US1455995A - Bleaching earth - Google Patents
Bleaching earth Download PDFInfo
- Publication number
- US1455995A US1455995A US539714A US53971422A US1455995A US 1455995 A US1455995 A US 1455995A US 539714 A US539714 A US 539714A US 53971422 A US53971422 A US 53971422A US 1455995 A US1455995 A US 1455995A
- Authority
- US
- United States
- Prior art keywords
- bleaching
- acid
- bleaching earth
- earth
- aid
- 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 - Lifetime
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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
- B01J20/12—Naturally occurring clays or bleaching earth
Definitions
- Patentd ay 22, 1923 Patentd ay 22, 1923.
- Such mineral .matters consist inthe main of aluminium hydrosilimites and are found in large quantities invarious places. They. are. known in trade under such names asForida earth, florldin,
- thecrude material . is treated with hydrochloric acid of about 15% strength.
- This operation known. asopening u generally lasts for two hours, and is roan $0 med out at boiling temperature, that is "to say, by continuous'injectioniof. steam.
- this openin up can be achieved in a surprisingly short time by emulsifying the material with an acid of 1% strength in :the cold.
- This emulsification or homo eniaing may be :effected for instance wit the .aid of ilmown homogenizing :Pparatus, comprisingrat least one centri'fug wheel as, for-instance, 1a 40 turbomixergcapable'of producing emuilsk ficaition of an .i'ntensit'ysufiicientto enhance notably, .byitself, :the. bleaching A lication iuea Februaryi 27,1t22 .w-Serial ml ssa'm.
- a process for obtaining bleaching treating aluminiumjhydro-silicates with an acid consisting in mixing the aluminium hydro-silicates with ,dilute hydrochloric acid 1 and emulsifying the resulting mixture intenselg in the cold.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Detergent Compositions (AREA)
Description
Patentd ay 22, 1923.
si" as CARL CBAM BQ OF. ZURZACH, SWITZERLAND.
I'IBILEACEING EARTH.
- No Drawing.
.To whom; it may concern: Be it lmown that I, CARL CRAMER, acitizen of the Swiss Republic, and resident Gaze tities of earthy matters having ,bleac ing' properties are used. Such mineral .matters consist inthe main of aluminium hydrosilimites and are found in large quantities invarious places. They. are. known in trade under such names asForida earth, florldin,
fullers earth. Fre uentl however, it is. not y the natural materi which is used,' this material being first subjected to-a relimina 'y treatment. Such treatment is or the purpose of enhancing the bleaching: power of the mineral; it may consist in cautious heating to expel h groscopic Water, or in treating the minera with an acid such as hydrochlo- I iearths having a high bleaching effect by ricor sulfuric acid. Products of this kind are those known as tonsil and frankonit.
In practice, thecrude material .is treated with hydrochloric acid of about 15% strength. This operation known. asopening u generally lasts for two hours, and is roan $0 med out at boiling temperature, that is "to say, by continuous'injectioniof. steam.
According to the present invention, this openin up can be achieved in a surprisingly short time by emulsifying the material with an acid of 1% strength in :the cold. This emulsification or homo eniaing may be :effected for instance wit the .aid of ilmown homogenizing :Pparatus, comprisingrat least one centri'fug wheel as, for-instance, 1a 40 turbomixergcapable'of producing emuilsk ficaition of an .i'ntensit'ysufiicientto enhance notably, .byitself, :the. bleaching A lication iuea Februaryi 27,1t22 .w-Serial ml ssa'm.
power of the aluminium hydrosilicates, even when thelremulsifying would be performed with ewater alone, that lSatO say, without the v .aid of an acid. The product thus prepared is particularly well'o .ened up both chemi-- vcally and. physically as av more powerful bleaching efl'ect'ithan anyiof the known prod- 'ucts. Apart from'thisimportant fact, there' is the great-a,dvantageiin:practice that fuel and the greater part of the acid hitherto used are saved. 4 t y The followingexamplejillustrates the in-. ventionz- 1,000- kilos .of ad aearth ofthe kind in question are'stirred with3,000 litres of hy-. drochloric acidof 1%:strength in a wooden vat. provided with a-stirrer, and are emulsified with the aid-of .the-lknown turbo mixer. After ten minutes the charge is drained, washed with water and then dried in a d ing oven.
'l Vhat I claim is 1. A process for obtaining bleaching treating aluminiumjhydro-silicates with an acid, consisting in mixing the aluminium hydro-silicates with ,dilute hydrochloric acid 1 and emulsifying the resulting mixture intenselg in the cold. g
2. new products, "bleaching-earths having ahigh bleaching efi'ect, the rsaid bleaching earths having been opened up chemically and physically by their emulsificaztion with dilute .hydrochlor iczacid in :the cold, substanltially as set forth. A
In witness whereo'fil have hereunto signed my nazmeithis 'ififlfih'daybf February, 1922, in the presence oftwoisubscribiarg witnesses.
Witnesses: i
Fzmno IK iii magm
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US539714A US1455995A (en) | 1922-02-27 | 1922-02-27 | Bleaching earth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US539714A US1455995A (en) | 1922-02-27 | 1922-02-27 | Bleaching earth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1455995A true US1455995A (en) | 1923-05-22 |
Family
ID=24152348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US539714A Expired - Lifetime US1455995A (en) | 1922-02-27 | 1922-02-27 | Bleaching earth |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1455995A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288003B1 (en) | 1999-06-21 | 2001-09-11 | Gimborn, Inc. | Processes for producing a bleaching clay product |
| US6489260B2 (en) | 1999-06-21 | 2002-12-03 | Sud-Chemie Inc. | Processes for producing a bleaching clay product and bleaching clay products produced by those processes |
| US6569798B2 (en) | 1999-06-21 | 2003-05-27 | Sud-Chemie Adsorbents, Inc. | Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes |
-
1922
- 1922-02-27 US US539714A patent/US1455995A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288003B1 (en) | 1999-06-21 | 2001-09-11 | Gimborn, Inc. | Processes for producing a bleaching clay product |
| US6489260B2 (en) | 1999-06-21 | 2002-12-03 | Sud-Chemie Inc. | Processes for producing a bleaching clay product and bleaching clay products produced by those processes |
| US6569798B2 (en) | 1999-06-21 | 2003-05-27 | Sud-Chemie Adsorbents, Inc. | Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes |
| US6759359B1 (en) | 1999-06-21 | 2004-07-06 | Sud-Chemie Inc. | Processes for producing a bleaching clay product |
| US6762144B1 (en) | 1999-06-21 | 2004-07-13 | Sud-Chemie Adsorbents, Inc. | Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes |
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