I. Core Adsorption Performance Standards

Adsorption performance is the primary indicator for evaluating the quality of apricot shell gold-recovery activated carbon, directly determining gold recovery rates and production efficiency. Industry standards dictate that high-quality carbon must have an iodine adsorption value of ≥900 mg/g and a compliant methylene blue adsorption value; this ensures effective capture of gold-cyanide complexes and suitability for mainstream extraction processes such as Carbon-in-Pulp (CIP) and heap leaching. Chengde Huajing strictly adheres to industry testing protocols, conducting spot checks on the adsorption performance of every batch to control quality at the source and prevent the distribution of substandard products characterized by poor adsorption or high gold loss.

II. Physical Strength and Particle Size Standards

Gold mining operations involve complex conditions that impose strict requirements on the abrasion resistance and particle size specifications of the activated carbon. Established standards require high-quality products to possess a mechanical strength of ≥95%; they must be resistant to abrasion and erosion and not prone to pulverization, thereby effectively preventing carbon loss and gold entrapment during production. Standard particle sizes typically include 6–12 mesh and 8–16 mesh specifications; uniform sizing and the absence of fines balance adsorption rates with screening efficiency, making the product suitable for continuous, large-scale gold mining operations and serving as a key physical indicator for production stability.

III. Basic Impurity Standards

Fundamental indicators—such as moisture content, ash content, and pH value—are crucial for assessing the quality stability of apricot shell gold-recovery activated carbon. Industry standards require moisture content ≤10%, ash content ≤5%, and a pH value maintained between 6.0 and 9.0, ensuring impurity levels remain within controlled limits. Strict implementation of these comprehensive quality testing standards ensures stable adsorption performance, extends service life, and reduces production costs, serving as a vital reference for gold mining enterprises when procuring high-quality extraction consumables.

Chengde Huajing is a source manufacturer of apricot shell charcoal, and can customize production according to specific working conditions and usage scenarios. Please feel free to contact us if you have any needs.