KR950005745A - 침강 실리카의 제조방법 - Google Patents

침강 실리카의 제조방법 Download PDF

Info

Publication number
KR950005745A
KR950005745A KR1019940019314A KR19940019314A KR950005745A KR 950005745 A KR950005745 A KR 950005745A KR 1019940019314 A KR1019940019314 A KR 1019940019314A KR 19940019314 A KR19940019314 A KR 19940019314A KR 950005745 A KR950005745 A KR 950005745A
Authority
KR
South Korea
Prior art keywords
value
surface area
dispersion
precipitated silica
dryer
Prior art date
Application number
KR1019940019314A
Other languages
English (en)
Other versions
KR970005188B1 (ko
Inventor
에슈 하인쯔
쿨만 로베르트
노이뮐러 마티아스
옷토 카린
라우쉬 랄프
Original Assignee
볼프강 메르크, 볼프강 베버
데구사 아크티엔게젤샤프트
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 볼프강 메르크, 볼프강 베버, 데구사 아크티엔게젤샤프트 filed Critical 볼프강 메르크, 볼프강 베버
Publication of KR950005745A publication Critical patent/KR950005745A/ko
Application granted granted Critical
Publication of KR970005188B1 publication Critical patent/KR970005188B1/ko

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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • 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
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Silicon Compounds (AREA)
  • Cosmetics (AREA)

Abstract

BET 표면적이 10 내지 130㎡/g이고 CATB 표면적이 10내지 70㎡/g이며 평균 입자 직경이 5 내지 20㎛이고 10% 글리세롤 분산액중에서의 Cu 마모치가 4 내지 50㎎이며 CMC용액(20%분산액)중에서의 증점 거동이 300 내지 3500mPa.s인 침강 실리카는, 알칼리 규산염(SiO2: 알칼리 산화물의 중량 모듈러스=2.5 내지 3.9:1)과 광산을, 물처리를 첨가하여 pH값을 7.0 내지 9.9 또는 10.0 내지 10.7로 조정한 초기량의 물에 동시에 첨가하고 [첨가하는 동안 pH값을 7.0 내지 9.9 또는 10.0 내지 10.7로 일정하게 유지시킨다(여기서, 초기 침강온도는 50 내지 90℃로 유지시키며, 침강시간의 25%가 경과하면 점도가 증가한다)], pH를 6이하, 바람직하게는 3.5로 조정한 다음, 일단 실리카 함량이 120g/ℓ또는 150g/ℓ초과, 바람직하게는 160g/ℓ 내지 240g/ℓ에 도달하면, 고체를 여과하여 분리하고, 세척한 다음, 건조시켜 분쇄하는 방법으로 제조한다.
침강 실리카는 치약에 마모 및/또는 증점 성분으로서 사용될 수 있다.

Description

침강 실리카의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 각각 실시예 1 내지 5에서의 침강 동안의 점도 곡선이다.

Claims (5)

  1. 알칼리 규산염(SiO2: 알칼리 산화물의 중량 모듈러스=2.5 내지 3.9:1)과 광산을, 물유리를 첨가하여 pH값을 7.0 내지 9.9 또는 10.0 내지 10.7로 조정한 초기량의 물에 동시에 첨가하고 [첨가하는 동안 pH값을 7.0 내지 9.9 또는 10.0 내지 10.7로 일정하게 유지시킨다(여기서, 초기 침강온도는 50 내지 90℃로 유지시키며, 침강시간의 25%가 경과하면 점도가 증가한다)], pH를 6이하, 바람직하게는 3.5로 조정한 다음, 일단 실리카 함량이 120g/ℓ또는 150g/ℓ초과, 바람직하게는 160g/ℓ 내지 240g/ℓ에 도달하면, 고체를 여과하여 분리하고, 세척한 다음, 건조시켜 분쇄함을 특징으로 하여, BET 표면적이 10 내지 130㎡/g이고 CTAB 표면적이 10 내지 70㎡/g이며 평균입자 직경이 5 내지 20㎛이고 10%글리세롤 분산액중에서의 Cu 마모치가 4 내지 50㎎이며 CMC용액(20%분산액)중에서의 증점 거동이 300 내지 3500mPa.s인 침강 실리카를 제조하는 방법.
  2. 제1항에 있어서, 챔버 프레스 또는 막 필터 프레스를 사용하여 여과하는 방법.
  3. 제1항에 있어서, 순환 공기 건조기, 뷔트너 건조기, 유동 건조기 또는 이와 유사한 건조기를 사용하여 건조시키는 방법.
  4. 제1항에 있어서, 액화 필터 케이크가 분무 건조기 속에서 건조되는 방법.
  5. 제1항에 있어서, 필터 케이크가 밀(mill drying) 건조되는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940019314A 1993-08-07 1994-08-05 침강 실리카의 제조방법 KR970005188B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4326576 1993-08-07
DEP4326576.6 1993-08-07
DE4423493A DE4423493A1 (de) 1993-08-07 1994-07-05 Verfahren zur Herstellung einer Fällungskieselsäure
DEP4423493.7 1994-07-05

