废陶瓷在含铅废水处理中的应用

目前,中国陶瓷工业废料已逐年增多。潮州是一个瓷都,然而陶瓷废料已对本地环境造成一定的压力。因此,将这些陶瓷废料变废为宝是当前的重要任务。试验证明,掺杂40%瓷土和一定比例淀粉的废陶瓷粉,在800℃下煅烧成型的多孔陶瓷对铅离子有一定的吸附能力,铅去除率达49.2%。上述多孔陶瓷经过再生实验,也取得了理想的再生应用效果。     

35%除草胺EC对夏玉米、花生田杂草的效果及安全性

田间试验结果表明，35%除草胺EC对夏玉米、花生田杂草具有较好的防除效果，安全性也较高。用35%除草胺EC120-150ml/667m^2药后15d总体株防效达83.25%-89.62%，药后30d总体株防效及鲜重防效分别达84.50%-92.47%和85.31%-92.13%。     

废陶瓷在水处理中的资源化

陶瓷工业废料废渣日益增多,对城市环境造成压力而且限制了陶瓷工业的可持续发展.归纳了陶瓷废料的来源和分类,掺杂4%田菁粉在800℃下煅烧成功制备了多孔陶瓷,对含Ni废水中Ni的吸附去除率达到85.68%;上述多孔陶瓷的再生可行而且取得了理想的再生应用效果.     

陶瓷厂抛光砖废料再利用的研究

本实验在内墙釉面砖以及小地砖坯料配方基础上,掺入回收抛光砖废料,通过综合分析研究和实验,使其抛光废料用量达到35~50 wt%。当抛光砖废料加入量50 wt%以上的配方,其吸水率控制在4.5%以下,收缩一般在8.5~10.5%内波动;当抛光废料用量占35wt%时,利用掺杂回收废料生产的内墙釉面砖吸水率可控制在5~6%,收缩率在6~7%之间,完全达到产品各性能要求。该方案有效解决抛光砖废料处理问题,实现经济和环保的自然和谐发展。     

Mobius与Dow合作开发新的聚氨酯泡沫再生技术

ｏｂｉｕｓ技术公司和Ｄｏｗ化学公司签定合作开发聚氨酯泡沫再生技术协议。该协议将充分发挥Ｍｏｂｉｕｓ公司聚氨酯再生技术的优势 ,在再生工艺、设备、聚氨酯中间体等方面取得进步。在聚氨酯泡沫的生产和制作过程中产生的废料高达15 % ,生产商正在寻找新的办法来回收这些昂贵的废料。Ｍｏｂｉｕｓ公司的再生工艺是将废料研磨成微粉 ,作为一种添加剂加入到新的泡沫生产过程中。随着欧洲提高汽车中可重复利用部件质量百分比的立法日益迫近 ,汽车生产供应商正在将注意力转向塑料的可重复利用。Ｍｏｂｉｕｓ公司和Ｄｏｗ化学公司正在与主要的…     

Mobius与Dow合作聚氨酯泡沫再生技术

Ｍｏｂｉｕｓ技术公司和Ｄｏｗ化学公司签定合作开发聚氨酯泡沫再生技术协议。该协议将充分发挥Ｍｏｂｉｕｓ公司聚氨酯再生技术的优势 ,在再生工艺、设备、聚氨酯中间体等方面取得进步。在聚氨酯泡沫的生产和制作过程中产生的废料高达１５ % ,生产商正在寻找新的办法来回收这些昂贵的废料。Ｍｏ ｂｉｕｓ公司的再生工艺是将废料研磨成微粉 ,做为１种添加剂加入到新的泡沫生产过程中。随着欧洲提高汽车中可重复利用部件重量百分比的立法日益迫近 ,汽车生产供应商正在将注意力转向塑料的可重复利用。Ｍｏｂｉｕｓ公司和Ｄｏｗ化学公司正在与…     

