{'fraction_non_alphanumeric': 0.02280701754385965, 'fraction_numerical': 0.015789473684210527, 'mean_word_length': 5.206521739130435, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Equilibrium constants for methyl tert-butyl ether liquid-phase synthesis

Equilibrium constants for the liquid-phase synthesis of methyl tert-butyl ether (MTBE) were determined experimentally in the temperature range 40-80 o C. Equilibrium was established in the methanol addition to isobutylene for obtaining MTBE over the sulfonic acid resin Lewatit SPC 118 as the catalyst in a batch reactor maintained at 1.6 MPa. The experimental equilibrium constant is given as a function of temperature, and enthalpy, free energy, and entropy changes have been determined as well