SE401668B - PROCEDURE AND PLANT FOR PURIFICATION OF RAW, ON VATA ROAD PRODUCED PHOSPHORIC ACID - Google Patents

PROCEDURE AND PLANT FOR PURIFICATION OF RAW, ON VATA ROAD PRODUCED PHOSPHORIC ACID

Info

Publication number: SE401668B
Authority: SE; Sweden
Prior art keywords: vata; purification; plant; raw; procedure
Prior art date: 1974-10-04

Application number

SE7511066A

Other languages

Swedish (sv)

Other versions

SE7511066L (en

Inventor

K P Ehlers

G Heymer

Original Assignee

Hoechst Ag

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.)

1974-10-04

Filing date

1975-10-02

Publication date

1978-05-22

1975-10-02 Application filed by Hoechst Ag filed Critical Hoechst Ag

1976-04-05 Publication of SE7511066L publication Critical patent/SE7511066L/en

1978-05-22 Publication of SE401668B publication Critical patent/SE401668B/en

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
- C01B25/237—Selective elimination of impurities

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Removal Of Specific Substances (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Processing Of Solid Wastes (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

SE7511066A 1974-10-04 1975-10-02 PROCEDURE AND PLANT FOR PURIFICATION OF RAW, ON VATA ROAD PRODUCED PHOSPHORIC ACID SE401668B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2447390A DE2447390C3 (en)	1974-10-04	1974-10-04	Process for purifying wet phosphoric acid

Publications (2)

Publication Number	Publication Date
SE7511066L SE7511066L (en)	1976-04-05
SE401668B true SE401668B (en)	1978-05-22

Family

ID=5927552

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7511066A SE401668B (en)	1974-10-04	1975-10-02	PROCEDURE AND PLANT FOR PURIFICATION OF RAW, ON VATA ROAD PRODUCED PHOSPHORIC ACID

Country Status (21)

Country	Link
JP (1)	JPS5163394A (en)
AT (1)	AT358525B (en)
BE (1)	BE834003A (en)
BR (1)	BR7506423A (en)
CA (1)	CA1045339A (en)
CH (1)	CH599900A5 (en)
DD (1)	DD120417A5 (en)
DE (1)	DE2447390C3 (en)
DK (1)	DK137229C (en)
EG (1)	EG11849A (en)
ES (1)	ES441121A1 (en)
FI (1)	FI752749A (en)
FR (1)	FR2286790A1 (en)
GB (1)	GB1524552A (en)
IL (1)	IL48236A (en)
IT (1)	IT1047666B (en)
NL (1)	NL170839C (en)
SE (1)	SE401668B (en)
SU (1)	SU671716A3 (en)
TR (1)	TR19680A (en)
ZA (1)	ZA755820B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1980002418A1 (en) *	1979-05-10	1980-11-13	Boliden Ab	A method of purifying phosphoric acid of heavy metals

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2447347A1 (en) *	1979-01-24	1980-08-22	Rhone Poulenc Ind	PROCESS FOR THE TREATMENT OF AN IMPURE PHOSPHORIC ACID
DE3134847A1 (en) *	1981-09-03	1983-03-17	Hoechst Ag, 6000 Frankfurt	"METHOD FOR PRODUCING CADMIUM-FREE RAW PHOSPHORIC ACID"
DE3202659A1 (en) *	1982-01-28	1983-08-04	Hoechst Ag, 6230 Frankfurt	METHOD FOR PURIFYING WET METHOD PHOSPHORIC ACID
DE3360853D1 (en) *	1982-02-12	1985-10-31	Hoechst Ag	Process for the reduction of the heavy metal content in raw phosphate
IL69100A (en) *	1982-07-21	1986-11-30	Hoechst Ag	Process for removing heavy metal ions and arsenic from wet-processed phosphoric acid
DE3325862A1 (en) *	1983-07-18	1985-01-31	Hoechst Ag, 6230 Frankfurt	METHOD AND DEVICE FOR REMOVING ORGANIC IMPURITIES FROM WET PROCESS PHOSPHORIC ACID
DE19703884C2 (en) *	1997-02-03	1999-04-29	Bk Giulini Chem Gmbh & Co Ohg	Process for purifying wet process phosphoric acid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1472520A (en) *	1966-03-23	1967-03-10	Marchon Products Ltd	Phosphoric acid desulfation process

