"It's lit up!" With the shout of the driving commander of the caustic soda unit in the central control room, at 17:15 on April 20, Jintai Chemical Shenmu chlor-alkali 600,000 tons/year high-performance resin and supporting equipment environmental protection innovation technology industrialization demonstration project of Shaanxi Investment Group The successful test run of the caustic soda unit marked that the project officially entered the trial production stage.

Half a year of intense preparation and repeated debugging were verified at this moment, and the trial production was successful! In order to ensure the successful start of the device, at 4 a.m., all production, safety, operation and maintenance, and analysis and laboratory personnel were in place to carry out equipment status confirmation, safety risk identification, and operating environment analysis in an orderly manner according to the division of responsibilities. At 5:40, the electrolytic cell began to inject liquid; at 9:03, the electrolytic cell began to power; at 10:53, the electrolytic cell current reached the set target of 8kA; at 17:15, the synthesis furnace was successfully ignited once... So far, the 32% liquid alkali and 31% high-purity hydrochloric acid products produced by the device have reached "excellent products" through analysis and testing.

Jintai Chemical Shenmu chlor-alkali caustic soda plant has two intelligent production lines, with a single-line production capacity of 300,000 tons/year. It is currently the largest single production line in China. The device adopts the all-halogen alkali production process, and selects the most advanced Asahi Kasei zero-polar-distance ionic membrane electrolytic cell in Japan and China's advanced by-product low and low pressure steam synthesis furnace. At the same time, it is the first in the industry to use intelligent inspection robots instead of manual inspection. Inspection, realizing unmanned duty in the electrolysis plant.

Faced with the short performance test time of new equipment and equipment and the insufficient operating experience of new employees, since the on-load performance test of the first-line rectification equipment of the caustic soda unit on April 1, Shenmu chlor-alkali has united and worked hard to overcome one difficulty after another., solved one problem after another, and with strong will and hard drive, all trial production work was promoted as scheduled.

Next, with the gradual release of the production capacity of the caustic soda unit and the stable operation and debugging of each process of the polyvinyl chloride unit, it is expected that in mid-May, the first batch of the world's first set of calcium carbide method polyvinyl chloride products that all use mercury-free catalysts will be put into production. On sale, the 600,000 tons/year high-performance resin environmental protection demonstration project will be transferred to comprehensive trial production. By then, the high-quality development of Shaanxi Investment Group's green chemical sector will take a more solid step and inject strong momentum into building a high-end fine chemical industry science and technology innovation base.