GB990652A - Continuous process for the purification of boron nitride - Google Patents

Continuous process for the purification of boron nitride

Info

Publication number
GB990652A
GB990652A GB4635462A GB4635462A GB990652A GB 990652 A GB990652 A GB 990652A GB 4635462 A GB4635462 A GB 4635462A GB 4635462 A GB4635462 A GB 4635462A GB 990652 A GB990652 A GB 990652A
Authority
GB
United Kingdom
Prior art keywords
sausages
passed
crude
gas
boron nitride
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
Application number
GB4635462A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elektroschmelzwerk Kempten GmbH
Original Assignee
Elektroschmelzwerk Kempten GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Elektroschmelzwerk Kempten GmbH filed Critical Elektroschmelzwerk Kempten GmbH
Publication of GB990652A publication Critical patent/GB990652A/en
Expired legal-status Critical Current

Links

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
    • C01B21/064—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 boron
    • C01B21/0648—After-treatment, e.g. grinding, purification
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/583—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on boron nitride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
GB4635462A 1961-12-07 1962-12-07 Continuous process for the purification of boron nitride Expired GB990652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE22085A DE1182214B (de) 1961-12-07 1961-12-07 Verfahren zur kontinuierlichen Reinigung von Bornitrid

Publications (1)

Publication Number Publication Date
GB990652A true GB990652A (en) 1965-04-28

Family

ID=7070706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4635462A Expired GB990652A (en) 1961-12-07 1962-12-07 Continuous process for the purification of boron nitride

Country Status (3)

Country Link
BE (1) BE625813A (fi)
DE (1) DE1182214B (fi)
GB (1) GB990652A (fi)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420629A (en) * 1965-04-13 1969-01-07 Montedison Spa Production of boron nitride
US3607042A (en) * 1968-02-22 1971-09-21 United States Borax Chem Preparation of boron nitride
CN108455540A (zh) * 2018-03-14 2018-08-28 宁夏艾森达新材料科技有限公司 氮化铝陶瓷烧结用氮化硼炉具的处理方法
CN115321494A (zh) * 2022-08-31 2022-11-11 郑州中南杰特超硬材料有限公司 一种立方氮化硼碱处理提纯工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089931A (en) * 1977-07-22 1978-05-16 General Motors Corporation Purification of boron nitride

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE282701C (fi) *
DE1104930B (de) * 1957-12-05 1961-04-20 Carborundum Co Verfahren zur Herstellung von heisspressbarem stabilisiertem Bornitrid

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420629A (en) * 1965-04-13 1969-01-07 Montedison Spa Production of boron nitride
US3607042A (en) * 1968-02-22 1971-09-21 United States Borax Chem Preparation of boron nitride
CN108455540A (zh) * 2018-03-14 2018-08-28 宁夏艾森达新材料科技有限公司 氮化铝陶瓷烧结用氮化硼炉具的处理方法
CN115321494A (zh) * 2022-08-31 2022-11-11 郑州中南杰特超硬材料有限公司 一种立方氮化硼碱处理提纯工艺
CN115321494B (zh) * 2022-08-31 2024-02-27 郑州中南杰特超硬材料有限公司 一种立方氮化硼碱处理提纯工艺

Also Published As

Publication number Publication date
BE625813A (fi)
DE1182214B (de) 1964-11-26

Similar Documents

Publication Publication Date Title
ES393587A1 (es) Procedimiento para la separacion y recuperacion del mercu- rio yno selenio contenido en gases.
GB1446201A (en) Purification of inert gases
US2149671A (en) Process for purifying carbon black which has been formed on ironcontaining contacts
GB990652A (en) Continuous process for the purification of boron nitride
ES8106697A1 (es) Un procedimiento para la purificacion final de acrilonitrilode una solucion de acrilonitrilo,agua e impurezas
ES8504623A1 (es) Procedimiento e instalacion para la concentracion y purificacion de acido sulfurico
IN160952B (fi)
FR80148E (fr) Procédé de refroidissement et d'évacuation des gaz chauds provenant d'affinage pneumatique des fontes notamment avec emploi d'oxygène pur
CA1060632A (en) Purification of sulfuric acid containing acetic acid
BG49823A3 (en) Method for preparing of 1, 2- dichlorethane
FR2433571A1 (fr) Procede de desulfuration du coke
FR2450828A1 (fr) Procede de purification du mercaptobenzothiazole
ES449842A1 (es) Procedimiento para preparar peroxido de carbono sodico cris-talino seco y de libre fluencia.
GB1363965A (en) Process and apparatus for the continuous dearsenification of poly phosphoric acid
GB711254A (en) Process for the manufacture of boron nitride
GB915510A (en) Improvements in or relating to the production of trialkyladipic acids
GB1336635A (en) Production of cyanuric chloride
GB867574A (en) Improvements in or relating to processes for removing one gas from a mixture of gases
GB959167A (en) Process for the preparation of pure bismuth
GB456252A (en) Process for purifying finely divided carbon black which has been formed on iron-containing contacts by decomposition of carbon monoxide
GB1121478A (en) Improvements in the purification of pyromellitic dianhydride and/or acid
GB795629A (en) Treatment of platinum-containing catalyst
GB1370552A (en) Process for treating sulphuric acid sludge
US1571624A (en) Purification of gas
SU497218A1 (ru) Способ регенерации окисных катализаторов