Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Patent
1984-02-03
1986-09-02
Hazel, Blondel
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
435822, 426 53, 162 72, 162 77, 162 79, A23K 112, C12P 704, C12R 101, D21C 320
Patent
active
046096248
ABSTRACT:
A process for producing isopropyl alcohol and useful by-products from cellulosic substrates without utilizing toxic acids. This process comprises the steps of: (1) digesting cellulosic substrates in a heated solution of sodium carbonate; (2) digesting the cellulosic product of step (1) in a heated solution containing isopropyl alcohol or aluminum isopropylate together with sodium acetate and optionally, acetic acid, to produce a biomass and a black liquid of saturated acyclic hydrocarbons; (3) mixing the biomass of step (2) with amylolytic enzymes or with xylophagous bacteria to initiate fermentation of the biomass; (4) adding the black liquid of step (2) together with basic aluminate acetate and a mixture of formaldehyde and phenol or sulfonated phenol to the mixture of step (3) and heating the resulting mixture to a temperature ranging between 120.degree. to 160.degree. C. under a pressure ranging between 1.5 and 45 kg/cm.sup.2 until isopropyl alcohol is produced.
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Hazel Blondel
Les Services de Consultation D.B. Plus Limitee
Weimar Elizabeth C.
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