Über den Technologiewandel in der Propylenoxid‐Herstellung

Bernhard, Maik; Anton, Johan; Schmidt, Franz; Sandkaulen, Florian; Pascaly, Matthias

doi:10.1002/ciuz.201700764

Cited by 15 publications

(10 citation statements)

References 24 publications

(21 reference statements)

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“…Here, the goal was to apply switch catalysis to monomers that are commercially available and already used at large scale in polymer manufacturing: namely propene oxide (9 Mt/annum worldwide production), lactide (ca. 1 Mt/annum worldwide), and phthalic anhydride (4.5 Mt/annum; Figure ) .…”

Section: Methodsmentioning

confidence: 99%

Switch Catalysis To Deliver Multi‐Block Polyesters from Mixtures of Propene Oxide, Lactide, and Phthalic Anhydride

2018

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Switchable polymerisation catalysis enables block polymer sequence selectivity from monomer mixtures, resulting in the formation of multiblock polyesters. The aluminium salphen catalyst switches between two different polymerisation mechanisms and selectively enchains mixtures of commercially available monomers: lactide, phthalic anhydride, and propene oxide. Sequential monomer mixture additions yield multi‐block polyesters featuring 3, 7, 11, 15, 19, 23, and 27 blocks. The unparalleled catalytic selectivity can be used to access completely new multi‐block polyesters relevant for future applications.

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Section: Methodsmentioning

confidence: 99%

Switch Catalysis To Deliver Multi‐Block Polyesters from Mixtures of Propene Oxide, Lactide, and Phthalic Anhydride

2018

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“…Chlorine demand g Annual Reference Reference per mass of product production year a Adjusted by the average of yield for the propylene chlorohydrin isomers 92 % based on propene [40], main by-product 1,2-dichloropropan [33]. b Hydro-chlorination route with a share 43 % of the global overall production capacity [41]. c Assumed weight-average of the molar masses 26 500 g mol −1 according to [42].…”

Section: Product Imentioning

confidence: 99%

“…Propylene oxide is produced by a variety of processes. The chlorohydrin process is the most important one [41]. It consists of two reactions [33]:…”

Section: Propylene Oxidementioning

confidence: 99%

Impact of the chlorine value chain on the demand response potential of the chloralkali process

et al. 2020

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Renewable sources of energy supply an increasing share to the electricity mix although they show much more fluctuations than conventional energy sources. Hence, net stability and availability represent very large challenges. Demand response can positively contribute to the solution of this issue as large electricity consumers adapt their consumption to the available electricity. In the past, chloralkali electrolysis has been suggested as such a large consumer. Unfortunately, its main product, chlorine, cannot be easily stored in large amounts, so that downstream processes have to operate based on a fluctuating feed. This work reviews the processes within the chlorine value chain, determines the most promising ones for flexibilisation based on their chlorine consumption, and analyses these processes in more detail to assign them to one of four flexibility categories. It is shown that 45 % of the theoretical potential could be used for demand response right away. Highlights: • A novel approach to evaluate the flexibility of chemical processes is proposed. • The flexibility potential of the whole chlorine value chain is assessed. • The chlorine-consuming processes relevant for demand response are identified. • Subsequent processes limit demand response potential of chloralkali process. • The dichloroethane and the chloroacetic acid route have the highest potential.

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“…Switchable polymerization catalysis enchains mixtures of epoxides, anhydrides, and lactones using one catalyst in a single reactor process. ,− It is applicable to many monomers, organometallic, inorganic, or organocatalysts, − but until now, commercially relevant tin(II) catalysts were unexplored. Here, a Sn(II) alkoxide catalyst for switchable polymerization catalysis is investigated using only monomers which are both commercial and produced at large scale: l -lactide ( l -LA = 1.8 Mt/annum), propylene oxide (PO = 9 Mt/annum), and maleic anhydride (MA = 3 Mt/annum). − …”

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confidence: 99%

Switchable Polymerization Catalysis Using a Tin(II) Catalyst and Commercial Monomers to Toughen Poly(l-lactide)

et al. 2021

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Sustainable plastics sourced without virgin petrochemicals, that are easily recyclable and with potential for degradation at end of life, are urgently needed. Here, copolymersand blends meeting these criteria are efficiently prepared using a single catalyst and existing commercial monomers l -lactide, propylene oxide, and maleic anhydride. The selective, one-reactor polymerization applies an industry-relevant tin(II) catalyst. Tapered, miscible block polyesters are formed with alkene groups which are postfunctionalized to modulate the polymer glass transition temperature. The polymers are blended at desirable low weight fractions (2 wt %) with commercial poly( l -lactide) (PLLA), increasing toughness, and elongation at break without compromising the elastic modulus, tensile strength, or thermal properties. The selective polymerization catalysis, using commercial monomers and catalyst, provides a straightforward means to improve bioplastics performances.

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Über den Technologiewandel in der Propylenoxid‐Herstellung

Abstract: MaiK berNHarD | JoHaN aNtoN | fraNz scHMiDt | floriaN saNDKauleN | MattHias Pascaly Abb. 1 PrOPylenOxID-PrODuKtIOnsverfAhrenDie verschiedenen 2, 3] und ihre Anteile an der weltweit produzierte Menge.

Cited by 15 publications

References 24 publications

Switch Catalysis To Deliver Multi‐Block Polyesters from Mixtures of Propene Oxide, Lactide, and Phthalic Anhydride

Switch Catalysis To Deliver Multi‐Block Polyesters from Mixtures of Propene Oxide, Lactide, and Phthalic Anhydride

Impact of the chlorine value chain on the demand response potential of the chloralkali process

Switchable Polymerization Catalysis Using a Tin(II) Catalyst and Commercial Monomers to Toughen Poly(l-lactide)

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