FR2377970A1 - Procede de preparation de monocristaux " whiskers " de sulfate de calcium, et produits obtenus - Google Patents

Procede de preparation de monocristaux " whiskers " de sulfate de calcium, et produits obtenus

Info

Publication number
FR2377970A1
FR2377970A1 FR7801533A FR7801533A FR2377970A1 FR 2377970 A1 FR2377970 A1 FR 2377970A1 FR 7801533 A FR7801533 A FR 7801533A FR 7801533 A FR7801533 A FR 7801533A FR 2377970 A1 FR2377970 A1 FR 2377970A1
Authority
FR
France
Prior art keywords
calcium sulphate
monocristals
whiskers
preparation
products obtained
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.)
Withdrawn
Application number
FR7801533A
Other languages
English (en)
French (fr)
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.)
Bayer AG
Original Assignee
Bayer AG
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
Priority claimed from DE19772702101 external-priority patent/DE2702101A1/de
Priority claimed from DE19772702098 external-priority patent/DE2702098A1/de
Application filed by Bayer AG filed Critical Bayer AG
Publication of FR2377970A1 publication Critical patent/FR2377970A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B7/00—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/60—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape characterised by shape
    • C30B29/62—Whiskers or needles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Glass Compositions (AREA)
FR7801533A 1977-01-19 1978-01-19 Procede de preparation de monocristaux " whiskers " de sulfate de calcium, et produits obtenus Withdrawn FR2377970A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772702101 DE2702101A1 (de) 1977-01-19 1977-01-19 Calciumsulfatwhisker
DE19772702098 DE2702098A1 (de) 1977-01-19 1977-01-19 Verfahren zur herstellung und die verwendung von whiskern aus calciumsulfat

Publications (1)

Publication Number Publication Date
FR2377970A1 true FR2377970A1 (fr) 1978-08-18

Family

ID=25771486

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7801533A Withdrawn FR2377970A1 (fr) 1977-01-19 1978-01-19 Procede de preparation de monocristaux " whiskers " de sulfate de calcium, et produits obtenus

Country Status (6)

Country Link
ES (1) ES466113A1 (fi)
FI (1) FI780146A (fi)
FR (1) FR2377970A1 (fi)
GB (1) GB1573883A (fi)
NL (1) NL7800544A (fi)
SE (1) SE7800589L (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383179B (zh) * 2011-10-09 2015-09-09 昆明理工大学 一种工业废酸与磷石膏综合利用的方法
CN102776569A (zh) * 2012-07-09 2012-11-14 泰山医学院 一种利用天然石膏制备硫酸钙晶须的方法
CN103014869B (zh) * 2012-12-28 2015-07-22 清华大学 一种超细高长径比无水硫酸钙晶须的可控制备方法
CN104328480B (zh) * 2013-09-11 2015-08-05 江西峰竺新材料科技有限公司 一种硫酸钙晶须制备方法
CN110934323A (zh) * 2020-01-07 2020-03-31 湖北中烟工业有限责任公司 一种利用石膏晶须复合制备烟草薄片的方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1038025A (en) * 1963-08-16 1966-08-03 Bpb Industries Ltd Lightweight material and production thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1038025A (en) * 1963-08-16 1966-08-03 Bpb Industries Ltd Lightweight material and production thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/73 *

Also Published As

Publication number Publication date
ES466113A1 (es) 1978-10-01
FI780146A (fi) 1978-07-20
NL7800544A (nl) 1978-07-21
SE7800589L (sv) 1978-07-20
GB1573883A (en) 1980-08-28

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Legal Events

Date Code Title Description
RE Withdrawal of published application