GB1094798A - Process for the production of microspheroidal silica - Google Patents

Process for the production of microspheroidal silica

Info

Publication number
GB1094798A
GB1094798A GB1515166A GB1515166A GB1094798A GB 1094798 A GB1094798 A GB 1094798A GB 1515166 A GB1515166 A GB 1515166A GB 1515166 A GB1515166 A GB 1515166A GB 1094798 A GB1094798 A GB 1094798A
Authority
GB
United Kingdom
Prior art keywords
gel
silica
weight
acid
alkali metal
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
GB1515166A
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.)
WR Grace and Co
Original Assignee
WR Grace and Co
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 WR Grace and Co filed Critical WR Grace and Co
Publication of GB1094798A publication Critical patent/GB1094798A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/08—Silica
    • 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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/152—Preparation of hydrogels
    • C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions

Abstract

Microspheroidal silica is prepared by gelling with gaseous CO2 an alkali metal silicate solution having a silicate content expressed as silica of from 3 to 12% by weight, adding to the gel sufficient mineral acid to adjust the pH to less than 7, then adding a quantity of ammonium hydroxide to raise the pH into the range from above 7 to 9.5, spray drying the gel, and washing the spray dried gel to remove soluble impurities. If desired, the gel may be aged at 21 DEG to 82 DEG C. for a period of up to 3 hours between the initial gelation and the acid treatment and between the acid treatment and the ammonia treatment and it may be aged at the same temperature for up to 6 hours between the ammonia treatment and the spray drying. The product is said to have a surface area of 100-600 m.2/gm. and a pore volume greater than 1 c.c./gm. The preferred alkali metal silicate is sodium silicate and the silicate solution may have a silica to alkali metal ratio of from 3 : 1 to 3.4 : 1. The preferred mineral acid is sulphuric acid. In the washing step, the gel may be washed with a dilute mineral acid of concentration 0.2 to 5% by weight, e.g. 0.5 to 2 DEG B<\>ae sulphuric acid, or an aqueous solution containing 0.5 to 5% by weight of ammonium sulphate. The silica gel may finally be dried to a moisture content of 4 to 15% by weight, the drying temperature being 120-260 DEG C.
GB1515166A 1965-05-04 1966-04-05 Process for the production of microspheroidal silica Expired GB1094798A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45318665A 1965-05-04 1965-05-04

Publications (1)

Publication Number Publication Date
GB1094798A true GB1094798A (en) 1967-12-13

Family

ID=23799519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1515166A Expired GB1094798A (en) 1965-05-04 1966-04-05 Process for the production of microspheroidal silica

Country Status (1)

Country Link
GB (1) GB1094798A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0468070A1 (en) * 1989-02-20 1992-01-29 Fuji Silysia Chemical Ltd. A method for preparing spherular silica gel particles
US5232883A (en) * 1991-03-11 1993-08-03 Solvay (Societe Anonyme) Process for obtaining monodisperse microspheroidal particles, microspheroidal silica particles of high specific surface, and catalysts supported on these particles
US6107233A (en) * 1997-03-24 2000-08-22 E. I. Du Pont De Nemours And Company Process for the preparation of spherically shaped microcomposites
US6262326B1 (en) 2000-06-06 2001-07-17 E. I. Du Pont De Nemours And Company Process for the preparation of spherically shaped microcomposites
EP2926896A4 (en) * 2012-11-27 2016-08-10 Shenhua Group Corp Ltd Method for preparing solid amine gas adsorption material
CN109835909A (en) * 2017-11-28 2019-06-04 中国石油天然气股份有限公司 A kind of preparation method of modified silica gel carrier
CN114931927A (en) * 2022-05-04 2022-08-23 中海油天津化工研究设计院有限公司 Adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil and preparation method thereof
CN114950341A (en) * 2022-05-04 2022-08-30 中海油天津化工研究设计院有限公司 Binder-free arene adsorbent and preparation method thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0468070A1 (en) * 1989-02-20 1992-01-29 Fuji Silysia Chemical Ltd. A method for preparing spherular silica gel particles
US5589150A (en) * 1989-02-20 1996-12-31 Fuji-Davison Chemical Ltd. Method for preparing spherular silica gel particles
US5232883A (en) * 1991-03-11 1993-08-03 Solvay (Societe Anonyme) Process for obtaining monodisperse microspheroidal particles, microspheroidal silica particles of high specific surface, and catalysts supported on these particles
US5296564A (en) * 1991-03-11 1994-03-22 Solvay (Societe Anonyme) Process for the polymerization of alpha-olefins
US6534690B2 (en) 1996-03-28 2003-03-18 E. I. Du Pont De Nemours And Company Process for the preparation of spherically shaped microcomposites
US6107233A (en) * 1997-03-24 2000-08-22 E. I. Du Pont De Nemours And Company Process for the preparation of spherically shaped microcomposites
US6262326B1 (en) 2000-06-06 2001-07-17 E. I. Du Pont De Nemours And Company Process for the preparation of spherically shaped microcomposites
EP2926896A4 (en) * 2012-11-27 2016-08-10 Shenhua Group Corp Ltd Method for preparing solid amine gas adsorption material
CN109835909A (en) * 2017-11-28 2019-06-04 中国石油天然气股份有限公司 A kind of preparation method of modified silica gel carrier
CN114931927A (en) * 2022-05-04 2022-08-23 中海油天津化工研究设计院有限公司 Adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil and preparation method thereof
CN114950341A (en) * 2022-05-04 2022-08-30 中海油天津化工研究设计院有限公司 Binder-free arene adsorbent and preparation method thereof
CN114950341B (en) * 2022-05-04 2023-12-08 中海油天津化工研究设计院有限公司 Binder-free aromatic hydrocarbon adsorbent and preparation method thereof
CN114931927B (en) * 2022-05-04 2024-02-09 中海油天津化工研究设计院有限公司 Adsorbent for adsorbing and separating aromatic hydrocarbon in gasoline and diesel oil and preparation method thereof

Similar Documents

Publication Publication Date Title
GB1446471A (en) Amorphous precipitated silicic acid pigments and methods for their production
GB1216638A (en) Process for preparing micro-spheroidal desiccant silica gel
GB1284086A (en) Preparation of silica gels
GB1447663A (en) Amorphour precipitated siliceous pigments for cosmetic or dentifrice use and methods for their production
GB1503808A (en) Process for preparing a zeolitic composition useful as a hydrocarbon conversion catalyst
GB1183520A (en) Porous high silica glass
GB1340377A (en) Production of copper silicate
GB1236775A (en) Process for the production of modified silica and silicates
GB1284085A (en) Preparation of silica gels
GB1403449A (en) Manufacture of percarbonate
GB1094798A (en) Process for the production of microspheroidal silica
GB1144355A (en) Improvements in or relating to silicic acid production
GB1425090A (en) Process of preparing silica xerogels
US2798049A (en) Alumina sols and gels and process of producing same
GB895366A (en) Process for the production of glass
GB1114401A (en) Process for the production of alumina gels
EP0124736A3 (en) Granules of zeolite bonded by silicates, process for their production and their use
GB1150764A (en) A process for the production of Sodium Aluminium Silicate Pigments
GB1393039A (en) Preparation of reinforcing amorphous silica
GB1445635A (en) Method for producing amorphous precipitated silicic acid pigments
GB1467537A (en) Method of producing calcium fluoride from fluosilicic acid
GB1214582A (en) Process for preparing silica gel
GB1317401A (en) Process for producing silica of high pore volume
GB1077908A (en) Process for the production of silica gels
US1617708A (en) Method of making silicofluorides and products thereof