发明名称 |
Process for producing isopropyl alcohol from cellulosic substrates |
摘要 |
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 DEG to 160 DEG C. under a pressure ranging between 1.5 and 45 kg/cm2 until isopropyl alcohol is produced.
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申请公布号 |
US4609624(A) |
申请公布日期 |
1986.09.02 |
申请号 |
US19840576738 |
申请日期 |
1984.02.03 |
申请人 |
LES SERVICES DE CONSULTATION D.B. PLUS LIMITEE |
发明人 |
ROTHLISBERGER, HENRI C. |
分类号 |
A23K1/12;C12N1/22;C12P7/04;(IPC1-7):A23K1/12;C12R1/01;D21C3/20 |
主分类号 |
A23K1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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