A production system and method for comprehensively utilizing salt lake resources to realize metal magnesium integration

Abstract

The invention discloses a production system for comprehensively utilizing salt lake resources to realize the integration of metal magnesium, including a metal magnesium production device, a device for producing PVC from ethylene directly produced by chlorinated methanol cracking, a device for producing PVC by calcium carbide method, a soda ash production device, calcium chloride Production device, the devices are connected in sequence, and the product or by-product of the previous device is the raw material for the next device; chlorine is a by-product of production in this production system, which can be directly used in the production of polyvinyl chloride, which not only solves the problem of metal magnesium The outlet for chlorine also solves the source of chlorine in PVC (polyvinyl chloride) projects, complementing each other; the raw material limestone is first used to produce calcium carbide, then calcium carbide slag is used to produce soda ash, and lye is used to produce calcium chloride or adjust brine to achieve multi-stage combined use , greatly improving resource utilization.

Description

Technical field [0001] The invention belongs to the field of comprehensive utilization of resources of chemical products, and particularly relates to a production system and a method for comprehensively utilizing salt lake resources to realize the integration of magnesium metal. Background technique [0002] Qinghai is a large resource province with many types of resources. The Qaidam Basin is China’s "cornucopia". The representative resource in Qinghai is salt lake resources. The total salt reserves of Chaerhan Salt Lake alone amount to more than 60 billion tons, and the resources of magnesium chloride Up to 4 billion tons, accounting for more than 40% of the world's total liquid magnesium resources. In addition, Qinghai has abundant resources such as hydropower, photovoltaics, natural gas, limestone, coal, lithium, and strontium. The development and comprehensive utilization of salt lake resources has broad prospects and occupies a very important position in the national econo...

AI Technical Summary

Problems solved by technology

The start-up and implementation of the Phase I and Phase II projects of Qinghai Salt Lake Industrial Chemical Co., Ltd. have further extended the development of potassium resources, and kicked off the development of sodium resources and chlorine resources. However, the overall development scale is not large and is still in its infancy. The circular economy industry chain not yet fully constructed

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