Published October 31, 1991
| Version v1
Patent
Open
The purification method of packed forms of boron nitride from graphite like form of instabilized boron nitride
Description
The new method of purification of packed forms of boron nitride from its graphite likes form has been described. The purity of the product dedicated for machining tools production decided on their quality. The method consists in high pressure steam processing of the boron nitride powder contains their different forms in temperature range 150-400 C during 0.5-2 hours. After cooling, the intermediate product is rinsed by an acid and hot distillate water. Mixing is advantageous in this phase. Then the sediment is filtrated, washed and dried
Availability note (English)
MF available from INIS under the Report Number.Files
26071031.pdf
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Additional details
Additional titles
- Original title (Polish)
- Sposob oczyszczania upakowanych odmian azotku boru od grafitopodobnej odmiany niestabilizowanego azotku boru
Publishing Information
- Imprint Pagination
- 2 p.
- IPC:
- Int. Cl. C01B 21/064.
- IPC
- Int. Cl. C01B 21/064.
- Patent number
- PL patent document 153588
INIS
- Country of Publication
- Poland
- Country of Input or Organization
- Poland
- INIS RN
- 26071031
- Subject category
- S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- BORON NITRIDES; HIGH PRESSURE; PURIFICATION; STEAM INJECTION; TEMPERATURE RANGE 0400-1000 K
- Descriptors DEC
- BORON COMPOUNDS; FLUID INJECTION; NITRIDES; NITROGEN COMPOUNDS; PNICTIDES; TEMPERATURE RANGE; WELL STIMULATION
Optional Information
- Secondary number(s)
- PL patent application 272660.