CN103183364B - Method for producing potassium chloride and co-producing calcium, magnesium, phosphorus and silicon composite fertilizer by potassium feldspar - Google Patents
Method for producing potassium chloride and co-producing calcium, magnesium, phosphorus and silicon composite fertilizer by potassium feldspar Download PDFInfo
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- CN103183364B CN103183364B CN201310153294.7A CN201310153294A CN103183364B CN 103183364 B CN103183364 B CN 103183364B CN 201310153294 A CN201310153294 A CN 201310153294A CN 103183364 B CN103183364 B CN 103183364B
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- magnesium
- phosphorus
- calcium
- composite fertilizer
- potassium
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 44
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 239000011575 calcium Substances 0.000 title claims abstract description 26
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 25
- 239000010703 silicon Substances 0.000 title claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 25
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 24
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 title claims abstract description 24
- 239000011574 phosphorus Substances 0.000 title claims abstract description 24
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 24
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000011777 magnesium Substances 0.000 title claims abstract description 23
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000001103 potassium chloride Substances 0.000 title abstract description 6
- 235000011164 potassium chloride Nutrition 0.000 title abstract description 6
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 title abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 150000003839 salts Chemical class 0.000 claims abstract description 12
- 238000001354 calcination Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 40
- 239000011591 potassium Substances 0.000 claims description 40
- 229910052700 potassium Inorganic materials 0.000 claims description 40
- 239000004576 sand Substances 0.000 claims description 30
- 239000002367 phosphate rock Substances 0.000 claims description 15
- 238000010304 firing Methods 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- 238000004448 titration Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 239000003818 cinder Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 3
- 239000010452 phosphate Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract description 2
- 239000010459 dolomite Substances 0.000 abstract 1
- 229910000514 dolomite Inorganic materials 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 31
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 11
- 229940072033 potash Drugs 0.000 description 11
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 11
- 235000015320 potassium carbonate Nutrition 0.000 description 11
- 239000000126 substance Substances 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 241000370738 Chlorion Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000010433 feldspar Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 229910001425 magnesium ion Inorganic materials 0.000 description 3
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- SQHCSJYTLVQMOK-UHFFFAOYSA-N [P].[Si].[Ca].[Mg] Chemical compound [P].[Si].[Ca].[Mg] SQHCSJYTLVQMOK-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- -1 silicon ion Chemical class 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 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 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000551 Silumin Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052934 alunite Inorganic materials 0.000 description 1
- 239000010424 alunite Substances 0.000 description 1
- NCEFRBSXBILZPP-UHFFFAOYSA-M azanium;potassium;sulfate Chemical compound [NH4+].[K+].[O-]S([O-])(=O)=O NCEFRBSXBILZPP-UHFFFAOYSA-M 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 description 1
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- Fertilizers (AREA)
Abstract
The invention relates to a method for producing potassium chloride and co-producing a calcium, magnesium, phosphorus and silicon composite fertilizer by potassium feldspar. The method comprises the following steps of: preparing materials, crushing and mixing the materials to form raw materials, homogenizing and calcining, and finally preparing potassium chloride and calcium, magnesium, phosphorus and silicon composite fertilizer, wherein the raw materials comprise the components in percentage by weight as follows: 40-46% of potassium feldspar, 30-38% of phosphate ore, 12-16% of dolomite and 9-11% of industrial salt; calcining at 850-950 DEG C, and if a rotary kiln is selected, calcining at 850-900 DEG C; water-quenching red hot clinkers obtained, separating liquid from dregs and concentrating the liquid to obtain potassium chloride; drying, dehydrating and crushing residual solid dregs to 150-200 meshes, and packaging to obtain the calcium, magnesium, phosphorus and silicon composite fertilizer. Compared with the prior art, not only is the sintering temperature reduced by 40 DEG G, but also the calcining cost is reduced by 50% and the yield is improved by 5-6 times.
Description
Technical field
The present invention relates to chemical fertilizer field, particularly relate to the method utilizing potassium felspar sand to produce potassium chloride fertilizer coproduction calcium magnesium phosphorus silicon multi-component composite fertilizer.
