GB393807A - Improvements in or relating to the production of bleaching clays - Google Patents
Improvements in or relating to the production of bleaching claysInfo
- Publication number
- GB393807A GB393807A GB24632/32A GB2463232A GB393807A GB 393807 A GB393807 A GB 393807A GB 24632/32 A GB24632/32 A GB 24632/32A GB 2463232 A GB2463232 A GB 2463232A GB 393807 A GB393807 A GB 393807A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clay
- hydrochloric acid
- salts
- employed
- mud
- 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
Links
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
Landscapes
- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Fats And Perfumes (AREA)
Abstract
A process of converting raw clays into bleaching-clays suitable for the treatment of mineral and vegetable oils, fats, and waxes, by bringing the raw clay into the state of a paste and subsequently boiling for many hours with a converting agent, is characterized in that, in addition to the free acids hitherto used, respective water-soluble salts of these acids are also used. For the production of clay of the same bleaching power, less acid is used than hitherto. The salts used may be contained in the solution produced in a prior conversion process and diluted if necessary. In this case, the solution is employed, together with additional salts if required, for producing the clay mud. Sodium, potassium, ferric, aluminium or alkaline earth chlorides or mixtures thereof are specified for use in conjunction with hydrochloric acid. With sulphuric acid, the corresponding sulphates are employed. In examples, clay is made into a mud with 10 DEG B<\>ae aluminium chloride or with 10 DEG B<\>ae waste liquor from a previous hydrochloric acid lixiviating process, and boiled for 10 hours with 18 DEG B<\>ae hydrochloric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE393807X | 1931-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB393807A true GB393807A (en) | 1933-06-15 |
Family
ID=6393618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24632/32A Expired GB393807A (en) | 1931-09-03 | 1932-09-03 | Improvements in or relating to the production of bleaching clays |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2018987A (en) |
| AT (1) | AT133921B (en) |
| GB (1) | GB393807A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2446273A (en) * | 1943-11-09 | 1948-08-03 | Filtrol Corp | Purification of sludge acid and activation of clays |
| US2582956A (en) * | 1948-02-05 | 1952-01-22 | Houdry Process Corp | Activating clay by roasting with admixed acid salts |
| US3148158A (en) * | 1961-12-29 | 1964-09-08 | Gen Aniline & Film Corp | Process of preparing acid activated clay catalyst |
| US5008226A (en) * | 1989-05-16 | 1991-04-16 | Engelhard Corporation | Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product |
| US5545599A (en) * | 1994-09-23 | 1996-08-13 | U.S. Borax, Inc. | Process for whitening kaolin |
| US5783511A (en) * | 1995-11-30 | 1998-07-21 | Oil-Dri Corporation Of America | Process for selecting raw material and making a bleaching clay |
| US6093669A (en) * | 1995-11-30 | 2000-07-25 | Oil-Dri Corporation Of America | Method for selecting raw material for bleaching clay |
| 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 |
| 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 |
| US6288003B1 (en) | 1999-06-21 | 2001-09-11 | Gimborn, Inc. | Processes for producing a bleaching clay product |
-
1932
- 1932-08-17 US US629241A patent/US2018987A/en not_active Expired - Lifetime
- 1932-09-02 AT AT133921D patent/AT133921B/en active
- 1932-09-03 GB GB24632/32A patent/GB393807A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2018987A (en) | 1935-10-29 |
| AT133921B (en) | 1933-06-26 |
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