NL7812108A - Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze. - Google Patents

Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze. Download PDF

Info

Publication number: NL7812108A
Authority: NL; Netherlands
Prior art keywords: process according; recrystallization; sulfuric acid; calcium sulfate; weight
Prior art date: 1978-12-13

Application number

NL7812108A

Other languages

English (en)

Dutch (nl)

Original Assignee

Stamicarbon

Priority date (The priority date 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 date listed.)

1978-12-13

Filing date

1978-12-13

Publication date

1980-06-17

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19832060&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NL7812108(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1978-12-13 Application filed by Stamicarbon filed Critical Stamicarbon

1978-12-13 Priority to NL7812108A priority Critical patent/NL7812108A/nl

1979-12-12 Priority to DE7979200755T priority patent/DE2965549D1/de

1979-12-12 Priority to AT79200755T priority patent/ATE3529T1/de

1979-12-12 Priority to EP79200755A priority patent/EP0012488B1/de

1980-06-17 Publication of NL7812108A publication Critical patent/NL7812108A/nl

Links

238000000034 method Methods 0.000 title claims abstract description 24
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 title claims abstract description 17
238000004519 manufacturing process Methods 0.000 title abstract description 5
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 43
238000001953 recrystallisation Methods 0.000 claims abstract description 27
238000006243 chemical reaction Methods 0.000 claims abstract description 11
238000002360 preparation method Methods 0.000 claims abstract description 8
PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 7
150000001875 compounds Chemical class 0.000 claims abstract description 3
239000000203 mixture Substances 0.000 claims description 20
150000002736 metal compounds Chemical class 0.000 claims description 10
229910052751 metal Inorganic materials 0.000 claims description 9
239000002184 metal Substances 0.000 claims description 9
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
239000007791 liquid phase Substances 0.000 claims description 3
150000003839 salts Chemical class 0.000 claims description 3
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
238000011065 in-situ storage Methods 0.000 claims description 2
150000002611 lead compounds Chemical class 0.000 claims description 2
229910052726 zirconium Inorganic materials 0.000 claims description 2
239000002367 phosphate rock Substances 0.000 claims 2
239000002253 acid Substances 0.000 abstract description 11
239000001117 sulphuric acid Substances 0.000 abstract 2
235000011149 sulphuric acid Nutrition 0.000 abstract 2
OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 23
229910002651 NO3 Inorganic materials 0.000 description 5
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 5
229910019142 PO4 Inorganic materials 0.000 description 4
229910052925 anhydrite Inorganic materials 0.000 description 4
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
239000010452 phosphate Substances 0.000 description 4
238000009835 boiling Methods 0.000 description 3
235000011132 calcium sulphate Nutrition 0.000 description 3
239000013078 crystal Substances 0.000 description 3
230000029087 digestion Effects 0.000 description 3
229910052602 gypsum Inorganic materials 0.000 description 3
239000010440 gypsum Substances 0.000 description 3
239000000047 product Substances 0.000 description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
238000002441 X-ray diffraction Methods 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
239000006227 byproduct Substances 0.000 description 2
150000004683 dihydrates Chemical class 0.000 description 2
239000012535 impurity Substances 0.000 description 2
239000007788 liquid Substances 0.000 description 2
239000012265 solid product Substances 0.000 description 2
HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 2
OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 description 2
KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
229910052921 ammonium sulfate Inorganic materials 0.000 description 1
239000001166 ammonium sulphate Substances 0.000 description 1
235000011130 ammonium sulphate Nutrition 0.000 description 1
239000011230 binding agent Substances 0.000 description 1
239000001175 calcium sulphate Substances 0.000 description 1
238000005119 centrifugation Methods 0.000 description 1
238000001311 chemical methods and process Methods 0.000 description 1
238000010276 construction Methods 0.000 description 1
230000018044 dehydration Effects 0.000 description 1
238000006297 dehydration reaction Methods 0.000 description 1
238000010790 dilution Methods 0.000 description 1
239000012895 dilution Substances 0.000 description 1
239000012065 filter cake Substances 0.000 description 1
238000001914 filtration Methods 0.000 description 1
150000002222 fluorine compounds Chemical class 0.000 description 1
239000011521 glass Substances 0.000 description 1
239000002054 inoculum Substances 0.000 description 1
229910000372 mercury(II) sulfate Inorganic materials 0.000 description 1
239000002994 raw material Substances 0.000 description 1
230000008707 rearrangement Effects 0.000 description 1
150000003377 silicon compounds Chemical class 0.000 description 1
239000002002 slurry Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
239000000243 solution Substances 0.000 description 1
KKEOZWYTZSNYLJ-UHFFFAOYSA-O triazanium;nitrate;sulfate Chemical compound [NH4+].[NH4+].[NH4+].[O-][N+]([O-])=O.[O-]S([O-])(=O)=O KKEOZWYTZSNYLJ-UHFFFAOYSA-O 0.000 description 1
239000002699 waste material Substances 0.000 description 1
150000003755 zirconium compounds Chemical class 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/466—Conversion of one form of calcium sulfate to another
- 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

