国产精品视频视频久久|新怡红院在线视频免费|成年人在线免费观看视频|久久丫免费无码一区二区|久久精品99国产精品中文|天天视频精品综合在线观看|99久久精品国产免费看不卡|亚洲AV成人一区二区三区高清

01
About Us

Located in Mengjin Advanced Manufacturing Development Zone, Luoyang HanYi Chemical Technology Co., Ltd. is a private enterprise integrating scientific research, production and sales. Founded 27 years ago, we are deeply engaged in the field of dyestuff intermediates, with mature technology accumulated over the years, combined with self-developed technology and clean production patents, we produce a variety of fine chemical intermediates and their applications, which are widely used in paper, textile, printing and dyeing and other livelihood industries, and our products are well sold in both domestic and international markets.

We are well known in the industry for our reputation, and we have deep cooperation with Clariant, Huntsman, Lanxess and other top 100 chemical companies in the world; we have established round-the-clock strategic cooperation with Anglo-Archroma, Blankphor and Transfar Group, and jointly researched and developed a number of products, such as iso-4B acid, new type of whitening intermediates and environmentally friendly dyes, covering the whole range of whitening agents. We have developed many products such as iso-4B acid, new whitening agent intermediates, environmental protection dyes and so on.

We are committed to environmental protection, honesty, efficiency and enterprise, abide by business ethics, and provide customers with a solid backing with perfect production safety management and strong environmental protection processing capacity!
 
Our company focuses on technology upgrading and talent training, set up a new product development center, laboratories, laboratories and other related units totaling 6,000 square meters, with a number of senior colleges and universities, chemical research institutes have cooperation projects, is committed to the traditional process of cleanliness enhancement and promotion, the extension of the production of self-control coverage, science and technology-driven productivity, and dare to be the first in everything.

In 2005, our company cooperated with Peking University and firstly adopted high efficient biological sewage treatment system in Henan chemical industry.
In 2010, we succeeded in the research and development of o-sulfonic acid and dinitro acid, which strengthened the DSD acid industry chain.
In 2013, we added aniline-2,5-bisulfonic acid, iso-4B acid and m-aminophenol.
In 2015, DSD acid production line was optimized, o-sulfonic acid was co-produced with powder and liquid yellow 11, and yellow and red liquid dyestuff project was promoted.
In 2017, new m-double products were added
New m-aminophenylurea in 2020





?