Propylene oxide (PO), as the second largest among the three major propylene derivatives, is mainly used to produce propylene glycol, polyether polyol or as a raw material for organic synthesis used in synthetic resins, foams, synthetic glycerin, organic acids, cellulose, flame retardants, plasticizers, which applications extend to furniture, home appliances, automobiles, building insulation materials, coatings and other fields. The volume of downstream derivatives is huge and the applications are getting bounteous.
 
In order to strengthen the planning of the entire propylene-related product tree, OUCC uses the CHPPO process as the main technology for propylene oxide production. The properties of the CHPPO process are that, in addition to the PO output that can be sold straightly, other raw materials or by-products can be recycled and reused pursuant to the circular economy strategy of the government. The key catalytic technology developed for the CHPPO process by the R&D team has obtained a number of domestic and foreign patents, and implemented to establish the first set of domestic process technology and equipment for the consecutive production of propylene oxide. With the laboratory PO circular production test completed, the establishment of a pilot plant shall proceed subsequently.

In recent years, a number of special ring-opening technologies in line with OUCC’s strategy in customization development have been established. Among which is the synthesized polyether polyol of special spec., which not only have improved remarkably the product quality, but also have adjusted the polymerization rate to enhance the HMW uniformity of copolymer, since the establishment of the company’s mass production capabilities of such series in 2019.
 
With each series molecular weight reached over 20,000, the physical or chemical properties of the special spec. polyether polyol can be adjusted in accordance with the specific needs. Current special spec. polyether polyols can be applied to various polyurethane (PU) resins such as surfactants, resin modifiers, raw materials for daily chemicals, adhesives, sealants, elastomers, rigid and soft foams to enhance the quality and physical properties of terminal products, ensuring the best product quality of OUCC.

Polyetheramine, as an amine compound, possesses properties such as high reactivity, high flexibility, high toughness, low viscosity, and low product hue, which can adjust and optimize the physical properties of resin, can be applied to the spheres of epoxy resin, polyurethane (PU), polyamide fiber and other resin industries, as well as to coatings, construction, and daily necessities.
 
Based on the high-precision R&D and production technology, OUCC has successfully developed high-pressure amination technology, and established the first set of domestic process technology and equipment for the production of polyetheramine derivatives (PEAs), with self-produced polyether polyols as feedstock. Presently, laboratory production and application tests have completed, mass production is expected by 2021.

As ethylenediamine (EDA), diethylenetriamine (DETA), aminoethylethanolamine (AEEA), piperazine (PIP) and other ethylenediamine-related products can be widely applied to resin additives, electroplating, pharmaceutical, agriculture, textile, paper, solvent and other industries, OUCC has used the self-produced ethanolamine as feedstock, along with the independently developed high-pressure amination and purification separation technologies to successfully establish its first set of domestic consecutive production technology for the production of ethylenediamine and its derivatives, which include ethylenediamine (EDA), diethylenetriamine (DETA), aminoethylethanolamine (AEEA), piperazine (PIP) and other ethylenediamine-related products. Presently, laboratory production and application tests have completed, mass production is expected by 2021.