초록 ▼

A method of making surfactants from lignin is disclosed by reducing lignin in the presence of a metal oxide or iron based catalyst in an organic hydrogen donor solvent to produce lignin phenol and subjecting the lignin phenol to one or a combination of several reactions such as alkoxylation, alkylat

A method of making surfactants from lignin is disclosed by reducing lignin in the presence of a metal oxide or iron based catalyst in an organic hydrogen donor solvent to produce lignin phenol and subjecting the lignin phenol to one or a combination of several reactions such as alkoxylation, alkylation, sulfonation, sulfation, alkoxysulfation, and sulfomethylation. The lignin surfactants so produced can be employed in a surfactant system to recover oil from underground formations.

대표청구항 ▼

[ What is claimed is:] [1.] A method of producing lignin phenol from lignin, the method comprising:placing lignin in contact with a hydrogen donor organic solvent;converting the lignin into low molecular weight-lignin phenol by reducing the lignin in the presence of a reducing agent and a catalyst a

[ What is claimed is:] [1.] A method of producing lignin phenol from lignin, the method comprising:placing lignin in contact with a hydrogen donor organic solvent;converting the lignin into low molecular weight-lignin phenol by reducing the lignin in the presence of a reducing agent and a catalyst at a temperature of at least about 200.degree. C. and a pressure of at least about 100 psig;wherein said catalyst contains from about 1.0% to about 15% by weight molybdenum oxide and a second component selected from the group consisting of nickel oxide or cobalt oxide, wherein the weight ratio of molybdenum oxide to said second component ranges from about 3:1 to about 5:1, and wherein the molybdenum oxide and second component are supported on a support of alumina; andrecovering the lignin phenols from the reaction mixture.