| 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 | 粒状硝酸钠硬度改进的方法 | CN201410820717.0 | 2014-12-13 | CN104591230A | 2015-05-06 | 茚晓宝; 荣大林; 顾建; 王庆芳; 张建民; 王新梅; 宋玉东 |
| 粒状硝酸钠硬度改进的方法，在蒸发结晶后的湿料硝酸钠输送至融化罐的过程中，通过料斗配合螺旋输送机进行废盐添加，所述废盐为重量百分比氯化钠60-90％或硫酸钠10％-40％，通过添加0.01-2.5％含有氯化钠和硫酸钠的废盐后，硝酸钠产品颗粒硬度可达到2-4kgf，粒径在2-4mm的颗粒含量高达96％以上。通过添加富含氯化钠的产品方式，增加硝酸钠颗粒硬度，该造粒方法还可得到较现有颗粒含水量更低、圆度更高和颗粒更均匀的硝酸钠颗粒，并实现连续生产，生产工艺能耗小，效率高，成本低，特别适于应用在化工高塔造粒领域。 | ||||||
| 2 | 一种生产熔盐级硝酸钾的方法 | CN201710464258.0 | 2017-06-19 | CN107128953A | 2017-09-05 | 张海军; 石建民; 宋军; 蔡守军; 张生富; 马银善; 宋先明; 付大林; 马洪才; 王淑娜 |
| 本发明公开了一种生产熔盐级硝酸钾的方法，包括如下步骤：步骤S1中和工序：氢氧化钾溶液与硝酸溶液混合发生中和反应生成硝酸钾，得到第一硝酸钾原料液，氢氧化钾和硝酸的物质的量之比为1:1.01～1.02；步骤S2蒸发工序：对第一硝酸钾原料液进行蒸发浓缩至硝酸钾的质量百分比浓度为65～70％，得到第二硝酸钾原料液；步骤S3喷浆造粒工序：对第二硝酸钾原料液进行喷浆造粒，制得终产物熔盐级硝酸钾。本发明所述的方法能直接生产出高纯度熔盐级别的硝酸钾，具有非常好的工业价值。且本发明所述的工艺方法操作过程简单高效、易实现自动化生产，安全性强，适用于高纯级硝酸钾的连续稳定快速生产。 | ||||||
| 3 | 一种硝酸钠球形细颗粒的造粒方法 | CN200910112134.1 | 2009-06-26 | CN101624195B | 2011-06-29 | 戴良玉 |
| 本发明提供了一种硝酸钠球形细颗粒的造粒方法，该造粒方法包括以下步骤：1)将工业硝酸钠在熔盐炉内熔融后，导入一高位保温缓冲槽，而后送至位于一造粒塔顶部的雾化装置，将其雾化成粒径主要分布在30μm～0.5mm之间的雾滴；2)将经过冷冻干燥的高压空气从所述造粒塔的上部进气管位置沿切线方向进入塔内，使步骤1中获得的硝酸钠雾滴在造粒塔内延塔壁作螺旋下降，得到硝酸钠颗粒；3)收集位于塔底的冷却硝酸钠颗粒，包装获得产品。该造粒方法可得到较现有颗粒含水量更低、圆度更高和颗粒更小的硝酸钠颗粒，并实现连续生产。 | ||||||
| 4 | 一种兑卤法生产米粒状结晶硝酸钾的工艺 | CN201611058700.1 | 2016-11-28 | CN106629784A | 2017-05-10 | 余一茅; 余荣华; 李炳生 |
| 一种兑卤法生产米粒状结晶硝酸钾的工艺，通过以硝酸、氧化镁、氯化钾为原料进行反应，冷却结晶得到硝酸钾粗品，再通过兑卤法，即将硝酸钾的高温溶液和低温溶液按一定比例混合，同时加入硝酸钾晶种，控制混合液温度和搅拌速度，结晶得到米粒状的硝酸钾晶体的生产工艺。该生产工艺利用硝酸和氧化镁反应产生的热量对反应溶液进行加热，反应速度快，又节约能源；采用兑卤加晶种的方式进行冷却结晶，结晶速度快，效率高，所得硝酸钾产品是一种椭圆形的米粒状晶体，纯度高，杂质少，晶体粒径较大且粒度均匀，流动性好，不易结块，使用方便，用途广泛。 | ||||||
| 5 | 一种硝酸钠球形细颗粒的造粒方法 | CN200910112134.1 | 2009-06-26 | CN101624195A | 2010-01-13 | 戴良玉 |
| 本发明提供了一种硝酸钠球形细颗粒的造粒方法，该造粒方法包括以下步骤：1)将工业硝酸钠在熔盐炉内熔融后，导入一高位保温缓冲槽，而后送至位于一造粒塔顶部的雾化装置，将其雾化成粒径主要分布在30μm～0.5mm之间的雾滴；2)将经过冷冻干燥的高压空气从所述造粒塔的上部进气管位置沿切线方向进入塔内，使步骤1中获得的硝酸钠雾滴在造粒塔内延塔壁作螺旋下降，得到硝酸钠颗粒；3)收集位于塔底的冷却硝酸钠颗粒，包装获得产品。该造粒方法可得到较现有颗粒含水量更低、圆度更高和颗粒更小的硝酸钠颗粒，并实现连续生产。 | ||||||
| 6 | Process for the preparation of potassium nitrate | EP87201343.8 | 1987-07-14 | EP0254361A1 | 1988-01-27 | Bianchi, Angelo; Calicchio, Gaetano; Spaziante, Placido |
A process is disclosed for the preparation of potassium nitrate by means of the reaction of nitric acid with potassium carbonate, wherein potassium carbonate is obtained by means of an electrochemical process. |
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| 7 | METHOD FOR PELLETING SPHERICAL FINE PARTICLE OF SODIUM NITRATE | US13379335 | 2010-06-17 | US20120098151A1 | 2012-04-26 | Liangyu Dai; Wangfa Wu |
