SE7714259L - Sett for rening av vatframstelld fosforsyra - Google Patents

Sett for rening av vatframstelld fosforsyra

Info

Publication number: SE7714259L
Authority: SE; Sweden
Prior art keywords: phosphoric acid; water; solvent; organic; decontaminated
Prior art date: 1976-12-17

Application number

SE7714259A

Other languages

English (en)

Other versions

SE429752B (sv

Inventor

K-P Ehlers

W Scheibitz

K Schroedter

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.)

1976-12-17

Filing date

1977-12-15

Publication date

1978-06-18

1977-12-15 Application filed by Hoechst Ag filed Critical Hoechst Ag

1978-06-18 Publication of SE7714259L publication Critical patent/SE7714259L/sv

1983-09-26 Publication of SE429752B publication Critical patent/SE429752B/sv

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

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Extraction Or Liquid Replacement (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

SE7714259A 1976-12-17 1977-12-15 Sett for rening av vatframstelld fosforsyra SE429752B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2657190A DE2657190C2 (de)	1976-12-17	1976-12-17	Verfahren zur Reinigung von Naßverfahrensphosphorsäure

Publications (2)

Publication Number	Publication Date
SE7714259L true SE7714259L (sv)	1978-06-18
SE429752B SE429752B (sv)	1983-09-26

Family

ID=5995770

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7714259A SE429752B (sv)	1976-12-17	1977-12-15	Sett for rening av vatframstelld fosforsyra

Country Status (23)

Country	Link
US (1)	US4200620A (sv)
JP (1)	JPS5383993A (sv)
AT (1)	AT354978B (sv)
BE (1)	BE861920A (sv)
BR (1)	BR7708375A (sv)
CA (1)	CA1084238A (sv)
CH (1)	CH631418A5 (sv)
DD (1)	DD136258A5 (sv)
DE (1)	DE2657190C2 (sv)
DK (1)	DK149229C (sv)
ES (1)	ES463603A1 (sv)
FI (1)	FI65610C (sv)
FR (1)	FR2374263A1 (sv)
GB (1)	GB1554379A (sv)
IL (1)	IL53618A0 (sv)
IT (1)	IT1090568B (sv)
MX (1)	MX146999A (sv)
NL (1)	NL184945C (sv)
PH (1)	PH14335A (sv)
SE (1)	SE429752B (sv)
SU (1)	SU888812A3 (sv)
TR (1)	TR19331A (sv)
ZA (1)	ZA777470B (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4197280A (en) *	1978-10-02	1980-04-08	Stauffer Chemical Company	Wet process phosphoric acid purification
DE2909572A1 (de) *	1979-03-12	1980-09-25	Hoechst Ag	Verfahren zur ueberfuehrung von extraktionsrueckstaenden aus der phosphorsaeurereinigung in feste deponieprodukte
DE2926943A1 (de) *	1979-07-04	1981-01-29	Hoechst Ag	Verfahren zur reinigung von nassverfahrensphosphorsaeure
US4751066A (en) *	1986-05-08	1988-06-14	Fmc Corporation	Process for preparing alkali metal phosphate
GB9124353D0 (en) *	1991-11-15	1992-01-08	Albright & Wilson	Immobilisation of metal contaminants from a liquid to a solid metal
IL211043A0 (en) *	2010-02-06	2011-04-28	Aharon Eyal	A method for the separation of a non-volatile strong acid from a salt thereof and compositions produced thereby
WO2014114996A1 (en) *	2013-01-28	2014-07-31	Aharon Eyal	Methods and systems for water recovery
CN114031057B (zh) *	2021-12-17	2022-06-21	四川大学	湿法磷酸生产工业磷酸及联产聚磷酸铵或固体磷酸的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE884358C (de) *	1951-09-20	1953-07-27	Gerardo Collardin	Verfahren zur Reinigung von technischer Phosphorsaeure
BE757550A (fr) *	1969-10-16	1971-03-16	Giulini Gmbh Geb	Procede de preparation de phosphates purs a partir d'acides phosphoriques impurs
FR2093372A5 (en) *	1970-06-12	1972-01-28	Azote & Prod Chim	Purification of wet-process phosphoric acid - by extraction - with part water-misc organic solvent
US3956465A (en) *	1970-06-12	1976-05-11	Azote Et Produits Chimiques S.A.	Solvent purification of wet process phosphoric acid
SE366972B (sv) *	1970-06-12	1974-05-13	Azote & Prod Chim
FR2128968A6 (en) *	1971-03-10	1972-10-27	Azote & Prod Chim	Purification of wet-process phosphoric acid - by extraction - with part water-misc organic solvent
DE2029564C3 (de) *	1970-06-16	1978-06-22	Giulini Chemie Gmbh, 6700 Ludwigshafen	Verfahren zur Herstellung von reinen Alkaliphosphaten aus Rohphosphorsäure
US3684439A (en) *	1970-09-22	1972-08-15	Monsanto Co	Handling of raffinates from wet phosphoric acid purification
DE2321751C3 (de) *	1973-04-30	1981-11-19	Hoechst Ag, 6000 Frankfurt	Verfahren zur Reinigung von Naßphosphorsäure
DE2605106C2 (de) *	1976-02-10	1984-06-14	Hoechst Ag, 6230 Frankfurt	Verfahren und Vorrichtung zur Herstellung von alkoholischen Phosphorsäurelösungen aus sauren Phosphaten

