JPS5756314A - Granular silicic acid hydrate and manufacture - Google Patents

Granular silicic acid hydrate and manufacture

Info

Publication number
JPS5756314A
JPS5756314A JP12918080A JP12918080A JPS5756314A JP S5756314 A JPS5756314 A JP S5756314A JP 12918080 A JP12918080 A JP 12918080A JP 12918080 A JP12918080 A JP 12918080A JP S5756314 A JPS5756314 A JP S5756314A
Authority
JP
Japan
Prior art keywords
silicic acid
acid hydrate
fine
hydrate
manufacture
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.)
Granted
Application number
JP12918080A
Other languages
Japanese (ja)
Other versions
JPS608970B2 (en
Inventor
Takaaki Ikeda
Takeo Shimada
Yoshiro Segawa
Nobuyuki Yamazaki
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.)
NIPPON KAGAKU KOGYO KK
Nippon Chemical Industrial Co Ltd
Original Assignee
NIPPON KAGAKU KOGYO KK
Nippon Chemical Industrial Co Ltd
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 NIPPON KAGAKU KOGYO KK, Nippon Chemical Industrial Co Ltd filed Critical NIPPON KAGAKU KOGYO KK
Priority to JP12918080A priority Critical patent/JPS608970B2/en
Publication of JPS5756314A publication Critical patent/JPS5756314A/en
Publication of JPS608970B2 publication Critical patent/JPS608970B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To manufacture granular silicic acid hydrate at no enormous cost for evaporation by press-dehydrating a slurry of fine amorphous silicic acid produced by the reaction of alkali silicate with sulfuric acid and pulverizing and drying the resulting cake contg. water.
CONSTITUTION: Alkali silicate is reacted with sulfuric acid by a known method to produce a slurry of fine silicic acid hydrate. This precipitate of amorphous silicic acid hydrate is filtered, washed, optionally reslurrified, and dehydrated to at least 80, preferably 60W70% water content by pressing under 20W100, preferably 30W90kg/cm2 press dehydrating pressure. The resulting cake contg. water is pulverized and dried to obtain granular amorphous silicic acid hydrate having 0.01W5mm grain size. When this silicic acid is mixed or kneaded with other starting material, it is easily made fine and acts like sufficiently fine silicic acid hydrate.
COPYRIGHT: (C)1982,JPO&Japio
JP12918080A 1980-09-19 1980-09-19 Manufacturing method of granular hydrated silicic acid Expired JPS608970B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12918080A JPS608970B2 (en) 1980-09-19 1980-09-19 Manufacturing method of granular hydrated silicic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12918080A JPS608970B2 (en) 1980-09-19 1980-09-19 Manufacturing method of granular hydrated silicic acid

Publications (2)

Publication Number Publication Date
JPS5756314A true JPS5756314A (en) 1982-04-03
JPS608970B2 JPS608970B2 (en) 1985-03-07

Family

ID=15003111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12918080A Expired JPS608970B2 (en) 1980-09-19 1980-09-19 Manufacturing method of granular hydrated silicic acid

Country Status (1)

Country Link
JP (1) JPS608970B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0673691A (en) * 1984-07-05 1994-03-15 Tokuyama Soda Co Ltd Method for papermaking
CN1047148C (en) * 1994-09-26 1999-12-08 日本制纸株式会社 Method for prepn. hydrate of silicic acid
EP2828197A1 (en) * 2012-03-22 2015-01-28 Rhodia Opérations Method for preparing precipitated silica comprising a high compaction step

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3988914A4 (en) 2019-06-19 2023-07-19 Mitsui Chemicals, Inc. Tactile sensor formed on polyimide thin film having high total light transmittance, and switching device using same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0673691A (en) * 1984-07-05 1994-03-15 Tokuyama Soda Co Ltd Method for papermaking
CN1047148C (en) * 1994-09-26 1999-12-08 日本制纸株式会社 Method for prepn. hydrate of silicic acid
EP2828197A1 (en) * 2012-03-22 2015-01-28 Rhodia Opérations Method for preparing precipitated silica comprising a high compaction step
JP2015510865A (en) * 2012-03-22 2015-04-13 ローディア オペレーションズ Method for producing precipitated silica including a high compression step
US10865114B2 (en) 2012-03-22 2020-12-15 Rhodia Operations Process for preparing precipitated silica comprising a high compaction step

Also Published As

Publication number Publication date
JPS608970B2 (en) 1985-03-07

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