Method for determining content of non-metallic elements in crude lead

• Main Authors: KONG QINGBO, WANG JIN, LI YANG, ZHANG HANTIAN
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to the technical field of lead-based alloy detection, and in particular relates to a method for determining the content of non-metallic elements in crude lead. The content of non-metallic elements in crude lead is directly related to lead-containing slag of crude lead. The invention mainly solves the problems of poor detection precision caused by extensive crude lead slag-containing determination modes and non-uniform determination standards, and easy divergence of detection results during multi-party detection. The determination method comprises two times of lead contentdetection, namely direct reading spectrometer detection and EDTA titration method detection, on electrolytic lead and crude lead, and the content of non-metallic elements is calculated by analyzing the difference value of the two times of detection, so that the lead slag content of the crude lead is represented. According to the method provided by the invention, the non-metallic element content which is difficult to dire