Device and method for co-producing yellow phosphorus and synthesis gas by reducing phosphate ore through pressurized gasification of phosphorus coal

Abstract

The invention discloses a device for co-producing yellow phosphorus and synthesis gas by reducing phosphate ore through pressurized gasification of phosphorus coal. The device is characterized by comprising a grinding and pelletizing unit, an air separation unit, a phosphorus coal gasification reduction unit and a separation and purification unit, wherein the grinding and pelletizing unit is usedfor grinding a part of the raw materials into powder and preparing phosphorus pellets; the air separation unit is used for separating air components and preparing oxygen; the phosphorus coal gasification reduction unit is used for realizing the gasification reduction reaction of each material in the device to obtain phosphorus-containing furnace gas; the separation and purification unit is used for separating and purifying the phosphorus-containing furnace gas to obtain yellow phosphorus and clean synthesis gas; the grinding and pelletizing unit is used for supplying the obtained phosphorus pellets to the phosphorus coal gasification reduction unit; the air separation unit is used for supplying a gas material to the phosphorus coal gasification reduction unit; and the phosphorus-containingfurnace gas generated after a reaction in the phosphorus coal gasification reduction unit enters the separation and purification unit so as to obtain synthesis gas and yellow phosphorus. The method is an efficient and advanced technology for co-producing yellow phosphorus and synthesis gas.

Description

Technical field [0001] The present invention relates to the field of chemical industry, in particular to a device and method for co-producing yellow phosphorus and synthesis gas by using phosphate coal to pressurized gasification and reduction of phosphate ore. Background technique [0002] Yellow phosphorus is one of the important basic chemical raw materials. It is an important raw material for the production of thermal phosphoric acid and phosphides, and it is also an important raw material for the preparation of fine phosphate and fine organic phosphorus chemicals. At present, there are only two methods available for industrialized yellow phosphorus production: blast furnace method phosphorus production and electric furnace method phosphorus production. [0003] The process of preparing phosphorus by blast furnace method uses massive phosphate rock as raw material, silica as flux, and coke and anthracite as reducing agent and fuel, and are added to the blast furnace in a certai...

AI Technical Summary

Problems solved by technology

However, in this technology, the gasification reaction unit and the reduction reaction unit are set up separately, occupying a large space in the factory area, and the processing, maintenance and maintenance costs of the equipment are relatively high. The co-produced products are yellow phosphorus and liquid ammonia

Images