CN114605138A - Powdery phosphate rock forming method for producing calcium magnesium phosphate fertilizer - Google Patents
Powdery phosphate rock forming method for producing calcium magnesium phosphate fertilizer Download PDFInfo
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- CN114605138A CN114605138A CN202210193868.2A CN202210193868A CN114605138A CN 114605138 A CN114605138 A CN 114605138A CN 202210193868 A CN202210193868 A CN 202210193868A CN 114605138 A CN114605138 A CN 114605138A
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- Prior art keywords
- powdery
- binder
- phosphorite
- powdered
- phosphoric acid
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- 239000002367 phosphate rock Substances 0.000 title claims abstract description 55
- 239000003337 fertilizer Substances 0.000 title claims abstract description 17
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000011230 binding agent Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 34
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 29
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 239000002253 acid Substances 0.000 claims abstract description 17
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 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 abstract description 13
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 13
- 239000000440 bentonite Substances 0.000 claims abstract description 13
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 13
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 13
- 239000011734 sodium Substances 0.000 claims abstract description 13
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 13
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 8
- 239000010452 phosphate Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 18
- 239000011574 phosphorus Substances 0.000 claims description 18
- 229910052698 phosphorus Inorganic materials 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical class O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 235000011837 pasties Nutrition 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/346—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses a method for forming powdery phosphorite for producing calcium magnesium phosphate fertilizer, which comprises the following steps of: fully mixing sodium silicate with the fineness of 50-200 meshes, sodium humate and bentonite according to a certain proportion to obtain a powdery binder; then fully mixing the powdered phosphorite with a certain proportion of powdered binder to obtain a powdered phosphorite mixture; spraying a certain amount of phosphoric acid or phosphoric acid slag acid liquid binder into the powdery phosphate rock mixture, and fully and uniformly mixing to obtain a mixed material to be processed; the mixed material is extruded, placed, aged for more than 24 hours and sieved to obtain the molded phosphate ore with the particle size of 10-100mm, the high temperature resistance of 1300 ℃, and the compressive strength of 100-300N. The powder binder and the liquid binder have good cohesiveness when used together, and the prepared molded phosphate rock has strong high temperature resistance, environmental protection and high compressive strength.
Description
Technical Field
The invention relates to the technical field of fertilizer manufacturing, in particular to a method for forming powdery phosphate rock for producing a calcium magnesium phosphate fertilizer.
Background
After the phosphate ore is mined, transported and sent to a factory for processing treatment such as crushing, drying, screening and the like, the lump ore amount is only about 50 percent, 15 to 20 percent of the lump ore is generally lost when the qualified scrubbed lump ore is purchased for preparing phosphorus, and the residual phosphate ore powder screened by yellow phosphorus production enterprises is huge in quantity, so that the phosphorus resource is greatly wasted and seriously lost economically. Some yellow phosphorus production enterprises try to adopt the process of screening the rest powdered rock phosphate (undersize ore for short) as a raw material, adding clay or water glass as a binder to form the undersize ore, and then roasting to increase the strength, so as to achieve the purposes of comprehensively utilizing precious phosphorus ore resources and reducing the product cost, but the energy consumption of the roasting after adding the binder is high.
The patent CN104261363B A powdered rock phosphate granulating, forming and roasting method, powdered rock phosphate pretreated by crushing, screening, drying and homogenizing of the powdered rock phosphate is sent to a ball mill for grinding, and then sent to a disc granulator, and added with a binder made of acid sludge which is an intermediate product of wet-process phosphoric acid production by a dihydrate method, so that the powdered rock phosphate is mutually bonded to prepare the powdered rock phosphate with the granularity of 20-30 mm, and the tail gas of a phosphorus furnace is introduced into a grate type roasting machine for roasting at 850-950 ℃, and then cooled by air cooling, thus preparing the powdered rock phosphate pellet for yellow phosphorus production. This patent is broken with the phosphorite, sieves, dries, still will get into the ball-milling, and disc granulation again, complex operation, stoving and calcination energy consumption are high.
