CU20140111A7 - SPECIAL HALIHYDRATES ALPHA AND BETA CALCIUM SULFATE, PROCEDURE OF OBTAINING FROM PLASTER MINERAL WITHOUT REQUIREMENT OF HUMID ATMOSPHERE OR ADDITIVES - Google Patents
SPECIAL HALIHYDRATES ALPHA AND BETA CALCIUM SULFATE, PROCEDURE OF OBTAINING FROM PLASTER MINERAL WITHOUT REQUIREMENT OF HUMID ATMOSPHERE OR ADDITIVESInfo
- Publication number
- CU20140111A7 CU20140111A7 CUP2014000111A CU20140111A CU20140111A7 CU 20140111 A7 CU20140111 A7 CU 20140111A7 CU P2014000111 A CUP2014000111 A CU P2014000111A CU 20140111 A CU20140111 A CU 20140111A CU 20140111 A7 CU20140111 A7 CU 20140111A7
- Authority
- CU
- Cuba
- Prior art keywords
- alpha
- additives
- obtaining
- special
- mineral
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title abstract 3
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 3
- 239000011707 mineral Substances 0.000 title abstract 3
- 239000000654 additive Substances 0.000 title abstract 2
- 239000011505 plaster Substances 0.000 title 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052925 anhydrite Inorganic materials 0.000 abstract 1
- 238000010411 cooking Methods 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Dental Preparations (AREA)
- Materials For Medical Uses (AREA)
Abstract
Esta invención se basa en la obtención de un hemidrato especial alfa que presenta un óptimo tiempo de fraguado, a partir de mineral de yeso (Ca SO4 . 2H2O) mediante un proceso de deshidratación de alrededor de un 15 % (p/p), para lo cual se realizan mezclas de porciones del mineral que posean una proporción adecuada de CaO, SO3, CaSO4 . 2H2O y H2O de cristalización hasta alcanzar una con una pureza del mineral >= 85 % y de contenido de SO3 >= 38 % y a continuación, se somete esta mezcla final a un proceso de cocción en paila a presión atmosférica a 145 º C ± 10 ºC para obtener el alfa sin requerir atmósfera húmeda ni la adición anterior o posterior de aditivos y de 155 ºC a 200 ºC para obtener el beta. La invención protege a los productos, así como a su procedimiento de obtención.This invention is based on obtaining a special alpha hemidrate that has an optimal setting time, from gypsum ore (Ca SO4. 2H2O) by means of a dehydration process of around 15% (w / w), for which are made mixtures of portions of the mineral that have an adequate proportion of CaO, SO3, CaSO4. 2H2O and H2O crystallization until one with a mineral purity> = 85% and SO3 content> = 38% is reached, and then this final mixture is subjected to a cooking process in the oven at atmospheric pressure at 145 º C ± 10 ° C to obtain the alpha without requiring a humid atmosphere or the previous or subsequent addition of additives and from 155 ° C to 200 ° C to obtain the beta. The invention protects the products, as well as their method of production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CUP2014000111A CU24264B1 (en) | 2014-09-15 | 2014-09-15 | PROCEDURE FOR OBTAINING ALFA AND BETA CALCIUM SULPHATE HEMIHYDRATES FROM PLASTER MINERAL WITHOUT REQUIREMENT OF HUMID ATMOSPHERE OR ADDITIVES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CUP2014000111A CU24264B1 (en) | 2014-09-15 | 2014-09-15 | PROCEDURE FOR OBTAINING ALFA AND BETA CALCIUM SULPHATE HEMIHYDRATES FROM PLASTER MINERAL WITHOUT REQUIREMENT OF HUMID ATMOSPHERE OR ADDITIVES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CU20140111A7 true CU20140111A7 (en) | 2016-04-25 |
| CU24264B1 CU24264B1 (en) | 2017-07-04 |
Family
ID=56131231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CUP2014000111A CU24264B1 (en) | 2014-09-15 | 2014-09-15 | PROCEDURE FOR OBTAINING ALFA AND BETA CALCIUM SULPHATE HEMIHYDRATES FROM PLASTER MINERAL WITHOUT REQUIREMENT OF HUMID ATMOSPHERE OR ADDITIVES |
Country Status (1)
| Country | Link |
|---|---|
| CU (1) | CU24264B1 (en) |
-
2014
- 2014-09-15 CU CUP2014000111A patent/CU24264B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CU24264B1 (en) | 2017-07-04 |
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