GB745822A - Improvements in or relating to a method and process for preparing finely divided pigmentary silica - Google Patents

Improvements in or relating to a method and process for preparing finely divided pigmentary silica

Info

Publication number
GB745822A
GB745822A GB25107/52A GB2510752A GB745822A GB 745822 A GB745822 A GB 745822A GB 25107/52 A GB25107/52 A GB 25107/52A GB 2510752 A GB2510752 A GB 2510752A GB 745822 A GB745822 A GB 745822A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
silica
solution
sio2
acid
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
GB25107/52A
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.)
Columbia Southern Chemical Corp
Original Assignee
Columbia Southern Chemical Corp
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 Columbia Southern Chemical Corp filed Critical Columbia Southern Chemical Corp
Publication of GB745822A publication Critical patent/GB745822A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
    • C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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
    • C01P2006/80—Compositional purity
    • 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
    • C01P2006/80—Compositional purity
    • C01P2006/82—Compositional purity water content

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)

Abstract

Finely divided silica is precipitated from an aqueous solution of an alkali metal silicate containing 10-150 gm./l. of SiO2, in the presence or absence of a non-reactive alkali metal salt, by the addition of an acidic substance in an amount sufficient to precipitate substantially all the silica in the solution but insufficient to produce a slurry having a pH below 5, the silicate concentration of the solution, the amount of non-reactive alkali metal salt present, the rate of addition of acidic substance, and the temperature of the solution being correlated to produce a silica having a surface area of 25-200 sq. m./gm. and an average particle size below 0.1 micron on the lines indicated in the Figs. (not shown). "Acidic substances" which may be used are carbon dioxide, sulphur dioxide, hydrogen sulphide, chlorine, hydrochloric acid, sulphuric acid, nitric acid, hypochlorous acid, phosphoric acid sodium bi-carbonate, sodium bisulphate, disodium hydrogen phosphate, and ammonium chloride. The alkali metal silicate solution may be used in a concentration of 10-100 gm./l. of SiO2 and may be sodium silicate having the composition Na2O (SiO2)x where x ranges from 1.65 to 4.0 and containing 7.6-30.45 gm./l. of Na2O. The time of acidification may be 5-2880 minutes and is preferably greater than 3 hours. The temperature of the solution may be 10-100 DEG C. The non-reactive alkali metal salt may be sodium chloride bromide, sulphate, nitrate or phosphate, or the corresponding potassium or lithium salts. 5-100 gm./l. of sodium chloride may be used. At a reaction temperature of 50-75 DEG C. and an SiO2 concentration of above 50 gm./l. the presence of alkali metal salt may be dispensed with. The alkali metal content of the precitation silica may be reduced by reslurrying and treating with acid. The silica is recovered and dried in known manner as at 100-150 DEG C. It may be partially calcined. The product may be incorporated in GR-S rubber. Specifications 294 681, 299,483 [both in Class 1(ii)], 561,750 and 745,890 are referred to.
GB25107/52A 1951-10-09 1952-10-07 Improvements in or relating to a method and process for preparing finely divided pigmentary silica Expired GB745822A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US745822XA 1951-10-09 1951-10-09
US338812XA 1952-09-06 1952-09-06

Publications (1)

Publication Number Publication Date
GB745822A true GB745822A (en) 1956-03-07

Family

ID=26710260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25107/52A Expired GB745822A (en) 1951-10-09 1952-10-07 Improvements in or relating to a method and process for preparing finely divided pigmentary silica

Country Status (4)

Country Link
CH (2) CH354061A (en)
DE (3) DE1076650B (en)
FR (2) FR1064230A (en)
GB (1) GB745822A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059997A (en) * 1958-12-18 1962-10-23 Socony Mobil Oil Co Inc Method for preparing siliceous aerogels
US3070426A (en) * 1959-08-11 1962-12-25 Grace W R & Co Process for preparing low surface area silica
US3079234A (en) * 1959-10-23 1963-02-26 Socony Mobil Oil Co Inc Process for preparing siliceous aerogels
GB2222823A (en) * 1987-05-25 1990-03-21 Kawatetsu Mining A process for producing high purity silica
US5445804A (en) * 1993-02-02 1995-08-29 Rotem Fertilizers Ltd. Process for the manufacture of pure amorphous silica from rocks
WO2006125927A1 (en) * 2005-05-27 2006-11-30 Rhodia Chimie Method of preparing precipitated silica, precipitated silica thus obtained and use thereof, for example as a filler in silicon matrices

