GB849511A - Improvements in the manufacture of microporous metallic tubes consisting mainly of nickel - Google Patents
Improvements in the manufacture of microporous metallic tubes consisting mainly of nickelInfo
- Publication number
- GB849511A GB849511A GB14102/58A GB1410258A GB849511A GB 849511 A GB849511 A GB 849511A GB 14102/58 A GB14102/58 A GB 14102/58A GB 1410258 A GB1410258 A GB 1410258A GB 849511 A GB849511 A GB 849511A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- nickel
- paste
- binder
- grains
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052759 nickel Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 4
- 239000011230 binding agent Substances 0.000 abstract 4
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 229910000480 nickel oxide Inorganic materials 0.000 abstract 2
- 238000005245 sintering Methods 0.000 abstract 2
- 229910000570 Cupronickel Inorganic materials 0.000 abstract 1
- 241000400624 Eucalyptus punctata Species 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 1
- 229920001615 Tragacanth Polymers 0.000 abstract 1
- 235000010443 alginic acid Nutrition 0.000 abstract 1
- 229920000615 alginic acid Polymers 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 150000002431 hydrogen Chemical class 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- HZPNKQREYVVATQ-UHFFFAOYSA-L nickel(2+);diformate Chemical compound [Ni+2].[O-]C=O.[O-]C=O HZPNKQREYVVATQ-UHFFFAOYSA-L 0.000 abstract 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical class [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/10—Separation by diffusion
- B01D59/12—Separation by diffusion by diffusion through barriers
- B01D59/14—Construction of the barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/022—Metals
- B01D71/0223—Group 8, 9 or 10 metals
- B01D71/02232—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Microporous tubes (pores of the order of 0.01 micron) are made by crushing a moist powder Ni or nickel oxides to remove agglomerates, coating the grains so formed with a binder volatile at 200 DEG -400 DEG C. (e.g. gum tragacanth, alginates), extending the paste then obtained into tube form, dehydrating (e.g. in acetone) and drying, and finally sintering these tubes. The grains may be formed by reduction of nickel formate or oxalate in hydrogen at 150-750 DEG C. During crushing, the grains are mixed with binder to form a paste and the paste is extruded several times to form vermicular threads, further binder being added between at least some of the extrusion operations to give a binder content of 2-10%. The paste is extruded to tube form and the tubes dehydrated, e.g. in a bath of acetone. Dried tubes are placed on smooth cylindrical supports, e.g. of nickel or cupro-nickel, coated with alumina to prevent sticking, the diameter of the supports being preferably slightly less than the internal diameter of the tubes to allow for shrinkage. The tubes are then placed in a muffle and introduced vertically into a sintering furnace and sintered at 500-900 DEG C. in hydrogen, inert gas or vacuo.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR737729 | 1957-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB849511A true GB849511A (en) | 1960-09-28 |
Family
ID=8704344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14102/58A Expired GB849511A (en) | 1957-05-03 | 1958-05-02 | Improvements in the manufacture of microporous metallic tubes consisting mainly of nickel |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE567214A (en) |
| CH (1) | CH382526A (en) |
| DE (1) | DE1205707B (en) |
| FR (1) | FR1174466A (en) |
| GB (1) | GB849511A (en) |
| NL (2) | NL109598C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3067421D1 (en) * | 1980-05-21 | 1984-05-17 | Sfec | Process for the production of a dry inorganic ultrafiltration membrane and membrane produced by such a method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB616839A (en) * | 1946-07-08 | 1949-01-27 | Sintered Products Ltd | Improvements in or relating to the manufacture of porous metal |
-
0
- NL NL227457D patent/NL227457A/xx unknown
- NL NL109598D patent/NL109598C/xx active
- BE BE567214D patent/BE567214A/xx unknown
-
1957
- 1957-05-03 FR FR1174466D patent/FR1174466A/en not_active Expired
-
1958
- 1958-04-28 CH CH5886458A patent/CH382526A/en unknown
- 1958-05-02 DE DEC16768A patent/DE1205707B/en active Pending
- 1958-05-02 GB GB14102/58A patent/GB849511A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH382526A (en) | 1964-09-30 |
| NL109598C (en) | |
| BE567214A (en) | |
| FR1174466A (en) | 1959-03-11 |
| NL227457A (en) | |
| DE1205707B (en) | 1965-11-25 |
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