CN104150516A - Method for preparing liquid polyaluminum chloride by using pure calcium aluminate powder - Google Patents
Method for preparing liquid polyaluminum chloride by using pure calcium aluminate powder Download PDFInfo
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- CN104150516A CN104150516A CN201410338561.2A CN201410338561A CN104150516A CN 104150516 A CN104150516 A CN 104150516A CN 201410338561 A CN201410338561 A CN 201410338561A CN 104150516 A CN104150516 A CN 104150516A
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Abstract
The invention discloses a method for preparing liquid polyaluminum chloride by using pure calcium aluminate powder. The method comprises the following steps: (1) adding 14.91-28.44 parts by weight of water and 13.56-27.09 parts by weight of industrial hydrochloric acid into an acid-resistant reaction vessel, and uniformly stirring to obtain reaction liquid of which the acidity content is 10-20% based on HCl; (2) slowly adding 7-10 parts by weight of pure calcium aluminate powder, completely feeding the pure calcium aluminate powder for 20-30 minutes, continuously stirring, maintaining the reaction temperature at 100-105 DEG C, and controlling the reaction time to be 2 hours; (4) standing or performing pressure filtration on liquid obtained in the step 2 after reacting, and extracting supernatant liquor or the liquid subjected to pressure filtration to obtain a finished product namely liquid polyaluminum chloride. According to liquid polyaluminum chloride prepared by adopting the method disclosed by the invention, the pure calcium aluminate powder only contains about 2% of insoluble substances, so that the aim of avoiding slag in the production of liquid polyaluminum chloride products can be achieved, and a slag removal process can be eliminated; liquid polyaluminum chloride achieves high basicity, can be used for actually reducing aluminum residues, and can ensure that the heavy metal content is much lower than the requirements of <Polyaluminum Chloride for Domestic Drinking Water> GB15892-2009.
Description
Technical field
The present invention relates to water purification agent preparation method technical field, particularly the pure calcium aluminate powder of a kind of use is prepared the method for liquid poly aluminium chloride.
Background technology
Poly aluminium chloride is a kind of efficient water-purifying agent, be widely used in town and country tap water water supply purification, the industrial sewage purifications such as service water and industrial circulating water purification and sanitary sewage, pharmacy, papermaking and printing and dyeing, have adding less, cost is low, purifying the feature of efficient stable, is one of environmentfriendly products of giving priority to of the national Tenth Five-year plan.
The production synthetic process of domestic poly aluminium chloride is more, and wherein low-quality poly aluminium chloride adopts normal pressure technique to produce mostly, and high-quality poly aluminium chloride mostly adopts pressing technology to produce.Low-quality poly aluminium chloride non-pressure process is mainly synthetic with calcium aluminate powder, exists level of automation low, and labour intensity is large, and product purity is low, and product waste residue amount is large, the problem that environmental pollution is serious; High-quality poly aluminium chloride pressing technology, mainly with aluminium hydroxide high temperature and high pressure synthesis, due to production process High Temperature High Pressure, relates to the equipment such as reactor and boiler, because of corrosion problems, there is potential safety hazard, investment of production equipment is large, change frequently, simultaneously high to operational requirement, but product purity is high.
Summary of the invention
The object of this invention is to provide the pure calcium aluminate powder of a kind of use and prepare the method for liquid poly aluminium chloride, in producing for existing poly aluminium chloride, need heating, produce in waste residue and finished product the problems such as aluminium is residual, adopt pure calcium aluminate powder and technical hydrochloric acid direct reaction to prepare liquid poly aluminium chloride.
Technical scheme of the present invention is: the pure calcium aluminate powder of a kind of use is prepared the method for liquid poly aluminium chloride, comprises the steps:
(1) in acid tolerance response container, part add water 14.91～28.44 according to quantity, technical hydrochloric acid 13.56～27.09 weight parts, stir, in the acidity content of reaction solution after Hcl sour water mixed solution 10～20%;
(2) continue in acid tolerance response container, slowly to add pure calcium aluminate powder 7～10 weight parts, within 20-30 minute, finish pure calcium aluminate powder, stir, keep temperature of reaction at 100～105 degree, 2 hours reaction times, obtain a kind of reaction solution,
(3) described reaction solution is left standstill or press filtration, extract the liquid after supernatant liquid or press filtration, obtain the liquid poly aluminium chloride of finished product.
Described technical hydrochloric acid is in acidity content >=31% of Hcl.
