CN104556255A - Technology for preparing polysilicate aluminum ferric chloride from red mud of aluminum plant - Google Patents
Technology for preparing polysilicate aluminum ferric chloride from red mud of aluminum plant Download PDFInfo
- Publication number
- CN104556255A CN104556255A CN201310487446.7A CN201310487446A CN104556255A CN 104556255 A CN104556255 A CN 104556255A CN 201310487446 A CN201310487446 A CN 201310487446A CN 104556255 A CN104556255 A CN 104556255A
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- CN
- China
- Prior art keywords
- red mud
- aluminum
- technology
- ferric chloride
- aluminium
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a technology for preparing polysilicate aluminum ferric chloride from red mud of an aluminum plant. The technology comprises steps as follows: (1) 1.2-1.5 t of hydrochloric acid with the mass concentration of 10-31% and 0.1-0.2 t of sulfuric acid with the mass concentration of 98% are placed in a pressure-resistant PTFE reaction kettle to be mixed, then 0.5-0.8 t of the red mud and 100-200 kg of aluminum ash are put into the kettle, and the kettle is heated to the temperature of 100-120 DEG C and pressurized to 3-5 kg/cm<2> for reactions for 3-5 h; (2) a reaction liquid is cooled to be at the room temperature, the pH value is adjusted to 3.5 with alkali liquor, and a polysilicate aluminum ferric chloride liquid is prepared. The technology has the significant advantages that the source of raw materials is wide and waste is utilized.
Description
Technical field:
The present invention relates to a kind of production technique of purifying agent for polluted water, particularly a kind of technique preparing polyaluminium aluminium iron silicate with aluminium manufacturer's red mud.
Background technology:
The raw materials cost of the scavenging agent of existing production polyaluminium aluminium iron silicate is higher.
Summary of the invention:
The present invention seeks to propose the technique that a kind of raw material sources are wide and cost is low a kind of aluminium manufacturer red mud prepares polyaluminium aluminium iron silicate.
The technical scheme realizing the object of the invention is, a kind of technique preparing polyaluminium aluminium iron silicate with aluminium manufacturer's red mud, it is characterized in that there are following steps: the sulfuric acid (1), by 1.2-1.5 ton mass concentration be the hydrochloric acid of 10-31% being 98% with the mass concentration of 0.1-0.2 ton is placed in after the withstand voltage reactor of polytetrafluoro mixes, drop into 0.5-0.8 ton red mud and 100-200 kilogram of aluminium ash, be warming up to 100-120 DEG C and boost to 3-5 Gong Jin/㎝
2, reaction 3-5 hour,
(2), by above-mentioned reaction solution being cooled to room temperature lye pH adjustment value is 3.5, namely makes polyaluminium aluminium iron silicate liquid.
The present invention has the remarkable advantage of the wide and utilization of waste material of raw material sources compared with the prior art.
Embodiment:
The red mud amount of aluminium manufacturer becomes very greatly the burden of aluminium manufacturer's process, and containing the aluminum oxide of 20% in red mud, the silicon oxide of 18% and the iron of 6% are a kind of raw materials producing polyaluminium aluminium iron silicate.The present invention has following examples:
Embodiment 1,
(1) the sulfuric acid, by 1.2 tons of mass concentrations be the hydrochloric acid of 10% being 98% with the mass concentration of 0.1 ton is placed in after the withstand voltage reactor of polytetrafluoro mixes, and drops into 0.5 ton of red mud and 100 kilograms of aluminium ashes, is warming up to 100-120 DEG C and boost to 3 Gong Jin/㎝
2, reaction 3-5 hour,
(2), by above-mentioned reaction solution being cooled to room temperature lye pH adjustment value is 3.5, namely makes polyaluminium aluminium iron silicate liquid.
