CN110898811A - 一种氮气吸附硅胶的制备方法 - Google Patents
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000000741 silica gel Substances 0.000 title claims abstract description 61
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 61
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 58
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000002245 particle Substances 0.000 claims description 16
- 239000000017 hydrogel Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 239000004005 microsphere Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000003607 modifier Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052682 stishovite Inorganic materials 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011882 ultra-fine particle Substances 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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Abstract
本发明提供一种氮气吸附硅胶的制备方法，通过改变硅胶的形态和对硅胶表面做化学修饰，改变硅胶对氮气的吸附量。其解决了现有吸附硅胶对氮气的吸附容量较弱的技术问题。本发明可广泛应用于氮气生产过程中。
Description
技术领域
本发明涉及一种吸附硅胶的生产方法，特别是涉及一种氮气吸附硅胶的制备方法。
背景技术
随着氮气在化工合成、化肥制作、汽车轮胎充气、食品和工业保护等多个领域的广泛应用，氮气的分离和回收引起了广泛的关注，用硅胶吸附是一种比较好的方法。
由于氮气是一种无色气体，化学性质不活泼，常温下很难与其他物质发生反应，现有是吸附硅胶对氮气的吸附容量较弱。
发明内容
本发明针对现有吸附硅胶对氮气达到吸附容量较弱的技术问题，提供一种能够高效吸附氮气，提高氮气吸附效率的氮气变压吸附硅胶的制备方法。
为此，本发明的技术方案是，一种氮气吸附硅胶的制备方法，通过改变硅胶的形态和对硅胶表面做化学修饰，改变硅胶对氮气的吸附量，包括以下步骤：
第一步：生产微球形变压吸附硅胶；
第二步：对微球形变压吸附硅胶表面做化学修饰，具体方法为：
采用接枝法，将r—氨丙基三乙氧基硅烷作为改性剂，负载到微球形变压吸附硅胶SiO2载体上，制备出改性微球形变压吸附硅胶。
优选的，微球形变压吸附硅胶的生产方法为，将液态泡花碱和浓硫酸，配成一定浓度的稀溶液进行强化混合中和反应，并通过喷头利用空气选粒，制成特微小的水凝胶颗粒，进入温度70—80℃、8—10米厚油层的接收器中，使制好的微小颗粒分散开，然后经传送带进入水洗罐，再经过一次酸泡、一次水洗、二次酸泡、二次水洗、一次干燥，再进入沸腾炉里火化干燥去油即得。
本发明有益效果如下：
(1)通过本方案可制得粒径为125—850mm的微球形硅胶，粒度小比表面积高，大大的提高了吸附量，可实现氮吸附量在8—10ml/g，远远高出普通变压吸附硅胶的3.5—3.8ml/g；
(2)通过对微球形变压吸附硅胶表面做化学修饰后，可达到氮吸附量是13—15ml/g。
具体实施方式
下面结合实施例对本发明做进一步描述。
一种氮气吸附硅胶的制备方法，通过改变硅胶的形态和对硅胶表面做化学修饰，改变硅胶对氮气的吸附量，包括以下步骤：
1.从形态上改变变压吸附硅胶：
微球形变压吸附硅胶比普通变压吸附硅胶制胶难度大，主要在于①颗粒太小，制胶时间长，是普通变压吸附硅胶的2倍；②普通变压吸附硅胶制在常温水里，微球形是制在高温油里；③普通变压吸附硅胶二次干燥在140—150℃干燥设备烘干即可，微球形变压吸附硅胶二次烘干必须要在高温炉内火化才能将制胶过程中带的油去掉。
但与普通变压吸附硅胶相比，由于微球形硅胶颗粒直径为125—850mm，特小，它的表面形态决定了它的比表面积非常大，在850—900m2/g以上，比表面积非常高，所以吸附容量就高。其氮吸附量达到8—10ml/g，而普通变压吸附硅胶氮气吸附量只有3.5—3.8ml/g，经过表面修饰后达到13—15ml/g。
