精萘是一種重要的化工原料，其獲取途徑主要源于工業(yè)生產(chǎn)過(guò)程中的提取與加工，需通過(guò)一系列工藝從相關(guān)原料中分離提純得到。

　　Refined naphthalene is an important chemical raw material, which is mainly obtained through extraction and processing in industrial production processes. It needs to be separated and purified from related raw materials through a series of processes.

　　從原料來(lái)源看，精萘的主要獲取渠道與煤焦油加工密切相關(guān)。煤焦油是煤炭干餾過(guò)程中產(chǎn)生的一種黑色粘稠液體，其中含有多種有機(jī)化合物，萘便是其中含量較高的成分之一。在煤焦油的分餾過(guò)程中，通過(guò)控制溫度，可將萘含量較高的餾分分離出來(lái)，這一餾分經(jīng)洗滌、蒸餾等進(jìn)一步提純工藝，去除其中的雜質(zhì)，最終得到精萘。

　　From the perspective of raw material sources, the main channels for obtaining refined naphthalene are closely related to coal tar processing. Coal tar is a black viscous liquid produced during the coal dry distillation process, which contains various organic compounds, among which naphthalene is one of the components with a higher content. In the fractionation process of coal tar, by controlling the temperature, the fraction with high naphthalene content can be separated. This fraction is further purified through washing, distillation, and other processes to remove impurities and ultimately obtain refined naphthalene.

　　除了煤焦油，某些石油加工過(guò)程中也可能產(chǎn)生含萘的餾分，不過(guò)相較于煤焦油，石油基原料中萘的含量通常較低，因此并非精萘獲取的主要途徑。此外，在一些化工產(chǎn)品的生產(chǎn)副產(chǎn)物中，也可能含有少量萘，通過(guò)特定的回收工藝可將其提取并提純?yōu)榫?，?shí)現(xiàn)資源的二次利用。

　　In addition to coal tar, some petroleum processing processes may also produce naphthalene containing fractions, but compared to coal tar, the naphthalene content in petroleum based raw materials is usually lower, so it is not the main way to obtain refined naphthalene. In addition, some by-products of chemical production may also contain small amounts of naphthalene, which can be extracted and purified into refined naphthalene through specific recycling processes, achieving secondary utilization of resources.

　　精萘的獲取過(guò)程需經(jīng)過(guò)嚴(yán)格的提純處理，因?yàn)榇州林泻辛?、酚等雜質(zhì)，這些雜質(zhì)會(huì)影響精萘的純度和使用性能。提純工藝包括酸洗、堿洗、蒸餾等步驟，通過(guò)逐步去除雜質(zhì)，使萘的純度達(dá)到相關(guān)標(biāo)準(zhǔn)，滿足不同行業(yè)的使用需求。

　　The process of obtaining refined naphthalene requires strict purification treatment, as crude naphthalene contains impurities such as sulfur and phenol, which can affect the purity and performance of refined naphthalene. The purification process includes steps such as acid washing, alkali washing, and distillation. By gradually removing impurities, the purity of naphthalene reaches relevant standards, meeting the usage needs of different industries.

　　需要注意的是，精萘的獲取屬于工業(yè)生產(chǎn)范疇，其生產(chǎn)、儲(chǔ)存和運(yùn)輸都需遵循相關(guān)安全規(guī)范，以確保操作過(guò)程的安全與環(huán)保。

　　It should be noted that the acquisition of refined naphthalene belongs to the scope of industrial production, and its production, storage, and transportation must comply with relevant safety regulations to ensure the safety and environmental protection of the operation process.

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