Publications (2)

Publication Number Publication Date
KR950005745A true KR950005745A (ko) 1995-03-20
KR970005188B1 KR970005188B1 (ko) 1997-04-14

Family

ID=6494691

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940019314A KR970005188B1 (ko) 1993-08-07 1994-08-05 침강 실리카의 제조방법

Country Status (4)

Country Link
KR (1) KR970005188B1 (ko)
DE (1) DE4423493A1 (ko)
TW (1) TW328533B (ko)
ZA (1) ZA945890B (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19642448A1 (de) * 1996-03-27 1997-10-02 Degussa Fällungskieselsäure
ES2121639T5 (es) * 1996-03-27 2002-08-01 Degussa Silice precipitada.
DE19740440A1 (de) * 1997-09-15 1999-03-18 Degussa Leicht dispergierbare Fällungskieselsäure
DE19840153A1 (de) 1998-09-03 2000-04-20 Degussa Fällungskieselsäure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE629129A (ko) * 1962-03-02
FR2622439B1 (fr) * 1987-11-04 1991-07-12 Rhone Poulenc Chimie Silice pour compositions dentifrices compatible notamment avec la chlorhexidine

Also Published As

Publication number Publication date
TW328533B (en) 1998-03-21
DE4423493A1 (de) 1995-02-09
KR970005188B1 (ko) 1997-04-14
ZA945890B (en) 1995-03-16

Similar Documents

Publication Publication Date Title
MY111122A (en) Process for the production of a precipitated silica.
JPS55155059A (en) Production of stable inorganic pigment composition
CA2123613A1 (en) Cereal extracts
CA2010869A1 (en) Process for preparing high solids slurries
IE792408L (en) Silica gel
CA2378718A1 (en) Process for flocculating suspensions
KR950017739A (ko) 티타늄 디옥사이드 슬러리 및 그 제조방법
GB1105618A (en) A process for the production of finely divided precipitated silicon dioxide
CA2135042A1 (fr) Procede pour l'obtention d'agents filtrants diatomitiques a tres faible teneur en cristobalite par agglomeration avec des liants silicates ou siliciques et agents filtrants correspondants
EP0073340A3 (en) Titanium dioxide pigment having improved photostability and process for producing same
KR950005745A (ko) 침강 실리카의 제조방법
CN106966597B (zh) 一种用于低温烧成调湿陶瓷砖的增白釉料及其制备方法
CN110817892B (zh) 一种涂料油漆用超细白炭黑的制备方法
US3716493A (en) Process for making fine sized low density silica
US4202910A (en) Filtration of vegetable based matter
Leong et al. Role of rheology in colloidal processing of ZrO sub 2
GB2173180A (en) High solids processing of kaolinitic clays with post-leaching oxidation
CN112645418A (zh) 一种甜菊糖提纯用复合絮凝剂
TH19369A (th) กรรมวิธีการผลิตซิลิกาชนิดตกตะกอน
US5968249A (en) Process for preparing silica pigment
WO2002072482A3 (en) Process for flocculating suspensions
SU715594A1 (ru) Способ поверхностной обработки пигментной двуокиси титана анатазной модификации
TH19369EX (th) กรรมวิธีการผลิตซิลิกาชนิดตกตะกอน
RU2325373C2 (ru) Способ приготовления спекающегося ангоба
SU1084249A1 (ru) Способ поверхностной обработки пигментного диоксида титана

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20020725

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee