WO2006032764A1 - Procede de purification d’une argile - Google Patents
Procede de purification d’une argile Download PDFInfo
- Publication number
- WO2006032764A1 WO2006032764A1 PCT/FR2005/002292 FR2005002292W WO2006032764A1 WO 2006032764 A1 WO2006032764 A1 WO 2006032764A1 FR 2005002292 W FR2005002292 W FR 2005002292W WO 2006032764 A1 WO2006032764 A1 WO 2006032764A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clay
- chemical treatment
- carried out
- treatment
- acid
- Prior art date
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
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/40—Clays
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/02—Medicinal preparations containing materials or reaction products thereof with undetermined constitution from inanimate materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/12—Antidiarrhoeals
Definitions
- the present invention relates to a method for purifying a clay for therapeutic use.
- This clay may be a smectite clay, beidellitic montmorillonite or attapulgite.
- Clay is a natural product known for its absorbency and adsorbency.
- Smectite clay marketed under the Smecta ® brand, is used for example in the symptomatic treatment of pain related to oesogastroduodenal and colic affections and acute and chronic diarrhea.
- the raw material generally containing only 30 to 60% of active ingredient, it is therefore essential to purify to obtain a pure clay in the pharmaceutical sense.
- a method for preparing a clay for therapeutic use is described in patent FR 2346017.
- the latter comprises the following major steps: a grinding step, a suspension in water, a chemical treatment of the suspension obtained with a acid until stabilization at pH 2-3, physical treatment in hydrocyclones and finally drying.
- the present invention therefore relates to a method for purifying a clay for a therapeutic use, the method comprising the following successive steps:
- a mechanical treatment of the raw clay it is a coarse grinding of the raw material to reduce the blocks to acceptable dimensions for the continuation of the process and to remove unwanted hard materials such as gravel;
- the chemical treatment is carried out by addition of a strong acid for stabilization at a pH of about 3-5.
- the clay thus obtained is a pure clay in the pharmaceutical sense.
- the process according to the present invention is implemented for clays containing alkaline earth carbonates, and more particularly the alkaline earth carbonates chosen from K 2 CO 3 , Na 2 CO 3 , MgCO 3 and CaCO 3 .
- the chemical treatment of a process according to the present invention is carried out at a pH of the order of 3.5-4.5, and very preferably at a pH of about 4-4. 5.
- the chemical treatment of a process according to the invention is carried out by addition of a strong mineral acid, and very preferably by addition of hydrochloric acid.
- the chemical treatment of a process according to the invention is carried out by addition of an acid in a ratio (amount of acid / amount of raw material) of between 0.010 to 0.020.
- a method according to the present invention therefore has the advantage of using less acid which allows to limit and / or eliminate acid releases and acid vapors. Moreover, this reduction in the acid consumption likely not only to degrade the clay but also the devices used, also has advantages for both the final product but also in terms of cost. All technical and scientific terms used in this text have the meaning known to those skilled in the art.
- the clay is suspended and then undergoes a granulometric treatment to reduce the clay to sufficiently fine particles.
- the suspension (20% in water) is stirred and -0 ⁇ 0-l-0-to-O / f-O-kg-d-aeide-hydrochloric-36% - is then-added-to-get-a-pH-value of order 3-5.
- the acid is added in excess to be sure to remove any carbonates that would be present.
- the complete neutralization of the carbonates is done by monitoring the pH value.
- the paste After the physical treatment with hydrocyclones and the return to a solid phase, the paste will be dried to thereby obtain a pure clay in the pharmaceutical sense.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Organic Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002580649A CA2580649A1 (fr) | 2004-09-17 | 2005-09-16 | Procede de purification d'une argile |
EA200700654A EA011845B1 (ru) | 2004-09-17 | 2005-09-16 | Способ очистки глины |
EP05802560A EP1799233A1 (fr) | 2004-09-17 | 2005-09-16 | Procede de purification d'ne argile |
MX2007003072A MX2007003072A (es) | 2004-09-17 | 2005-09-16 | Metodo de purificacion de arcilla. |
JP2007531799A JP5134956B2 (ja) | 2004-09-17 | 2005-09-16 | クレーの精製方法 |
BRPI0515333A BRPI0515333B8 (pt) | 2004-09-17 | 2005-09-16 | processo de purificação de uma argila para um uso terapêutico |
IL181981A IL181981A (en) | 2004-09-17 | 2007-03-15 | Process for purifying material for physician use |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0409835 | 2004-09-17 | ||
FR0409835A FR2875405B1 (fr) | 2004-09-17 | 2004-09-17 | Procede de purification d'une argile |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006032764A1 true WO2006032764A1 (fr) | 2006-03-30 |
