DE3900732C1 - - Google Patents

Info

Publication number: DE3900732C1
Authority: DE; Germany
Prior art keywords: filter cake; mixed; product; powdered; zirconium fluoride
Prior art date: 1989-01-12
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

DE3900732A

Other languages

German (de)

English (en)

Inventor

Horst Seidel

Eberhard Dr. 6000 Frankfurt De Anschuetz

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.)

GEA Group AG

Original Assignee

Metallgesellschaft 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.)

1989-01-12

Filing date

1989-01-12

Publication date

1989-12-21

1989-01-12 Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG

1989-01-12 Priority to DE3900732A priority Critical patent/DE3900732C1/de

1989-10-19 Priority to FR898913690A priority patent/FR2641484B3/fr

1989-11-08 Priority to GB8925230A priority patent/GB2227012B/en

1989-12-21 Application granted granted Critical

1989-12-21 Publication of DE3900732C1 publication Critical patent/DE3900732C1/de

Status Expired legal-status Critical Current

Links

239000012065 filter cake Substances 0.000 claims abstract description 14
-1 sodium zirconium fluoride salts Chemical class 0.000 claims abstract description 7
230000008929 regeneration Effects 0.000 claims abstract description 3
238000011069 regeneration method Methods 0.000 claims abstract description 3
239000000047 product Substances 0.000 claims description 10
238000005554 pickling Methods 0.000 claims description 6
238000000034 method Methods 0.000 claims description 5
239000000463 material Substances 0.000 abstract description 2
AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
235000011116 calcium hydroxide Nutrition 0.000 abstract 1
239000000920 calcium hydroxide Substances 0.000 abstract 1
230000007935 neutral effect Effects 0.000 abstract 1
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
229910052726 zirconium Inorganic materials 0.000 description 4
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
238000005406 washing Methods 0.000 description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
230000002378 acidificating effect Effects 0.000 description 2
238000006243 chemical reaction Methods 0.000 description 2
239000000203 mixture Substances 0.000 description 2
238000006386 neutralization reaction Methods 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
230000009974 thixotropic effect Effects 0.000 description 2
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
229910001093 Zr alloy Inorganic materials 0.000 description 1
239000011324 bead Substances 0.000 description 1
239000000706 filtrate Substances 0.000 description 1
239000004571 lime Substances 0.000 description 1
239000008267 milk Substances 0.000 description 1
210000004080 milk Anatomy 0.000 description 1
235000013336 milk Nutrition 0.000 description 1
230000001376 precipitating effect Effects 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
239000010865 sewage Substances 0.000 description 1
159000000000 sodium salts Chemical class 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/006—Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Environmental & Geological Engineering (AREA)
Inorganic Chemistry (AREA)
Processing Of Solid Wastes (AREA)
Detergent Compositions (AREA)
Filtration Of Liquid (AREA)

DE3900732A 1989-01-12 1989-01-12 Expired DE3900732C1 (fr)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
DE3900732A DE3900732C1 (fr)	1989-01-12	1989-01-12
FR898913690A FR2641484B3 (fr)	1989-01-12	1989-10-19	Procede de purification de fluosels de sodium et de zirconium humides
GB8925230A GB2227012B (en)	1989-01-12	1989-11-08	Process for the disposal of moist sodium zircon fluorine salts

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE3900732A DE3900732C1 (fr)	1989-01-12	1989-01-12

Publications (1)

Publication Number	Publication Date
DE3900732C1 true DE3900732C1 (fr)	1989-12-21

Family

ID=6371947

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE3900732A Expired DE3900732C1 (fr)	1989-01-12	1989-01-12

Country Status (3)

Country	Link
DE (1)	DE3900732C1 (fr)
FR (1)	FR2641484B3 (fr)
GB (1)	GB2227012B (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3626448A1 (de) *	1986-08-05	1988-02-11	Hoechst Ag	Verfahren zur aufarbeitung von waessrigen kieselfluorwasserstoffsaeureloesungen

1989
- 1989-01-12 DE DE3900732A patent/DE3900732C1/de not_active Expired
- 1989-10-19 FR FR898913690A patent/FR2641484B3/fr not_active Expired - Lifetime
- 1989-11-08 GB GB8925230A patent/GB2227012B/en not_active Expired - Lifetime

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3626448A1 (de) *	1986-08-05	1988-02-11	Hoechst Ag	Verfahren zur aufarbeitung von waessrigen kieselfluorwasserstoffsaeureloesungen

Also Published As

Publication number	Publication date
FR2641484B3 (fr)	1991-03-29
GB2227012A (en)	1990-07-18
GB2227012B (en)	1992-05-20
GB8925230D0 (en)	1989-12-28
FR2641484A1 (fr)	1990-07-13

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Legal Events

Date	Code	Title
1989-12-21	8100	Publication of the examined application without publication of unexamined application
1989-12-21	D1	Grant (no unexamined application published) patent law 81
1990-06-13	8364	No opposition during term of opposition
1994-03-31	8330	Complete disclaimer