Embodiment 2,
(1) the sulfuric acid, by 1.3 tons of mass concentrations be the hydrochloric acid of 20% being 98% with the mass concentration of 0.15 ton is placed in after the withstand voltage reactor of polytetrafluoro mixes, and drops into 0.6 ton of red mud and 150 kilograms of aluminium ashes, is warming up to 100-120 DEG C and boost to 4 Gong Jin/㎝
2, reaction 3-5 hour,
(2), by above-mentioned reaction solution being cooled to room temperature lye pH adjustment value is 3.5, namely makes polyaluminium aluminium iron silicate liquid.
Embodiment 3,
(1) the sulfuric acid, by 1.5 tons of mass concentrations be the hydrochloric acid of 31% being 98% with the mass concentration of 0.2 ton is placed in after the withstand voltage reactor of polytetrafluoro mixes, and drops into 0.8 ton of red mud and 200 kilograms of aluminium ashes, is warming up to 100-120 DEG C and boost to 5 Gong Jin/㎝
2, reaction 3-5 hour,
(2), by above-mentioned reaction solution being cooled to room temperature lye pH adjustment value is 3.5, namely makes polyaluminium aluminium iron silicate liquid.
Claims (1)
1. prepare the technique of polyaluminium aluminium iron silicate with aluminium manufacturer's red mud for one kind, it is characterized in that there are following steps: the sulfuric acid (1), by 1.2-1.5 ton mass concentration be the hydrochloric acid of 10-31% being 98% with the mass concentration of 0.1-0.2 ton is placed in after the withstand voltage reactor of polytetrafluoro mixes, drop into 0.5-0.8 ton red mud and 100-200 kilogram of aluminium ash, be warming up to 100-120 DEG C and boost to 3-5 Gong Jin/㎝
2, reaction 3-5 hour,
(2), by above-mentioned reaction solution being cooled to room temperature lye pH adjustment value is 3.5, namely makes polyaluminium aluminium iron silicate liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310487446.7A CN104556255A (en) | 2013-10-18 | 2013-10-18 | Technology for preparing polysilicate aluminum ferric chloride from red mud of aluminum plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310487446.7A CN104556255A (en) | 2013-10-18 | 2013-10-18 | Technology for preparing polysilicate aluminum ferric chloride from red mud of aluminum plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104556255A true CN104556255A (en) | 2015-04-29 |
Family
ID=53073460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310487446.7A Pending CN104556255A (en) | 2013-10-18 | 2013-10-18 | Technology for preparing polysilicate aluminum ferric chloride from red mud of aluminum plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104556255A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1484671A (en) * | 1973-11-16 | 1977-09-01 | Alcan Res & Dev | Composition for treatment of waste waters and process for making same |
| KR20060079293A (en) * | 2004-12-30 | 2006-07-06 | 태광케미칼 주식회사 | Method for production of inorganic coagulant utilizing red mud |
| CN102583675A (en) * | 2012-03-02 | 2012-07-18 | 杨祺 | Method for producing poly-silicone sulfuric acid rare earth ferroaluminum with Byer process red mud and sludge containing rear earth |
| CN103086489A (en) * | 2013-02-07 | 2013-05-08 | 天津水泥工业设计研究院有限公司 | Method for preparing flocculant polyaluminum ferric chloride from red mud |
-
2013
- 2013-10-18 CN CN201310487446.7A patent/CN104556255A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1484671A (en) * | 1973-11-16 | 1977-09-01 | Alcan Res & Dev | Composition for treatment of waste waters and process for making same |
| KR20060079293A (en) * | 2004-12-30 | 2006-07-06 | 태광케미칼 주식회사 | Method for production of inorganic coagulant utilizing red mud |
| CN102583675A (en) * | 2012-03-02 | 2012-07-18 | 杨祺 | Method for producing poly-silicone sulfuric acid rare earth ferroaluminum with Byer process red mud and sludge containing rear earth |
| CN103086489A (en) * | 2013-02-07 | 2013-05-08 | 天津水泥工业设计研究院有限公司 | Method for preparing flocculant polyaluminum ferric chloride from red mud |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |