CN1065471A - A kind of method of producing active carbon white - Google Patents
A kind of method of producing active carbon white Download PDFInfo
- Publication number
- CN1065471A CN1065471A CN 91101987 CN91101987A CN1065471A CN 1065471 A CN1065471 A CN 1065471A CN 91101987 CN91101987 CN 91101987 CN 91101987 A CN91101987 A CN 91101987A CN 1065471 A CN1065471 A CN 1065471A
- Authority
- CN
- China
- Prior art keywords
- raw material
- carbon black
- white carbon
- soft silica
- active carbon
- 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.)
- Granted
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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
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/126—Preparation of silica of undetermined type
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Processing Of Solid Wastes (AREA)
- Silicon Compounds (AREA)
Abstract
A kind of with contain the soft silica plant, mineral are the method for raw material production white carbon black, it is characterized in that producing white carbon black with aqueous sodium carbonate and raw material reaction.Present method raw material is easy to get, and technology is simple, and leaching liquid does not consume and can be recycled, and production cost is low, does not use strong acid, highly basic, and Working environment safety does not have environmental pollution.The product of present method has activity, and color is pure, can satisfy the needs of different purposes.
Description
The plant, the mineral that the present invention relates to contain soft silica are the method for raw material production white carbon black.
The traditional method of producing white carbon black at present both at home and abroad is the vapor phase process and the precipitator method.The domestic direct combustion method of a kind of rice husk of having released again recently.Vapor phase process can production high quality white carbon black, but the processing requirement strictness, and the production cost height can not adapt to every profession and trade multiple use dialogue sooty heavy demand.The precipitator method are main method of current domestic employing, and this method will consume a large amount of sodium hydroxide and strong acid, and cost is also higher.The direct combustion method of another kind of rice husk, equipment is simple, and production cost is low, but its product is difficult to that activity is arranged, and appearance color is poor, purposes is narrow, the easy again contaminate environment of combustion product gases.
The present invention proposes a kind of similar precipitator method, but from having changed the method for former technology in fact, produce white carbon black, production cost is reduced, and product has activity, color is pure, satisfies multi-purpose needs.
Present method invention is adopted carbide or the ashes after its burning of the plant (as rice husk, straw, wheat straw etc.) that contains soft silica and is contained the mineral of soft silica (as diatomite etc.) and is raw materials for production, feature of the present invention is to add yellow soda ash (or salt of wormwood) aqueous solution in raw material, heated and boiled is 1～2 hour in reactor, and following reaction takes place for soft silica in the raw material and sodium carbonate solution:
The solution that will boil filters, and filter residue can return and reuse.Filtrate has a large amount of SiO in process of cooling
2Gelatinous precipitate is separated out, and following chemical reaction takes place when separating out:
Precipitation is leached, and through washing, dry, pulverizing makes active carbon white.
Find out that from (1) and (2) formula yellow soda ash does not consume and can be used as leaching liquid and reuse in the filtrate.
The present invention compared with the prior art, it has concentrated the advantage of existing production method for white carbon black, has overcome their deficiency.Present method raw material is easy to get, technology is simple, and leaching liquid can be recycled, and production cost is low, does not use strong acid, highly basic, and Working environment safety does not have environmental pollution.The product of present method has activity, and color is pure, can satisfy the needs of different purposes.
With specific embodiment the present invention is described below.
Take by weighing 0.5 ton of charring rice husk and 8 meters
3Concentration is 10% aqueous sodium carbonate, puts into the reactor heated and boiled 1.5 hours.Filter then, filtrate is cooled off in settling bath and is separated out hydration SiO
2Gelatinous precipitate leaches precipitation, and washing 150 ℃ of oven dry down, obtains the white carbon black product to neutral after the pulverizing.
Claims (2)
1, a kind of is the method for raw material production white carbon black with the plant, the mineral that contain soft silica, it is characterized in that adding in the raw material yellow soda ash (or salt of wormwood) aqueous solution heated and boiled in reactor, following reaction takes place in soft silica in the raw material and sodium carbonate solution:
The solution that will boil filters, and filtrate has a large amount of SiO in process of cooling
2Gelatinous precipitate is separated out, and following reaction takes place when separating out:
With precipitation leach through washing, dry, pulverize and make active carbon white.
2, according to claim 1 described method, yellow soda ash does not consume as can be seen from reaction formula (2), can be used as leaching liquid and reuses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101987 CN1037834C (en) | 1991-03-29 | 1991-03-29 | Process of producing active white carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101987 CN1037834C (en) | 1991-03-29 | 1991-03-29 | Process of producing active white carbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1065471A true CN1065471A (en) | 1992-10-21 |
| CN1037834C CN1037834C (en) | 1998-03-25 |
Family
ID=4905362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91101987 Expired - Fee Related CN1037834C (en) | 1991-03-29 | 1991-03-29 | Process of producing active white carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037834C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037110C (en) * | 1993-06-18 | 1998-01-21 | 鞍山钢铁学院 | Method for producing silica white |
| CN101230212B (en) * | 2007-01-24 | 2012-08-22 | 沈阳化工股份有限公司 | White carbon black surface recombination modified preparation method |
| CN105600794A (en) * | 2015-12-31 | 2016-05-25 | 天津中科云健康装备科技有限公司 | Porous silicon dioxide and preparation method thereof |
-
1991
- 1991-03-29 CN CN 91101987 patent/CN1037834C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037110C (en) * | 1993-06-18 | 1998-01-21 | 鞍山钢铁学院 | Method for producing silica white |
| CN101230212B (en) * | 2007-01-24 | 2012-08-22 | 沈阳化工股份有限公司 | White carbon black surface recombination modified preparation method |
| CN105600794A (en) * | 2015-12-31 | 2016-05-25 | 天津中科云健康装备科技有限公司 | Porous silicon dioxide and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1037834C (en) | 1998-03-25 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |