| 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 | 一种硝酸钾的制备方法 | CN201610598895.2 | 2016-07-22 | CN106276985A | 2017-01-04 | 孙进贺; 贾永忠; 张全有; 景燕; 谢绍雷; 马贵香 |
| 本发明公开了一种硝酸钾的制备方法，包括步骤：A、将硝酸盐与碱性共熔助剂混合均匀并加热至不超过300℃，进行熔融，获得第一混合物；其中，硝酸盐与碱性共熔助剂的质量之比不小于3:1；B、将富钾岩石粉碎并置于第一混合物中，继续加热至不超过600℃，并保温6h～24h，获得第二混合物；其中，富钾岩石是指以K2O计时其质量百分数不低于8％的硅酸盐矿物；C、将第二混合物冷却至100℃～120℃后通入水，获得第三混合物，使第三混合物在50℃～90℃下保温6h～36h，固液分离，获得第一滤渣和第一滤液；D、第一滤液经浓缩、冷却，析出硝酸钾。根据本发明的硝酸钾的制备方法，其以富钾岩石为原料，通过两次浸取即可获得硝酸钾水溶液，工艺简单、能耗低、且绿色环保。 | ||||||
| 2 | 一种硝酸钾的制备方法 | CN201610584010.3 | 2016-07-22 | CN106276984A | 2017-01-04 | 孙进贺; 贾永忠; 张全有; 景燕; 谢绍雷; 姚颖 |
| 本发明公开了一种硝酸钾的制备方法，包括步骤：A、将硝酸盐加热至不超过300℃，进行熔融，获得第一熔融物；B、将富钾岩石粉碎并置于所述第一熔融物中，继续加热至不超过600℃，并保温12h～36h，获得第二熔融物；其中，所述富钾岩石是指以K2O计时K2O的质量百分数不低于8％的硅酸盐矿物；C、将所述第二熔融物冷却至100℃～120℃后向其中通入水，获得混合体系，使所述混合体系在50℃～90℃下保温6h～48h，固液分离，获得第一滤渣和第一滤液；D、所述第一滤液经浓缩、冷却，析出硝酸钾。根据本发明的硝酸钾的制备方法，其以富钾岩石为原料，通过两次浸取即可获得硝酸钾水溶液，工艺简单、能耗低、且绿色环保。 | ||||||
| 3 | Method and process for the leaching of caliche and for the recovery of nitrate therefrom | US51333521 | 1921-11-07 | US1517046A | 1924-11-25 | LALOR BURDICK CHARLES |
| 4 | Purification or extraction of soluble substances | US56804622 | 1922-06-13 | US1439061A | 1922-12-19 | WALTER BROADBRIDGE; EDWIN EDSER; GEORGE SELLERS WILLIAM |
| 5 | Process of treating alkali-metal-salt mixtures | US28529919 | 1919-03-26 | US1363092A | 1920-12-21 | CULLEN JOHN A |
| 6 | Process of extracting potassium from minerals. | US20544717 | 1917-12-04 | US1296458A | 1919-03-04 | BLUMENBERG HENRY JR |
| 7 | Method of purifying alkaline cyanids. | US1901068409 | 1901-07-15 | US684914A | 1901-10-22 | CRAIG GEORGE |
| 8 | Control of percolation leaching of ores exhibiting a significant heat of solution | US34712364 | 1964-02-25 | US3334973A | 1967-08-08 | GOREN MAYER B; MEYER ADOLPH E |
| 9 | Treatment of nitrate-bearing material | US70440933 | 1933-12-29 | US2040548A | 1936-05-12 | STANLEY FREED EDGAR |
| 10 | Treatment of crude mineral salts | US24134727 | 1927-12-20 | US1813575A | 1931-07-07 | ERNST JANECKE; HERMANN KLIPPEL; EMIL HEGELMANN |
| 11 | Production of sodium nitrate | US22139427 | 1927-09-22 | US1696197A | 1928-12-25 | ROBERT GRIESSBACH; KURT ROHRE |
| 12 | Process of leaching and obtaining nitrates and chlorids | US15765117 | 1917-03-27 | US1357973A | 1920-11-09 | GIESECKE WILLIAM E |
| 13 | Harry p | US1194465D | US1194465A | 1916-08-15 | ||
| 14 | A PROCESS FOR PRODUCING HIGH-PURITY POTASSIUM SALTS | EP97926033.8 | 1997-06-12 | EP0904251B1 | 2001-09-19 | VORAGE, Marcus; EICHNER, Per |
| The present invention relates to a new selective process for producing high-purity potassium nitrate or potassium phosphate. The process uses a liquid agricultural or fermentation by-product, such as molasses, vinasse or potato thick juice as its potassium source and comprises the following unit operations: clarification, ion exchange, neutralization, concentration and crystallization. Importantly, the present invention also concerns a process for producing an ingredient for animal feed, said ingredient having a reduced potassium content. | ||||||
| 15 | A PROCESS FOR PRODUCING HIGH-PURITY POTASSIUM SALTS | EP97926033.0 | 1997-06-12 | EP0904251A1 | 1999-03-31 | VORAGE, Marcus; EICHNER, Per |
| The present invention relates to a new selective process for producing high-purity potassium nitrate or potassium phosphate. The process uses a liquid agricultural or fermentation by-product, such as molasses, vinasse or potato thick juice as its potassium source and comprises the following unit operations: clarification, ion exchange, neutralization, concentration and crystallization. Importantly, the present invention also concerns a process for producing an ingredient for animal feed, said ingredient having a reduced potassium content. | ||||||
| 16 | Process for producing high-purity potassium salts | US09194903 | 1998-12-04 | US06274105B1 | 2001-08-14 | Marcus Vorage; Per Eichner |
| The present invention relates to a new selective process for producing high-purity potassium nitrate or potassium phosphate. The process uses a liquid agricultural or fermentation by-product, such as molasses, vinasse or potato thick juice as its potassium source and comprises the following unit operations: clarification, ion exchange, neutralization, concentration and crystallization. Importantly, the present invention also concerns a process for producing an ingredient for animal feed, said ingredient having a reduced potassium content. | ||||||
| 17 | Process for the production of clear leach liquors | US7123625 | 1925-11-24 | US1731450A | 1929-10-15 | ALLEN ARTHUR W |
| 18 | Purification or extraction of soluble substances | US56804722 | 1922-06-13 | US1562863A | 1925-11-24 | WALTER BROADBRIDGE; EDWIN EDSER; GEORGE SELLERS WILLIAM |
| 19 | Manufacture of sodium nitrate | US53043722 | 1922-01-19 | US1516550A | 1924-11-25 | CAPPELEN SMITH ELIAS ANTHON |
| 20 | Recovery of nitrate from caliche | US50832421 | 1921-10-17 | US1513014A | 1924-10-28 | CAPPELEN SMITH ELIAS ANTHON |
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