CN1337383A - 液体磷酸二氢钾肥料及其生产工艺 - Google Patents
液体磷酸二氢钾肥料及其生产工艺 Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 235000019796 monopotassium phosphate Nutrition 0.000 title claims abstract description 19
- 229910000402 monopotassium phosphate Inorganic materials 0.000 title claims abstract description 17
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 24
- 239000003337 fertilizer Substances 0.000 claims abstract description 10
- -1 rare earth nitrate Chemical class 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 8
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 7
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000011591 potassium Substances 0.000 claims abstract description 7
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 7
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 7
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004327 boric acid Substances 0.000 claims abstract description 6
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 6
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 5
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 239000011734 sodium Substances 0.000 claims description 14
- 229910052708 sodium Inorganic materials 0.000 claims description 14
- 239000011573 trace mineral Substances 0.000 claims description 12
- 235000013619 trace mineral Nutrition 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 239000012466 permeate Substances 0.000 claims description 6
- 239000000375 suspending agent Substances 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 5
- 239000008139 complexing agent Substances 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 4
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical class [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims 2
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical group [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 4
- 230000012010 growth Effects 0.000 abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 4
- 239000011574 phosphorus Substances 0.000 abstract description 4
- 229940099596 manganese sulfate Drugs 0.000 abstract description 3
- 235000007079 manganese sulphate Nutrition 0.000 abstract description 3
- 239000011702 manganese sulphate Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 abstract 2
- VXLCKSFMONBCLQ-UHFFFAOYSA-N [Na]CC[Na] Chemical group [Na]CC[Na] VXLCKSFMONBCLQ-UHFFFAOYSA-N 0.000 abstract 1
- 229960002645 boric acid Drugs 0.000 abstract 1
- 229910000366 copper(II) sulfate Inorganic materials 0.000 abstract 1
- 235000015097 nutrients Nutrition 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000002686 phosphate fertilizer Substances 0.000 abstract 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical group OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 5
