Minimization of the environmental impact of chrome tanning: a new process reusing the tanning floats期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

按检索

Minimization of the environmental impact of chrome tanning: a new process reusing the tanning floats

Authors:	Josep M Morera Esther Bartolí Roberto Chico Cristian Solé Luisa F Cabeza

Institution:	1. Chemical Engineering Department, Igualada School of Engineering, Universitat Politècnica de Catalunya (UPC), Plaça del Rei 15, 08700-Igualada, Spain;2. GREA Innovació concurrent, Edifici CREA, Universitat de Lleida, Pere de Cabrera s/n, 25001-Lleida, Spain;1. Inorganic and Physical Chemistry Laboratory, Central Leather Research Institute, Council of Scientific & Industrial Research, Adyar, Chennai 6000 20, India;2. Centre for Academic and Research Excellence, Central Leather Research Institute, Council of Scientific & Industrial Research, Adyar, Chennai 6000 20, India;1. Academic and Research Program, CSIR-Central Leather Research Institute, Council of Scientific and Research, Adyar, Chennai 600020, India;2. Leather Process Technology Division, CSIR-Central Leather Research Institute, Council of Scientific and Research, Adyar, Chennai 600020, India;3. Centre for Human and Organizational Resources Development (CHORD), CSIR-Central Leather Research Institute, Council of Scientific and Research, Adyar, Chennai 600020, India;1. Centre for Academic and Research Excellence (CARE), CSIR- Central Leather Research Institute, Adyar, Chennai, 600020, Tamilnadu, India;2. Department of Leather Technology, AC Tech, Anna University, Housed at CSIR- CLRI, Chennai, 600020, Tamilnadu, India;3. Regional Centre for Extension and Development, CSIR?Central Leather Research Institute, Kolkata, 700046, West Bengal, India;4. Polymer Science & Technology Division, CSIR- Central Leather Research Institute, Adyar, Chennai, 600020, Tamilnadu, India;5. Leather Process Technology Department, CSIR- Central Leather Research Institute, Adyar, Chennai, 600020, Tamilnadu, India

Abstract:	A chrome tanning process which allows the reuse of tanning floats has been developed. The most commonly used chromium salts were replaced by highly masked and basified ones. This substitution eliminates basification operation and prevents pH change and the considerable neutral salts concentration increase in the tanning float. Consequently, tanning float can be reused several times. An optimum chromium salt concentration in the tanning float between 10% and 12.5% has been determined. It has been shown that the number of times the tanning float can be reused depends on the quality of the leather grain to be manufactured. In the best case, a saving of 18 L of water per kilogram of tanned leather is calculated. This means savings of 90% of water normally used.

Keywords:
本文献已被 ScienceDirect 等数据库收录！

设为首页 | 免责声明 | 关于勤云 | 加入收藏