Patent CN108249411B A preparation method of ground or crushed phosphorite binder and a production method of molded ore, wherein industrial by-product mainly containing silicon oxide is used as raw material, caustic soda and catalyst are added to prepare ground or crushed phosphorite binder; the binder and the ground phosphate rock or the crushed phosphate rock are pelletized and calcined to obtain the raw material for producing yellow phosphorus by an electric furnace method, namely the molded ore. Caustic soda, a strong alkaline chemical, is required.
The patent CN96103837.3 discloses a method for bonding broken phosphate rock into lumps, which is to add phosphoric acid as a binder into broken phosphate rock with the granularity less than 8mm, uniformly stir the mixture, wherein the adding amount of the phosphoric acid is calculated by phosphorus pentoxide, 0.5-2 parts of phosphorus pentoxide are added into every 100 parts of the broken phosphate rock, then the mixture is pressed and formed by a forming machine to prepare green pellets, and the green pellets are dried at the temperature of 200-800 ℃ until the moisture content is less than or equal to 1% or naturally air-dried. The above method requires drying or air drying.
The invention discloses a method for forming broken phosphorite, and belongs to the technical field of comprehensive utilization of mineral resources. Adding 2-4% of activated kaolin, 4-5% of water glass and 10-12% of process water into the crushed phosphorite by mass of a dry crushed phosphorite base, stirring, mixing and homogenizing the mixture, and standing and maintaining the mixture after forming to obtain a finished product. However, the activated kaolin needs to be activated for 40-60 min at the temperature of 600-700 ℃, and the energy consumption for preparing the activated kaolin is high, so that the problem of dust is involved.
The patent CN105271147B thermal process phosphorus mud type phosphorus ore powder binder is prepared by adding phosphorus-containing wastewater generated in the production process of thermal process yellow phosphorus into an acid mud stirring tank, slowly adding pasty acid mud with the percentage content of free phosphoric acid generated by filtering phosphoric acid prepared by thermal process phosphorus mud being 25-30% and the percentage content of P2O5 being 30-35%, uniformly stirring and mixing to obtain suspension, and preparing the phosphorus ore powder binder with the solid content of 70-80% and the percentage content of P2O5 being 28-32%. The binder and the powdered rock phosphate are mixed in proportion and then used for powdered rock phosphate pelletizing, forming, drying or granulating and roasting processes to produce the powdered rock phosphate pellets. The process is complicated to operate, and pasty acid mud needs to be prepared first and then suspension is prepared.
In summary, various types of binders and preparative ore methods have been developed around the forming technology of crushed phosphate rock or powdered phosphate rock, and have various characteristics and advantages, but sodium silicate, sodium humate and bentonite are fully mixed according to a certain proportion to be used as powdery binders, and phosphoric acid or/and phosphoric acid slag acid is used as a liquid binder, which is not reported yet.
Disclosure of Invention
In order to solve the problems and defects of the prior art, the invention provides a method for forming powdered phosphate rock for producing a calcium-magnesium-phosphate fertilizer. Phosphoric acid or/and phosphoric acid slag acid are/is used as a liquid binder, the two binders are used together, the binding property is good, and the prepared molded phosphate rock is strong in high-temperature resistance, environment-friendly and high in compressive strength.
The invention is realized by the following technical scheme:
a method for forming powdery phosphate rock for producing calcium magnesium phosphate fertilizer is characterized by comprising the following steps:
(1) preparing a powdery binder: fully mixing sodium silicate with fineness of 50-200 meshes, sodium humate and bentonite according to a certain proportion to obtain a powdery binder;
(2) then fully mixing the powdered phosphorite with a certain proportion of powdered binder to obtain a powdered phosphorite mixture;
(3) spraying a certain amount of phosphoric acid or/and phosphoric acid slag acid liquid binder into the powdery phosphate rock mixture, and fully and uniformly mixing to obtain a mixed material to be processed; the mixed material is extruded, placed and aged for more than 24 hours and sieved to obtain the molded phosphate ore with the strength of 100-300N and the thickness of 10-100 mm.
The main raw materials of the powdery binder are sodium silicate, sodium humate and bentonite, and the liquid binder is phosphoric acid or/and phosphoric acid slag acid, and is a raw material generally purchased in the market.
The powdery binder comprises 1-50% of sodium silicate, 1-50% of sodium humate and 1-50% of bentonite by mass
The addition amount of the powdery binder is 1 to 20 percent of the total amount of the powdery phosphorite mixture.