In described pure calcium aluminate powder, aluminium sesquioxide quality percentage composition is 60～69%, and calcium oxide quality percentage composition is 30～39%.
Whole preparation process is to carry out under atmospheric pressure state.
Principle of Process:
Prepare liquid poly aluminium chloride with pure calcium aluminate powder and technical hydrochloric acid, whole preparation process is in acid tolerance response container, to carry out under atmospheric pressure state, under the fixing condition of pure calcium aluminate powder input amount, the basicity of product can be controlled by the acidity adjustment of reaction solution, in Hcl at reaction solution acidity content in 10～20% scopes, the variation relation of basicity and such as reaction acidity is inverse correlation relation, and basicity raises and reduces with reaction solution acidity; Simultaneously the acid non-soluble substance content of pure calcium aluminate powder is low, and pure calcium aluminate powder input amount is fixed, and makes the insolubles index of liquid poly aluminium chloride low and can quantitatively calculate.The insolubles of pure calcium aluminate powder, only in 2% left and right, reduces aluminium residual conscientiously; Heavy metal content is well below the requirement of GB15892-2009 " Drinking Water poly aluminium chloride "; Calculate by producing aluminium sesquioxide 10% content poly aluminium chloride, poly aluminium chloride insolubles index can reach the requirement of GB15892-2009 " Drinking Water poly aluminium chloride " and HG/T2677-2009 " industrial poly aluminium chloride " without press filtration, be applicable to tap water and paper-making sizing.
The outstanding technique effect of the present invention is:
1, equipment is simple, only needs to invest acid tolerance response container, stirring system and acid mist absorption system;
2, under normal temperature and pressure conditions, react, safe and reliable;
3, spontaneous heating reaction, without heating, saves boiler, steam and corresponding pipeline, safe, energy-conservation, low consumption.
4, step is simple, only needs the complex acid reaction that can directly feed intake, and saves manpower, significantly improves output, in the situation that human cost sharply rises, with the obvious advantage.
5, can adjust acidity according to different demands, produce different basicities, different content product, steady quality is reliable.
6, production process does not produce waste residue, exempts the environmental stress that waste residue processing brings.
Brief description of the drawings
Fig. 1 is the method process flow sheet that the pure calcium aluminate powder of use of the present invention is directly prepared liquid poly aluminium chloride.
Embodiment
By the following examples technical scheme of the present invention is described further.
Embodiment 1
The pure calcium aluminate powder of use of the present invention is directly prepared method first example of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 14.91 tons;
2, after water injection, then in retort, add acidity to count 27.09 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 20% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.30%, and basicity is 59.59%, and insolubles quality mark is 0.09%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 2
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 16.25 tons;
2, after water injection, then in retort, add acidity to count 25.75 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 19% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.34%, and basicity is 68.02%, and insolubles quality mark is 0.08%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 3
The pure calcium aluminate powder of use of the present invention is directly prepared a method example again of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride.
1, in the acid tolerance response tank of 60 cubes, add the water of 17.61 tons;
2, after water injection, then in retort, add acidity to count 24.39 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 18% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.31%, and basicity is 68.33%, and insolubles quality mark is 0.09%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 4
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 18.96 tons;
2, after water injection, then in retort, add acidity to count 23.04 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 17% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.33%, and basicity is 68.37%, and insolubles quality mark is 0.08%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 5
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 20.31 tons;
2, after water injection, then in retort, add acidity to count 21.69 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 16% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.28%, and basicity is 70.18%, and insolubles quality mark is 0.07%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 6
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 21.67 tons;
2, after water injection, then in retort, add acidity to count 20.33 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 15% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.27%, and basicity is 72.49%, and insolubles quality mark is 0.08%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 7
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 23.02 tons;
2, after water injection, then in retort, add acidity to count 18.98 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 14% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.32%, and basicity is 77.04%, and insolubles quality mark is 0.09%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 8
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 24.38 tons;
2, after water injection, then in retort, add acidity to count 17.62 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 13% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.29%, and basicity is 81.82%, and insolubles quality mark is 0.08%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 9
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 25.73 tons;
2, after water injection, then in retort, add acidity to count 16.27 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 12% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.33%, and basicity is 85.55%, and insolubles quality mark is 0.08%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 10
