Process for the preparation of carbon black pellets

摘要

The present disclosure envisages a process for pelletizing carbon black by mixing carbon black powder and water in a proportion in the range of 0.1:2 to 2:1 with a binding agent and a dispersing agent. The dispersing agent is an amine-based surfactant and is added in a proportion in the range of 0.005-0.1% of the total mixture. The mixture is pelletized in a pelletizer and subsequently the raw pellets are dried for 20-60 minutes at a temperature between 150-250° C., to obtain the carbon black pellets. The process of the present disclosure provides uniform distribution of water on the surface of the pellets giving a uniform pellet quality, reduced water consumption, energy savings and an increased production rate.

主权项

1. A process for pelletizing carbon black, said process comprising the following steps:
obtaining a homogenous mixture of carbon black powder, water, a binding agent, and a dispersing agent; wherein, the ratio of carbon black and water is in the range of 0.1:2.0 to 2:1 and said dispersing agent is an amine-based surfactant comprising an amine and a polyether, said dispersing agent being in the range of 0.005-0.1% of said mixture; pelletizing said homogenous mixture in a pelletizer to obtain raw carbon black pellets; and drying said raw carbon black pellets for a time period of 20-60 minutes at a temperature between 150-250.degree. C., to obtain carbon black pellets.