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Inorganic Chemistry (AREA)
Materials Engineering (AREA)
Structural Engineering (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Catalysts (AREA)

NL7812108A 1978-12-13 1978-12-13 Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze. NL7812108A (nl)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
NL7812108A NL7812108A (nl)	1978-12-13	1978-12-13	Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze.
DE7979200755T DE2965549D1 (en)	1978-12-13	1979-12-12	Process for the preparation of calcium sulphate hemihydrate and calcium sulphate hemihydrate obtained by this process
AT79200755T ATE3529T1 (de)	1978-12-13	1979-12-12	Verfahren zur herstellung von calciumsulfathalbhydrat und nach diesem verfahren erhaltenes calciumsulfat-halbhydrat.
EP79200755A EP0012488B1 (de)	1978-12-13	1979-12-12	Verfahren zur Herstellung von Calciumsulfat-Halbhydrat und nach diesem Verfahren erhaltenes Calciumsulfat-Halbhydrat

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL7812108		1978-12-13
NL7812108A NL7812108A (nl)	1978-12-13	1978-12-13	Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze.

Publications (1)

Publication Number	Publication Date
NL7812108A true NL7812108A (nl)	1980-06-17

Family

ID=19832060

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7812108A NL7812108A (nl)	1978-12-13	1978-12-13	Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze.

Country Status (4)

Country	Link
EP (1)	EP0012488B1 (de)
AT (1)	ATE3529T1 (de)
DE (1)	DE2965549D1 (de)
NL (1)	NL7812108A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0044005B1 (de) *	1980-07-14	1984-09-26	HIS Handels- und Industriebedarf GmbH	Herstellung von Gipshalbhydrat mit Wärmemüll, wässriger H2SO4 und schwefelsauren Salzen
SE8302590L (sv) *	1983-05-06	1984-11-07	Boliden Ab	Forfarande for framstellning av fibergips (i)
SE8302592L (sv) *	1983-05-06	1984-11-07	Boliden Ab	Forfarande for framstellning av fibergips (iii)
DE3605393C1 (en) *	1986-02-20	1987-09-03	Knauf Westdeutsche Gips	Process for the preparation of anhydrous calcium sulphate (anhydrite)
DE3714035A1 (de) *	1986-07-25	1988-11-24	Knauf Westdeutsche Gips	Verfahren zur herstellung von abbindefaehigen calciumsulfaten und ihre verwendung
CN102383179B (zh) *	2011-10-09	2015-09-09	昆明理工大学	一种工业废酸与磷石膏综合利用的方法
CN103074667B (zh) *	2013-01-30	2015-06-24	湘潭大学	一种重结晶制备硫酸钙晶须的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1571507A1 (de) *	1966-05-17	1970-12-17	Giulini Gmbh Geb	Verfahren zur Herstellung von alpha-Calciumsulfat-Halbhydrat aus synthetischem Calciumsulfat-Dihydrat
DE1592080A1 (de) *	1966-10-27	1970-09-10	Central Glass Co Ltd	Herstellungsverfahren fuer Gips von hoher Reinheit
GB1248037A (en) *	1968-01-13	1971-09-29	Fisons Ltd	Calcium sulphate