Background technology
Utilize the phosphate-containing ores such as potassium felspar sand, sericite, white garnet, alunite to produce potash fertilizer and have centenary history, because potash fertilizer is in short supply during World War I, successively potassium felspar sand and lime burning leaching is utilized to manufacture potash fertilizer in states such as the U.S., Russia, Japan; The middle of last century USSR (Union of Soviet Socialist Republics), Brazil, South Africa and India successively do in insoluble potassic mineral material and extract sylvite and manufacture potash fertilizer, but along with the soluble potassium salt mine of cheapness exploitation with to dump and these factories that calm down of World War II have stopped production again.China, in the research just starting this project in the early days of foundation, mainly utilizes the process by-product kiln ash potash fertilizer producing cement clinker at the seventies, after the eighties, the research of roasting leaching method is more, and the nineties middle period is domestic occurs low wet dissociation potassium felspar sand.The turn of the century is due to potash fertilizer price height enterprise, the research that potassium felspar sand manufactures potash fertilizer is very active, the patent of having emerged in large numbers more method and having declared, sum up to get up can be divided into the molten method of salt, acid system, alkaline process, fluoride method by decomposition media, volatilization method, a few class such as roasting leaching method, wet method etc. can be divided into again by isolation.Be called that " potash feldspar ore Wet Decomposition method " patent No. is ZL96118069.2 as Changsha designing institute of the Ministry of Chemical Industry proposes name, name is called " potash feldspar ore wet decomposing materials floatation separating technology ", and application number is 97108312.6; University of Science and Technology, Shandong Xue Yan brightness proposes " a kind of method of catalyzer low-temperature decomposing of potassium feldspar ", above several method in fact all adopts fluorochemical to decompose, sulfuric acid to leach produces potassium sulfate or potassium-ammonium sulfate, by-product white carbon black, aluminum oxide, polymerization ferrous sulfate, silumin etc., add that product is inter-trade across class because above method relates to materials such as adopting the fluorochemical vitriol oil, not only have high input, and risk is also very large, therefore the report of so far there are no extensive industrialization." production of new multicomponent mineral manure silicon-calcium-potafertilizer fertilizer and application " is released recently by Chinese Academy of Sciences's chemistry institute, Agricultural University Of Nanjing, Jiangsu academy of agricultural sciences; the traditional kiln car of this method is produced; labour intensity is large; production efficiency is low; and firing temperature reaches 1350 DEG C; and due to potassium content on the low side, be worth not high, its transportation cost limits its large-scale production and remote to sell.
Summary of the invention
For overcoming the existing above-mentioned defect utilized in potassium felspar sand production potash fertilizer method, the object of this invention is to provide a kind of method utilizing potassium felspar sand to produce Repone K co-production calcium, magnesium, phosphorus, silicon composite fertilizer, in order to simplify production process, reach energy-saving and cost-reducing object of increasing economic efficiency.
The object of the present invention is achieved like this: the method for Repone K co-production calcium, magnesium, phosphorus, silicon composite fertilizer produced by the potassium felspar sand that utilizes designed, and comprises the steps:
1. get the raw materials ready: assort following starting material by weight percentage;
Potassium felspar sand (K
2oAL
2o
36SiO
2) 40 ~ 46, Rock Phosphate (72Min BPL) (Ca
5(PO
4)
3f) 30 ~ 38, rhombspar (CaCO
3mgCO
3) 12 ~ 16, Industrial Salt (NaCl) 9 ~ 11;
2. pulverize and be mixed into raw material:
First potassium felspar sand Rock Phosphate (72Min BPL), rhombspar are distinguished broken deironing again by weight mix: potassium felspar sand 40 ~ 46, Rock Phosphate (72Min BPL) 30 ~ 38, rhombspar 12 ~ 16; Industrial Salt 9 ~ 11, then jointly enters abrasive dust and is milled to 180 ~ 200 orders and becomes raw material, stand-by;
3. homogenizing: step 2 batching is made raw material, crosses after 180 mesh sieve deironing and send into homogenizing storehouse, it is qualified to record when carbonic acid titration value deviation is not more than 0.2%;
4. burn till: qualified for the homogenizing rear namely raw material that composition is uniform and stable are entered kiln calcining, if when selecting mechanical shaft kiln burning, its calcining temperature is 850 DEG C ~ 950 DEG C, if when selecting rotary kiln, firing temperature is 850 DEG C ~ 900 DEG C;
5. make Repone K and calcium, magnesium, phosphorus, silicon composite fertilizer: red heat shape grog shrend Liao ︰ water=1 ︰ 1 step 4 obtained, 10 minutes are incubated at temperature 100 DEG C ~ 120 DEG C, then melt cinder is separated, namely liquid concentration obtains Repone K, remaining solid slag drying and dehydrating grinding is become 150 ~ 200 orders packaging after calcium, magnesium, phosphorus, silicon composite fertilizer;
6. make calcium, magnesium, phosphorus, potassium, silicon multi-component composite fertilizer: by clinker cooling obtained for step 4, after grinding to 150 ~ 200 order packaging calcium, magnesium, phosphorus, potassium, silicon multi-component composite fertilizer.