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 229940071106 ethylenediaminetetraacetate Drugs 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- LLJZKKVYXXDWTB-UHFFFAOYSA-N acetic acid;sodium Chemical compound [Na].[Na].CC(O)=O LLJZKKVYXXDWTB-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- KNLQKHUBPCXPQD-UHFFFAOYSA-N manganese;sulfuric acid Chemical compound [Mn].OS(O)(=O)=O KNLQKHUBPCXPQD-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- Fertilizers (AREA)
Abstract
本发明涉及一种液体磷酸二氢钾肥料及其生产工艺,液体磷酸二氢钾肥料是由下述原料制备的肥料:五氧化二磷、氢氧化钾、氮、农用硝酸稀土、乙二胺四乙酸二钠、附着剂、渗透剂、硫酸亚铁、硫酸铜、硫酸锌、硫酸锰、硼酸、钼酸胺,本发明的液体磷酸二氢钾肥料为微黄色液体,其浓度均匀,溶液稳定,所提供的磷和钾含量达到16—32左右,既保证了植物对磷、钾的需要,又防止了其结晶沉淀;使用本发明的液体磷酸钾肥料,可满足作物各个生长期营养成份的需要,促进植物的生长发育,使用方便,适应范围广,对于改良土壤结构、提高肥料的利用率有积极的作用;本发明的生产工艺简单,设备投资小,制造的产品成本低廉。
Description
技术领域
本发明涉及一种液体磷酸二氢钾肥料及其生产工艺。
背景技术
磷酸二氢钾因其可为作物生长提供钾与磷两类生长元素，因而一直深受农民朋友的欢迎，但是现有的磷酸二氢钾肥料多为粉剂产品，它具有以下缺点：1)粉剂产品一般是现配现用，受溶剂温度及溶解时间的影响，若溶剂温度过低，溶解时间短，则肥料中的有效成分难以溶解，从而影响肥料的利用率；2)溶液中的非溶解成分很容易堵塞喷雾器喷头；3)粉剂产品工艺复杂，设备投资大，生产费用高，造成产品成本高。
发明内容
本发明的目的是克服上述现有技术的缺陷，提供一种富含作物生长所需的各种营养成分，生产工艺简单、使用方便且成本低廉的液体磷酸二氢钾肥料；
本发明的另一目的是提供一种液体磷酸二氢钾肥料的生产工艺。
本发明的技术方案为：
一种液体磷酸二氢钾肥料，是由下述重量配比的原料制备的肥料
磷酸 含五氧化二磷5.5-10.0
氢氧化钾 含钾16.0-22.0
农用硝酸稀土 0.12-0.2
稳定剂 0.3-0.5
悬浮剂 0.8-1.2
渗透剂 0.05-0.1
微量元素 1.98-2.65
硼酸 0.15-2.0
钼酸胺 0.16-0.2
上述肥料总含氮量2.0-2.5；
所述稳定剂为乙二胺四乙酸二钠；
所述渗透剂为邻硝基苯酚钠与5-硝基苯酚钠的混合物；
所述邻硝基苯酚钠与5-硝基苯酚钠的重量配比为1∶1；
所述的悬浮剂为羧甲基纤维素；
所述微量元素为硫酸亚铁、硫酸铜、硫酸锌、硫酸锰；
所述微量元素中含硫酸亚铁0.2-0.4、硫酸铜0.08-0.1、硫酸锌0.1-0.15、硫酸锰1.6-2.0；
一种液体磷酸二氢钾肥料的生产工艺，包括以下步骤：
a.将85％的工业磷酸与90％的氢氧化钾在一卧式不锈钢反应器中边流动边中和；
b.循环冷却，使反应液温度降至50-60℃，调整PH至5-5.5之间；
c.将反应液打入反应罐中，降温至38-42℃，加入络合剂、微量元素，加入渗透剂、悬浮剂及农用硝酸稀土，充分搅拌，即为成品。
本发明所提供的重量配比可依据各种作物在不同生长期所需的不同营养成分进行调整。
本发明的液体磷酸二氢钾肥料为微黄色液体，其浓度均匀，溶液稳定，所提供的磷和钾含量达到16-32左右，即保证了植物对磷、钾的需要，又防止了其结晶沉淀；使用本发明的液体磷酸二氢钾肥料，可满足作物各个生长期营养成份的需要，促进植物的生长发育，使用方便，适应范围广，对于改良土壤结构、提高肥料的利用率有积极的作用；本发明的生产工艺简单，设备投资小，制造的产品成本低廉。
具体实施方式
实施例1：
将85％的工业磷酸(含P2O510Kg)和90％的KOH 20Kg在一卧式不锈钢反应器中边流动边中和，其外部用循环水将其温度控制在50-60℃之间，调节PH至5.0，然后打入反应罐中，降温到38℃；加入络合剂乙二胺四乙酸二钠(EDTA)0.3Kg，微量元素：硫酸亚铁0.3Kg，硫酸铜0.08Kg，硫酸锌0.1Kg，硫酸锰2.0Kg，硼酸2.0Kg，钼酸胺0.2Kg，充分搅拌，然后再加入邻硝基苯酚钠及5-硝基苯酚钠(比例为1∶1)共0.1Kg，羧甲基纤维素(CMC)1.2Kg及农用硝酸稀土0.2Kg，充分搅拌均匀，得到微黄色液体，灌装、包装后即为成品。
实施例2：
将85％的工业磷酸(含P2O5 6Kg)和90％的KOH 16Kg在一卧式不锈钢反应器中边流动边中和，其外部用循环水将其温度控制在50-60℃之间，调节PH至5.5，然后打入反应罐中，降温到40℃；加入络合剂乙二胺四乙酸二钠(EDTA)0.5Kg，微量元素：硫酸亚铁0.5Kg，硫酸铜0.1Kg，硫酸锌0.15Kg，硫酸锰1.6Kg，硼酸0.15Kg，钼酸胺0.2Kg，充分搅拌，然后再加入邻硝基苯酚钠及5-硝基苯酚钠(比例为1∶1)共0.05Kg，羧甲基纤维素(CMC)1.0Kg及农用硝酸稀土0.15Kg，充分搅拌均匀，得到微黄色液体，灌装、包装后即为成品。
实施例3：
将85％的工业磷酸(含P2O5 8.0Kg)和90％的KOH 22.0Kg在一卧式不锈钢反应器中边流动边中和，其外部用循环水将其温度控制在50-60℃之间，调节PH至5.5，然后打入反应罐中，降温到40℃；同时将微量元素络合：即将微量元素硫酸亚铁0.2Kg，硫酸铜0.1Kg，硫酸锌0.1Kg，硫酸锰1.8Kg加入到络合剂乙二胺四乙酸二钠(EDTA)中，所用EDTA0.4Kg，搅拌均匀，然后将络合好的微量元素加入到反应罐中，再加入硼酸2.0Kg，钼酸胺0.18Kg，充分搅拌，然后再加入邻硝基苯酚钠及5-硝基苯酚钠(比例为1∶1)共0.08Kg，羧甲基纤维素(CMC)0.8Kg及农用硝酸稀土0.12Kg，充分搅拌均匀，得到微黄色液体，灌装、包装后即为成品。
