GB2032901B - Purifying and/or bleaching calcium sulphate - Google Patents

Purifying and/or bleaching calcium sulphate

Info

Publication number: GB2032901B
Authority: GB; United Kingdom
Prior art keywords: bleaching; purifying; calcium sulphate; sulphate; calcium
Prior art date: 1978-10-30
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.): Expired

Application number

GB7934187A

Other versions

GB2032901A (en

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Supra AB

Original Assignee

Supra AB

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.)

1978-10-30

Filing date

1979-10-02

Publication date

1982-11-03

1979-10-02 Application filed by Supra AB filed Critical Supra AB

1980-05-14 Publication of GB2032901A publication Critical patent/GB2032901A/en

1982-11-03 Application granted granted Critical

1982-11-03 Publication of GB2032901B publication Critical patent/GB2032901B/en

Status Expired legal-status Critical Current

Classifications

- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/025—Calcium sulfates
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Pigments, Carbon Blacks, Or Wood Stains (AREA)
Paper (AREA)
Compositions Of Macromolecular Compounds (AREA)
Detergent Compositions (AREA)

GB7934187A 1978-10-30 1979-10-02 Purifying and/or bleaching calcium sulphate Expired GB2032901B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE7811216A SE417104B (en)	1978-10-30	1978-10-30	SET TO CLEAN RESPECTIVE PINK POLLUTANED CALCIUM SULPHATE INTENDED TO BE USED AS PIGMENT AND / OR FILLER

Publications (2)

Publication Number	Publication Date
GB2032901A GB2032901A (en)	1980-05-14
GB2032901B true GB2032901B (en)	1982-11-03

Family

ID=20336216

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7934187A Expired GB2032901B (en)	1978-10-30	1979-10-02	Purifying and/or bleaching calcium sulphate

Country Status (10)

Country	Link
JP (1)	JPS5835937B2 (en)
CA (1)	CA1125456A (en)
DE (1)	DE2943205A1 (en)
ES (1)	ES485483A0 (en)
FI (1)	FI66416B (en)
FR (1)	FR2440386A1 (en)
GB (1)	GB2032901B (en)
IT (1)	IT1128747B (en)
NL (1)	NL7907976A (en)
SE (1)	SE417104B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE441457C (en)	1978-10-30	1990-06-18	Supra Ab	MAKE SUBSTITUTE SLAM FOR PREPARING FOR PAPER, CARTON AND LIKE, CONTAINING CALCIUM SULPHATE AS PIGMENT
FR2446256A1 (en) *	1979-01-12	1980-08-08	Azote & Prod Chim	CHEMICAL GYPSUM PURIFICATION PROCESS
SE469475B (en) *	1990-10-29	1993-07-12	Eka Nobel Ab	SAVED TO Pale Particles Containing Calcium Carbonate
BE1005164A3 (en) *	1991-08-02	1993-05-11	Prayon Rupel Technologies	Method for preparing a suspension aqueous calcium sulphate base.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE432675C (en) *	1924-12-25	1926-08-07	Hansa Phosphat U Mineral Muehl	Process for cleaning and bleaching barite
DE485007C (en) *	1926-04-04	1929-10-25	Ludwig Kaiser	Process for the production of pure white and finely divided barium or calcium sulfate
DE491350C (en) *	1926-12-11	1930-02-08	Ludwig Kaiser	Process for the production of pure, white and finely divided barium or calcium sulfate
DE537392C (en) *	1928-02-10	1931-11-02	Sachtleben Akt Ges Fuer Bergba	Process for the production of a white, transparent, pure barite
DE586007C (en) *	1928-06-14	1933-10-14	Peter Spence & Sons Ltd	Process for the production of finely divided and anhydrous calcium sulphate as paint
GB339797A (en) *	1928-12-18	1930-12-18	Rene Perdu
US2197003A (en) *	1937-11-18	1940-04-16	Glidden Co	Process for making pigments
US2522971A (en) *	1947-04-19	1950-09-19	C K William & Co	Method of bleaching barytes
DE1467470C2 (en) *	1963-10-28	1974-06-12	Pluess-Staufer Ag, Oftringen, Aargau (Schweiz)	Improvement of the whiteness of chalk, calcite or dolomite
GB1394910A (en) *	1972-10-23	1975-05-21	Pluss Stauffer Ag	Process for the optical brightening of minerals
JPS5147598A (en) *	1974-10-23	1976-04-23	Denki Kagaku Kogyo Kk	Tansankarushiumuno hakushokudokairyoho

