Draft:Dejpa
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Last edited by Gloriousir (talk | contribs) 10 hours ago. (Update) |
Dejpa Oil and Bitumen Refinery Company is a privately held Iranian company involved in the production and supply of bitumen. The company is registered in Tehran, and its production site is reported to be near Hasanabad in Tehran province.[1]
History and operations
[edit]According to the company's official website, Dejpa began operating in 1983 and was founded by Hassan Sheikhi.[2] Corporate notices published in the Iranian press identify the legal entity as Dejpa Oil and Bitumen Refinery Company, a private joint-stock company registered under number 51009 and national identifier 10100961681.[3] The company states that it has supplied products to more than 20 countries; this figure has not been independently verified.[2]
Products and quality assessment
[edit]Products listed on the company's website include paving and industrial bitumen, penetration-grade bitumen, performance-grade bitumen, polymer-modified bitumen, bitumen emulsions, cutback bitumen, hydrocarbons, and petroleum mulch.[4]
According to the company's quality-control description, its bitumen emulsions undergo standardized laboratory testing and application-specific testing, including procedures for anionic and cationic emulsions.[5]
The public technical-certificate register of Iran's Road, Housing and Urban Development Research Center lists Dejpa Oil and Bitumen Refinery Company (national identifier 10100961681) for performance-grade bitumen PG 58-16, PG 58-22, PG 64-16, PG 64-22, PG 70-10 and PG 70-16, with a listed validity date of 23 Farvardin 1406.[6] The certificate image attached to that public record labels the rating as A+.[6] The company's website also lists ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 among its stated certificates and honours; the page does not provide a separate certificate number, issuing body or validity date for each item.[7] The public knowledge-based companies dashboard also lists the company, using the same national identifier, in Tehran with the status "Innovative" in the advanced materials and chemical-technology-products field; its displayed confirmation date is 17 Khordad 1405.[8] Dejpa is also named in bitumen supply notices published by the Iran Mercantile Exchange.[9][10]
In a report published on 19 May 2014, the Islamic Republic News Agency (IRNA) listed offers of 1,000 tonnes of 60/70 bitumen and 1,000 tonnes of 85/100 bitumen by a company named Rah Dejpa Bitumen and Asphalt Barrel Manufacturing Company in the export hall of the Iran Mercantile Exchange.[11]
A 2024 research paper on the viscoelastic properties of bituminous composites acknowledged assistance from Dejpa Bitumen Manufacturing Company.[12]
References
[edit]- ^ "Dejpa Oil and Bitumen Refinery company profile", Iran Estekhdam. Retrieved 1 August 2026.
- ^ a b "About Us", Dejpa Oil and Bitumen Refinery Company. Retrieved 1 August 2026.
- ^ "Notice of general meeting of Dejpa Oil and Bitumen Refinery Company", Abrar, 2020. (in Persian)
- ^ "Products", Dejpa Oil and Bitumen Refinery Company. Retrieved 1 August 2026.
- ^ "Quality Control at Dejpa", Dejpa Oil and Bitumen Refinery Company. Retrieved 1 August 2026.
- ^ a b "Dejpa Oil and Bitumen Refinery Company", Road, Housing and Urban Development Research Center technical-certificate register. Retrieved 1 August 2026. (in Persian)
- ^ "Honours and opportunities", Dejpa Oil and Bitumen Refinery Company. Retrieved 1 August 2026.
- ^ "Knowledge-based companies", public dashboard for evaluation and support of knowledge-based companies. Retrieved 1 August 2026. (in Persian)
- ^ "Supply notice", Iran Mercantile Exchange. (in Persian)
- ^ "Supply notice", Iran Mercantile Exchange. (in Persian)
- ^ "Several imported agricultural products to be offered on the commodity exchange", Islamic Republic News Agency, 19 May 2014. (in Persian)
- ^ "Multi-scale measurement of constitutive viscoelastic properties of bituminous composites considering moisture and deicing conditions", Case Studies in Construction Materials, 2024.
External links
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