GB998923A - Process for the production of finely-dispersed calcium silicate fillers - Google Patents

Process for the production of finely-dispersed calcium silicate fillers

Info

Publication number
GB998923A
GB998923A GB1703362A GB1703362A GB998923A GB 998923 A GB998923 A GB 998923A GB 1703362 A GB1703362 A GB 1703362A GB 1703362 A GB1703362 A GB 1703362A GB 998923 A GB998923 A GB 998923A
Authority
GB
United Kingdom
Prior art keywords
sio2
calcium silicate
cao
calcium
silicate
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
GB1703362A
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
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB998923A publication Critical patent/GB998923A/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
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/24—Alkaline-earth metal silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/06—Solidifying liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/22—Magnesium silicates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/28—Compounds of silicon
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/90—Other properties not specified above

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Silicon Compounds (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Finely divided calcium silicate having a molar ratio of SiO2: CaO of 1.2-3: 1 and a disturbed tobermorite-like structure (as defined) is made by mixing with intense stirring freshly precipitated hydrated calcium silicate having SiO2: CaO of 1: 1 and the above structure, with an aqueous solution of an alkali metal silicate and a calcium halide, hydrohalic acid or mixture thereof. The calcium silicate of 1: 1-SiO2: CaO ratio may be made from milk of lime, hydrochloric acid or calcium chloride, and water glass. Calcium chloride may be used in the form of spent lye containing sodium chloride from the Solvay soda process. The reactants may be added separately or simultaneously. The product mau be ground in a pin mill to form a voluminous filler. The invention also comprises a finely divided calcium silicate filler comprising leaf-shaped primary particles and also particles of spherical form showing the strongest 4-7 interferences of the tobermorite X-ray diagram, the molar ratio of SiO2: CaO being 1.2-3: 1, and having a specified surface area and sedimentation volume.
GB1703362A 1961-12-18 1962-05-03 Process for the production of finely-dispersed calcium silicate fillers Expired GB998923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF35583A DE1170383B (en) 1961-12-18 1961-12-18 Process for the production of finely divided calcium silicate fillers

Publications (1)

Publication Number Publication Date
GB998923A true GB998923A (en) 1965-07-21

Family

ID=7096060

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1703362A Expired GB998923A (en) 1961-12-18 1962-05-03 Process for the production of finely-dispersed calcium silicate fillers

Country Status (4)

Country Link
BE (1) BE616400A (en)
CH (1) CH451888A (en)
DE (1) DE1170383B (en)
GB (1) GB998923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997010179A1 (en) * 1995-09-13 1997-03-20 The Australian National University Magnesiosilicates

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110950653B (en) * 2019-11-25 2022-04-19 浙江工业大学 Preparation method of sodium calcium silicate
RU2737797C1 (en) * 2019-12-09 2020-12-03 Акционерное общество "Радиевый институт имени В.Г. Хлопина" Method of producing calcium silicate with given dispersion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997010179A1 (en) * 1995-09-13 1997-03-20 The Australian National University Magnesiosilicates

Also Published As

Publication number Publication date
CH451888A (en) 1968-05-15
BE616400A (en) 1962-07-31
DE1170383B (en) 1964-05-21

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