19 16-year-old Dajing Salt Plant was officially put into production.
19 17 Li Yong soda plant was established, and Fan Xudong, Wang Xiaoxu and Chen Tiaofu successfully produced soda.
The 1920 "Red Triangle" brand trademark of Li Yong Alkali Industry Company was approved by the Trademark Office, and the registration number was 165 10.
1922 Huanghai Chemical Industry Research Association was established in Tanggu.
1924, the first trial production of soda ash in Li Yong Soda Plant.
1926 "Red Triangle" brand high-quality soda ash produced by Li Yong Soda Factory won the gold medal at the World Expo held in Philadelphia, USA.
1926, Li Yong soda plant produced detergent (baking soda) for the first time in China.
1926, Neptune society was established and Neptune magazine was published, which was the first private enterprise publication in China.
1930, the "Red Triangle" brand high-quality soda ash produced by Li Yong Soda Factory won the gold medal of Belgian industrial and commercial "International Expo".
194 1 year, the new alkali production experiment was successful, and it was named "Hou's alkali production method".
1955, Li Yong soda plant and Jiuda refined salt plant merged and renamed as "public-private joint venture Li Yongjiu Big Chemical Company Sales Plant", referred to as permanent sales plant.
1968 was renamed Tianjin soda plant of the Ministry of Chemical Industry.
1972 was renamed Tianjin soda plant.
1978 synthetic ammonia was successfully tested and started to produce synthetic ammonia.
1979 "red triangle" brand soda won the national gold medal and certificate of quality products. Formal production of agricultural ammonium chloride.
The expansion project of 600,000 tons of soda ash started on 1985, which is one of the national key infrastructure projects.
Medicinal baking soda was put into production in 1987, which was the first production in China.
1989 "Red Triangle" brand soda ash and Haiwangpai agricultural ammonium chloride won the gold medal and silver prize in the first Beijing International Expo respectively.
1989 The heavy ash project passed the completion acceptance.
1989 "Red Triangle" brand soda ash and Haiwangpai agricultural ammonium chloride both won the gold medal in the second Beijing Expo.
1995 Tianjin soda plant won the honorary title of "National Customer Satisfaction Product".
1998 "Neptune" brand agricultural ammonium chloride and compound fertilizer were recognized as "national recommended products" by China Agricultural Society.
In 2000, the website of Tianjin Soda Factory was put into trial operation.
200 1 The largest "Red Triangle" square in Binhai New Area named after the famous trademark of Tianjin Soda Factory was opened. The quality management system has been certified by UKAS international standards. The quality management system has passed the ISO900 1:2000: 2000 quality system certification.
In 2003, Red Triangle brand soda won the title of "China Famous Brand Product".
In 2004, industrial heavy soda ash and industrial light soda ash won the export inspection-free certificate issued by the General Administration of Quality Supervision, Inspection and Quarantine.
In 2005, Haiwang brand agricultural ammonium won the title of "China Famous Brand Product".
In 2005, it was awarded the title of "National Advanced Unit of Spiritual Civilization Construction" by the Central Steering Committee of Spiritual Civilization Construction. It was awarded the title of "National Advanced Enterprise Culture Construction Unit" by China Enterprise Culture Research Association. It was awarded the title of "Advanced Unit of Ideological and Political Work in China Chemical Industry" by China Chemical Workers' Ideological and Political Work Research Association.
In June 5438+February 65438+August 2005, the relocation and reconstruction project of Bohai Chemical Industry Park and Tianjin Soda Factory was officially started in Tianjin Lingang Industrial Zone.
20 10 10 The shutdown of ammonia-alkali system in Tianjin Soda Plant marks the orderly shutdown and withdrawal of all devices in the old plant area.
On August 6th, 20 10, the No.2 coal gasification production unit in Tianjin Alkali Plant New Area successfully ignited the coal.
20 13 12 3 1, Tianjin Bohai Chemical Group Co., Ltd. established Tianjin Bohua Li Yong Chemical Co., Ltd. on the basis of Tianjin Soda Plant, absorbing Tianjin Luchang Haijing Group Co., Ltd., Tianjin Luchang Hangu Saltworks Co., Ltd. and Tianjin Jinneng Investment Company to increase capital and share.