The maleic anhydride method is a process used to synthesize 4-butanediol. In this process, butanediol is first reacted with oxygen to obtain butanal, and then butanal is hydrogenated to obtain 4-butanediol in the presence of an alkali catalyst.

這個新工藝的一大特點是采用了更加和的催化劑，以提高反應的選擇性和產率。同時，利用丁醛和氫氣作為原料，減少了對昂貴和有限資源的需求。此外，新工藝還采用了優化的反應條件和操作流程，以降低能耗和廢物排放。

A major feature of this new process is the use of more environmentally friendly and efficient catalysts to improve the selectivity and yield of the reaction. At the same time, the use of butyraldehyde and hydrogen as raw materials reduces the demand for expensive and limited resources. In addition, the new process also adopts optimized reaction conditions and operating procedures to reduce energy consumption and waste emissions.

4-丁二醇是一種重要的化工原料，具有廣泛的應用。它可以用于合成丁烯二酸酯、聚酯樹脂和涂料等。此外，4-丁二醇還可以用作溶劑、防凍劑、濕潤劑等。

4-butanediol is an important chemical raw material with wide applications. It can be used to synthesize succinic acid esters, polyester resins, and coatings. In addition, 4-butanediol can also be used as a solvent, antifreeze, wetting agent, etc.

這個新工藝的應用有望提高4-丁二醇的效率和產品質量，同時減少對環境的影響，具有良好的經濟和社會效益。

The application of this new process is expected to improve the production efficiency and product quality of 4-butanediol, while reducing its impact on the environment, with good economic and social benefits.