| Provided is a method for pelleting spherical fine particle of sodium nitrate, which comprises the following steps: 1) melting industrial sodium nitrate in a salt melting furnace, introducing into a high-level insulation buffer tank, placing in an atomizer located on top of the pelleting tower, atomizing to obtain fog droplets with size of 30 μm-0.5 mm; 2) introducing freeze-dried high-pressure air into the pelleting tower in a tangent direction from the upper inlet pipe of the tower, so that the sodium nitrate fog droplets obtained in step 1) fall spirally along the wall in the pelleting tower, to obtain sodium nitrate particle; 3) collecting the cooled sodium nitrate particle at the bottom of the tower, and packaging. Sodium nitrate particle with lower water content, higher roundness, and smaller size can be obtained, and continuous production can be realized by the method. | ||||||
| 8 | Process for the preparation of potassium nitrate | US70419 | 1987-07-07 | US4776930A | 1988-10-11 | Angelo Bianchi; Gaetano Calicchio; Placido Spaziante |
| A process is disclosed for the preparation of potassium nitrate by means of the reaction of nitric acid with potassium carbonate, wherein potassium carbonate is obtained by means of an electrochemical process. | ||||||
| 9 | Granulation of potash salts | US5047 | 1979-01-22 | US4385920A | 1983-05-31 | William B. Dancy; Kenneth L. Nichols |
| A process for the granulation of potash salts to produce granules in high yield by the steps of mixing the potash salt with an inorganic phosphate binder and water, granulating the mixture and drying it. | ||||||
| 10 | Process for the preparation of watersoluble metal sulfates, phosphates or nitrates | US64963457 | 1957-04-01 | US2902341A | 1959-09-01 | ABRAHAM BANIEL; RUTH BLUMBERG |
| 11 | Nitric acid-based salt granule and aggregate thereof | US10014473 | 2001-12-14 | US06699584B2 | 2004-03-02 | Masatoshi Taniguchi; Hideo Amo; Motoaki Murakami |
| A granule of a compound comprising a nitrate or nitrite, wherein a part of the body of the granule has a protrusion, and an aggregate of the granules. | ||||||
| 12 | Process for crystallization of mineral salts | US688913 | 1996-07-31 | US5716419A | 1998-02-10 | David A. Larsen |
| Mineral salts, e.g., potassium chloride, are crystallized from aqueous solutions thereof in the presence of a crystal growth promoting amount of lecithin or lecithin containing compositions. Mineral salts include alkali metal and alkaline-earth metal chloride, sulfate, carbonate, phosphate and nitrate salts. The process is described as providing increased amounts of large crystals and a narrower and more uniform crystal size distribution. | ||||||
| 13 | Crystal habit modification of inorganic salts using polymeric sulfonates or sulfates | US3770390D | 1971-02-26 | US3770390A | 1973-11-06 | TEOT A |
| Disclosed herein is an improved method for crystallizing watersoluble inorganic salts. The improvement comprises adding to the crystallizing system a small amount of a monovalent salt of a polymeric sulphonate or sulfate characterized by the formula:
WHEREIN R is hydrogen or methyl, m is an integer from 3 to 3,000, n is 0 or 1, and Y is a connecting group which is oxo, phenyl, phenoxy, carboxy alkyl or similar organic radical. The X portion of the sulphonate or sulfate group is a monovalent cation such as hydrogen, lithium, sodium, potassium and ammonium. The resulting crystals are larger and more regularly shaped than crystals produced by prior art methods. |
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| 14 | 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. | ||||||
| 15 | Method of producing sodium nitrate | US19363750 | 1950-11-02 | US2643180A | 1953-06-23 | STANDISH MILLER WARREN |
| 16 | Method for pelleting spherical fine particle of sodium nitrate | US13379335 | 2010-06-17 | US08465680B2 | 2013-06-18 | Liangyu Dai; Wangfa Wu |
| Provided is a method for pelleting spherical fine particle of sodium nitrate, which comprises the following steps: 1) melting industrial sodium nitrate in a salt melting furnace, introducing into a high-level insulation buffer tank, placing in an atomizer located on top of the pelleting tower, atomizing to obtain fog droplets with size of 30 μm-0.5 mm; 2) introducing freeze-dried high-pressure air into the pelleting tower in a tangent direction from the upper inlet pipe of the tower, so that the sodium nitrate fog droplets obtained in step 1) fall spirally along the wall in the pelleting tower, to obtain sodium nitrate particle; 3) collecting the cooled sodium nitrate particle at the bottom of the tower, and packaging. Sodium nitrate particle with lower water content, higher roundness, and smaller size can be obtained, and continuous production can be realized by the method. | ||||||
| 17 | Nitric acid-based salt granule and aggregate thereof | US10014473 | 2001-12-14 | US20030113537A1 | 2003-06-19 | Masatoshi Taniguchi; Hideo Amo; Motoaki Murakami |
| A granule of a compound comprising a nitrate or nitrite, wherein a part of the body of the granule has a protrusion, and an aggregate of the granules. | ||||||
| 18 | Sodium nitrate | US62566232 | 1932-07-29 | US2021927A | 1935-11-26 | WALTER STRATHMEYER |
| 19 | Treatment of crude mineral salts | US24134727 | 1927-12-20 | US1813575A | 1931-07-07 | ERNST JANECKE; HERMANN KLIPPEL; EMIL HEGELMANN |
| 20 | アルカリ金属塩含有成型体およびそれを用いた酸性水溶液の再生処理方法 | JP2016175974 | 2016-09-08 | JP2017186221A | 2017-10-12 | 西村 恒佑; 高田 慎一; 止原 正博 |
| 【課題】フッ化水素酸およびケイフッ化水素酸を含有する酸性水溶液からケイフッ化水素酸を分離して酸性水溶液を再生処理する操作を、作業環境を低下させることなく効率的に酸性水溶液を再生処理することが出来る材料および方法を提供する。 【解決手段】アルカリ金属塩A、ならびに、アルカリ金属塩Bおよびアルカリ金属塩Cの少なくとも一種を所定の割合で含むアルカリ金属塩含有成型体; 前記アルカリ金属塩Aは、フッ化ナトリウム、重フッ化ナトリウム、フッ化カリウムおよび重フッ化カリウムからなる群から選択される少なくとも一種: 前記アルカリ金属塩Bは、20℃の水への溶解度が10g/100ml以上であるナトリウム塩および20℃の水への溶解度が10g/100ml以上であるカリウム塩からなる群から選択される少なくとも一種: 前記アルカリ金属塩Cは、炭酸ナトリウム、炭酸水素ナトリウム、炭酸カリウムおよび炭酸水素カリウムからなる群から選択される少なくとも一種。 【選択図】なし |
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