Compared with present technology, the present invention has following substantive features and marked improvement:
1. because the structure of mixing as destroying silicon-dioxide of rhombspar provides calcium oxide, magnesium oxide, simultaneously also for forming Calucium Silicate powder, Magnesium Silicate q-agent provides basic substance and for reducing the creative condition of firing temperature, the solubility especially improving sinter provides calcium, magnesium ion for manufacturing chemical fertilizer;
2. present invention employs Rock Phosphate (72Min BPL), be mainly silicon ion and its calcium ion chemical combination in potassium felspar sand, simultaneously also for reducing the source providing phosphorus in firing temperature and composite fertilizer;
3. present invention employs Industrial Salt, is mainly Potassium in K Feldspar ion and its chlorion chemical combination, and the strong fluxing action of sodium makes firing temperature reduce significantly simultaneously, thus reduces manufacturing cost, and the industrialization manufacturing potash fertilizer for potassium felspar sand creates favourable condition;
4. the present invention adopts each component proportion of material to bring following benefit respectively:
A. the content of potassium felspar sand is selected to be 40 ~ 46, being preferably 42 ~ 44, is when potassium felspar sand is more than 46, because too much silicon-dioxide does not have calcium ions and magnesium ions chemical combination with it, thus do not have complete decomposing of potassium feldspar, unnecessary unreacted reactant can not produce solvability and can not be absorbed by plants; When potassium felspar sand lower than 40 time, in composite fertilizer potassium content reduce and affect fertilizer efficiency;
B. select Rock Phosphate (72Min BPL) to be 30 ~ 38, being preferably 32 ~ 36, is when Rock Phosphate (72Min BPL) is more than 38, correspondingly makes the content of potassium felspar sand reduce and cause potassium content to reduce, its Available Phosphate Content in Compound Fertilizers minimizing when Rock Phosphate (72Min BPL) is less than 32;
C. select rhombspar content to be 12 ~ 16, being preferably 13 ~ 15, is when rhombspar is more than 16, decreases allocating into of potassium felspar sand or Rock Phosphate (72Min BPL), when rhombspar is less than 12, does not have again the silicon ion chemical combination in enough calcium, magnesium ion and potassium felspar sand;
D. Industrial Salt content is selected to be 9 ~ 11, be preferably 9.5 ~ 10.5, be when Industrial Salt more than 11 time, after chlorion and potassium ion chemical combination, remaining chlorion and calcium ion reaction generate calcium chloride and produce flocculation phenomenon, affect the dispersing property of fertilizer, when Industrial Salt is less than 9, free potassium ion does not react with chlorion and affects fertilizer efficiency;
In a word, compared to the prior art the present invention utilizes the manufacture method of potassium felspar sand production Repone K coproduction calcium, magnesium, phosphorus, silicon composite fertilizer, its sintering temperature not only can be made to reduce by 400 DEG C, can also reduce and burn till cost 50%, improve output 5 ~ 6 times.