The added phosphoric acid or phosphoric acid slag acid accounts for 5 to 15 percent of the total weight of the powdery phosphorite mixture.
The shape of the molded phosphate ore is spherical, ellipsoidal, massive, flaky or polyhedral.
The beneficial effects of the invention are: sodium silicate, sodium humate and bentonite are fully mixed according to a certain proportion to be used as a powdery binder, phosphoric acid or phosphoric acid slag acid is used as a liquid binder, the powdery binder and the liquid binder have good cohesiveness when used together, and the prepared molded phosphate ore has strong high temperature resistance, environmental friendliness and high compressive strength.
Detailed Description
The invention is further described in connection with the examples, which are obtained as raw materials for the examples. The examples are given in parts by weight.
Example 1
A method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer, the method for preparing powdered binder is as follows: 50 parts of sodium silicate with fineness of 50 meshes, 1 part of sodium humate and 49 parts of bentonite are fully mixed to obtain a powdery binder, then 10 parts of the powdery binder are added into 90 parts of powdery phosphorite and uniformly mixed, 10 parts of phosphoric acid is sprayed into 100 parts of the mixture, and the mixture is extruded and granulated, placed and aged for 24 hours and screened to obtain 10-100mm ellipsoidal phosphorite with strength of 300N.
Example 2
A method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer, the method for preparing powdered binder is: 1 part of sodium silicate with the fineness of 200 meshes, 49 parts of sodium humate and 50 parts of bentonite are fully mixed to obtain a powdery binder, then 15 parts of the powdery binder is added into 85 parts of powdery phosphorite and uniformly mixed, 7 parts of phosphoric acid slag acid is sprayed into 100 parts of the mixture, and the mixture is extruded and granulated, placed and aged for 30 hours and then screened to obtain 10-100mm ellipsoidal phosphorite with the strength of 200N.
Example 3
A method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer, the method for preparing powdered binder is: 49 parts of sodium silicate with the fineness of 100 meshes, 50 parts of sodium humate and 1 part of bentonite are fully mixed to obtain a powdery binder, then 12 parts of the powdery binder are added into 88 parts of powdery phosphorite and uniformly mixed, 6 parts of phosphoric acid slag acid is sprayed into 100 parts of the mixture, and the mixture is extruded and granulated, placed and aged for 28 hours and then screened to obtain 10-100mm ellipsoidal phosphorite with the strength of 100N.
Example 4
A method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer, the method for preparing powdered binder is: 20 parts of sodium silicate with fineness of 80 meshes, 40 parts of sodium humate and 40 parts of bentonite are fully mixed to obtain a powdery binder, then 20 parts of the powdery binder is added into 80 parts of powdery phosphorite and uniformly mixed, 2 parts of phosphoric acid slag acid and 3 parts of phosphoric acid are sprayed into 100 parts of the mixture, and the mixture is extruded and granulated, is placed and aged for 25 hours and is screened to obtain the massive phosphorite with the strength of 150N and the thickness of 10-100 mm.
Example 5
A method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer, the method for preparing powdered binder is: 39 parts of sodium silicate with the fineness of 100 meshes, 25 parts of sodium humate and 36 parts of bentonite are fully mixed to obtain a powdery binder, then 1 part of the powdery binder is added into 99 parts of powdery phosphorite and uniformly mixed, 15 parts of phosphoric acid slag acid is sprayed into 100 parts of the mixture, and the mixture is extruded and granulated, placed and aged for 28 hours and then screened to obtain the polyhedral phosphorite with the fineness of 10-100mm and the strength of 120N.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A method for forming powdery phosphate rock for producing calcium magnesium phosphate fertilizer is characterized by comprising the following steps:
(1) preparing a powdery binder: fully mixing sodium silicate with the fineness of 50-200 meshes, sodium humate and bentonite according to a certain proportion to obtain a powdery binder;
(2) then fully mixing the powdered phosphorite with a certain proportion of powdered binder to obtain a powdered phosphorite mixture;
(3) spraying a certain amount of phosphoric acid or/and phosphoric acid slag acid liquid binder into the powdery phosphorite mixture, and fully and uniformly mixing to obtain a mixed material to be processed; the mixed material is extruded, placed and aged for more than 24 hours and sieved to obtain the molded phosphate ore with the strength of 100-300N and the thickness of 10-100 mm.