涤纶废料的综合利用

近年来我国涤纶工业发展迅速,产量达20多万吨。在涤纶树脂生产、加工和应用过程中产生的废料约占10%—15%。该废料量大价廉,回收利用是一个急待解决的问题。国外50年代就开始了涤纶废料的应     

PET废料降解制不饱和树脂的研究

本文系统地研究了ＰＥＴ废料再生时，丙二醇用量对ＰＥＴ废料降解程度的影响及醇解产物与马来酸酌（ＭＡＨ），苯乙烯等酯化过程的工艺条件与再生树脂粘度、固化时间的关系。实验结果表明，ＰＥＴ废料再生不饱和树脂（ＵＰ树脂），具有良好的化学性能。     

安全,节能及环境保护

<正>TQ 340.68-340.6920144291再生纤维世界Mahapatra N.N.…;Colourage,2013,60(8),p.54(英)综述性论文。回收和再生纺织品同时具有环境和经济效益。每回收1kg旧衣服,可以减少:(a)3.6 kg二氧化碳排放;(b)减少6000 L用水量;(c)减少0.3 kg化肥和0.2 kg农药。回收的纺织品中约有50%可再利用,50%可再生。再生用纺织材料一般可分为消费者用过的废料和工业用后废料。这篇文章综述了包括聚酯、聚酰胺、棉花和羊     

油剂及其他助剂

20045337含有天然岩浆石的多功能纤维及其加工方法IbkesTechnologiesCo.Ltd.;WO03-056075(2003.7.21)(英)这种新型多功能纤维是采用0.5%-5%质量百分比的天然岩浆石粉末制成。粉末的粒径为0.2-3μm,其成分主要由如下组成:80%-85%二氧化硅,5%-10%三氧化铝,2%-5%氧化钾,2%-3%氧化钠,1%-2%氧化钙,1%-2%三氧化二铁,0.5%-1%氧化镁,0.1%-0.5%二氧化钛,0.01%-0.1%氧化锰。这种多功能纤维可释放300-500/mL离子,远红外辐射率达85%-95%。专利也同时提供了这种多功能纤维的生产方法。(沈莉莉)     

Evaluation of solid wastes in the manufacture of ceramic tableware glazes

The recovery and reuse of industrial wastes are of great importance to the environment. Today, a large amount of waste is produced due to marble production, and it is extremely important to bring such wastes to the ceramic industry, to solve the pollution problem and to provide cost-efficient ceramic production. In this study, marble waste was used for ceramic earthenware glaze and body formulations. Marble waste was used in two different formulations as glaze and body. Chemical analysis, morphological features, crystallographic information of different formulations were made with XRF, SEM and XRD, respectively. When the hardness test results of the ceramic body and glazed samples were examined, the hardness values of the marble waste added samples increased by 1.9% compared to the standard samples. According to the results obtained, it has been seen that using marble waste in the ceramic industry is very important for both economic and environmental reasons.     

利用粉煤灰等工业废料制备日用陶瓷的研究

针对目前火电厂大量排放粉煤灰,陶瓷工业产生大量废匣钵、废瓷粉但得不到充分利用的现象,为了使其变废为宝,本实验在长城陶瓷有限公司成熟的注浆泥配方的基础上,利用正交实验设计配方,经调整配方组成,加入了粉煤灰等工业废料,现己研制出清洁生产日用陶瓷的配方。其中粉煤灰、废匣钵、废瓷粉的含量分别是10%,10%,8%,工业废料的含量合计达到了28%。由于粉煤灰、废瓷粉和废匣钵的价格低廉,应用此技术则可以为企业带来可观的经济效益。     

高掺量工业废渣建筑陶瓷锦砖的研制

研究了利用粉煤灰和铬渣的已有组分,分别以超过65%的粉煤灰、铬渣与15%左右的粘土、20%左右的长石,在1220～1240℃烧结,获得吸水率为0.3%以下,性能优于国家标准（GB/T 4100-2006）的两种高掺量工业废渣建筑陶瓷锦砖。针对坯料球磨后的泥浆悬浮性不好,坯料成型性能较差的现象,采用添加羧甲基纤维素钠（CMC）提高高掺量工业废渣砖坯泥流变性和成型性能,以达到成型工艺的要求。既为制备陶瓷所需的天然原料找到了替代品,又实现了对工业废渣的资源化,减量化,无害化处理。     