Family
ID=34948816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/002292 WO2006032764A1 (fr) | 2004-09-17 | 2005-09-16 | Procede de purification d’une argile |
Country Status (13)
Country | Link |
---|---|
US (1) | US20070154568A1 (fr) |
EP (1) | EP1799233A1 (fr) |
JP (1) | JP5134956B2 (fr) |
CN (2) | CN1799555A (fr) |
BR (1) | BRPI0515333B8 (fr) |
CA (1) | CA2580649A1 (fr) |
EA (1) | EA011845B1 (fr) |
FR (1) | FR2875405B1 (fr) |
IL (1) | IL181981A (fr) |
MX (1) | MX2007003072A (fr) |
UA (1) | UA91030C2 (fr) |
WO (1) | WO2006032764A1 (fr) |
ZA (1) | ZA200702611B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012011133A1 (fr) * | 2010-07-21 | 2012-01-26 | Claudia Battaglino | Argile et procédé pour sa production |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101295204B1 (ko) * | 2009-01-08 | 2013-08-09 | 하이리성 파마수티컬 컴퍼니 리미티드 | 개질된 소듐-몬모릴로나이트, 그의 제조 방법 및 용도 |
RU2520434C1 (ru) * | 2013-04-05 | 2014-06-27 | Закрытое акционерное общество "МЕТАКЛЭЙ" (ЗАО "МЕТАКЛЭЙ") | Способ очистки немодифицированного бентонита на основе монтмориллонита |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3041238A (en) * | 1958-08-06 | 1962-06-26 | Minerals & Chem Philipp Corp | Method of preparing activated attapulgite |
FR2346017A1 (fr) * | 1975-10-23 | 1977-10-28 | Rech Applic Scient | Composition therapeutique pour le traitement des affections du tractus gastro-intestinal |
FR2526004A1 (fr) * | 1982-04-29 | 1983-11-04 | Scras | Nouvelles argiles ameliorees et leur procede de preparation |
-
2004
- 2004-09-17 FR FR0409835A patent/FR2875405B1/fr not_active Expired - Lifetime
-
2005
- 2005-09-16 UA UAA200704224A patent/UA91030C2/ru unknown
- 2005-09-16 EA EA200700654A patent/EA011845B1/ru not_active IP Right Cessation
- 2005-09-16 CA CA002580649A patent/CA2580649A1/fr not_active Abandoned
- 2005-09-16 CN CNA2005101132884A patent/CN1799555A/zh active Pending
- 2005-09-16 BR BRPI0515333A patent/BRPI0515333B8/pt active IP Right Grant
- 2005-09-16 CN CNA2005800312498A patent/CN101022815A/zh active Pending
- 2005-09-16 MX MX2007003072A patent/MX2007003072A/es active IP Right Grant
- 2005-09-16 EP EP05802560A patent/EP1799233A1/fr not_active Withdrawn
- 2005-09-16 JP JP2007531799A patent/JP5134956B2/ja active Active
- 2005-09-16 WO PCT/FR2005/002292 patent/WO2006032764A1/fr active Application Filing
-
2007
- 2007-03-14 US US11/686,233 patent/US20070154568A1/en not_active Abandoned
- 2007-03-15 IL IL181981A patent/IL181981A/en active IP Right Grant
- 2007-03-28 ZA ZA200702611A patent/ZA200702611B/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3041238A (en) * | 1958-08-06 | 1962-06-26 | Minerals & Chem Philipp Corp | Method of preparing activated attapulgite |
FR2346017A1 (fr) * | 1975-10-23 | 1977-10-28 | Rech Applic Scient | Composition therapeutique pour le traitement des affections du tractus gastro-intestinal |
FR2526004A1 (fr) * | 1982-04-29 | 1983-11-04 | Scras | Nouvelles argiles ameliorees et leur procede de preparation |
Non-Patent Citations (6)
Title |
---|
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; 15 April 1995 (1995-04-15), PEREIRA NETO, JOSE ET AL: "Attapulgite from Piaui State for the pharmaceutical industry", XP002315822, retrieved from STN Database accession no. 122:196932 * |
DATABASE COMPENDEX [online] ENGINEERING INFORMATION, INC., NEW YORK, NY, US; MIRSAIDOV U ET AL: "Application of bentonite clays for softening of natural waters", XP002315823, Database accession no. E2004047828228 * |
JOYNT B P ET AL: "THE EFFECT OF CALCIUM IN CALCIUM-RICH CLAYS ON THE STABILITY OF PECTIN-CLAY THERAPEUTIC SUSPENSIONS", CANADIAN JOURNAL OF PHARMACEUTICAL SCIENCES, CANADIAN PHARMACEUTICAL ASSOCIATION, TORONTO, CA, vol. 3, no. 4, 1968, pages 93 - 96, XP008042026, ISSN: 0008-4190 * |
KHIM TEKHNOL VODY; KHIMIYA I TEKHNOLOGIYA VODY 2003, vol. 25, no. 5, 2003, pages 497 - 501 * |
RABENHORST M C ET AL: "RAPID METHOD TO OBTAIN CARBONATE-FREE RESIDUES FROM LIMESTONE AND PETROCALCIC MATERIALS", SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, vol. 48, no. 1, January 1984 (1984-01-01), pages 216 - 219, XP008042052 * |
TECNOLOGIA MINERAL , 64, 1-22 CODEN: TEMIEL; ISSN: 0103-7382, 1993 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012011133A1 (fr) * | 2010-07-21 | 2012-01-26 | Claudia Battaglino | Argile et procédé pour sa production |
Also Published As
Publication number | Publication date |
---|---|
UA91030C2 (ru) | 2010-06-25 |
FR2875405A1 (fr) | 2006-03-24 |
MX2007003072A (es) | 2007-05-21 |
CN1799555A (zh) | 2006-07-12 |
IL181981A (en) | 2013-05-30 |
BRPI0515333A (pt) | 2008-07-22 |
US20070154568A1 (en) | 2007-07-05 |
EP1799233A1 (fr) | 2007-06-27 |
CN101022815A (zh) | 2007-08-22 |
BRPI0515333B8 (pt) | 2021-05-25 |
ZA200702611B (en) | 2008-07-30 |
CA2580649A1 (fr) | 2006-03-30 |
JP2008513329A (ja) | 2008-05-01 |
EA011845B1 (ru) | 2009-06-30 |
JP5134956B2 (ja) | 2013-01-30 |
IL181981A0 (en) | 2007-07-04 |
EA200700654A1 (ru) | 2007-08-31 |
FR2875405B1 (fr) | 2007-01-19 |
BRPI0515333B1 (pt) | 2019-11-26 |
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