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 27.09 tons;
2, after water injection, then in retort, add acidity to count 14.91 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 11% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.29%, and basicity is 86.33%, and insolubles quality mark is 0.08%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 11
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 50 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 65% and calcium oxide content be 33% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 28.44 tons;
2, after water injection, then in retort, add acidity to count 13.56 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 10% with Hcl content;
4, in the mixed solution stirring, slowly add 8 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide massfraction in gained poly aluminium chloride is 10.28%, and basicity is 87.86%, and insolubles quality mark is 0.09%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 12
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 49.2 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 69% and calcium oxide content be 30% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 17.61 tons;
2, after water injection, then in retort, add acidity to count 24.39 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 18% with Hcl content;
4, in the mixed solution stirring, slowly add 7 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide mass percent in gained poly aluminium chloride is 10.09%, and basicity is 68.39%, and insolubles quality percentage ratio is 0.08%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 13
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of method of liquid poly aluminium chloride, comprises the steps:
With 49.2 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 69% and calcium oxide content be 30% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 27.09 tons;
2, after water injection, then in retort, add acidity to count 14.91 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 11% with Hcl content;
4, in the mixed solution stirring, slowly add 7 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide mass percent in gained poly aluminium chloride is 10.02%, and basicity is 88.22%, and insolubles quality percentage ratio is 0.09%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 14
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of the method for liquid poly aluminium chloride, comprises the steps:
With 52 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 60% and calcium oxide content be 39% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 17.61 tons;
2, after water injection, then in retort, add acidity to count 24.39 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 18% with Hcl;
4, in the mixed solution stirring, slowly add 10 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide mass percent in gained poly aluminium chloride is 11.54%, and basicity is 85.12%, and insolubles quality percentage ratio is 0.09%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Embodiment 15
The pure calcium aluminate powder of use of the present invention is directly prepared the another example of the method for liquid poly aluminium chloride, comprises the steps:
With 52 tons of productions, aluminium sesquioxide content is that 10% above poly aluminium chloride is produced as example, raw materials for production be aluminium sesquioxide content be 60% and calcium oxide content be 39% pure calcium aluminate powder and acidity are counted 31% technical hydrochloric acid with Hcl, directly prepare liquid poly aluminium chloride
1, in the acid tolerance response tank of 60 cubes, add the water of 27.09 tons;
2, after water injection, then in retort, add acidity to count 14.91 tons of 31% technical hydrochloric acids with Hcl;
3, water and hydrochloric acid mixed solution are stirred, now mixed solution is that the acidity of reaction solution counts 11% with Hcl content;
4, in the mixed solution stirring, slowly add 10 tons of pure calcium aluminate powders, within 20-30 minute, finish pure calcium aluminate powder, note not overflow;
5, in acid tolerance response tank, finish after pure calcium aluminate powder, continue to stir 2 hours, temperature is controlled at 100 degree;
6, after stirring and finishing, reaction liquid is left standstill or press filtration, get supernatant liquor after standing or the filtrate after press filtration, be finished product liquid poly aluminium chloride.
Through check analysis, the aluminium sesquioxide mass percent in gained poly aluminium chloride is 11.56%, and basicity is 78.57%, and insolubles quality percentage ratio is 0.10%.Heavy metal index is: the massfraction of arsenic is 0.0001%, and plumbous massfraction is 0.0007%, and the massfraction of cadmium is 0.00007%, and the massfraction of mercury is 0.00001%, and chromic massfraction is 0.0001%.
Comparative example 1 to embodiment 11, can find under the fixing condition of pure calcium aluminate powder input amount, the basicity of product can be controlled by the acidity adjustment of reaction solution, reaction solution acidity in Hcl content in 10～20% scopes, the variation relation of basicity and such as reaction acidity is inverse correlation relation, and basicity raises and reduces with reaction solution acidity.
The proportioning raw materials of table 1 embodiment 1 to 15 is that 10% above liquid poly aluminium chloride calculates by producing aluminium sesquioxide content:
Claims (4)
1. a method of preparing liquid poly aluminium chloride with pure calcium aluminate powder, is characterized in that, comprises the steps:
(1) in acid tolerance response container, part add water 14.91～28.44 according to quantity, technical hydrochloric acid 13.56～27.09 weight parts, stir, in the acidity content of reaction solution after Hcl sour water mixed solution 10～20%;
(2) continue in acid tolerance response container, slowly to add pure calcium aluminate powder 7～10 weight parts, within 20-30 minute, finish pure calcium aluminate powder, stir, keep temperature of reaction at 100～105 degree, 2 hours reaction times, obtain a kind of reaction solution,
(3) described reaction solution is left standstill or press filtration, extract the liquid after supernatant liquid or press filtration, obtain the liquid poly aluminium chloride of finished product.
