{"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\/pt\/product\/fdca-cas-3238-40-2\/","title":{"rendered":"\u00c1cido 2,5-furandicarbox\u00edlico CAS 3238-40-2"},"content":{"rendered":"

\u00c1cido 2,5-furandicarbox\u00edlico CAS 3238-40-2<\/strong><\/h1>\n\n\n\n\n\n\n\n\n
Itens<\/td>\nEspecifica\u00e7\u00f5es<\/td>\n<\/tr>\n
Apar\u00eancia<\/td>\nP\u00f3 branco<\/td>\n<\/tr>\n
Conte\u00fado (HPLC)<\/td>\n\uff1e99.5%<\/td>\n<\/tr>\n
Metais pesados\uff08mg\/kg\uff09<\/td>\n\u22642.0<\/td>\n<\/tr>\n
Perda na secagem<\/td>\n\u22640,5%<\/td>\n<\/tr>\n
Cinza<\/td>\n\u22642.0%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00c1cido 2,5-furandicarbox\u00edlico Uso<\/strong><\/p>\n

1. O 5-hidroximetilfurfural \u00e9 um composto de plataforma fundamental para a derivatiza\u00e7\u00e3o oxidativa do \u00e1cido 2,5-furandicarbox\u00edlico (\u00e1cido 2,5-furandicarbox\u00edlico), que \u00e9 considerado uma alternativa renov\u00e1vel e ecol\u00f3gica ao \u00e1cido tereft\u00e1lico derivado do petr\u00f3leo. Al\u00e9m disso, o
\n2. O \u00e1cido 2,5-furandicarbox\u00edlico tamb\u00e9m pode ser usado como substituto do \u00e1cido isoft\u00e1lico, do \u00e1cido butanodi\u00f3ico, do bisfenol A, do \u00e1cido ad\u00edpico etc. na prepara\u00e7\u00e3o de pol\u00edmeros de base biol\u00f3gica, como poli\u00e9steres, poliamidas e resinas ep\u00f3xi.
\n3. Pode ser usado em embalagens pl\u00e1sticas biodegrad\u00e1veis, pl\u00e1sticos de engenharia, n\u00e1ilon, etc.<\/p>\n

Pacote de \u00e1cido 2,5-furandicarbox\u00edlico<\/strong><\/p>\n

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

Selado e armazenado em um ambiente fresco e seco.<\/p>\n

Entre em contato conosco agora!<\/b><\/strong><\/h2>\n

Se precisar do Price, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato dentro de 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail info@longchangchemical.com<\/a><\/span> durante o hor\u00e1rio comercial (das 8h30 \u00e0s 18h UTC+8 de segunda a s\u00e1bado) ou use o bate-papo ao vivo do site para obter uma resposta imediata.<\/b><\/strong><\/h4>\n

<\/p>\n

Por que os catalisadores em p\u00f3 raramente s\u00e3o usados em rea\u00e7\u00f5es qu\u00edmicas?<\/p>\n

1, limita\u00e7\u00e3o da transfer\u00eancia de massa: Os catalisadores em p\u00f3 geralmente t\u00eam uma grande \u00e1rea de superf\u00edcie e estrutura de poros, projetada para aumentar a atividade das rea\u00e7\u00f5es catal\u00edticas. No entanto, as mol\u00e9culas reagentes podem encontrar limita\u00e7\u00f5es de transfer\u00eancia de massa durante sua entrada nesses poros, resultando em uma taxa de rea\u00e7\u00e3o limitada. Em contrapartida, o uso de catalisadores com outras morfologias (por exemplo, granular ou porosa) pode aliviar as limita\u00e7\u00f5es de transfer\u00eancia de massa e, assim, aumentar a taxa de rea\u00e7\u00e3o.<\/p>\n

2, Problema de queda de press\u00e3o: os catalisadores em p\u00f3 normalmente formam um leito bem compactado no reator. \u00c0 medida que a rea\u00e7\u00e3o prossegue, os reagentes passam pela camada de catalisador, o que pode resultar em uma grande queda de press\u00e3o. Essa queda de press\u00e3o aumenta o custo operacional do sistema e pode exigir a manuten\u00e7\u00e3o e a substitui\u00e7\u00e3o do catalisador ap\u00f3s um longo per\u00edodo de opera\u00e7\u00e3o.<\/p>\n

3, Dispers\u00e3o: Os catalisadores em p\u00f3 s\u00e3o pouco dispersos no reator devido \u00e0 sua forma granular. A m\u00e1 dispers\u00e3o pode levar \u00e0 subutiliza\u00e7\u00e3o de algumas das part\u00edculas do catalisador, afetando, assim, a efici\u00eancia e a seletividade do produto da rea\u00e7\u00e3o.<\/p>\n

4, Gerenciamento t\u00e9rmico da rea\u00e7\u00e3o: Algumas rea\u00e7\u00f5es catal\u00edticas s\u00e3o exot\u00e9rmicas, e o uso de catalisadores em p\u00f3 pode levar ao ac\u00famulo de calor no leito do catalisador, dificultando o gerenciamento t\u00e9rmico da rea\u00e7\u00e3o. Isso pode levar \u00e0 forma\u00e7\u00e3o de pontos quentes e a problemas de controle da temperatura da rea\u00e7\u00e3o.<\/p>\n

Entretanto, nem todas as situa\u00e7\u00f5es s\u00e3o inadequadas para o uso de catalisadores em p\u00f3. Em algumas condi\u00e7\u00f5es espec\u00edficas de rea\u00e7\u00e3o, os catalisadores em p\u00f3 ainda podem ser uma op\u00e7\u00e3o adequada. A sele\u00e7\u00e3o da forma apropriada de catalisador depende do tipo espec\u00edfico de rea\u00e7\u00e3o, das condi\u00e7\u00f5es de rea\u00e7\u00e3o e dos requisitos de taxa de rea\u00e7\u00e3o, seletividade e transfer\u00eancia de massa. Na pr\u00e1tica, os engenheiros qu\u00edmicos levar\u00e3o em conta os fatores acima para selecionar a forma de catalisador mais adequada.<\/p>","protected":false},"excerpt":{"rendered":"

Nome qu\u00edmico: 2,5-Furandicarboxylicacid<\/p>\n

N\u00famero CAS: 3238-40-2<\/p>\n

F\u00f3rmula molecular: C6H4O5<\/p>\n

Peso molecular: 156,09<\/p>\n

Estrutura molecular:\"Estrutura<\/p>\n

Apar\u00eancia: P\u00f3 branco<\/p>\n

Densidade: 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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