1976
- 1976-12-17 DE DE2657190A patent/DE2657190C2/de not_active Expired
1977
- 1977-09-13 CH CH1116477A patent/CH631418A5/de not_active IP Right Cessation
- 1977-10-27 ES ES463603A patent/ES463603A1/es not_active Expired
- 1977-11-30 SU SU772547802A patent/SU888812A3/ru active
- 1977-12-08 NL NLAANVRAGE7713608,A patent/NL184945C/xx not_active IP Right Cessation
- 1977-12-09 GB GB51348/77A patent/GB1554379A/en not_active Expired
- 1977-12-12 US US05/859,879 patent/US4200620A/en not_active Expired - Lifetime
- 1977-12-13 TR TR19331A patent/TR19331A/xx unknown
- 1977-12-14 PH PH20552A patent/PH14335A/en unknown
- 1977-12-14 IT IT52200/77A patent/IT1090568B/it active
- 1977-12-15 DD DD77202670A patent/DD136258A5/xx unknown
- 1977-12-15 IL IL53618A patent/IL53618A0/xx not_active IP Right Cessation
- 1977-12-15 AT AT898277A patent/AT354978B/de active
- 1977-12-15 ZA ZA00777470A patent/ZA777470B/xx unknown
- 1977-12-15 MX MX171732A patent/MX146999A/es unknown
- 1977-12-15 FI FI773803A patent/FI65610C/fi not_active IP Right Cessation
- 1977-12-15 SE SE7714259A patent/SE429752B/sv not_active IP Right Cessation
- 1977-12-16 BR BR7708375A patent/BR7708375A/pt unknown
- 1977-12-16 JP JP15231677A patent/JPS5383993A/ja active Granted
- 1977-12-16 FR FR7738057A patent/FR2374263A1/fr active Granted
- 1977-12-16 CA CA293,219A patent/CA1084238A/en not_active Expired
- 1977-12-16 DK DK562677A patent/DK149229C/da not_active IP Right Cessation
- 1977-12-16 BE BE183509A patent/BE861920A/xx not_active IP Right Cessation

Also Published As

Publication number	Publication date
DK149229C (da)	1986-08-18
BR7708375A (pt)	1978-08-08
ES463603A1 (es)	1978-07-16
FI773803A (fi)	1978-06-18
PH14335A (en)	1981-05-29
BE861920A (fr)	1978-06-16
DE2657190A1 (de)	1978-06-22
AT354978B (de)	1980-02-11
DK562677A (da)	1978-06-18
IL53618A0 (en)	1978-03-10
TR19331A (tr)	1978-12-07
CA1084238A (en)	1980-08-26
DE2657190C2 (de)	1982-11-04
DK149229B (da)	1986-03-24
NL184945C (nl)	1989-12-18
IT1090568B (it)	1985-06-26
FR2374263B1 (sv)	1982-10-08
FI65610C (fi)	1984-06-11
NL184945B (nl)	1989-07-17
FI65610B (fi)	1984-02-29
ATA898277A (de)	1979-07-15
GB1554379A (en)	1979-10-17
ZA777470B (en)	1978-11-29
MX146999A (es)	1982-09-22
US4200620A (en)	1980-04-29
CH631418A5 (de)	1982-08-13
JPS5383993A (en)	1978-07-24
JPS5734203B2 (sv)	1982-07-21
SU888812A3 (ru)	1981-12-07
SE429752B (sv)	1983-09-26
DD136258A5 (de)	1979-06-27
NL7713608A (nl)	1978-06-20
FR2374263A1 (fr)	1978-07-13

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Legal Events

Date	Code	Title	Description
1995-01-31	NUG	Patent has lapsed	Ref document number: 7714259-4 Effective date: 19930709 Format of ref document f/p: F

Date

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Title

Description

1995-01-31

NUG

Patent has lapsed

Ref document number: 7714259-4

Effective date: 19930709

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