Technology improves process safety, innovation ensures enterprise safety

Technology improves process safety, innovation ensures enterprise safety Liu He China Sinochem Group Shenyang Xinji Chemical Co., Ltd. As a fundamental way to ensure the stable operation of enterprises, maintain the economic benefits of enterprises, and protect the vital interests of employees of enterprises, the relevant state departments have established strict standards for this legislation and supervised enterprises to implement safety production laws and regulations. As the core driving force of enterprise development, technology is an important force to support safe production. It is the unremitting pursuit of Shenyang Xinji Chemical Co., Ltd. to guarantee the safe production of enterprises, to pursue the intrinsic safety of enterprises with innovation, to defend corporate honors with scientific means, and to establish the brand of enterprise safety with advanced technology. Founded in 1998 , Shenyang Xinji Chemical Co., Ltd. is located in Shenbei New District of Shenyang City. It covers an area of ​​nearly 100,000 square meters and is engaged in the development, production and sales of chemical raw materials, intermediates and fine chemicals, and the development of chemical equipment technology. Transferred technology company. The company has been rated as a provincial and municipal high-tech enterprise for many years and was named a national high-tech enterprise in 2008. Xinji's main product is Fluorescent Brightener CF-351 , which is the result of the national “Ninth Five-Year Plan” key scientific and technological research project. It owns the independent intellectual property rights of the project and is the first in China and internationally advanced. The company has become the world's first. Two companies that realize the industrialization of this product. The fluorescent whitening agent CF-351 was awarded the National Torch Program in 1999 and 2007 respectively. In 2000, it was awarded the title of “National New Product” by the State Economic and Trade Commission and the title of “The 4th Excellent New Product of Liaoning Province”. The project “1000-ton fluorescent brightener CF-351” was listed as “High-tech Industrialization Demonstration Project” by the State Planning Commission in 2001. It passed the acceptance of the expert group in October 2004 and was awarded Liaoning Province in 2007. The third prize of the Science and Technology Achievement Transformation Award, the product was awarded the title of Shenyang Famous Brand in 2007. In the face of numerous honors, the company always adheres to technology as the guide, regards safety production as the top priority of the enterprise, and promotes safety production with technological innovation. In 2010 , Xinji Company carried out innovative technological transformation of the company's production process. Through technological transformation, the company eliminated major process risks in the production work, no longer produced hazardous waste in the production process, improved process safety and reduced corporate safety risks. At the same time, it simplifies the operation process, reduces the production cost, and achieves a win-win situation in both safety and economic benefits. In the last step of the process synthesis, the original company's reaction with monomeric compounds was improved by technicians. Now the company uses polymers instead of monomer compounds to react, and the reaction efficiency is improved, and the product yield is 20% higher than before . Due to the strong irritating odor of the monomeric compound, the synthesis reaction is carried out in a closed reaction vessel, and the equipment is exposed to the risk of overpressure explosion. The sealing performance and the pressure-proof explosion-proof performance of the equipment are required to be high, and the polymer odor is moderate and non-irritating. The synthesis reaction can be carried out in an atmospheric pressure reactor that communicates with the outside world, eliminating the risk of overpressure explosion. Colleagues also reduce the requirements of sealing equipment and reduce equipment maintenance and maintenance pressure. Secondly, the polymer has a higher boiling point than the monomer compound, is less volatile, and has a lower flammability than the monomer compound, thereby improving the transportation and storage safety of the raw material. Monomer compounds are hazardous chemicals that need to be stored in a Class A warehouse. Polymers are general chemical materials that can be stored in Class C warehouses, reducing the risk of material storage safety. The shop also reduces operational risks during the use of raw materials. . Further, after the synthesis reaction is carried out by using a polymer instead of the monomer compound, the reaction by-product is changed from a low molecular halogen hydrocarbon to a high molecular halogen hydrocarbon. Polymeric halogenated hydrocarbons have low toxicity and higher boiling point, which is beneficial to liquefaction recovery in the workshop. The low molecular halogenated hydrocarbons are gaseous at normal temperature, and need to be cooled and pressurized to be liquefied and recovered. The process is complicated, the safety risk is high, and leakage and explosion accidents are easy to occur, and the recovered high-pressure liquefied low-molecular halogenated hydrocarbons belong to the class 2 hazardous chemicals. There are higher requirements for transportation, storage and transportation. The polymer halogenated hydrocarbon is liquid at normal temperature, which is beneficial to the liquefaction recovery of the workshop. It belongs to class 3.2 hazardous chemicals and has lower molecular safety. In addition, toluene is widely used as a solvent in chemical reactions and is widely used in synthesis reactions and extraction purification. Toluene boiling point 110 °C , lightning 4.4 ° C, explosion limit 1.2% ~ 7.0% (volume), flammable, for the use and storage are required Class A explosion-proof grade. In the original process, the product needs to be refined by using toluene as a solvent. After technical transformation, the directly synthesized product satisfies the quality requirements and does not require toluene refining. The workshop does not set up toluene storage tanks, and the workshop no longer uses toluene, which eliminates major hazards and reduces the occupational health hazard in the workshop and improves the overall safety of the company. Finally, due to the elimination of the toluene refining process, the original suction filtration tank filtration and drying process were also cancelled. The organic solvent exposure operation was cancelled in the workshop, and the explosion-proof drying equipment was cancelled. The fire protection grade of the workshop was reduced from Grade A to Grade B, and the elimination was carried out. Two dangerous operating units reduce occupational health risks and effectively control safety risks. Through a series of technical transformation and upgrading projects, Xinji Company has effectively controlled the safety risks through scientific means and achieved intrinsic safety in the process. Supported by strong technology and innovative research and development capabilities, the defender is honored by the high-tech industry and seeks the intrinsic safety of the high-tech industry.

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