2. the pure calcium aluminate powder of use according to claim 1 is directly prepared the method for liquid poly aluminium chloride, it is characterized in that, described technical hydrochloric acid is in acidity content >=31% of Hcl.
3. the pure calcium aluminate powder of use according to claim 1 is directly prepared the method for liquid poly aluminium chloride, it is characterized in that, in described pure calcium aluminate powder, aluminium sesquioxide quality percentage composition is 60～69%, and calcium oxide quality percentage composition is 30～39%.
4. the pure calcium aluminate powder of use according to claim 1 is directly prepared the method for liquid poly aluminium chloride, it is characterized in that, whole preparation process is to carry out under atmospheric pressure state.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517281A (en) * | 2016-09-30 | 2017-03-22 | 嘉善海峡净水灵化工有限公司 | Polyaluminum chloride preparation method |
| CN111606401A (en) * | 2020-05-18 | 2020-09-01 | 太仓市新星轻工助剂厂 | Preparation method of high-purity polyaluminum chloride from water treatment inorganic flocculant |
| CN111747435A (en) * | 2020-07-08 | 2020-10-09 | 宁夏蓝田农业开发有限公司 | Method for preparing flocculant by using oxadiargyl byproduct |
| CN114702054A (en) * | 2022-04-13 | 2022-07-05 | 衡阳市建衡实业有限公司 | Production process of high-purity polyaluminum chloride |
| CN115108572A (en) * | 2022-04-18 | 2022-09-27 | 重庆市宇洁化工有限公司 | Polyaluminium chloride production method suitable for purifying various water qualities |
| CN115724452A (en) * | 2021-08-25 | 2023-03-03 | 广东华锋碧江环保科技有限公司 | Production method of high-purity polyaluminum chloride |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200301A (en) * | 2007-11-23 | 2008-06-18 | 华泰集团有限公司 | Method for directly producing polymeric aluminium chloride additive by employing calcium hypochlorite powder |
| CN101284678A (en) * | 2008-05-04 | 2008-10-15 | 江门慧信环保股份有限公司 | Continuous production process for polyaluminium chloride and production equipment |
| CN103880051A (en) * | 2014-02-10 | 2014-06-25 | 广西绿实环保材料有限公司 | Method for preparing pure calcium aluminate powder for water treatment |
-
2014
- 2014-07-16 CN CN201410338561.2A patent/CN104150516A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200301A (en) * | 2007-11-23 | 2008-06-18 | 华泰集团有限公司 | Method for directly producing polymeric aluminium chloride additive by employing calcium hypochlorite powder |
| CN101284678A (en) * | 2008-05-04 | 2008-10-15 | 江门慧信环保股份有限公司 | Continuous production process for polyaluminium chloride and production equipment |
| CN103880051A (en) * | 2014-02-10 | 2014-06-25 | 广西绿实环保材料有限公司 | Method for preparing pure calcium aluminate powder for water treatment |
Non-Patent Citations (1)
| Title |
|---|
| 詹益兴: "《现代化工小商品制法大全 第1集》", 31 August 1999, 湖南大学出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517281A (en) * | 2016-09-30 | 2017-03-22 | 嘉善海峡净水灵化工有限公司 | Polyaluminum chloride preparation method |
| CN111606401A (en) * | 2020-05-18 | 2020-09-01 | 太仓市新星轻工助剂厂 | Preparation method of high-purity polyaluminum chloride from water treatment inorganic flocculant |
| CN111747435A (en) * | 2020-07-08 | 2020-10-09 | 宁夏蓝田农业开发有限公司 | Method for preparing flocculant by using oxadiargyl byproduct |
| CN111747435B (en) * | 2020-07-08 | 2022-10-25 | 宁夏蓝田农业开发有限公司 | Method for preparing flocculant by oxadiargyl byproduct |
| CN115724452A (en) * | 2021-08-25 | 2023-03-03 | 广东华锋碧江环保科技有限公司 | Production method of high-purity polyaluminum chloride |
| CN114702054A (en) * | 2022-04-13 | 2022-07-05 | 衡阳市建衡实业有限公司 | Production process of high-purity polyaluminum chloride |
| CN115108572A (en) * | 2022-04-18 | 2022-09-27 | 重庆市宇洁化工有限公司 | Polyaluminium chloride production method suitable for purifying various water qualities |
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