Method for preparing carbon black for tires and color master batches from waste tire powder

• Main Author: LUO GUOLIN
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; PREPARATION OF CARBON BLACK; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a method for preparing carbon black for tires and color master batches by using waste tire powder, which comprises the following steps: by using the waste tire powder and raw oil as raw materials, respectively spraying the waste tire powder and preheated raw oil from a throat pipe section of a reaction furnace from a tire powder nozzle and a raw oil nozzle at the same time for high-temperature cracking reaction; the generated carbon black flue gas is collected, granulated and dried to obtain a target carbon black product; the waste tire powder forms negative pressure in the spray gun through compressed air and is sprayed into the throat pipe section of the reaction furnace, and the flow speed is 280-320 m/s; the mass ratio of the tire powder to the raw material oil is 1: (1-1.4). According to the invention, the waste tire powder and the raw oil are used as raw materials, are subjected to high-temperature pyrolysis at the temperature of 1600-2100 DEG C in the throat pipe section of the