利用陶瓷废料制作手工艺术砖

利用90%的陶瓷工业废料,在1230℃～1250℃的温度下烧成手工艺术砖,该处理工艺成本低廉,艺术效益明显,可以为陶瓷工业废料再利用提供新思路。     

工业固体废弃物在陶瓷工业中的应用

本文综述了工业固体废弃物的来源及其在陶瓷工业中的应用,并展望了其应用前景。     

From high-volume industrial waste to new ceramic material: The case of red gypsum muds in the TiO2 industry

The present study aims to apply the principles of circular economy, using special inorganic waste (in particular, red gypsum muds from a TiO₂ plant in Tuscany, Italy) to produce ceramic materials for the construction and building industries. Red gypsum (RG) muds produced during more than 10 years of industrial processing were chemically and mineralogically characterized by X-ray fluorescence spectrometry (XRF), X-ray powder diffraction (XRPD), scanning electron microscopy with energy dispersive X-ray spectrometer (SEM/EDS), and thermal analyses (TA). The analyses testify that RG waste production is chemically and mineralogically constant over time, and therefore suitable to be used as a secondary raw material in industrial ceramic production. Ceramic specimens have been realized using an extremely high amount of the RG waste (up to 70%) and characterized using the same chemical-mineralogical techniques, revealing that anhydrite, pyroxene, and Fe/Ti oxides are the main crystalline phases, embedded in a glassy compact matrix. Overall results indicate that the production of ceramic materials could represent a definitive and sustainable solution for the problematic management of the large volumes of RG waste deriving from TiO₂ plants.     

Phosphate waste rocks recycling in ceramic wall tiles: Technical performances

The phosphate mining industry produces large amounts of waste rocks during the open-pit mining operation. In the present paper, phosphate waste rocks, abundant in different regions of Morocco, are investigated as a candidate material for partial/entire replacement of conventionally used industrial minerals. Several recipes for the production of tiles are tested, based on raw materials from five representative phosphate waste rocks mine sites and a raw clay from Safi's region in Morocco. The phosphate waste rocks are shown to be mainly composed of phyllosilicates (smectite, sepiolite, and palygorskite), carbonates (dolomite and calcite), and silica frameworks (quartz, tridymite, and cristobalite) as major phases. The raw samples and calcined mixtures were characterized by using X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD), thermogravimetric analysis (TGA), and Fourier transformed infrared spectroscopy (FTIR). Properties analyses revealed that the produced ceramic tiles can be classified as porous bodies. The tiles based on 100% of phosphate waste rocks have shown excellent mechanical properties (～55 MPa) in terms of compression and they can be used in the traditional wall tiles called “Zellige” in Morocco.     

利用工业废料研制再生陶瓷初探

为了材料的充分循环,实现可持续发展,研究人员对回收工业废料用做陶瓷原料的技术进行了探索。本文阐述了再生陶瓷的研发状况,介绍了其粉体制备、坯料、配方、成型和烧成工艺,同时还针对节能环保的要求,研究了降低烧成温度和缩短烧成周期的策略。回收废瓷粉、废玻璃粉、燃烧灰烬、废粘土、废赤泥(氧化铝工业废料)和粉煤灰等工业废渣,配成多种陶瓷坯料,并测试了各种坯料配方的物理特性,确定了每种配方的烧成温度。配方中添加废玻璃可以有效地降低烧成温度。研制出的一种再生陶瓷的可行性坯料配方是:80-20%废瓷粉,20-80%燃烧灰烬,30%废玻璃粉。坯料干压成型,经1100℃烧成后,吸水率为9.9%,体积密度为2.52g/cm3。该坯料配方可采用速烧工艺。