FR1605524A - Thermostable, acid resistant cation exchanger prepn. - by precipitating Gp=IV metal oxide salts to form gel which is dried and heated - Google Patents
Thermostable, acid resistant cation exchanger prepn. - by precipitating Gp=IV metal oxide salts to form gel which is dried and heatedInfo
- Publication number
- FR1605524A FR1605524A FR69812072A FR69812072A FR1605524A FR 1605524 A FR1605524 A FR 1605524A FR 69812072 A FR69812072 A FR 69812072A FR 69812072 A FR69812072 A FR 69812072A FR 1605524 A FR1605524 A FR 1605524A
- Authority
- FR
- France
- Prior art keywords
- heated
- thermostable
- dried
- cation exchanger
- complexants
- Prior art date
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/09—Inorganic material
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Thermostable, and resistant cation exchangers are prepd. by (i) pptg. water-soluble salts of Gp. IV metal oxides in the presence of complexing salts and/or acids (opt. cooled) with solns. of anions which can form insoluble pptes. with the salified oxides so that the retarded pptn. is converted to an insoluble gel, (ii) stabilising the gel by extraction, and (iii) drying. The dried gel may be heated with extraction of the complexants or heated at high temp. without extraction of complexants which are thus carbonised or dehydrated inside the gels and deposited in the form of more or less active carbon. A structure of large surface area and high mechanical and chemical strength is obtd. The selectivity of the cation exchanger can also be adjusted by varying the complexants to give gels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR69812072A FR1605524A (en) | 1969-12-04 | 1969-12-04 | Thermostable, acid resistant cation exchanger prepn. - by precipitating Gp=IV metal oxide salts to form gel which is dried and heated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR69812072A FR1605524A (en) | 1969-12-04 | 1969-12-04 | Thermostable, acid resistant cation exchanger prepn. - by precipitating Gp=IV metal oxide salts to form gel which is dried and heated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1605524A true FR1605524A (en) | 1978-11-03 |
Family
ID=9695933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR69812072A Expired FR1605524A (en) | 1969-12-04 | 1969-12-04 | Thermostable, acid resistant cation exchanger prepn. - by precipitating Gp=IV metal oxide salts to form gel which is dried and heated |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1605524A (en) |
-
1969
- 1969-12-04 FR FR69812072A patent/FR1605524A/en not_active Expired
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