p-Xylene can be used in the production of polyester fibers and resins, coatings, dyes, and pesticides; this dataset includes the main raw materials, energy, and atmospheric emissions from the production process. Infrastructure such as equipment used in production and building construction is not included within the dataset boundary; the data inventory comes from literature; the process flow for producing p-xylene using molten salt hydrate hydrolysis technology includes raw material pre-treatment, melt hydrolysis, liquid membrane crystallization, purification, etc.