Patent ID: 11926742
Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method for preparing carbon black from pyrolysis char of waste tires by a molten salt thermal treatment, comprising:
(a) heating one group or two groups of a metal chloride salt group and a metal sulfate group to obtain a molten salt, wherein the metal chloride salt group comprises zinc chloride with a mass fraction of 60% to 100%, and the metal sulfate group comprises zinc sulfate with a mass fraction of 60% to 100%;
(b) adding pyrolysis char of waste tires into the molten salt and subjecting same to a molten salt thermal treatment under a preset reaction atmosphere to perform edulcoration on the pyrolysis char of the waste tires; and
(c) separating a reaction product to obtain a secondary molten salt and treated pyrolysis char of the waste tires after the reaction is completed, washing the treated pyrolysis char of the waste tires with hot water and drying same to obtain carbon black, recycling the secondary molten salt.