹惠峰,卢希龙,等.硼酸钙的研究现状及其应用[J].中国陶瓷,2007,43(1):12-15.
    [103]GERARD W. K, CINCINNATI 0. Flame retardant composition[P]. USA:6096816,1998.
    [104]WOOLDRIDGE J. Effect of foliar-and soil-applied boron in deciduous fruit orchards.2:Apricot and peach [J]. South African Journal of Plant and Soil,2002,19(3):145-150.
    [105]HUNTER I R, WILL G M, SKINNER M F. A strategy for the correction of boron deficiency in radiata pine plantations in New Zealand. Forest Ecology and Management [J].1990,37(1-3):77-82.
    [106]COETZEE J K. Evaluating calcium borate as a boron fertilizer for mature citrus trees [J]. Applied plant science,1992,6(1):37—39.
    [107]KAPUSTIN A, GABOVA E. Application of calcium borate to red clover for seed production [J].Korma,1977(1):45.
    [108]YILDIZ 0. The effect of heat treatment on colemanite processing:a ceramics application [J]. Powder Technology,2004,142(1):7-12.
    [109]于守富,李涛,龙文基.硼酸在无碱玻璃纤维生产上的应用[J].玻璃纤维,2003,2:18-19.
    [110]张兴儒,王彬,张煜发,等.用石灰乳从硼酸母液中沉淀硼影响因素研究[J].无机盐工业.2005,10:21-23.
    [111]史恒欣,赵文升,李入林,等.硼酸与硫酸镁分离的理论分析与实践[J].无机盐工业.1998,30(5):22-24.
    [112]王凯.由硼砂和消石灰制备偏硼酸钙和过硼酸钠[D].大连:大连理工大学,2009.
    [113]柴晓敏.聚丙烯酰胺对煤泥水的净化与助滤性能研究[J].煤炭加工与综合利用,2004(1):23-26.
    [114]曹加胜,王连生,施秀屏.两性聚丙烯酰胺的合成与助滤性能研究[J].工业水处理,1999,19(4):14-16.
    [115]谢杰,彭举威.聚丙烯酰胺对水处理的助滤作用研究[N].科技创新导报,2008(34):90.
    [116]陈红燕.湿法磷酸料浆分层过滤新工艺研究[D].成都:四川大学,2004.
    [117]鲁厚芳.杂质对石膏-碳酸铵转化过程的影响[D].成都:四川大学,2002.

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