GB450044A - A process for the preparation of coal by flotation - Google Patents
A process for the preparation of coal by flotationInfo
- Publication number
- GB450044A GB450044A GB14987/35A GB1498735A GB450044A GB 450044 A GB450044 A GB 450044A GB 14987/35 A GB14987/35 A GB 14987/35A GB 1498735 A GB1498735 A GB 1498735A GB 450044 A GB450044 A GB 450044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- constituents
- reactive
- inert
- addition
- 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
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/06—Froth-flotation processes differential
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Coal is separated into its reactive and inert constituents by disintegrating the coal to a degree sufficient to release the two types of constituents, forming the disintegrated coal into a slime with water and a soluble oxidizing agent such as nitric acid, sulphuric acid, hydrogen peroxide, or potassium permanganate, and then floating off the inert constituents by the addition of a p frothing agent such as phenol, aniline, or alcohol. The reactive constituents are subsequently floated with the aid of a known coal collector such as coal tar oil. The action of the oxidizing agent in temporarily inhibiting the flotation of the reactive constituents may be reinforced by the addition of an aliphatic or aromatic hydrocarbon compounds having several terminal groups, such as COOH, NH2CO, or OH, possessing an affinity for water, e.g. hydroquinone, or by the addition of humic acid, lignin sulpho acid, or their derivatives, e.g. cellulose sulphite lye. To release the reactive and inert constituents, the former comprising the humins and bitumens, it is usually necessary to grind the coal to a greater extent than that necessary to free the petrographic constituents, viz. anthracite, dull coal, and fibrous coal. The separation of a pure dull coal into reactive and inert constituents is described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE789280X | 1934-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB450044A true GB450044A (en) | 1936-07-09 |
Family
ID=6699642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14987/35A Expired GB450044A (en) | 1934-05-30 | 1935-05-22 | A process for the preparation of coal by flotation |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE619239C (en) |
FR (1) | FR789280A (en) |
GB (1) | GB450044A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5008006A (en) * | 1987-06-05 | 1991-04-16 | Miller Jan D | Chemical conditioning of fine coal for improved flotation and pyrite rejection |
CN111589590A (en) * | 2020-05-27 | 2020-08-28 | 上海是大高分子材料有限公司 | Flotation method for oxidized coal slime |
CN112588450A (en) * | 2020-11-26 | 2021-04-02 | 江西省三汇科技有限公司 | Humic acid-containing beneficiation inhibitor and application method thereof |
CN113333177A (en) * | 2021-05-20 | 2021-09-03 | 中国恩菲工程技术有限公司 | Combined inhibitor for separating copper sulfide ore containing secondary copper and separation method |
-
1934
- 1934-05-31 DE DEB165649D patent/DE619239C/en not_active Expired
-
1935
- 1935-04-26 FR FR789280D patent/FR789280A/en not_active Expired
- 1935-05-22 GB GB14987/35A patent/GB450044A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5008006A (en) * | 1987-06-05 | 1991-04-16 | Miller Jan D | Chemical conditioning of fine coal for improved flotation and pyrite rejection |
CN111589590A (en) * | 2020-05-27 | 2020-08-28 | 上海是大高分子材料有限公司 | Flotation method for oxidized coal slime |
CN111589590B (en) * | 2020-05-27 | 2021-11-19 | 上海是大高分子材料有限公司 | Flotation method for oxidized coal slime |
CN112588450A (en) * | 2020-11-26 | 2021-04-02 | 江西省三汇科技有限公司 | Humic acid-containing beneficiation inhibitor and application method thereof |
CN113333177A (en) * | 2021-05-20 | 2021-09-03 | 中国恩菲工程技术有限公司 | Combined inhibitor for separating copper sulfide ore containing secondary copper and separation method |
Also Published As
Publication number | Publication date |
---|---|
FR789280A (en) | 1935-10-25 |
DE619239C (en) | 1935-09-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB441331A (en) | Process for de-inking imprinted paper | |
GB450044A (en) | A process for the preparation of coal by flotation | |
US1667277A (en) | Treatment of fine coal | |
US1497699A (en) | Concentration of ores | |
GB498450A (en) | Improvements in or relating to processes of concentrating minerals from their ores | |
US2202039A (en) | Process for the removal of mercaptans from hydrocarbon distillates | |
US1830908A (en) | Process of concentrating ores | |
US1833957A (en) | Method of flotation | |
US2242289A (en) | Method of preparation of a soap | |
US2690259A (en) | Froth flotation of iron sulfide ore | |
US1944529A (en) | Flotation process | |
SU50435A1 (en) | The method of separation of sulfonic acids contained in acid tars | |
GB478275A (en) | Improvements in the separation of cement raw materials or the like by flotation | |
US1933410A (en) | Treatment of waste products obtained in the refining of hydrocarbon material | |
SU52163A1 (en) | Method of de-tarting peat but-podmolnoy water | |
GB513541A (en) | A process for refining phenols | |
US2128570A (en) | Flotation material | |
GB242092A (en) | Improvements in methods of separating phenols from crude oils | |
GB458486A (en) | Improvements in or relating to the production of dispersions of solid carbonaceous matter in oil | |
US2787594A (en) | Spinning oil composition | |
GB411342A (en) | Process for the manufacture of carbon electrodes | |
GB496607A (en) | Process and means for the enrichment of natural and industrial mixtures of hydrocarbons in aromatic hydrocarbons and for the elimination of the resin-producing constituents therefrom | |
US1364858A (en) | Flotation of minerals | |
SU50627A1 (en) | The method of obtaining flotation oil from turpentine | |
US2144115A (en) | Pigment purification |