国内首套氯乙烯法二氟乙烷装置试车成功

The first domestic ethylene difluoride plant based on vinyl chloride was successfully tested

近日，从江西理文化工有限公司获悉，由该公司投资1.7亿元，建设的1万吨/年二氟乙烷装置已于近日一次性投料试车成功，标志着我国氯乙烯法生产二氟乙烷实现了工业化生产。

Recently, it was learned from Jiangxi Liwen Chemical Industry Co., Ltd. that the 10,000 tons/year difluoroethane plant built by the company with an investment of 170 million yuan has been successfully put into trial operation at one time, marking the realization of industrial production of difluoroethane by the vinyl chloride method in my country.

据江西理文化工总经理杨作宁介绍，该公司自2011年成立以来，始终秉承“勇于学习、勇于实干、勇于创新”的思想，坚持自主创新，在氟化工领域深耕细耘。公司先后成功开发出高耐渗透改性悬浮聚四氟乙烯、改性分散聚四氟乙烯、挤出管用聚全氟乙丙烯树脂等多种性能优越的高端氟聚合物。目前，公司已形成以烧碱为龙头，甲烷氯化物为中间产品，氟化物为最终产品的完整产业链。

According to Yang Zuoning, general manager of Jiangxi Liwen Chemical Industry, since its establishment in 2011, the company has always adhered to the idea of ​​"dare to learn, dare to work hard, and dare to innovate", insisted on independent innovation, and worked hard in the field of fluorine chemical industry. The company has successfully developed a variety of high-end fluoropolymers with excellent performance, such as high-penetration-resistant modified suspended polytetrafluoroethylene, modified dispersed polytetrafluoroethylene, and polyperfluoroethylene propylene resin for extruded pipes. At present, the company has formed a complete industrial chain with caustic soda as the leader, methane chloride as the intermediate product, and fluoride as the final product.

据介绍，二氟乙烷（R152a）是一种含氟化学品，作为原料在新能源材料高分子含氟聚合物制造产业不可替代。在国家“双碳”战略目标指引下，江西理文成功攻克氟化工领域关键技术壁垒，国内首套氯乙烯连续法生产二氟乙烷（R152a）工业化装置正式投产，标志着我国在含氟化学品生产领域出现新的工艺路线。该技术已获得"一种用于连续生产1,1二氟乙烷的装置和生产方法"等两项国家发明专利授权，填补了国内氯乙烯法二氟乙烷工业生产的空白。

It is reported that difluoroethane (R152a) is a fluorine-containing chemical, which is irreplaceable as a raw material in the new energy material high molecular fluorine-containing polymer manufacturing industry. Under the guidance of the national "dual carbon" strategic goal, Jiangxi Liwen successfully overcame the key technical barriers in the field of fluorine chemical industry, and the first domestic industrial device for the continuous production of difluoroethane (R152a) by vinyl chloride was officially put into production, marking the emergence of a new process route in the production of fluorine-containing chemicals in my country. The technology has been granted two national invention patents, including "a device and production method for continuous production of 1,1 difluoroethane", filling the gap in the domestic industrial production of difluoroethane by vinyl chloride.

据了解，当前国内R152a生产普遍采用乙炔法工艺，其原料乙炔主要来源于“两高一限”的电石，而氯乙烯法的原料供给充足且运输半径优势明显。理文化工具有自主知识产权的氯乙烯法二氟乙烷生产工艺，通过连续流反应设计体系，可实现R152a连续稳定工业化生产。

It is understood that the current domestic R152a production generally adopts the acetylene process, and its raw material acetylene mainly comes from calcium carbide with "two highs and one limit", while the raw material supply of the vinyl chloride process is sufficient and the transportation radius advantage is obvious. Liwen Tools has independent intellectual property rights for the production process of difluoroethane by vinyl chloride, which can achieve continuous and stable industrial production of R152a through a continuous flow reaction design system.

杨作宁表示，在“双碳”目标的指引下，氟化学品的绿色生产模式将成为未来市场的主要发展趋势。氯乙烯法生产R152a较电石法生产降碳成效非常可观，产品碳足迹预计减少50%-60%。理文化工氯乙烯法二氟乙烷装置的成功投产，不仅为行业树立了自主创新的榜样，更是积极践行国家碳排放双控制度的有利体现。

Yang Zuoning said that under the guidance of the "dual carbon" goal, the green production model of fluorine chemicals will become the main development trend of the future market. Compared with the production of R152a by the carbide method, the carbon reduction effect of the vinyl chloride method is very impressive, and the carbon footprint of the product is expected to be reduced by 50%-60%. The successful commissioning of the difluoroethane unit of the vinyl chloride method of Lihua Chemical not only sets an example of independent innovation for the industry, but also actively implements the national dual control system of carbon emissions.

杨作宁指出，在未来的发展中，氟化工行业还将面临新的机遇与挑战。需要企业不断创新，加大科研投入，才能在全球竞争中立于不败之地。唯有如此，才能推动整个行业的可持续发展，进而为实现国家的经济目标与发展战略贡献自己的力量。

Yang Zuoning pointed out that in the future development, the fluorine chemical industry will face new opportunities and challenges. Enterprises need to continue to innovate and increase investment in scientific research to remain invincible in the global competition. Only in this way can the sustainable development of the entire industry be promoted, and then contribute to the realization of the country's economic goals and development strategies.