Department of Metallurgy and Materials Engineering, Yildiz Technical University , Esenler Istanbul , Turkey.
Research and Development Center, Gizem Frit Ceramic and Glaze Industry Corp ., Hendek , Sakarya Turkey.
J Air Waste Manag Assoc. 2019 Oct;69(10):1258-1266. doi: 10.1080/10962247.2019.1654037. Epub 2019 Aug 29.
Cathode ray tube (CRT) glass contains significant amounts of alkali and alkaline earth oxides, making it a useful by-product for use in the ceramics industry. Among the various alkali oxides present, those of strontium (SrO), calcium (CaO), and magnesium (MgO) are well known flux materials used widely in the ceramics industry. The most effective flux, SrO, is also a limited resource. In this study, we aimed to develop an environmentally friendly, low-cost method for recycling CRT waste by using it to produce transparent ceramic frits on an industrial scale. Four different samples were fabricated containing between 13 and 25 wt.% CRT panel glass. The color values, sintering behaviors, phases, and microstructural properties of the corresponding samples were analyzed and compared. The results indicate that a composition containing 25 wt.% CRT panel glass could pass the ISO 10545 test. Thus, the results confirm that CRT glass can be used to inexpensively produce transparent ceramic frits at an industrial scale. : The recycling of electronic waste (e-waste), including CRT waste, has increased by high rates of computer and TV consumption. This increase in consumption is likely to increase the rate at which CRTs are discarded. However, CRTs cannot be recycled in the desired amount. Owing to the high silicate, barium and strontium content of CRTs, it has great potential for glass ceramics such as frits. CRT panel glass to produce commercial transparent frit at low cost through an industrial production route for use in single-fire sintered products. Thus, CRT wastes can be recycled cost-effective, sustainable and environmentally friendly.
阴极射线管（CRT）玻璃含有大量的碱金属和碱土金属氧化物，因此是陶瓷工业中有用的副产品。在存在的各种碱金属氧化物中，锶（SrO）、钙（CaO）和镁（MgO）是陶瓷工业中广泛使用的优质助熔剂。最有效的助熔剂 SrO 也是一种有限的资源。在这项研究中，我们旨在开发一种环保且低成本的方法，通过使用 CRT 废物来生产透明陶瓷 frit，以实现工业化规模。制备了四个不同的样品，其中 CRT 面板玻璃的含量分别为 13%和 25%wt%。分析并比较了相应样品的颜色值、烧结行为、相组成和微观结构性能。结果表明，含有 25%wt% CRT 面板玻璃的组成物可以通过 ISO 10545 测试。因此，结果证实 CRT 玻璃可用于以低成本在工业规模上生产透明陶瓷 frit。
电子废物（包括 CRT 废物）的回收利用呈高速增长趋势，这主要是由于计算机和电视的消费增加所致。这种消费的增加可能会增加 CRT 被丢弃的速度。然而，CRT 的回收量并不能满足需求。由于 CRT 中含有高硅酸盐、钡和锶，因此它在玻璃陶瓷（如 frit）方面具有很大的潜力。通过工业化生产路线，用 CRT 面板玻璃生产商业用透明 frit，从而以低成本回收 CRT 废物，实现可持续和环保的目的。
