专利名称：Method of oxidation using nitric acid 发明人：Donald E. Kiely,Kirk R. Hash, Sr.
申请号：US11890760
申请日：20070806
公开号：US07692041B2
公开日：
reaction diffusion
20100406
专利内容由知识产权出版社提供
摘要：A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device. The method eliminates issues of thermal control of the oxidation, release of nitrogen into the atmosphere, and post-reaction difficulties in the removal of nitric acid and inorganic nitrates.
申请人：Donald E. Kiely,Kirk R. Hash, Sr.
地址：Missoula MT US,Drummond MT US
国籍：US,US
代理人：Jean Kyle
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