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双语推荐：拜耳

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晶种分解是拜耳法生产氧化铝的关键工序之一,晶种分解最终得到质量好的氢氧化铝和苛性比值较高的种分母液,从而提高拜耳法的循环效率。简单介绍拜耳法氧化铝生产影响晶种分解过程的主要因素及种分分解率和产品粒度的控制。
The crystal seed decomposition is a key process in Bayer process, aluminium hydroxide with good quality and mother liquid with high caustic ratio can be gained by the crystal seed decomposition, so it can improve the efficiency of the Bayer cycle. In this paper, main factors to affect crystal seed decomposition in the Bayer process were described, how to control seed decomposition rate and particle size was discussed.

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以拜耳法赤泥、水泥熟料为激发剂,研究拜耳法赤泥的引入量对锰渣活性的影响,借助XRD、SEM分析水化产物和微观结构。结果表明,拜耳法赤泥中的碱能加速锰渣中玻璃体的溶解,促进锰渣的早期水化,提高早期强度和后期的抗折强度。后期抗折强度的提高是由于水化产物呈长片状和层状,而抗压强度的降低则是由于结构疏松,空隙较多造成。综合考虑各项工作性能和力学性能,拜耳法赤泥的掺量不宜超过6%。
Using Bayer red mud and cement clinker as activators, studied the effect of the dosage of Bayer red mud on the manganese slag activity, and analyzed the hydration products and micro-structure by XRD and SEM. The results show that the alkali of Bayer red mud can accelerate the dissolution of glass of manganese slag. It also can promote the early hydration of manganese slag, enhance the early strength and the late lfexural strength. The increasing of late lfexural strength was due to the hydration products shape of long lfake and layered. The reducing of compressive strength was due to the loose structure and the more space. Considering the work performance and mechanical properties, the addition of Bayer red mud should not be more than 6 percent.

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研究了用拜耳工艺从高浓度铝酸钠-氢氧化钠废液中以生成Al(OH)3晶体形式脱除部分铝。试验结果表明:拜耳法种分工艺可以满足除铝要求,处理后的废液可返回利用;在适宜的降温制度下,以反应生成的Al(OH)3晶体作晶种,随循环次数增加,反应时间逐渐延长,表明所用晶种活性逐渐下降。以细粒Al(OH)3晶体作晶种可以更有效地从溶液中脱铝。
By Bayer process ,removal of a part of aluminum from the waste liquid with high concentration of sodium aluminate-sodium hydroxide as the form of Al(OH)3 crystal was studied .The results show that the Bayer process can meet the requirements of removing aluminum ,the waste treated can be recycled .Under suitable temperature ,using Al(OH)3 crystals formed in reactions as seed ,the reaction time is gradually extended .It is show that the seed crystal activity is gradually decreased .Using fine Al (OH )3 crystal as seed crystal is more efficient to dealumination from the solution .

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介绍了我国高铁铝土矿的资源储量和分布。根据国内外对高铁铝土矿铝铁分离开展的研究,论述了选矿法、磁化焙烧法、直接还原法、拜耳法、酸法等工艺的研究现状。
This paper introduces the reserves and distribution of high-ferric bauxite in our country and discusses research status of several processes including mineral processing method, magnetization roasting method, direct reduction method, bayer method,acid method and etc based on the research of aluminum and iron separation from high-ferric bauxite conducted home and abroad.

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德国拜耳集团在上海化工区(漕泾)工厂生产车间需要在酸性环境下使用,通过防腐蚀施工处理达到使用要求.本文结合工业厂房楼地面耐酸防腐工程施工过程介绍了施工工艺流程、施工方法及施工中应注意的问题.
Bayer Group of Germany in Shanghai Chemical Industry Park ( Caojing ) factory production workshop in acidic environment, through the anticorrosion construction process requirement. This combination of industrial plant floor acid-resistant anticorrosion engineering construction introduces the construction technological process, construction method and matters needing attention in construction.

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实验室采用DTA-TG，SEM-EDS等手段对海外矿拜尔法赤泥合成聚合氯化铝铁进行了研究，重点试验了原料配比、助剂种类条件，工艺过程影响因素，确定PACF的最佳制备条件，最后对实验室合成的PACF进行了混凝对比，表明采用海外矿拜耳法赤泥合成的PACF浊度去除率高达92%，略优于市售PAC产品混凝效果，此技术的成功研发为赤泥综合利用开辟了一套新的途径。
The DTA-TG, SEM-EDS and other means of overseas mineral Bayer red mud synthetic polymeric aluminum ferric chloride was studied, on the ratio of raw materials, additives, factors of effect of process, to deter-mine the optimum preparation conditions of PACF, the synthesis of PACF lab for coagulation contrast, showed that the removal rate of up to 92% the overseas mineral Bayer red mud synthetic PACF turbidity, slightly better than the similar commercial PAC products, the effect of coagulation, the successful development of this technology has opened up a new way for the comprehensive utilization of red mud.

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在搭建的脱硫试验平台上采用拜耳-烧结联合法赤泥为原料,以电厂工业废气为脱硫对象,对赤泥进行湿法烟气脱硫的机理和脱硫的效果进行分析研究,认为使用联合法赤泥进行烟气脱硫具有可行性和优越性。
Based on desulfurization test platform, use Bayer-sintered joint red mud as raw material, and the mechanism and wet flue gas desulfurization desulfurization effect of red mud was analyzed, we got the idea that the flue gas desulfurization by red mud combined method was feasibility and superiority.

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在总结赤泥综合利用的基础上,通过碱激发水泥、凝石、微晶玻璃等含碱新材料的开发与研究,提出了低碱赤泥的综合利用,阐述了降低赤泥含碱量对终端应用的影响,希望以此推动拜耳法赤泥的综合利用进度。
This paper on the basis of comprehensive utilization of red mud by recent predecessors on Alkali-activated cement, concrete, glass and ceramics containing alkaline material, paper base variable waste to treasure. This will promote the progress of the comprehensive utilization of Bayer red mud.

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综述了氢氧化铝的制备方法及应用。氢氧化铝的制备方法主要有拜耳法、烧结法、水热法、溶胶凝胶法、碳分法、微乳液法、酸碱法、均相沉淀法、离子膜电解法、铝盐水解法等。氢氧化铝在陶瓷、医药、污水处理、造纸工业、阻燃剂填料、催化剂载体、化工原料等领域具有广泛应用。
In this paper, the preparation methods and applications of aluminium hydroxide were re-viewed. The preparation methods of aluminium hydroxid mainly include bayer method, sintering method, hy-drothermal method, sol-gel method, microemulsion method, carbonization method, homogeneous precipitation method and so on. Aluminium hydroxide has great potential applications in ceramics, flame retardant filler, paper industry, medicine, industrial chemicals, wastewater treatment and so on.

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拜耳材料科技开发出一系列的医用级聚碳酸酯(PC)材料,多年来已广泛应用于全球众多医疗元器件及设备制造商。本文说明肾病医疗透析器壳体材料的特性要求以提高透析疗程安全性,再探讨为透析器无氧包装而开发的新一代聚碳酸酯(PC)材料–模克隆Rx2440的材料性能。
Bayer MaterialScience developed a series of medical polycarbonate resins which are widely used by global medical device components and device manufacturers for years. This article explains the special material requirement to enhance safety of dialysis treatment, and further discusses the new polycarbonate grade-Makrolon? Rx 2440 fulifl ing the gamma sterilization trend of dialyzer packed in oxygen-free condition.

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