Integrated reactor suitable for purifying and impurity-removing of pyrolusite leachate

Abstract

The invention discloses an integrated reactor which is suitable for the purifying and impurity-removing of pyrolusite leachate. The main structure of the reactor is that, a reactor cylinder is divided into an upper portion and a lower portion by a partitioning layer arranged in the cylinder, wherein the upper portion serves as a removing reaction zone, and the lower portion serves as a precipitating and separating zone. The removing reaction zone is divided into a main reaction zone and a filtrate zone by a filtering layer arranged in the removing reaction zone. The partitioning layer is provided with a channel for the main reaction zone to communicate with the precipitating and separating zone. A stirrer is provided in the main reaction zone. An outlet of a feeding pipe is positioned in the main reaction zone. A filtrate discharging pipe is arranged on the upper part of the filtrate zone cylinder. A precipitate discharging port is arranged close to the bottom of the precipitating and separating zone cylinder. With the reactor provided by the present invention, processes of neutralizing, iron-removing precipitating (or heavy-metal-removing sulfurizing), filtrating and gravity settling are integrated, such that land occupation of equipment and construction investment can be substantially reduced. Separating capability of the reactor is good, water quality of the filtrate is good, workload of subsequent impurity removing can be reduced, a filtrating medium is not easy to be obstructed, and the service life of the reactor is long.

Description

technical field [0001] The invention relates to a purification and impurity removal technology for pyrolusite leachate, and more specifically relates to a purification and impurity removal device suitable for pyrolusite leachate. Background technique [0002] Manganese is an important strategic resource and one of the important raw materials for the development of the iron and steel industry. Various manganese compounds are also widely used in non-ferrous metals, batteries, chemicals, soft magnetic materials, glass, ceramics and other industries. has a very important strategic position. At present, the production of manganese products is mainly based on the acid leaching method of manganese carbonate ore. In some areas where the production of manganese products is concentrated in China, the grade of manganese carbonate ore used has been reduced from 18% to 20% of manganese to only 13% to 15%. %, which is far from meeting the domestic production demand and has led to a large...

AI Technical Summary

Problems solved by technology

However, since ferric hydroxide and heavy metal sulfides are micro-flocs, they are not easy to settle. The method of gravity natural sedimentation requires a large area of ​​sedimentation tank, and the use of pressure filtration requires more power consumption, and reaction, precipitation (or pressure filtration) ) Two sets of processes require more equipment and increase infrastructure and operating costs

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