Embodiment
The present invention is further described by the following examples:
Embodiment one: utilize the method for potassium felspar sand production potassium oxide co-production calcium, magnesium, phosphorus, silicon composite fertilizer to comprise the steps:
1. get the raw materials ready: get all the following starting material by weight percentage ready:
Potassium felspar sand 43, Rock Phosphate (72Min BPL) 33, rhombspar 14, Industrial Salt 10, total amount 100;
2. pulverize and be mixed into raw material: first by potassium felspar sand, Rock Phosphate (72Min BPL), rhombspar respectively broken deironing remix jointly enter to be milled to 180 ~ 200 orders and make raw material;
3. homogenizing: raw material step 2 be mixed with send into homogenizing storehouse after crossing 180 mesh sieve deironing, it is qualified to measure when its calcium carbonate titration value is less than 0.2%;
4. burn till: qualified for the homogenizing rear namely raw material that composition is uniform and stable are entered kiln calcining, if select boiler-turbine CCS, firing temperature 850 DEG C ~ 950 DEG C, if select rotary kiln, firing temperature is 850 DEG C ~ 900 DEG C;
5. make Repone K and calcium, magnesium, phosphorus, silicon composite fertilizer: red heat grog shrend Liao ︰ water=1 ︰ 1 step 4 obtained, 100 DEG C ~ 120 DEG C are incubated 10 minutes, then by liquid separation, namely liquid concentration obtains Repone K, remaining solid slag drying and dehydrating grinding is become 150 ~ 200 orders packaging calcium, magnesium, phosphorus, silicon composite fertilizer;
6. make calcium, magnesium, phosphorus, potassium, silicon multi-component composite fertilizer: red heat clinker cooling step 4 obtained, grinding to 15 ~ 200 order packaging calcium, magnesium, phosphorus, potassium, silicon multi-component composite fertilizer.
Embodiment two:
1. get the raw materials ready: get all the following starting material ready by weight percentage
Potassium felspar sand 40, Rock Phosphate (72Min BPL) 36, rhombspar 15, Industrial Salt 9, total amount 100;
2. pulverize and be mixed into raw material: first by potassium felspar sand, Rock Phosphate (72Min BPL), rhombspar respectively broken deironing remix jointly enter to be milled to 180 ~ 220 orders and make raw material;
3. homogenizing: raw material step 2 be mixed with send into homogenizing storehouse after crossing 180 mesh sieve deironing, it is qualified to measure when its calcium carbonate titration value deviation is less than 0.2%;
4. burn till: qualified for the homogenizing rear namely raw material that composition is uniform and stable are entered kiln calcining, if select boiler-turbine CCS, firing temperature 850 DEG C ~ 950 DEG C, if select rotary kiln, firing temperature is 850 DEG C ~ 900 DEG C;
5. make Repone K and calcium, magnesium, phosphorus, silicon composite fertilizer: red heat grog shrend Liao ︰ water=1 ︰ 1 step 4 obtained, 100 DEG C ~ 120 DEG C are incubated 10 minutes, then by liquid separation, namely liquid concentration obtains Repone K, remaining solid slag drying and dehydrating grinding is become 150 ~ 200 orders packaging calcium, magnesium, phosphorus, silicon composite fertilizer;
6. make calcium, magnesium, phosphorus, potassium, silicon multi-component composite fertilizer: red heat clinker cooling step 4 obtained, grinding to 15 ~ 200 order packaging calcium, magnesium, phosphorus, potassium, silicon multi-component composite fertilizer.
Above are only two specific embodiments of the present invention, but design concept of the present invention is not limited to this, all changes utilizing this design the present invention to be carried out to unsubstantiality, all just belong to the behavior of invading scope.
