CN103818915A - Method for preparing high-transparency liquid soluble silicate - Google Patents
Method for preparing high-transparency liquid soluble silicate Download PDFInfo
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- CN103818915A CN103818915A CN201410084822.2A CN201410084822A CN103818915A CN 103818915 A CN103818915 A CN 103818915A CN 201410084822 A CN201410084822 A CN 201410084822A CN 103818915 A CN103818915 A CN 103818915A
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Abstract
The invention discloses a method for preparing high-transparency liquid soluble silicate. According to the method, a ratio of diatomaceous earth to liquid soluble silicate is preferably selected, a blade type filter is adopted, a filter aiding layer is formed in each blade, and suspended impurities in the liquid soluble silicate are absorbed by means of a porous characteristic of diatomaceous earth, so that the transparency of a preparation liquid meets a quality requirement of the high-transparency liquid soluble silicate. The method has the characteristic that the transparency of the liquid soluble silicate can be remarkably improved in absence of new impurities.
Description
Technical field
The present invention relates to a kind of preparation method of inorganic chemical product, be specifically related to a kind of preparation method of high transparent liquid water glass.
Background technology
Water glass is a kind of broad-spectrum basic chemical industry raw material, after being mixed by a certain percentage, makes through high-temperature fusion by quartz sand with soda ash.Because of reasons such as temperature variation in impurities in quartz sand and melting process, after sodium silicate dissolving, conventionally contain some fine impurity, make liquid soluble glass outward appearance muddiness.Although remove partial impurities by the mode that adopts natural subsidence to add Plate Filtration at present, often lower than 150mm, there is the defect that filtration velocity is slow, filter effect is bad in transparency, has a strong impact on its use properties; And adopt the method for adding the flocculation agents such as polyacrylamide can bring other material into, affect its derived product performance.
Summary of the invention
The object of the invention is to provide a kind of preparation method that can obviously improve liquid soluble glass transparency and not bring the high transparent liquid water glass of new impurity.
For realizing above object, the preparation method of a kind of high transparent liquid water glass of the present invention is the proportioning of preferred diatomite and liquid soluble glass, adopt vane type filtration machine, by form drainage layer on blade, utilize diatomite porous character, suspended impurity in adsorptive liquid water glass, makes to prepare liquid transparency and reaches high transparent liquid water glass specification of quality; Concrete operation step is as follows:
1, the dissolving of solid water glass
Solid water glass and water are passed into steam dissolving under 0.4～0.6MPa pressure, and pressurize was put into storage tank by liquid soluble glass after 3～5 hours.
2, liquid soluble glass dilution preparation
Liquid soluble glass is pumped in Preparation tank, under agitation condition, add water, be mixed with concentration and be 20%～30% liquid soluble glass, for subsequent use.
3, mother liquor preparation
The liquid soluble glass preparing is pumped in mother liquor tank, under stirring state by liquid soluble glass: diatomite=1:(0.015 ~ 0.02) weight ratio adds diatomite, stirs full and uniform.
4, drainage layer preparation
Material in mother liquor tank is pumped in leaf filter, and till being circulated to outlet liquid-transparent, make to form the uniform drainage layer of one deck in filter vane.
5, filter
Leftover materials in Preparation tank are pumped in leaf filter, and circulating filtration, detects after transparency reaches high transparent liquid water glass specification of quality and closes circulation to sampling, obtains high transparent liquid water glass and directly enters thesaurus groove.
6, sampling detects
Detect from the sampling of thesaurus groove, outward appearance clear, transparency reaches high transparent liquid water glass specification of quality after testing.
Advantage of the present invention:
Compared with traditional technology, utilize diatomite porous character, in filter vane, form even drainage layer by preparing the method for Recycling Mother Solution coated, subparticle in absorption catch liquid water glass effectively, thereby improve the transparency of water glass after filtering, do not bring other material into, guarantee the quality of liquid soluble glass simultaneously.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
embodiment mono-
The preparation method of a kind of high transparent liquid water glass of the present invention is by the proportioning of preferred diatomite and liquid soluble glass, adopt vane type filtration machine, by form drainage layer on blade, utilize diatomite porous character, suspended impurity in adsorptive liquid water glass, prepares the liquid soluble glass that liquid transparency is greater than 200mm; Concrete operation step is as follows:
1, solid water glass dissolves
4.0 tons of solid water glass and 10 tons of tap water are added in 14m3 rotary spherical digester at every turn, under 0.4～0.6MPa pressure, dissolve, and pressurize is put into storage tank after 3 hours, like this operation repeatedly.
2, liquid soluble glass dilution preparation
Liquid soluble glass pump 60m3 after dissolving is pumped in 100m3 Preparation tank, under agitation condition, add water, be mixed with concentration and be 26% liquid soluble glass, for subsequent use.
3, mother liquor preparation
The liquid soluble glass preparing about 3m3 is pumped in the mother liquor tank of 5m3, add 60kg diatomite under stirring state, stir about 10min makes material full and uniform.
4, drainage layer preparation
Material in mother liquor tank is pumped in leaf filter, and circulating filtration is to till exporting liquid-transparent, makes to form the uniform drainage layer of one deck in filter vane, approximately needs 20min left and right.
5, filter
Leftover materials in Preparation tank are pumped in leaf filter, and after the 10min that approximately circulates, sampling detection transparency is greater than after 200mm, closing the high transparent liquid water glass of circulation acquisition and directly entering thesaurus groove.
