BR9408498A - Processo para a extração de cristais de grãos grossos de ácido silicico puro - Google Patents
Processo para a extração de cristais de grãos grossos de ácido silicico puroInfo
- Publication number
- BR9408498A BR9408498A BR9408498A BR9408498A BR9408498A BR 9408498 A BR9408498 A BR 9408498A BR 9408498 A BR9408498 A BR 9408498A BR 9408498 A BR9408498 A BR 9408498A BR 9408498 A BR9408498 A BR 9408498A
- Authority
- BR
- Brazil
- Prior art keywords
- extraction
- silicic acid
- coarse grain
- grain crystals
- pure silicic
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/10—Concentrating spent liquor by evaporation
- D21C11/106—Prevention of incrustations on heating surfaces during the concentration, e.g. by elimination of the scale-forming substances contained in the liquors
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0260893A AT401070B (de) | 1993-12-23 | 1993-12-23 | Verfahren zur gewinnung grobkörniger reiner kieselsäure |
PCT/AT1994/000202 WO1995017547A1 (de) | 1993-12-23 | 1994-12-22 | Verfahren zur gewinnung grobkörniger reiner kieselsäurekristalle |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9408498A true BR9408498A (pt) | 1997-08-26 |
Family
ID=3537315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9408498A BR9408498A (pt) | 1993-12-23 | 1994-12-22 | Processo para a extração de cristais de grãos grossos de ácido silicico puro |
Country Status (12)
Country | Link |
---|---|
US (1) | US5730838A (pt) |
EP (1) | EP0736119B1 (pt) |
JP (1) | JPH09506936A (pt) |
CN (1) | CN1042359C (pt) |
AT (1) | AT401070B (pt) |
AU (1) | AU1267195A (pt) |
BR (1) | BR9408498A (pt) |
CA (1) | CA2179730A1 (pt) |
DE (1) | DE59403484D1 (pt) |
FI (1) | FI110791B (pt) |
HU (1) | HU219547B (pt) |
WO (1) | WO1995017547A1 (pt) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100396610C (zh) * | 2003-02-18 | 2008-06-25 | 雷吉斯特印度科学院 | 从稻壳灰生产沉淀二氧化硅的方法和装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4331507A (en) * | 1979-12-10 | 1982-05-25 | Dorr-Oliver Incorporated | Desilication in alkaline pulp processes |
IN154386B (pt) * | 1979-12-10 | 1984-10-20 | Dorr Oliver Inc | |
DE3003090A1 (de) * | 1980-01-29 | 1981-08-13 | Debendra Kumar Ph.D. Athinä Misra | Verfahren zur entkieselung alkalischer ablaugen |
US4504256A (en) * | 1981-03-09 | 1985-03-12 | Mitsuboshi Belting Ltd. | Variable V-belt |
DE3208200A1 (de) * | 1982-03-06 | 1983-09-08 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur kontinuierlichen entfernung von kieselsaeure aus zellstoffablaugen |
AT393284B (de) * | 1989-12-01 | 1991-09-25 | Waagner Biro Ag | Verfahren zur entkieselung der ablauge |
-
1993
- 1993-12-23 AT AT0260893A patent/AT401070B/de not_active IP Right Cessation
-
1994
- 1994-12-22 WO PCT/AT1994/000202 patent/WO1995017547A1/de active IP Right Grant
- 1994-12-22 AU AU12671/95A patent/AU1267195A/en not_active Abandoned
- 1994-12-22 JP JP7517049A patent/JPH09506936A/ja active Pending
- 1994-12-22 US US08/669,434 patent/US5730838A/en not_active Expired - Fee Related
- 1994-12-22 CN CN94194634A patent/CN1042359C/zh not_active Expired - Fee Related
- 1994-12-22 HU HU9601493A patent/HU219547B/hu not_active IP Right Cessation
- 1994-12-22 CA CA002179730A patent/CA2179730A1/en not_active Abandoned
- 1994-12-22 EP EP95903701A patent/EP0736119B1/de not_active Expired - Lifetime
- 1994-12-22 BR BR9408498A patent/BR9408498A/pt not_active Application Discontinuation
- 1994-12-22 DE DE59403484T patent/DE59403484D1/de not_active Expired - Fee Related
-
1996
- 1996-06-18 FI FI962528A patent/FI110791B/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH09506936A (ja) | 1997-07-08 |
EP0736119A1 (de) | 1996-10-09 |
FI962528A (fi) | 1996-06-18 |
WO1995017547A1 (de) | 1995-06-29 |
CN1139467A (zh) | 1997-01-01 |
CA2179730A1 (en) | 1995-06-29 |
DE59403484D1 (de) | 1997-09-04 |
HUT75968A (en) | 1997-05-28 |
FI110791B (fi) | 2003-03-31 |
AU1267195A (en) | 1995-07-10 |
HU9601493D0 (en) | 1996-07-29 |
US5730838A (en) | 1998-03-24 |
AT401070B (de) | 1996-06-25 |
HU219547B (hu) | 2001-05-28 |
CN1042359C (zh) | 1999-03-03 |
ATA260893A (de) | 1995-10-15 |
FI962528A0 (fi) | 1996-06-18 |
EP0736119B1 (de) | 1997-07-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR9403964A (pt) | Processo aperfeiçoado para a produção de ácido tereftálico | |
AU5482894A (en) | Process for the manufacture of pure amorphous silica from rocks | |
ITMI932628A0 (it) | Processo per la produzione di policarbonati alifatico-armatici | |
BR9404206A (pt) | Processo para a preparação de um composto indanil-amina compostos intermediários e processo para a preparação de compostos intermediários | |
BR9402087A (pt) | Processo para a produção de isocianatos puros e utilização | |
ITMI931295A0 (it) | Processo per la preparazione di cumene | |
GB2280436B (en) | Process for the crystallization of lopamidol | |
PT937068E (pt) | Processo para a cristalizacao de losartan | |
ITMI932478A0 (it) | Processo per la produzione di policarbonati | |
DE69839792D1 (de) | Verfahren zur Herstellung von hochreinen Erythritol-Kristallen | |
BR9406236A (pt) | Processo para a produção de difluoro-metano | |
BR9407090A (pt) | Processo para a preparação de N-(4-hidroxifenil)-retinamida | |
BR9301107A (pt) | Processo para a preparacao de um composto | |
BR9205129A (pt) | Processo para a preparacao de isocianatos puros | |
BR9305744A (pt) | Processo para produçao de crisais de diamante de matriz de metalofulerita e sólido metálico | |
BR9402877A (pt) | Processo para a preparação de peças de reposição dentárias | |
BR9609451A (pt) | Processo para a produção de azeoh enanciomericamente puro e composto | |
DE69430086D1 (de) | Fest-flüssig Sedimentationstrennungsanlage | |
BR9408498A (pt) | Processo para a extração de cristais de grãos grossos de ácido silicico puro | |
BR9811302B1 (pt) | processo para a purificação de ácido tereftálico bruto e processo aperfeiçoado para a separação de cristais de ácido tereftálico puro. | |
BR9201132A (pt) | Processo para a preparacao de indigo purificado | |
BR8806517A (pt) | Processo para a estabilizacao de aldeidos | |
BR9201867A (pt) | Processo para producao de chapas eletricas de grao orientado | |
ITMI931033A0 (it) | Processo per la preparazione di gemfibrozil | |
BR9301114A (pt) | Processo para producao de composto anidrido |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FF | Decision: intention to grant | ||
FA11 | Dismissal: dismissal - article 38, par. 2 of industrial property law |