What is the circular economy? To a large extent, it is a scientific operation of the national economy and the basis for sustainable social development. It can be used as a national policy. However, to be specific, it is actually a production model characterized by recycling of resources, zero waste and zero emissions. And this "concrete" is not what every chemical company pursues?
Phosphogypsum is the largest solid waste in the chemical industry. Now, the mainstream wet-process phosphoric acid process in the country produces 5 tons of phosphogypsum per ton of phosphoric acid. The country's annual phosphogypsum emissions can reach 20 million tons. These phosphogypsums are basically not used, and they not only occupy a large amount of land, but also contain harmful impurities that cause environmental and ecological harm. Shandong Lubei Chemical Industry Factory has focused on the development of recycling economy for many years, it has overcome the phosphogypsum sulfuric acid co-produced cement technology, solved the problem of the phosphogypsum waste residue occupying cultivated land, polluting the environment, in the production of phosphate fertilizer, while producing high-quality sulfuric acid and cement With the saving of pyrite and limestone resources, the company has achieved sustained and rapid development.
Chromium salt has been produced in China for half a century. The main method is calcium calcination. Every ton of chromium salt produces about 2 tons of chromium slag. Due to the poisonous hexavalent chromium, the country has accumulated 310. More than 10,000 tons of toxic chromium residue have become the enemies of environmental protection in various regions. This is also a culprit in the development of chromium salt companies. Many chromium salt companies were closed due to the inability to solve the problem of chromium residue contamination. However, chromium slag can be used as a raw material for cement and iron and steel industry instead of dolomite, and it can be detoxified during use. Some chromium salt companies use chromium slag for comprehensive cross-industry utilization, achieving harm for the benefit of the company and the development of the enterprise.
There are many similar examples. It can be said that the chemical industry is an industry that specializes in the production, purification, and conversion of various materials into treasure. It has a unique advantage in realizing the recycling of resources and the development of a recycling economy. And each chemical company is the practitioner of this activity. The quality of the country's recycling economy depends on how well each chemical company turns waste into treasure.
Therefore, in the tide of this circular economy, every chemical company can do a great job. Which company has solved its "three wastes" problem? Which company is the hero of the circular economy? Which company does not do well, I'm sorry, you may not be far away from the tide.
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