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WO2010147500A1 - Procédé de production de dioxyde de silicium - Google Patents

Procédé de production de dioxyde de silicium Download PDF

Info

Publication number
WO2010147500A1
WO2010147500A1 PCT/RU2010/000156 RU2010000156W WO2010147500A1 WO 2010147500 A1 WO2010147500 A1 WO 2010147500A1 RU 2010000156 W RU2010000156 W RU 2010000156W WO 2010147500 A1 WO2010147500 A1 WO 2010147500A1
Authority
WO
WIPO (PCT)
Prior art keywords
solution
demineralized water
sodium silicate
reactor
battery 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.)
Ceased
Application number
PCT/RU2010/000156
Other languages
English (en)
Russian (ru)
Inventor
Святослав Леонидович ЛОСЬ
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.)
OBSCHESTVO S OGRANICHENNOI OTVETSTVENNOSTYU "SINTETICHESKIE KREMNEZEMY"
Original Assignee
OBSCHESTVO S OGRANICHENNOI OTVETSTVENNOSTYU "SINTETICHESKIE KREMNEZEMY"
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 OBSCHESTVO S OGRANICHENNOI OTVETSTVENNOSTYU "SINTETICHESKIE KREMNEZEMY" filed Critical OBSCHESTVO S OGRANICHENNOI OTVETSTVENNOSTYU "SINTETICHESKIE KREMNEZEMY"
Publication of WO2010147500A1 publication Critical patent/WO2010147500A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C01B33/113—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

Definitions

  • the present invention relates to technological processes in the field of chemistry and can be used to obtain silicon dioxide in the form of a fine powder.
  • the solution from the collection with a solution of sodium silicate in demineralized water at room temperature is supplied at a speed of 20 l / min, and from the collection with a solution of battery acid at room temperature at a speed of 8 l / min.
  • This provides a pH of the growth medium from 10 to 1 1.
  • the supply of solutions to the reactor should not be less than 25 minutes.
  • the resulting silicon dioxide is a white fine powder having an amorphous structure.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

L'invention concerne la chimie. Le procédé consiste à préparer, dans des récipients distincts et à température ambiante, des solutions de silicate de sodium dans de l'eau déminéralisée et d'acide adapté aux batteries. On prépare dans un réacteur une solution chaude de silicate de sodium dans de l'eau déminéralisée chauffée et remuée en continu; on maintient une température de 94°C. On ajoute simultanément dans le réacteur à partir des récipients les solutions de silicate de sodium dans de l'eau déminéralisée et d'acide pour batteries. Lorsque le pH dans le réacteur atteint 10 à 11, on ajoute de l'acide pour batteries jusqu'à ce que l'on atteigne un pH de 4,5. On isole et on sèche la suspension de dioxyde de silicium précipité obtenue. Le dioxyde de silicium se présente comme une poudre blanche à faible granularité.
PCT/RU2010/000156 2009-06-19 2010-04-05 Procédé de production de dioxyde de silicium Ceased WO2010147500A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2009123259/05A RU2407703C1 (ru) 2009-06-19 2009-06-19 Способ получения двуокиси кремния
RU2009123259 2009-06-19

Publications (1)

Publication Number Publication Date
WO2010147500A1 true WO2010147500A1 (fr) 2010-12-23

Family

ID=43356593

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2010/000156 Ceased WO2010147500A1 (fr) 2009-06-19 2010-04-05 Procédé de production de dioxyde de silicium

Country Status (2)

Country Link
RU (1) RU2407703C1 (fr)
WO (1) WO2010147500A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104066683A (zh) * 2012-01-25 2014-09-24 罗地亚运作公司 沉淀二氧化硅制造方法
CN105540926A (zh) * 2016-01-07 2016-05-04 华新珍 一种利用酸性废水联产白炭黑和无机盐的方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000761A1 (fr) * 2006-06-27 2008-01-03 Rhodia Operations Silice precipitee pour application papier
WO2008136019A2 (fr) * 2007-05-03 2008-11-13 Council Of Scientific & Industrial Research Procédé pour la préparation d'une silice précipitée finement divisée

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973462A (en) * 1987-05-25 1990-11-27 Kawatetsu Mining Company, Ltd. Process for producing high purity silica
FR2732330B1 (fr) * 1995-03-29 1997-06-20 Rhone Poulenc Chimie Nouveau procede de preparation de silice precipitee, nouvelles silices precipitees contenant du zinc et leur utilisation au renforcement des elastomeres

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000761A1 (fr) * 2006-06-27 2008-01-03 Rhodia Operations Silice precipitee pour application papier
WO2008136019A2 (fr) * 2007-05-03 2008-11-13 Council Of Scientific & Industrial Research Procédé pour la préparation d'une silice précipitée finement divisée

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A. G. AMELIN ET AL.: "Vysshaya shkola", PROIZBODSTVO SERNOY KISLOTY., 1974, MOSCOW, pages 12, 178, 179 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104066683A (zh) * 2012-01-25 2014-09-24 罗地亚运作公司 沉淀二氧化硅制造方法
CN105540926A (zh) * 2016-01-07 2016-05-04 华新珍 一种利用酸性废水联产白炭黑和无机盐的方法
CN105540926B (zh) * 2016-01-07 2018-02-16 江苏盛吉化工有限公司 一种利用酸性废水联产白炭黑和无机盐的方法

Also Published As

Publication number Publication date
RU2407703C1 (ru) 2010-12-27

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