2.从变压吸附硅胶表面上做化学修饰：
具体实施条件：(1)采用接枝法，将r—胺丙基三乙氧基硅烷(牌号KH—550)作为改性剂，负载到微球形变压吸附硅胶SiO2载体上，制备出改性微球形变压吸附硅胶；(2)模拟对氮气进行吸附试验；(3)对微球形变压吸附硅胶与KH—550配成进行试验；(4)对KH—550浓度进行试验；(5)实验表明：当微球形变压吸附硅胶与KH—550配成达到1g∶2ml的比例，KH—550浓度达到12％时，微球形变压吸附硅胶对氮气的吸附量最高为13—15ml/g。
样品推出后，质量得到广大用户的高度认可。从而为企业创造了价值，为社会做出了应有的贡献。
惟以上所述者，仅为本发明的具体实施例而已，当不能以此限定本发明实施的范围，故其等同组件的置换，或依本发明专利保护范围所作的等同变化与修改，皆应仍属本发明权利要求书涵盖之范畴。
Claims (2)
1.一种氮气吸附硅胶的制备方法，其特征是，通过改变硅胶的形态和对硅胶表面做化学修饰，改变硅胶对氮气的吸附量，包括以下步骤：
第一步：生产微球形变压吸附硅胶；
第二步：对微球形变压吸附硅胶表面做化学修饰，具体方法为：
采用接枝法，将r—氨丙基三乙氧基硅烷作为改性剂，负载到微球形变压吸附硅胶SiO2载体上，制备出改性微球形变压吸附硅胶。
2.根据权利要求1所述的氮气吸附硅胶的制备方法，其特征在于，所述微球形变压吸附硅胶的生产方法为，将液态泡花碱和浓硫酸，配成一定浓度的稀溶液进行强化混合中和反应，并通过喷头利用空气选粒，制成特微小的水凝胶颗粒，进入温度70—80℃、8—10米厚油层的接收器中，使制好的微小颗粒分散开，然后经传送带进入水洗罐，再经过一次酸泡、一次水洗、二次酸泡、二次水洗、一次干燥，再进入沸腾炉里火化干燥去油即得。
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002037618A (ja) * | 2000-07-27 | 2002-02-06 | Kansai Electric Power Co Inc:The | オゾン貯蔵用シリカゲルおよびその調製方法 |
| CN101053819A (zh) * | 2007-02-09 | 2007-10-17 | 孙月竹 | 变压吸附用硅胶的生产方法 |
| CN104525099A (zh) * | 2014-12-19 | 2015-04-22 | 青岛美高集团有限公司 | 一种具有高吸附性能的硅胶及其制备方法和用途 |
| CN105413624A (zh) * | 2015-12-09 | 2016-03-23 | 中国科学院新疆理化技术研究所 | 用于阴离子染料废水处理的改性硅胶吸附材料的制备方法 |
| CN106276926A (zh) * | 2016-08-12 | 2017-01-04 | 乳山市大洋硅胶厂 | 改性变压吸附硅胶的生产方法 |
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- 2019-12-19 CN CN201911313927.XA patent/CN110898811A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002037618A (ja) * | 2000-07-27 | 2002-02-06 | Kansai Electric Power Co Inc:The | オゾン貯蔵用シリカゲルおよびその調製方法 |
| CN101053819A (zh) * | 2007-02-09 | 2007-10-17 | 孙月竹 | 变压吸附用硅胶的生产方法 |
| CN104525099A (zh) * | 2014-12-19 | 2015-04-22 | 青岛美高集团有限公司 | 一种具有高吸附性能的硅胶及其制备方法和用途 |
| CN105413624A (zh) * | 2015-12-09 | 2016-03-23 | 中国科学院新疆理化技术研究所 | 用于阴离子染料废水处理的改性硅胶吸附材料的制备方法 |
| CN106276926A (zh) * | 2016-08-12 | 2017-01-04 | 乳山市大洋硅胶厂 | 改性变压吸附硅胶的生产方法 |
Non-Patent Citations (1)
| Title |
|---|
| 王文静，丁洁，方光静编: "《高等职业院校化学化工类规划教材 化工生产技术》", 28 February 2017, 中国海洋大学出版社 * |
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