1978
- 1978-10-30 SE SE7811216A patent/SE417104B/en not_active IP Right Cessation
1979
- 1979-10-02 GB GB7934187A patent/GB2032901B/en not_active Expired
- 1979-10-10 IT IT50519/79A patent/IT1128747B/en active
- 1979-10-11 FI FI793163A patent/FI66416B/en not_active Application Discontinuation
- 1979-10-23 JP JP54136960A patent/JPS5835937B2/en not_active Expired
- 1979-10-25 DE DE19792943205 patent/DE2943205A1/en not_active Ceased
- 1979-10-29 CA CA338,625A patent/CA1125456A/en not_active Expired
- 1979-10-29 ES ES485483A patent/ES485483A0/en active Granted
- 1979-10-29 FR FR7926726A patent/FR2440386A1/en active Granted
- 1979-10-30 NL NL7907976A patent/NL7907976A/en not_active Application Discontinuation

Also Published As

Publication number	Publication date
ES8102059A1 (en)	1980-12-16
FI66416B (en)	1984-06-29
SE7811216L (en)	1980-05-01
JPS5835937B2 (en)	1983-08-05
CA1125456A (en)	1982-06-15
NL7907976A (en)	1980-05-02
ES485483A0 (en)	1980-12-16
SE417104B (en)	1981-02-23
IT7950519A0 (en)	1979-10-10
JPS5560024A (en)	1980-05-06
FR2440386A1 (en)	1980-05-30
FI793163A7 (en)	1980-05-01
GB2032901A (en)	1980-05-14
IT1128747B (en)	1986-06-04
FR2440386B1 (en)	1983-07-08
DE2943205A1 (en)	1980-05-08

Publication	Publication Date	Title
EG14076A (en)	1983-12-31	6-n-propyl 1-8-methoxymethyl or methylmercaptomethylergolines and related compounds
GB2023561B (en)	1982-07-07	Calcium carbonate
GB2033368B (en)	1982-09-08	Treatment of waste
GB2009124B (en)	1982-10-20	Fibrous calcium sulphate
JPS5478856A (en)	1979-06-23	Solid particles containing calcium peroxide and utilization thereof for water treatment
JPS5542697A (en)	1980-03-26	Blood purifier
JPS5551072A (en)	1980-04-14	44phenyll1*33benzodiazepin and its manufacture
JPS5523196A (en)	1980-02-19	Calcium lake having highly
AU517883B2 (en)	1981-09-03	Purifying effluent and obtaining calcium sulphate therefrom
JPS54133538A (en)	1979-10-17	Calcium carbonate for sealinggfiller and composition thereof
JPS54131599A (en)	1979-10-12	Alumina composite calcium carbonate and its manufacture
JPS5775142A (en)	1982-05-11	Improved claus catalyst and its manufacture
GB2032901B (en)	1982-11-03	Purifying and/or bleaching calcium sulphate
JPS5553231A (en)	1980-04-18	22propyllpentoo44enee11al* and its manufacture
GB2086874B (en)	1985-09-04	Calcining calcium sulphate dihydrate
JPS5540662A (en)	1980-03-22	Hydrocortisonee17*211diester and its manufacture
JPS54160428A (en)	1979-12-19	Calcium silicate formed body
GB2035980B (en)	1982-11-17	Purifying waste gases containing nitrous gases
GB1545788A (en)	1979-05-16	Manufacture of calcium sulphate
JPS54111000A (en)	1979-08-30	Porous calcium carbonate and its manufacture
JPS5549373A (en)	1980-04-09	33chloroo33methyllbutanee or 33methyll22butenee1*44diaryllbisacetal and its manufacture
JPS54135692A (en)	1979-10-22	Ozonizer
GB8329944D0 (en)	1983-12-14	Calcining calcium sulphate dihydrate
ZA817558B (en)	1983-02-23	Improvements in calcining calcium sulphate dihydrate
GB2027420B (en)	1983-05-05	A and other biological sewage treatment

Legal Events

Date	Code	Title	Description
1988-05-25	PCNP	Patent ceased through non-payment of renewal fee