Claims (1)
1. utilize potassium felspar sand to produce a method for Repone K co-production calcium, magnesium, phosphorus, silicon composite fertilizer, it is characterized in that: the method comprises the steps:
(1). get the raw materials ready: assort following starting material by weight percentage;
Potassium felspar sand 40 ~ 46, Rock Phosphate (72Min BPL) 30 ~ 38, rhombspar 12 ~ 16, Industrial Salt 9 ~ 11;
(2). pulverize and be mixed into raw material:
First by potassium felspar sand, Rock Phosphate (72Min BPL), rhombspar respectively broken deironing mix by weight percentage again: potassium felspar sand 40 ~ 46, Rock Phosphate (72Min BPL) 30 ~ 38, rhombspar 12 ~ 16; Industrial Salt 9 ~ 11, then jointly enters abrasive dust and is milled to 180 ~ 200 orders and becomes raw material, stand-by;
(3). homogenizing: (2) step is prepared burden and makes raw material, cross after 180 mesh sieve deironing and send into homogenizing storehouse, it is qualified to record when carbonic acid titration value deviation is not more than 0.2%;
(4). burn till: qualified for the homogenizing rear namely raw material that composition is uniform and stable are entered kiln calcining, if when selecting mechanical shaft kiln burning, its calcining temperature is 850 DEG C ~ 950 DEG C, if when selecting rotary kiln, firing temperature is 850 DEG C ~ 900 DEG C;
(5). make Repone K and calcium, magnesium, phosphorus, silicon composite fertilizer: red heat shape grog shrend step (4) obtained; material ︰ water=1 ︰ 1,10 minutes are incubated at temperature 100 DEG C ~ 120 DEG C, then melt cinder is separated, namely liquid concentration obtains Repone K, remaining solid slag drying and dehydrating grinding is become 150 ~ 200 orders packaging after calcium, magnesium, phosphorus, silicon composite fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153294.7A CN103183364B (en) | 2013-04-28 | 2013-04-28 | Method for producing potassium chloride and co-producing calcium, magnesium, phosphorus and silicon composite fertilizer by potassium feldspar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153294.7A CN103183364B (en) | 2013-04-28 | 2013-04-28 | Method for producing potassium chloride and co-producing calcium, magnesium, phosphorus and silicon composite fertilizer by potassium feldspar |
Publications (2)
| Publication Number | Publication Date |
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| CN103183364A CN103183364A (en) | 2013-07-03 |
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| CN104557188A (en) * | 2013-10-29 | 2015-04-29 | 广西浙商投资有限公司 | Technology for preparing special fertilizer for cultivating dendrobium officinale |
| CN104973904A (en) * | 2014-04-11 | 2015-10-14 | 王忠厚 | Water-soluble Si/Ca/K mineral element ecological organic fertilizer and preparation method |
| CN104387206B (en) * | 2014-10-31 | 2017-03-15 | 河北中瑞农业科技有限公司 | A kind of preparation method of silico-calcium potassium magnesium soil conditioner |
| CN104355934A (en) * | 2014-11-04 | 2015-02-18 | 湖南新宇农业科技有限公司 | Secondary element composite fertilizer capable of increasing yield and improving quality and preparation method of secondary element composite fertilizer |
| CN109265300A (en) * | 2018-11-29 | 2019-01-25 | 雷雨霖 | A kind of manufacturing method of chloride containing potassium soil conditioner |
| CN110776363A (en) * | 2019-11-13 | 2020-02-11 | 武汉工程大学 | Compound fertilizer preparation method and product prepared by same |
| EP4077242A1 (en) * | 2020-02-18 | 2022-10-26 | Advanced Potash Technologies Ltd | Multi-phase material-containing compositions and related methods of preparation and use |
| CN112341291B (en) * | 2020-11-03 | 2022-03-11 | 中国科学院过程工程研究所 | Device and method for preparing calcium-silicon-potassium phosphate fertilizer and hydrochloric acid by utilizing phosphorite |
| CN112408429A (en) * | 2020-11-25 | 2021-02-26 | 华融化学股份有限公司 | Process for refining primary saline water and preparing by-product slow-release compound fertilizer |
| CN114538988B (en) * | 2022-03-01 | 2023-01-24 | 湖北富邦科技股份有限公司 | Calcium magnesium phosphate fertilizer activated by inorganic porous material and preparation method thereof |
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Effective date of registration: 20201210 Address after: No. 1, building 44, Nantong Development Zone, Changxing City, Jiangsu Province Patentee after: Jiangsu nading Material Technology Co., Ltd Address before: Building 2, Deyuan lane, Dehai garden, Wuling Town, Dingcheng District, Changde City, Hunan Province Patentee before: Lei Zhigang |