Chemical composition of acidified solution for improving permeability of coal seam

• Main Authors: PENG TIEFENG, WEN GUANGCAI, HU QIANTING, ZHAO BO, LIANG YUNPEI, TAN YOUTING
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2017
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

The invention provides a chemical composition of an acidified solution for improving permeability of a coal seam. The chemical composition is prepared from, by weight, 12%-15% of hydrochloric acid, 2%-2.5% of hydrofluoric acid, 2.5%-3% of acidification retarding agent, 1.5%-1.8% of acidification cor...