6, sampling detects
Detect from the sampling of thesaurus groove, outward appearance clear, with the detection of scale perspective pipe, transparency > 200mm.
embodiment bis-
Change the dwell time of step 1 in embodiment mono-into diatomite add-on that 4 hours, the liquid soluble glass add-on of step 2 change 70m3, step 3 into and change 80kg into, other conditions and operation are with embodiment mono-.
The high transparent liquid water glass product that above two embodiment are made and existing liquid soluble glass product detect analytical results and contrast as following table:
The liquid soluble glass product that the present invention and prior art make detects analytical results contrast table
| Project | Embodiment mono- | Embodiment bis- | Before filtration | Tradition Plate Filtration |
| Outward appearance | Clear | Clear | Oyster white | Shallow white |
| Transparency | ＞200mm | ＞200mm | 55mm | 110mm |
In table, can find out, the present invention can obtain the high transparent liquid soluble glass of clarification by the method for diatomite drainage, and compared with traditional Plate Filtration, transparency improves greatly.
Claims (1)
1. the preparation method of a high transparent liquid water glass, it is characterized in that: the preferably proportioning of diatomite and liquid soluble glass, adopt vane type filtration machine, by form drainage layer on blade, utilize diatomite porous character, suspended impurity in adsorptive liquid water glass, makes to prepare liquid transparency and reaches high transparent liquid water glass specification of quality; Concrete operation step is as follows:
The first step: the dissolving of solid water glass; Solid water glass and water are passed into steam dissolving under 0.4～0.6MPa pressure, and pressurize was put into storage tank by liquid soluble glass after 3～5 hours;
Second step: liquid soluble glass dilution preparation; Liquid soluble glass is pumped in Preparation tank, under agitation condition, add water, be mixed with concentration and be 20%～30% liquid soluble glass, for subsequent use;
The 3rd step: mother liquor preparation; The liquid soluble glass preparing is pumped in mother liquor tank, under stirring state by liquid soluble glass: diatomite=1:(0.015 ~ 0.02) weight ratio adds diatomite, stirs full and uniform;
The 4th step: drainage layer preparation; Material in mother liquor tank is pumped in leaf filter, and till being circulated to outlet liquid-transparent, make to form the uniform drainage layer of one deck in filter vane;
The 5th step: filter; Leftover materials in Preparation tank are pumped in leaf filter, and circulating filtration, detects after transparency reaches high transparent liquid water glass specification of quality and closes circulation to sampling, obtains high transparent liquid water glass and directly enters thesaurus groove;
The 6th step: sampling detects; Detect from the sampling of thesaurus groove, outward appearance clear, transparency reaches high transparent liquid water glass specification of quality after testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084822.2A CN103818915A (en) | 2014-03-10 | 2014-03-10 | Method for preparing high-transparency liquid soluble silicate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084822.2A CN103818915A (en) | 2014-03-10 | 2014-03-10 | Method for preparing high-transparency liquid soluble silicate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103818915A true CN103818915A (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410084822.2A Pending CN103818915A (en) | 2014-03-10 | 2014-03-10 | Method for preparing high-transparency liquid soluble silicate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310419A (en) * | 2014-10-22 | 2015-01-28 | 兴化市苏缘泡花碱有限公司 | Preparation process of liquid sodium silicate |
| CN105110346A (en) * | 2015-08-24 | 2015-12-02 | 昌邑市龙港无机硅有限公司 | Filtering refining technology for liquid-state sodium silicate |
| CN107162012A (en) * | 2017-05-25 | 2017-09-15 | 肖飞 | A kind of high mode flower bulb alkali preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084491A (en) * | 1992-09-25 | 1994-03-30 | 中国石油化工总公司兰州炼油化工总厂 | The pressure and filter aid filtration process for refining of water glass |
| CN1386702A (en) * | 2002-04-23 | 2002-12-25 | 宋志骥 | Process for refining water glass by precise minipore filter |
| CN101423223A (en) * | 2008-11-12 | 2009-05-06 | 山西天一纳米材料科技有限公司 | Impurity removal and purification method for waterglass |
| CN202016875U (en) * | 2011-03-10 | 2011-10-26 | 福建海能新材料有限公司 | Diatomite filtering-assisted sodium silicate device |
-
2014
- 2014-03-10 CN CN201410084822.2A patent/CN103818915A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084491A (en) * | 1992-09-25 | 1994-03-30 | 中国石油化工总公司兰州炼油化工总厂 | The pressure and filter aid filtration process for refining of water glass |
| CN1386702A (en) * | 2002-04-23 | 2002-12-25 | 宋志骥 | Process for refining water glass by precise minipore filter |
| CN101423223A (en) * | 2008-11-12 | 2009-05-06 | 山西天一纳米材料科技有限公司 | Impurity removal and purification method for waterglass |
| CN202016875U (en) * | 2011-03-10 | 2011-10-26 | 福建海能新材料有限公司 | Diatomite filtering-assisted sodium silicate device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310419A (en) * | 2014-10-22 | 2015-01-28 | 兴化市苏缘泡花碱有限公司 | Preparation process of liquid sodium silicate |
| CN105110346A (en) * | 2015-08-24 | 2015-12-02 | 昌邑市龙港无机硅有限公司 | Filtering refining technology for liquid-state sodium silicate |
| CN107162012A (en) * | 2017-05-25 | 2017-09-15 | 肖飞 | A kind of high mode flower bulb alkali preparation method |
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Application publication date: 20140528 |