DMDO for adhesives and sealants
DMDO (1,8-Dimercapto-3,6-dioxaoctane) is a di-functional mercaptan compound commonly used in the manufacturing of epoxy glues or sulfurized polymers in adhesives fields.
DMDO for chain transfer agent
DMDO (1,8-Dimercapto-3,6-dioxaoctane) is a di-functional chain transfer agent commonly used in the manufacturing of acrylic polymers.
DMDO is also a low odor mercaptan well suited in the substitution of thiolactic acid for example.
DMDS (Dimethyl disulfide), your reliable sulfiding and anti-coking solution
Dimethyl Disulfide, DMDS Evolution® E2 is the most efficient and safe sulfur provider for Hydrotreatment catalyst activation and steamcrackers coking prevention. Our experienced technical support team is available to share its knowledge on Dimethyl Disulfide DMDS Evolution® E2 and our Research and Development team in Groupement de Recherche de Lacq keeps developing programs to ease and improve its use and performances. Arkema’s world class production sites and global logistic network enable a local, easy and reliable sourcing; and our Carelflex® teams are available locally to perform your catalyst sulfiding. Our operations meet the highest certification for a consistent product quality and a service that meets our customers stringent standards.
DMDS Evolution® E2 for hydrodesulfurization catalyst sulfiding
Arkema is the only company to manufacture DMDS Evolution® E2, the most performant sulfiding agent, and provide direct turn-key catalyst sulfiding services worldwide with Carelflex®.
Dimethyl Disulfide, DMDS Evolution® E2 is the most effective sulfiding agent to be used for insitu hydroprocessing catalyst activation during startup of the unit. Hydrotreating catalyst (HDT) must be converted to the “Sulfide” forms to get the desired activity. DMDS Evolution® E2 is easy to pump, fully soluble in any hydrocarbon and has a high sulphur content to minimize delivered quantity and be cost effective.
DMDS Evolution® E2 for anti-coking in Propane and Butane Dehydrogenation units
Dimethyl disulfide, DMDS Evolution® E2, is the leading sulfur-based, anti-coking and corrosion inhibition technology that is used globally in Propane Dehydrogenation (PDH) and Butane Dehydrogenation (BDH) units. Hydrocarbons exposed to elevated temperatures form coke, which can cause metal carburization and affect heat transfer and flow dynamics. In less than 15 minutes, sufficient coke is formed to require dehydrogenation unit shut down for immediate cleaning and decoking. This anti-coking method is superior in performance and generally preferred compare to physical pipeline, cracker coating or polishing.
DMDS Evolution® E2 for hydrotreated vegetable oil (HVO) units
Dimethyl disulfide, DMDS Evolution® E2, is the market reference for activating the hydrodeoxygenation catalysts in your hydrotreated vegetable oil (HVO) unit and for maintaining the sulfur on the catalyst, compensating for the lack of sulfur in your renewable feedstock. Arkema provides trained and experienced teams as well as reliable customized equipment with its Carelflex® service for the catalyst activation. In addition to our two world-class DMDS manufacturing plants, our unique global supply chain ensures a consistent supply of DMDS to your plant for maintaining the catalyst in the sulfided active state during your operation.
DMDS Evolution® E2 for steamcracker coking mitigation
Ethylene is the largest volume of basic chemical produced by the steamcracking of hydrocarbons. Cracking to produce olefins, suffers from side reactions that product carbon monoxide (CO) and carbon deposits on the cracking coils. Excess of CO leads to off spec ethylene and while fast coking reduces cracking furnace run lengths, productivity and profitability. Fortunately, a very low concentration of DMDS Evolution® E2 injected in the cracking furnace mitigates those side reactions. DMDS Evolution® E2 decomposes in the cracking tube only into H2S and methane without solid or coke deposit. By modifying the surface composition of the cracking tube, H2S poisons the metal sites involved in the formation of CO and coke. Year after year, all licensors of ethylene furnaces and olefins manufacturers recommend injecting DMDS Evolution® E2 to meet the designed performance.
DMDS Evolution® E2, the most efficient sulfiding and anticoking polysulfide
Dimethyl disulfide, DMDS Evolution® E2, only available from Arkema, is a breakthrough formulation for a better user experience on-site, providing a pleasant fragrance. It is successfully adopted as the standard sulfiding and anticoking agent of choice at refineries, renewable diesel plants, Propane and Butane dehydrogenation units (PDH, BDH) and steamcrackers.
DiCup® R/Luperox® DCP dicumyl peroxide
DiCup® R/Luperox® DCP dicumyl peroxide is used as a high temperature crosslinker in rubber and plastics applications. Compounds containing DiCup® R/ Luperox® DCP are processed at temperatures up to 250°F (121°C) and can be cured at temperatures above 300°F (149°C). DiCup® R/Luperox® DCP can be used also in the polymerization of expandable polystyrene as finisher and as synergist for fire retardant EPS applications.
Arkema diacetone alcohol or DAA is an oxygenated solvent derived from acetone which has two alcohol and ketone functions. It has a high purity. It is colourless and odourless and has a low evaporation rate.
Diacetone alcohol is mainly used in paints and coatings (coil coatings, wood varnishes, architectural coatings…). It is a good solvent for organic peroxides and can also be used for the treatment of textiles and leather, in chemical synthesis, or as a cleaning solvent.
The Dianol® range contains polyether polyols which provide improved adhesion and resistance to high temperatures and hydrolysis. The Dianol® polyols are mainly used as building blocks in polyurethane, polyester and epoxy resins. They are also used as reactive diluents in industrial paints. The main applications for the Dianol® polyols are paints, coatings, inks, composites and adhesives.
The Dinoram® surfactants are cationic rapid setting (CRS) emulsifiers for bitumen.
It reduces the physical and chemical interactions of the fines with the air bubbles during flotation. It contributes to the elimination of the inks with the flotation sludges. Added to the pulper with the other deinking chemicals, Dipflo™ helps to increase both the deinking yield and the deinked pulp brightness.
Durastrength® acrylic impact modifiers
Arkema's acrylic-based impact modifiers are designed to deliver optimum cost and performance in rigid and flexible PVC applications for siding, fence, deck, rail, pipe and injection molding applications.