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025403B (en) * 1955-03-31 1958-03-06 Sued Chemie Ag Process for the production of finely divided silica
US3085861A (en) * 1955-04-08 1963-04-16 Pittsburgh Plate Glass Co Preparation of siliceous pigment
DE1119645B (en) * 1957-01-31 1961-12-14 Escher Wyss Gmbh Process for removing silicic acid from alkaline waste liquors in the pulp industry
NL232042A (en) * 1958-01-29
DE1117552B (en) * 1959-04-17 1961-11-23 Chem Fab Hoesch K G Process for the production of highly active silica
BE611512A (en) * 1960-12-14
NL132893C (en) * 1960-12-24
US3178388A (en) * 1961-10-03 1965-04-13 Burke Silica fillers reacted with sea water and uses thereof
US3202525A (en) * 1961-10-03 1965-08-24 Burke Addition of sea water during precipitation of silica pigment
NL291796A (en) * 1962-06-23
DE1282008B (en) * 1964-12-16 1968-11-07 Degussa Process for cleaning precipitated silicas and / or silicates
DE1299617B (en) * 1965-01-13 1969-07-24 Degussa Process for the manufacture of finely divided precipitated silica
US3928541A (en) * 1972-09-05 1975-12-23 Huber Corp J M Amorphous precipitated siliceous pigments for cosmetic or dentrifrice use and methods for their production
AU505536B2 (en) * 1975-03-12 1979-11-22 J.M. Huber Corp. Methods for production and use of siliceous products
JPS60105609A (en) * 1983-03-04 1985-06-11 Taki Chem Co Ltd Silica base for dentifrice and its preparation
JPS59163306A (en) * 1983-03-08 1984-09-14 Taki Chem Co Ltd Silica as tooth paste base and its preparation
JPS60204613A (en) * 1984-03-30 1985-10-16 Nippon Sheet Glass Co Ltd Production of high purity silica gel
DE3545615C3 (en) * 1984-12-28 1996-11-21 Ppg Industries Inc Use of amorphous precipitated silicon dioxide to reinforce microporous separating elements for batteries
US4681750A (en) * 1985-07-29 1987-07-21 Ppg Industries, Inc. Preparation of amorphous, precipitated silica and siliceous filler-reinforced microporous polymeric separator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE348769C (en) * 1922-02-16 Michael & Co J Process for the production of alkali-free, amorphous silica
US2114123A (en) * 1935-11-01 1938-04-12 American Cyanamid Co Amorphous precipitated silica and method of preparation thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059997A (en) * 1958-12-18 1962-10-23 Socony Mobil Oil Co Inc Method for preparing siliceous aerogels
US3070426A (en) * 1959-08-11 1962-12-25 Grace W R & Co Process for preparing low surface area silica
US3079234A (en) * 1959-10-23 1963-02-26 Socony Mobil Oil Co Inc Process for preparing siliceous aerogels
GB2222823A (en) * 1987-05-25 1990-03-21 Kawatetsu Mining A process for producing high purity silica
GB2222823B (en) * 1987-05-25 1992-04-08 Kawatetsu Mining A process for producing high purity silica
US5445804A (en) * 1993-02-02 1995-08-29 Rotem Fertilizers Ltd. Process for the manufacture of pure amorphous silica from rocks
AU665699B2 (en) * 1993-02-02 1996-01-11 Rotem Amfert Negev Ltd. Process for the manufacture of pure amorphous silica from rocks
WO2006125927A1 (en) * 2005-05-27 2006-11-30 Rhodia Chimie Method of preparing precipitated silica, precipitated silica thus obtained and use thereof, for example as a filler in silicon matrices
FR2886285A1 (en) * 2005-05-27 2006-12-01 Rhodia Chimie Sa PROCESS FOR THE PREPARATION OF PRECIPITATED SILICA, PRECIPITATED SILICA AND USES, IN PARTICULAR AS CHARGING IN SILICONE MATRICES
JP2008542163A (en) * 2005-05-27 2008-11-27 ロディア・シミ Method for producing precipitated silica, resulting precipitated silica, especially use as a filler in silicon matrix

Also Published As

Publication number Publication date
FR1064230A (en) 1954-05-12
DE1076650B (en) 1960-03-03
DE1083241B (en) 1960-06-15
FR73756E (en) 1960-09-05
DE1049834B (en)
CH338812A (en) 1959-06-15
CH354061A (en) 1961-05-15

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