2. The method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer according to claim 1, is characterized in that: the adhesive comprises 1-50% of sodium silicate, 1-50% of sodium humate and 1-50% of bentonite by mass.
3. The method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer according to claim 1, is characterized in that: the addition amount of the powdery binder is 1 to 20 percent of the total amount of the powdery phosphorite mixture.
4. The method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer according to claim 1, is characterized in that: the added phosphoric acid or/and phosphoric acid slag acid accounts for 5-15% of the total weight of the powdery phosphorite mixture.
5. The method for forming powdered phosphorus ore for producing calcium magnesium phosphate fertilizer according to claim 1, is characterized in that: the shape of the molded phosphate ore is spherical, ellipsoidal, massive, flaky or polyhedral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210193868.2A CN114605138A (en) | 2022-03-01 | 2022-03-01 | Powdery phosphate rock forming method for producing calcium magnesium phosphate fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210193868.2A CN114605138A (en) | 2022-03-01 | 2022-03-01 | Powdery phosphate rock forming method for producing calcium magnesium phosphate fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114605138A true CN114605138A (en) | 2022-06-10 |
Family
ID=81858353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210193868.2A Pending CN114605138A (en) | 2022-03-01 | 2022-03-01 | Powdery phosphate rock forming method for producing calcium magnesium phosphate fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114605138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057747A (en) * | 2022-07-13 | 2022-09-16 | 方城县华裕肥料有限公司 | Granulation process of soil conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3249534A (en) * | 1962-10-17 | 1966-05-03 | Ware Frank | Fire retarding composition and method of using phosphate rock and shale |
| US3829389A (en) * | 1972-03-04 | 1974-08-13 | Montedison Spa | Process for preparing calcium nitrate and phosphoric acid solutions free from solid particles in suspension |
| CN103663396A (en) * | 2013-10-26 | 2014-03-26 | 刘静忠 | Balling method using medium- and low-grade phosphate rocks or ground phosphate rocks |
| CN106591569A (en) * | 2016-11-15 | 2017-04-26 | 江苏省冶金设计院有限公司 | Method and system for restraining reduction degradation of kakoxene pellet |
| CN111363591A (en) * | 2020-04-24 | 2020-07-03 | 贵州航天迈未科技有限公司 | Device and method for co-producing yellow phosphorus and synthesis gas by utilizing phosphorus coal to perform pressurized gasification and reduction on phosphate ore |
| CN113200778A (en) * | 2021-04-23 | 2021-08-03 | 湖北富邦科技股份有限公司 | Calcium magnesium phosphate fertilizer granulating agent and application thereof |
-
2022
- 2022-03-01 CN CN202210193868.2A patent/CN114605138A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3249534A (en) * | 1962-10-17 | 1966-05-03 | Ware Frank | Fire retarding composition and method of using phosphate rock and shale |
| US3829389A (en) * | 1972-03-04 | 1974-08-13 | Montedison Spa | Process for preparing calcium nitrate and phosphoric acid solutions free from solid particles in suspension |
| CN103663396A (en) * | 2013-10-26 | 2014-03-26 | 刘静忠 | Balling method using medium- and low-grade phosphate rocks or ground phosphate rocks |
| CN106591569A (en) * | 2016-11-15 | 2017-04-26 | 江苏省冶金设计院有限公司 | Method and system for restraining reduction degradation of kakoxene pellet |
| CN111363591A (en) * | 2020-04-24 | 2020-07-03 | 贵州航天迈未科技有限公司 | Device and method for co-producing yellow phosphorus and synthesis gas by utilizing phosphorus coal to perform pressurized gasification and reduction on phosphate ore |
| CN113200778A (en) * | 2021-04-23 | 2021-08-03 | 湖北富邦科技股份有限公司 | Calcium magnesium phosphate fertilizer granulating agent and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057747A (en) * | 2022-07-13 | 2022-09-16 | 方城县华裕肥料有限公司 | Granulation process of soil conditioner |
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