1974
- 1974-10-04 DE DE2447390A patent/DE2447390C3/en not_active Expired
1975
- 1975-09-09 GB GB37054/75A patent/GB1524552A/en not_active Expired
- 1975-09-12 ZA ZA00755820A patent/ZA755820B/en unknown
- 1975-09-18 CA CA235,803A patent/CA1045339A/en not_active Expired
- 1975-09-19 ES ES441121A patent/ES441121A1/en not_active Expired
- 1975-09-22 TR TR19680A patent/TR19680A/en unknown
- 1975-09-27 EG EG573/75A patent/EG11849A/en active
- 1975-09-30 BE BE160530A patent/BE834003A/en not_active IP Right Cessation
- 1975-10-01 NL NLAANVRAGE7511568,A patent/NL170839C/en not_active IP Right Cessation
- 1975-10-01 FI FI752749A patent/FI752749A/fi not_active Application Discontinuation
- 1975-10-02 BR BR7506423*A patent/BR7506423A/en unknown
- 1975-10-02 DD DD188691A patent/DD120417A5/xx unknown
- 1975-10-02 AT AT753175A patent/AT358525B/en not_active IP Right Cessation
- 1975-10-02 SU SU752176256A patent/SU671716A3/en active
- 1975-10-02 SE SE7511066A patent/SE401668B/en not_active IP Right Cessation
- 1975-10-02 IT IT51611/75A patent/IT1047666B/en active
- 1975-10-03 FR FR7530417A patent/FR2286790A1/en active Granted
- 1975-10-03 DK DK447575A patent/DK137229C/en not_active IP Right Cessation
- 1975-10-03 CH CH1287775A patent/CH599900A5/xx not_active IP Right Cessation
- 1975-10-03 IL IL48236A patent/IL48236A/en unknown
- 1975-10-03 JP JP50119685A patent/JPS5163394A/en active Granted

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1980002418A1 (en) *	1979-05-10	1980-11-13	Boliden Ab	A method of purifying phosphoric acid of heavy metals
US4378340A (en)	1979-05-10	1983-03-29	Boliden Aktiebolag	Method of purifying phosphoric acid of heavy metals

Also Published As

Publication number	Publication date
EG11849A (en)	1978-06-30
DE2447390B2 (en)	1977-10-20
JPS537319B2 (en)	1978-03-16
DE2447390A1 (en)	1976-04-08
IL48236A (en)	1978-04-30
BE834003A (en)	1976-03-30
FI752749A (en)	1976-04-05
AT358525B (en)	1980-09-10
FR2286790A1 (en)	1976-04-30
SU671716A3 (en)	1979-06-30
DD120417A5 (en)	1976-06-12
SE7511066L (en)	1976-04-05
BR7506423A (en)	1976-08-10
ES441121A1 (en)	1977-03-16
TR19680A (en)	1979-10-05
GB1524552A (en)	1978-09-13
IL48236A0 (en)	1975-12-31
NL170839B (en)	1982-08-02
DK137229C (en)	1978-07-10
JPS5163394A (en)	1976-06-01
IT1047666B (en)	1980-10-20
DE2447390C3 (en)	1983-11-17
ZA755820B (en)	1976-08-25
NL170839C (en)	1983-01-03
DK447575A (en)	1976-04-05
ATA753175A (en)	1980-02-15
CA1045339A (en)	1979-01-02
NL7511568A (en)	1976-04-06
FR2286790B1 (en)	1979-10-12
DK137229B (en)	1978-02-06
CH599900A5 (en)	1978-06-15

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Legal Events

Date	Code	Title	Description
1995-01-31	NUG	Patent has lapsed	Ref document number: 7511066-8 Effective date: 19940510 Format of ref document f/p: F

Date

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1995-01-31

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Effective date: 19940510

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