CN108314342B - 一种二水磷石膏制备α型高强石膏的方法 - Google Patents
一种二水磷石膏制备α型高强石膏的方法 Download PDFInfo
- Publication number
- CN108314342B CN108314342B CN201810403624.6A CN201810403624A CN108314342B CN 108314342 B CN108314342 B CN 108314342B CN 201810403624 A CN201810403624 A CN 201810403624A CN 108314342 B CN108314342 B CN 108314342B
- Authority
- CN
- China
- Prior art keywords
- gypsum
- type high
- phosphogypsum
- dihydrate
- acid solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010440 gypsum Substances 0.000 title claims abstract description 112
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 111
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title claims abstract description 69
- 150000004683 dihydrates Chemical class 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 54
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000002002 slurry Substances 0.000 claims abstract description 52
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000013078 crystal Substances 0.000 claims abstract description 44
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 29
- 238000003756 stirring Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000002910 solid waste Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 239000011574 phosphorus Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- -1 phosphogypsum dihydrate Chemical class 0.000 description 4
- 238000000746 purification Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002686 phosphate fertilizer Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 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
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 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
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- C04B11/032—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the wet process, e.g. dehydrating in solution or under saturated vapour conditions, i.e. to obtain alpha-hemihydrate
Abstract
Description
Claims (9)
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CN201810403624.6A CN108314342B (zh) | 2018-04-28 | 2018-04-28 | 一种二水磷石膏制备α型高强石膏的方法 |
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CN201810403624.6A CN108314342B (zh) | 2018-04-28 | 2018-04-28 | 一种二水磷石膏制备α型高强石膏的方法 |
Publications (2)
Publication Number | Publication Date |
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CN108314342A CN108314342A (zh) | 2018-07-24 |
CN108314342B true CN108314342B (zh) | 2020-09-18 |
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CN201810403624.6A Active CN108314342B (zh) | 2018-04-28 | 2018-04-28 | 一种二水磷石膏制备α型高强石膏的方法 |
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Families Citing this family (2)
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CN113402185B (zh) * | 2021-07-28 | 2022-12-02 | 泰山石膏有限公司 | 一种磷石膏中共晶磷的分离处理方法 |
CN114956625A (zh) * | 2022-06-06 | 2022-08-30 | 瓮福(集团)有限责任公司 | 一种用于工业副产磷石膏制备α型高强石膏的复合转晶剂 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000264688A (ja) * | 1999-03-17 | 2000-09-26 | Mitsui Chemicals Inc | 燐酸副生α−半水石膏の使用方法 |
CN105776303A (zh) * | 2016-01-30 | 2016-07-20 | 瓮福(集团)有限责任公司 | 一种α型半水石膏的生产方法 |
CN106866009A (zh) * | 2017-03-15 | 2017-06-20 | 贵州大学 | 一种半水磷石膏制备α型高强石膏的方法 |
-
2018
- 2018-04-28 CN CN201810403624.6A patent/CN108314342B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000264688A (ja) * | 1999-03-17 | 2000-09-26 | Mitsui Chemicals Inc | 燐酸副生α−半水石膏の使用方法 |
CN105776303A (zh) * | 2016-01-30 | 2016-07-20 | 瓮福(集团)有限责任公司 | 一种α型半水石膏的生产方法 |
CN106866009A (zh) * | 2017-03-15 | 2017-06-20 | 贵州大学 | 一种半水磷石膏制备α型高强石膏的方法 |
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Application publication date: 20180724 Assignee: Zhejiang Boming Environmental Protection and Energy Saving Technology Co.,Ltd. Assignor: Guizhou University Contract record no.: X2022520000021 Denomination of invention: Preparation of phosphogypsum dihydrate a Method of Type A High Strength Gypsum Granted publication date: 20200918 License type: Common License Record date: 20221111 |
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