RO93111B1 - Process for preparing non-polar ferrofluids - Google Patents
Process for preparing non-polar ferrofluidsInfo
- Publication number
- RO93111B1 RO93111B1 RO123357A RO12335786A RO93111B1 RO 93111 B1 RO93111 B1 RO 93111B1 RO 123357 A RO123357 A RO 123357A RO 12335786 A RO12335786 A RO 12335786A RO 93111 B1 RO93111 B1 RO 93111B1
- Authority
- RO
- Romania
- Prior art keywords
- polar
- ferrofluids
- precipitation
- preparing non
- ferro
- Prior art date
Links
- 239000011554 ferrofluid Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 abstract 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 abstract 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 abstract 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 239000005642 Oleic acid Substances 0.000 abstract 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 239000000908 ammonium hydroxide Substances 0.000 abstract 1
- 238000009388 chemical precipitation Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Colloid Chemistry (AREA)
Abstract
Inventia reprezinta un procedeu de obtinere a ferofluidelor nepolare obtinute prin precipitarea chimica a unui amestec de saruri feroferite cu hidroxid de amoniu în exces, urmata de dispersarea particulelor magnetizabile cu ajutorul unui agent activ de suprafata cum ar fi acidul oleic, precipitarea avînd loc în prezenta unui agent de crestere a vîscozitatii solutiei de precipitare, care conduce la obtinerea unor dimensiuni uniforme ale particulelor în suspensie. în acest scop se utilizeaza fie etilen glicol, glicerina, fie polietilen glicol într-un spectru larg de concentratie (1-40g/l) si temperatura (10...80 degree C).The invention is a process for obtaining non-polar ferrofluids obtained by the chemical precipitation of a mixture of ferro-ferrous salts with excess ammonium hydroxide followed by the dispersion of the magnetizable particles with a surface-active agent such as oleic acid, the precipitation occurring in the presence of viscosity-increasing agent of the precipitation solution, which results in uniform particle sizes in suspension. For this purpose either ethylene glycol, glycerol or polyethylene glycol is used in a wide range of concentration (1-40 g / l) and temperature (10 ... 80 ° C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO123357A RO93111B1 (en) | 1986-05-19 | 1986-05-19 | Process for preparing non-polar ferrofluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO123357A RO93111B1 (en) | 1986-05-19 | 1986-05-19 | Process for preparing non-polar ferrofluids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO93111A2 RO93111A2 (en) | 1987-12-30 |
| RO93111B1 true RO93111B1 (en) | 1987-12-31 |
Family
ID=20119399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO123357A RO93111B1 (en) | 1986-05-19 | 1986-05-19 | Process for preparing non-polar ferrofluids |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO93111B1 (en) |
-
1986
- 1986-05-19 RO RO123357A patent/RO93111B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO93111A2 (en) | 1987-12-30 |
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