SU361556A1 - - Google Patents
Info
- Publication number
- SU361556A1 SU361556A1 SU1431565A SU1431565A SU361556A1 SU 361556 A1 SU361556 A1 SU 361556A1 SU 1431565 A SU1431565 A SU 1431565A SU 1431565 A SU1431565 A SU 1431565A SU 361556 A1 SU361556 A1 SU 361556A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- calcium sulfate
- hemihydrate
- dihydrate
- autoclave
- product
- Prior art date
Links
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 12
- 235000011132 calcium sulphate Nutrition 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical class O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 4
- 150000004683 dihydrates Chemical class 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 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 3
- 230000001376 precipitating Effects 0.000 description 3
- 230000002378 acidificating Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 244000007645 Citrus mitis Species 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N Hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 210000004940 Nucleus Anatomy 0.000 description 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N Phosphorus pentoxide Chemical class O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K [O-]P([O-])([O-])=O Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 150000003388 sodium compounds Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1431565A SU361556A3 (zh) | 1970-04-17 | 1970-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1431565A SU361556A3 (zh) | 1970-04-17 | 1970-04-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU361556A1 true SU361556A1 (zh) | |
| SU361556A3 SU361556A3 (zh) | 1972-12-07 |
Family
ID=20452276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1431565A SU361556A3 (zh) | 1970-04-17 | 1970-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU361556A3 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ587328A (en) * | 2008-02-19 | 2012-03-30 | United States Gypsum Co | Method and apparatus for pressurized calcination of gypsum |
-
1970
- 1970-04-17 SU SU1431565A patent/SU361556A3/ru active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3410655A (en) | Production of alpha-calcium sulfate hemihydrate | |
| CA2662895C (en) | Process for manufacturing ultra low consistency .alpha.- and .beta.- blend stucco | |
| AU2009277498A1 (en) | Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process | |
| KR101700338B1 (ko) | 인산의 제조방법 | |
| SU695549A3 (ru) | Способ получени фосфорной кислоты | |
| SU361556A1 (zh) | ||
| CA1211919A (en) | Method for preparing phosphoric acid and calcium sulfate | |
| KR20010104238A (ko) | 고순도 석고의 제조방법 | |
| US3580703A (en) | Process for the purification of residual gypsum formed in the manufacture of phosphoric acid by the action of sulphuric acid on natural phosphates | |
| US1900381A (en) | System for producing gypsum | |
| US2021910A (en) | Preparation of calcium sulphate | |
| AU2012241005B2 (en) | Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process | |
| US1548358A (en) | Plaster of paris and method of making the same | |
| KR0147927B1 (ko) | 이수석고의 제조방법 | |
| US4113835A (en) | Process for preparing pure synthetic calcium sulfate semihydrate | |
| US2316343A (en) | Manufacture of calcium sulphate | |
| SU791217A3 (ru) | Способ получени -полугидрата сульфата кальци | |
| JPH08225320A (ja) | 湿式燐酸副生α−半水石膏の改質方法 | |
| RU2400426C1 (ru) | Способ получения гипса | |
| SU945076A1 (ru) | Способ очистки фосфогипса | |
| DK167350B1 (da) | Fremgangsmaade til behandling af alfa-formen af kalciumsulfat-hemihydrat, og et produkt indeholdende det derved vundne produkt | |
| PL61682B1 (zh) | ||
| JPH04139042A (ja) | 石膏抄造板の製造方法 | |
| SU530004A1 (ru) | Способ получени гипсового выжущего | |
| SU1491834A1 (ru) | Способ получени в жущего |