1978
- 1978-12-13 NL NL7812108A patent/NL7812108A/nl not_active Application Discontinuation
1979
- 1979-12-12 AT AT79200755T patent/ATE3529T1/de active
- 1979-12-12 DE DE7979200755T patent/DE2965549D1/de not_active Expired
- 1979-12-12 EP EP79200755A patent/EP0012488B1/de not_active Expired

Also Published As

Publication number	Publication date
DE2965549D1 (en)	1983-07-07
ATE3529T1 (de)	1983-06-15
EP0012488B1 (de)	1983-05-25
EP0012488A1 (de)	1980-06-25

Legal Events

Date	Code	Title	Description
1980-07-10	A1B	A search report has been drawn up
1983-08-01	BV	The patent application has lapsed

Publication	Publication Date	Title
DE2519122C2 (de)	1985-02-28	Verfahren zur Herstellung von &alpha;-Calciumsulfathalbhydrat
EP0027982B1 (de)	1982-06-23	Verfahren zur Herstellung von 3-Amino-1-hydroxypropan-1,1-diphosphonsäure
EP0012487B1 (de)	1982-05-05	Verfahren zur Herstellung von Calciumsulfat-Anhydrit und nach diesem Verfahren erhaltenes Calciumsulfat-Anhydrit
NL7812108A (nl)	1980-06-17	Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze.
DE2625248C2 (de)	1987-03-26	Verfahren zum Aufarbeiten von Soleschlamm
DE2753868C3 (de)	1980-09-11	Verfahren zur Reinigung von Gips enthaltendem Natriumhexafluorosilikat
SU1223838A3 (ru)	1986-04-07	Способ получени фосфорной кислоты
EP2291361B1 (de)	2013-04-03	Verfahren zur herstellung des trinatriumsalzes des 2, 4, 6-trimercapto-s-triazins
KR870001377B1 (ko)	1987-07-24	인산염암으로부터 인산과 황산칼슘을 제조하는 공정(Phosphoanhydrite Process)
DE1947643B2 (de)	1979-11-15	Verfahren zur Herstellung von Kaliumdihydrogenphosphat
CN1144192A (zh)	1997-03-05	硝酸钾生产工艺
EP0618912B1 (de)	1996-11-20	Verfahren zur herstellung eines weitgehend staubfreien tetrahydro-3,5-dimethyl-1,3,5-thiadiazin-2-thion granulats
CA1045340A (en)	1979-01-02	Process for the manufacture of stabilised, hardenable calcium sulphate by reacting crude phosphate with sulphuric acid
EP0004670A1 (de)	1979-10-17	Verfahren zur kontinuierlichen Herstellung von Aluminiumfluorid
EP0134934B1 (de)	1987-03-04	2-Ketosulfonamide und Verfahren zu deren Herstellung
DE3101459A1 (de)	1981-12-24	Verfahren zur herstellung neuer peroxyester und neue peroxyester
SE431234B (sv)	1984-01-23	Forfarande for framstellning av oorganiska fibrer pa basis av kalciumsulfat
Hoglan et al.	1939	Inactive inositol and its derivatives preparation and properties
DE69224045T2 (de)	1998-05-07	Verfahren zur Herstellung von Alkylensulfide
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US20230249978A1 (en)	2023-08-10	Scalable Method for Preparing Crystalline Borosulfate Materials
DE3135728C2 (de)	1994-09-22	Verfahren zur Herstellung von Apovincaminsäureestern
RU2094365C1 (ru)	1997-10-27	Способ получения фосфорной кислоты
SU1673510A1 (ru)	1991-08-30	Способ получени фосфорной кислоты
NL7904234A (nl)	1980-12-02	Werkwijze voor het bereiden van calciumsulfaathemihy- draat.