| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Method of producing sodium carbonate and bicarbonate spherules from brine | US35045373 | 1973-04-12 | US3855397A | 1974-12-17 | HOFFMAN R; FOLLOWS A |
| Free-flowing spherules of sodium bicarbonate are prepared from a sodium carbonate or from salt brine, substantially saturated with ammonia, by carbonating the sodium carbonate solution, or the ammonia-saturated brine with carbon dioxide in the presence of from 200 to 2500 parts per million of a water soluble alkaline phosphate. Spherules of sodium bicarbonate crystallizing from the solutions are separated as a product having a bulk density between about 32 to 48 pounds per cubic foot, and a screen size substantially between 14 and 100 mesh. Sodium carbonate spherules are also readily obtained by calcining the sodium bicarbonate spherules.
|
||||||
| 182 | Production of sodium bicarbonate using baffled cooling tube compartments in a tower | US3551097D | 1968-12-20 | US3551097A | 1970-12-29 | BROOKS RICHARD; TASIAUX PAUL |
| Sodium bicarbonate is made by the ammoniasoda process in a column having a plurality of superposed compartments wherein carbon dioxide is contacted with a magma of sodium bicarbonate supported on a horizontal perforated plate and passing from compartment to compartment through a downcomer off set in relation to the downcomers of adjacent compartments, at least one of the lower compartments in the column having an arranging of spaced cooling tubes extending across the compartment and over which the magma of sodium bicarbonate flows, baffles being arranged to direct rising carbon dioxide first upwardly in a central zone of the cooling arrangement, then downwardly in adjacent zones thereof and then upwardly again in the outer zones of the arrangement to the compartment above. In compartments with cooling tubes the perforations of the plates are arranged in rows co-extensive with the cooling tubes while in the other compartments the perforations are arranged in concentric circles. The downcomers project above the perforated plates, are disposed in a peripheral zone thereof and may be inclined to the vertical. A column preferably has a diameter of between 6 and 9 feet and may have between 14 and 20 compartments of which 4 or 5 contain cooling means. | ||||||
| 183 | Cyclic process for the fabrication of sodium carbonate and of chlorine | US3514381D | 1967-02-20 | US3514381A | 1970-05-26 | SEGUELA PIERRE |
| 184 | Process and apparatus for harvesting crystals | US46291465 | 1965-06-10 | US3389974A | 1968-06-25 | CESARE BARATTINI; PAOLO BORTOLINI; ALBERTO SCARFI |
| 1,099,318. Crystallizing. SOCIETA' EDISON. June 9, 1965 [June 10, 1964], No. 24466/ 65. Heading B1G. [Also in Division F4] Cooling and crystallization of a saturated solution is effected in a vessel by means of water-cooled heat exchange tubing 1 resiliently suspended from a frame 2 which is vibrated by a cam operated by a motor 18. The tubing is in the form of two bundles operating in parallel, each bundle comprising a plurality of tubes, each connected to the next alternately at the top and bottom. The solution is stirred by a propellor 19 between the bundles. | ||||||
| 185 | Process for producing sodium carbonate from sodium bicarbonate obtained by the ammonia-soda process | US46723465 | 1965-06-28 | US3336106A | 1967-08-15 | MEEDER GERARDUS H W |
| 186 | Process for recovering calcium chloride from the ammonium chloride waste liquor of the ammonia soda process | US36147364 | 1964-04-21 | US3329479A | 1967-07-04 | EDMOND HUSTINX |
| 187 | Method of recovering ammonium chloride | US76228058 | 1958-09-22 | US3014782A | 1961-12-26 | HIDEO ARITA; HIROYUKI KUSAKA |
| 188 | Continuous process for producing sodium bicarbonate slurry | US69399357 | 1957-11-01 | US2942942A | 1960-06-28 | HOFF JEAN M |
| 189 | Process for making sodium carbonate and acetylene | US67485257 | 1957-07-29 | US2845329A | 1958-07-29 | NEUBAUER JOSEPH A; THEIS FRANCIS W |
| 190 | Conversion of sodium chloride into sodium carbonate and ammonia chloride | US44556854 | 1954-07-26 | US2843454A | 1958-07-15 | ADRIEN DEVAUX; MARCEL JEAN |
| 191 | Manufacture of soda ash | US24609251 | 1951-09-11 | US2737440A | 1956-03-06 | ROBERTS EDWARD S; SAMUEL STRELZOFF |
| 192 | Production of sodium bicarbonate and ammonium chloride in modified ammonia-soda type process | US30943652 | 1952-09-13 | US2666686A | 1954-01-19 | STANDISH MILLER WARREN; HIRDLER LOUIS C |
| 193 | Cyclic process for production of sodium bicarbonate and ammonium chloride | US24819051 | 1951-09-25 | US2622004A | 1952-12-16 | STANDISH MILLER WARREN; HIRDLER LOUIS C |
| 194 | Production of potassium bicarbonate | US59542332 | 1932-02-26 | US2013977A | 1935-09-10 | HANS WEISS |
| 195 | Process for the manufacture of alkali metal carbonates and hydroxides and recovery of ammonium chloride | US62470132 | 1932-07-26 | US1992318A | 1935-02-26 | MACMULLIN ROBERT B |
| 196 | Production of alkali metal carbamates | US71933734 | 1934-04-06 | US1969516A | 1934-08-07 | BURNS MACMULLIN ROBERT |
| 197 | Process for the production of potassium carbonate | US43926130 | 1930-03-26 | US1794260A | 1931-02-24 | THEODOR THORSSELL; AUGUST KRISTENSSON |
| 198 | Process for the manufacture of sodium carbonate | US27972328 | 1928-05-22 | US1789235A | 1931-01-13 | KIPPER HERMAN B |
| 199 | Process for manufacturing sodium bicarbonate and ammonium chloride | US162825 | 1925-01-10 | US1710636A | 1929-04-23 | WILHELM GLUUD; BERNHARD LOPMANN |
| 200 | Ammonia soda process | US55780122 | 1922-05-01 | US1570299A | 1926-01-19 | GALT HUGH A |
QQ群二维码
意见反馈
意见反馈