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公开(公告)号:US3981975A
公开(公告)日:1976-09-21
申请号:US549198
申请日:1975-02-12
申请人: Clifford L. Coon
发明人: Clifford L. Coon
CPC分类号: C01B21/44
摘要: A method for preparing anhydrous nitric acid comprising extracting an aqueous mixture of nitric acid and sulfuric acid with methylene chloride to yield a solution of anhydrous nitric acid in methylene chloride. The anhydrous nitric acid can be isolated from the methylene chloride by distillation or crystallization. Alternatively, the anhydrous solution of nitric acid in methylene chloride may be used directly. The methylene chloride extract of the nitric acid-sulfuric acid mixture is a useful nitrating agent.
摘要翻译: 一种制备无水硝酸的方法,包括用二氯甲烷萃取硝酸和硫酸的含水混合物,得到无水硝酸的二氯甲烷溶液。 无水硝酸可以通过蒸馏或结晶从二氯甲烷中分离出来。 或者,可以直接使用硝酸在二氯甲烷中的无水溶液。 硝酸 - 硫酸混合物的二氯甲烷提取物是有用的硝化剂。
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公开(公告)号:US3803295A
公开(公告)日:1974-04-09
申请号:US31745572
申请日:1972-12-21
摘要: A METHOD FOR REMOVING SMALL AMOUNTS OF RADIOACTIVE IODINE FROM NITRIC ACID SOLUTION BY ISOTOPICALLY DILUTING THE IODINE, SPARGING THE SOLUTION WITH OZONE, AND DISTILLING THE IODINE FROM SOLUTION.
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公开(公告)号:US3106515A
公开(公告)日:1963-10-08
申请号:US56272956
申请日:1956-02-01
申请人: EASTMAN KODAK CO
发明人: WILLIAMS ROBERT A
IPC分类号: C01B21/44
CPC分类号: C01B21/44 , Y10S159/15 , Y10S159/19
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公开(公告)号:US2716631A
公开(公告)日:1955-08-30
申请号:US25476851
申请日:1951-11-03
发明人: BECHTEL ROBERT J
IPC分类号: C01B21/44
CPC分类号: C01B21/44
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公开(公告)号:US1930881A
公开(公告)日:1933-10-17
申请号:US53666831
申请日:1931-05-11
申请人: LONZA AG , LUESCHER EMIL DR
摘要: In the production of nitric acid by the reaction of oxides of nitrogen with oxygen under pressure and at a raised temperature in the presence of dilute nitric acid, the oxygen is forced into the reaction liquid through a finely porous sieve-plate. The plate may be of coherent granular structure, a suitable ceramic plate or a finely perforated metal plate.
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公开(公告)号:US1395577A
公开(公告)日:1921-11-01
申请号:US36081820
申请日:1920-02-24
发明人: OLAF JENSEN
IPC分类号: C01B21/44
CPC分类号: C01B21/44
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公开(公告)号:US598539A
公开(公告)日:1898-02-08
申请号:US598539D
IPC分类号: C01B7/03 , C01B21/084 , C01B21/44
CPC分类号: C01B21/44 , C01B7/03 , C01B21/0846
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