Claims (8)
1.一种液体磷酸二氢钾肥料，其特征是：它是由下述重量配比的原料制备的肥料
磷酸 含五氧化二磷5.5-10.0
氢氧化钾 含钾16.0-22.0
农用硝酸稀土 0.12-0.2
稳定剂 0.3-0.5
悬浮剂 0.8-1.2
渗透剂 0.05-0.1
微量元素 1.98-2.65
硼酸 0.15-2.0
钼酸胺 0.16-0.2
上述肥料总含氮量2.0-2.5。
2.按权利要求1所述的液体磷酸二氢钾肥料，其特征是：所述稳定剂为乙二胺四乙酸二钠。
3.按权利要求1所述的液体磷酸二氢钾肥料，其特征是：所述渗透剂为邻硝基苯酚钠与5-硝基苯酚钠的混合物。
4.按权利要求1或3所述的液体磷酸二氢钾肥料，其特征是：所述邻硝基苯酚钠与5-硝基苯酚钠的重量配比为1∶1。
5.按权利要求1所述的液体磷酸二氢钾肥料，其特征是：所述的悬浮剂为羧甲基纤维素。
6.按权利要求1所述的液体磷酸二氢钾肥料，其特征是：所述微量元素为硫酸亚铁、硫酸铜、硫酸锌、硫酸锰。
7.按权利要求1或6所述的液体磷酸二氢钾肥料，其特征是：所述微量元素中含硫酸亚铁0.2-0.4、硫酸铜0.08-0.1、硫酸锌0.1-0.15、硫酸锰1.6-2.0。
8.一种液体磷酸二氢钾肥料的生产工艺，包括以下步骤：
a.将85％的工业磷酸与90％的氢氧化钾在一卧式不锈钢反应器中边流动边中和；
b.循环冷却，使反应液温度降至50-60℃，调整PH至5-5.5之间；
c.将反应液打入反应罐中，降温至38-42℃，加入络合剂、微量元素，加入渗透剂、悬浮剂及农用硝酸稀土，充分搅拌，即为成品。
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173935A (zh) * | 2011-01-25 | 2011-09-07 | 陕西汉唐环保农业有限公司 | 一种高效特色有机钾肥及生产方法 |
| CN101665390B (zh) * | 2009-09-08 | 2012-08-22 | 华南农业大学 | 悬浮型液体复合肥料及其制备方法 |
| CN103803518A (zh) * | 2014-01-24 | 2014-05-21 | 贵阳中化开磷化肥有限公司 | 一种用湿法磷酸制备磷酸二氢钾的方法 |
| CN104250172A (zh) * | 2014-08-06 | 2014-12-31 | 广州一翔农业技术有限公司 | 快速崩解的悬浮液体复合肥料及其制备方法 |
| CN104291297A (zh) * | 2014-09-19 | 2015-01-21 | 贵阳中化开磷化肥有限公司 | 一种制备磷酸二氢钾联产萝卜专用复合肥的方法 |
| CN104291295A (zh) * | 2014-09-19 | 2015-01-21 | 贵阳中化开磷化肥有限公司 | 一种制备磷酸二氢钾联产青稞专用复合肥的方法 |
| CN106278389A (zh) * | 2016-08-12 | 2017-01-04 | 吉林万通集团有限公司 | 磷酸钾尿 |
| CN107129398A (zh) * | 2017-07-06 | 2017-09-05 | 清华大学 | 基于生产分子筛产生的废弃物制备复合肥的方法和复合肥 |
| CN107176860A (zh) * | 2016-03-11 | 2017-09-19 | 朱健勋 | 一种超高浓度磷钾肥料及制备方法 |
| CN109896893A (zh) * | 2019-03-15 | 2019-06-18 | 王新勇 | 一种高浓度黄腐酸磷酸二氢钾肥料制备方法 |
-
2001
- 2001-09-04 CN CN 01132748 patent/CN1109668C/zh not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665390B (zh) * | 2009-09-08 | 2012-08-22 | 华南农业大学 | 悬浮型液体复合肥料及其制备方法 |
| CN102173935A (zh) * | 2011-01-25 | 2011-09-07 | 陕西汉唐环保农业有限公司 | 一种高效特色有机钾肥及生产方法 |
| CN102173935B (zh) * | 2011-01-25 | 2013-11-27 | 陕西汉唐环保农业有限公司 | 一种有机钾肥及生产方法 |
| CN103803518A (zh) * | 2014-01-24 | 2014-05-21 | 贵阳中化开磷化肥有限公司 | 一种用湿法磷酸制备磷酸二氢钾的方法 |
| CN104250172A (zh) * | 2014-08-06 | 2014-12-31 | 广州一翔农业技术有限公司 | 快速崩解的悬浮液体复合肥料及其制备方法 |
| CN104291297A (zh) * | 2014-09-19 | 2015-01-21 | 贵阳中化开磷化肥有限公司 | 一种制备磷酸二氢钾联产萝卜专用复合肥的方法 |
| CN104291295A (zh) * | 2014-09-19 | 2015-01-21 | 贵阳中化开磷化肥有限公司 | 一种制备磷酸二氢钾联产青稞专用复合肥的方法 |
| CN107176860A (zh) * | 2016-03-11 | 2017-09-19 | 朱健勋 | 一种超高浓度磷钾肥料及制备方法 |
| CN106278389A (zh) * | 2016-08-12 | 2017-01-04 | 吉林万通集团有限公司 | 磷酸钾尿 |
| CN107129398A (zh) * | 2017-07-06 | 2017-09-05 | 清华大学 | 基于生产分子筛产生的废弃物制备复合肥的方法和复合肥 |
| CN109896893A (zh) * | 2019-03-15 | 2019-06-18 | 王新勇 | 一种高浓度黄腐酸磷酸二氢钾肥料制备方法 |
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|---|---|
| CN1109668C (zh) | 2003-05-28 |
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