{"id":4071,"date":"2024-02-05T05:57:42","date_gmt":"2024-02-05T05:57:42","guid":{"rendered":"https:\/\/longchangchemical.com\/?post_type=product&p=4071"},"modified":"2025-12-17T03:07:58","modified_gmt":"2025-12-17T03:07:58","slug":"fdca-cas-3238-40-2","status":"publish","type":"product","link":"https:\/\/longchangchemical.com\/de\/product\/fdca-cas-3238-40-2\/","title":{"rendered":"2,5-Furandicarboxyls\u00e4ure CAS 3238-40-2"},"content":{"rendered":"

2,5-Furandicarboxyls\u00e4ure CAS 3238-40-2<\/strong><\/h1>\n\n\n\n\n\n\n\n\n
Artikel<\/td>\nSpezifikationen<\/td>\n<\/tr>\n
Erscheinungsbild<\/td>\nWei\u00dfes Pulver<\/td>\n<\/tr>\n
Gehalt (HPLC)<\/td>\n\uff1e99.5%<\/td>\n<\/tr>\n
Schwermetalle\uff08mg\/kg\uff09<\/td>\n\u22642.0<\/td>\n<\/tr>\n
Verlust beim Trocknen<\/td>\n\u22640,5%<\/td>\n<\/tr>\n
Esche<\/td>\n\u22642.0%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

2,5-Furandicarboxyls\u00e4ure Verwendung<\/strong><\/p>\n

1. 5-Hydroxymethylfurfural ist eine wichtige Plattformverbindung f\u00fcr die oxidative Derivatisierung von 2,5-Furandicarbons\u00e4ure (2,5-Furandicarbons\u00e4ure), die als erneuerbare und umweltfreundliche Alternative zu erd\u00f6lbasierter Terephthals\u00e4ure gilt. Dar\u00fcber hinaus ist die
\n2. 2,5-Furandicarbons\u00e4ure kann auch als Ersatz f\u00fcr Isophthals\u00e4ure, Butandis\u00e4ure, Bisphenol A, Adipins\u00e4ure usw. bei der Herstellung von biobasierten Polymeren wie Polyestern, Polyamiden und Epoxidharzen verwendet werden.
\n3. Es kann in biologisch abbaubaren Kunststoffverpackungen, technischen Kunststoffen, Nylon usw. verwendet werden.<\/p>\n

2,5-Furandicarboxyls\u00e4ure Paket<\/strong><\/p>\n

25kg\/Trommel.<\/p>\n

Versiegelt und in einer k\u00fchlen und trockenen Umgebung gelagert.<\/p>\n

Kontaktieren Sie uns jetzt!<\/b><\/strong><\/h2>\n

Wenn Sie einen Preis ben\u00f6tigen, tragen Sie bitte Ihre Kontaktdaten in das unten stehende Formular ein. Wir werden uns in der Regel innerhalb von 24 Stunden mit Ihnen in Verbindung setzen. Sie k\u00f6nnen mir auch mailen info@longchangchemical.com<\/a><\/span> w\u00e4hrend der Gesch\u00e4ftszeiten ( 8:30 bis 18:00 Uhr UTC+8 Mo.~Sa. ) oder nutzen Sie den Live-Chat auf der Website, um eine schnelle Antwort zu erhalten.<\/b><\/strong><\/h4>\n

<\/p>\n

Warum werden Katalysatoren in Pulverform nur selten bei chemischen Reaktionen verwendet?<\/p>\n

1, Begrenzung des Stofftransfers: Pulverkatalysatoren haben in der Regel eine gro\u00dfe Oberfl\u00e4che und Porenstruktur, was die Aktivit\u00e4t der katalytischen Reaktionen erh\u00f6hen soll. Allerdings k\u00f6nnen die Reaktionsmolek\u00fcle beim Eintritt in diese Poren auf Beschr\u00e4nkungen des Stofftransfers sto\u00dfen, was zu einer begrenzten Reaktionsgeschwindigkeit f\u00fchrt. Im Gegensatz dazu kann die Verwendung von Katalysatoren mit einer anderen Morphologie (z. B. k\u00f6rnig oder por\u00f6s) die Beschr\u00e4nkungen des Stofftransfers abmildern und somit die Reaktionsgeschwindigkeit erh\u00f6hen.<\/p>\n

2, Druckabfallproblem: Pulverf\u00f6rmige Katalysatoren bilden in der Regel ein dicht gepacktes Bett im Reaktor. W\u00e4hrend der Reaktion durchdringen die Reaktionspartner die Katalysatorschicht, was zu einem gro\u00dfen Druckabfall f\u00fchren kann. Dieser Druckabfall erh\u00f6ht die Betriebskosten des Systems und kann nach einer langen Betriebszeit die Wartung und den Austausch des Katalysators erforderlich machen.<\/p>\n

3, Dispersion: Pulverf\u00f6rmige Katalysatoren sind aufgrund ihrer k\u00f6rnigen Form im Reaktor schlecht dispergiert. Eine schlechte Dispersion kann dazu f\u00fchren, dass einige der Katalysatorteilchen nicht ausreichend genutzt werden, was die Effizienz und Produktselektivit\u00e4t der Reaktion beeintr\u00e4chtigt.<\/p>\n

4, Thermomanagement der Reaktion: Einige katalytische Reaktionen sind exotherm, und die Verwendung von pulverf\u00f6rmigen Katalysatoren kann zu einem W\u00e4rmestau im Katalysatorbett f\u00fchren, was das W\u00e4rmemanagement der Reaktion erschwert. Dies kann zur Bildung von Hotspots und zu Problemen bei der Steuerung der Reaktionstemperatur f\u00fchren.<\/p>\n

Nicht alle Situationen sind jedoch f\u00fcr die Verwendung von Katalysatoren in Pulverform ungeeignet. Unter bestimmten Reaktionsbedingungen k\u00f6nnen pulverf\u00f6rmige Katalysatoren immer noch eine gute Wahl sein. Die Wahl der geeigneten Katalysatorform h\u00e4ngt von der spezifischen Art der Reaktion, den Reaktionsbedingungen und den Anforderungen an Reaktionsgeschwindigkeit, Selektivit\u00e4t und Stoff\u00fcbergang ab. In der Praxis werden Chemieingenieure die oben genannten Faktoren ber\u00fccksichtigen, um die am besten geeignete Katalysatorform auszuw\u00e4hlen.<\/p>","protected":false},"excerpt":{"rendered":"

Chemische Bezeichnung: 2,5-Furandicarbons\u00e4ure<\/p>\n

CAS-Nr.: 3238-40-2<\/p>\n

Molekulare Formel: C6H4O5<\/p>\n

Molekulargewicht: 156.09<\/p>\n

Molekulare Struktur:\"CAS<\/p>\n

\u00c4u\u00dferes Erscheinungsbild: Wei\u00dfes Pulver<\/p>\n

Dichte: 1,7400<\/p>","protected":false},"featured_media":6720,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[69],"product_tag":[],"class_list":{"0":"post-4071","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-catalysts-chemical-auxiliary-agents","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"\nChina 2,5-Furandicarboxylic acid Manufacturer CAS 3238-40-2 - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"2,5-Furandicarboxylic acid CAS 3238-40-2 is a key product of Longchang Chemical. We provide the best price. 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