FIELD: industrial organic synthesis and catalysts.
SUBSTANCE: invention provides catalyst for synthesis of thiophene from furan and hydrogen sulfide, which catalyst contains 3.1-4.2 wt %: boron oxide supported by alumina. Catalyst is prepared via mixing boron acid solution with aluminum hydroxide followed by extrusion and heat treatment, said aluminum hydroxide being aluminum hydroxide with pseudoboehmite structure or mixture thereof with aluminum hydroxide prepared via thermochemical activation process. Thiophene production process is accomplished via furan/hydrogen sulfide reaction in presence of above-described catalyst at 300-350 sulfate, hydrogen sulfide-to-furan molar ratio (6-11):1, and furan feed rate 3.7 to 11.1 mole/h per 1 g catalyst.
EFFECT: increased thiophene formation selectivity to 98-100%.
4 cl, 1 tbl, 7 ex
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