Method for preparing organic environment friendly snow-melting agent by using salt mud from two-alkali method

US10308519B2 · kind B2 · utility

Assignee

• CHINA SALT JINTAN CO., LTD. · CN

Inventors

• Liuping Chen · Beijing, CN
• Junhui Xu · Changzhou City, CN
• Juntian HAN · Changzhou City, CN
• Zhijun SU · Changzhou City, CN
• Yaoxing CUI · Changzhou City, CN
• Cuiting Leng · Changzhou City, CN

Key dates

• Filing date: Jul 21, 2017
• Grant date: Jun 4, 2019
• Expiry date: Jul 21, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/61
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed is a method for preparing an organic environment-friendly snow-melting agent by using salt mud from a two-alkali method, relates to the field of environmental protection and resource utilization of solid wastes. The method includes the following steps: first, stirring and reacting an organic acid and the salt mud from a two-alkali method at room temperature to obtain a slurry; filtering the slurry to obtain a filtrate; the filtrate is then concentrated and dried by centrifugal spray drying to obtain a solid powder; granulating the solid powder. The method not only realizes the recycling of salt mud solid waste, but also greatly reduces the production cost of organic environment-friendly snow melting agent by turning waste into wealth, moreover, due to the existence of trace ions, the ability of melting snow and ice has obvious synergistic effect.