Способ приготовления катализатора для синтеза сложных эфиров карбоновых кислот
Patents
Language: |
Русский |
Type: |
Invention |
Number |
SU 676317 A1 |
Request number: |
2551873/23-04 |
Request date: |
Dec 6, 1977 |
patent.field.start_date: |
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Registration date: |
Jul 30, 1979 |
patent.field.request_publication_date: |
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Authors |
Кожевников И.В.
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Affiliations |
1 |
Boreskov Institute of Catalysis SB RAS
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The title catalyst, based on phosphomolybdic heteropolyacid, is prepd. by reacting MoO3 with H3PO4 in H2O and then filtering. The process is simplified by carrying out the reaction in 0.8-1 parts by wt. H2O per 1 part by wt. MoO3 in the presence of 0.2-0.4 parts by wt. NaOH per 1 part by wt. MoO3 and then acidifying with H2SO4.