JPH0424285B2 - - Google Patents
Info
- Publication number
- JPH0424285B2 JPH0424285B2 JP58230929A JP23092983A JPH0424285B2 JP H0424285 B2 JPH0424285 B2 JP H0424285B2 JP 58230929 A JP58230929 A JP 58230929A JP 23092983 A JP23092983 A JP 23092983A JP H0424285 B2 JPH0424285 B2 JP H0424285B2
- Authority
- JP
- Japan
- Prior art keywords
- silicon nitride
- nitride powder
- slurry
- impurities
- powder
- 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 - Lifetime
Links
- 239000000843 powder Substances 0.000 claims description 58
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 54
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 54
- 239000012535 impurity Substances 0.000 claims description 30
- 239000002002 slurry Substances 0.000 claims description 23
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 13
- 150000007522 mineralic acids Chemical class 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000010306 acid treatment Methods 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000010908 decantation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 150000001450 anions Chemical class 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- LJBWEZVYRBKOCI-UHFFFAOYSA-N 2,4,6-triaminoquinazoline Chemical compound N1=C(N)N=C(N)C2=CC(N)=CC=C21 LJBWEZVYRBKOCI-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/068—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with silicon
- C01B21/0687—After-treatment, e.g. grinding, purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
- Silicon Compounds (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23092983A JPS60122708A (ja) | 1983-12-07 | 1983-12-07 | 窒化けい素粉末の製法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23092983A JPS60122708A (ja) | 1983-12-07 | 1983-12-07 | 窒化けい素粉末の製法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60122708A JPS60122708A (ja) | 1985-07-01 |
| JPH0424285B2 true JPH0424285B2 (ko) | 1992-04-24 |
Family
ID=16915492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23092983A Granted JPS60122708A (ja) | 1983-12-07 | 1983-12-07 | 窒化けい素粉末の製法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60122708A (ko) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3829504A1 (de) * | 1988-08-31 | 1990-03-01 | Bayer Ag | Siliciumnitridpulver mit verbesserten oberflaecheneigenschaften sowie verfahren zu deren herstellung |
| FR2959507B1 (fr) * | 2010-04-30 | 2014-01-03 | Thales Sa | Procede de fabrication d'un materiau composite ceramique a base de nitrure de silicium et de beta-eucryptite. |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5891017A (ja) * | 1981-11-26 | 1983-05-30 | Denki Kagaku Kogyo Kk | α型窒化珪素の精製法 |
| JPS5895605A (ja) * | 1981-11-30 | 1983-06-07 | Toyota Motor Corp | 窒化珪素粉末の脱鉄方法 |
-
1983
- 1983-12-07 JP JP23092983A patent/JPS60122708A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5891017A (ja) * | 1981-11-26 | 1983-05-30 | Denki Kagaku Kogyo Kk | α型窒化珪素の精製法 |
| JPS5895605A (ja) * | 1981-11-30 | 1983-06-07 | Toyota Motor Corp | 窒化珪素粉末の脱鉄方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60122708A (ja) | 1985-07-01 |
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