| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | Ammonia-soda process for the production of sodium hydroxide, naoh, with simultaneousproduction of ammonia | US43370030 | 1930-03-06 | US1877489A | 1932-09-13 | FRIEDRICH BARTLING |
| 2 | Caustic regeneration process | US78685459 | 1959-01-14 | US3023084A | 1962-02-27 | THOMAS JR ARTHUR M |
| 3 | Method of preparing potassium carbonate or potassium hydroxide | US56852031 | 1931-10-12 | US2002684A | 1935-05-28 | HERMANN FRICKE; JENNY BARTLING |
| 4 | Manufacture of alkali carbonate or alkali hydroxide | US61961432 | 1932-06-27 | US1979151A | 1934-10-30 | HERMANN FRICKE; AUGUST MEIER |
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