CN101837984A - Method for preparing sodium methasilicate pentahydrate - Google Patents
Method for preparing sodium methasilicate pentahydrate Download PDFInfo
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- CN101837984A CN101837984A CN201010166388A CN201010166388A CN101837984A CN 101837984 A CN101837984 A CN 101837984A CN 201010166388 A CN201010166388 A CN 201010166388A CN 201010166388 A CN201010166388 A CN 201010166388A CN 101837984 A CN101837984 A CN 101837984A
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Abstract
The invention discloses a method for preparing sodium methasilicate pentahydrate. The method comprises the following steps of: washing waste glass, drying the washed waste glass and grinding the dried waste glass into glass powder of over 200 meshes; mixing 20 to 36 percent NaOH solution and the waste glass powder in a mass ratio of 3.5-6:1; heating the mixture to the temperature of between 90 and 100 DEG C; reacting the mixture for 50 to 150min with continuous stirring; cooling the reaction product to the temperature of between 50 and 60 DEG C; adding the sodium methasilicate pentahydrate and sodium lauryl sulfate which respectively account for 0.5 to 1 percent and 0.1 to 0.5 percent of the total mass of the reaction product with stirring; naturally cooling the mixture to room temperature; devitrifying the mixture for 12 to 58h; and baking the obtained product at the temperature of between 30 and 35 DEG C for 120 to 260min. The method has the advantages of reducing the using amount of the sodium hydroxide, reaction time, production power consumption and cost by fully using the main components, namely silicon dioxide and sodium oxide, in the waste glass.
Description
Technical field
The invention belongs to the ceramic preparation field.Relate to a kind of method of producing metasilicate pentahydrate sodium, particularly a kind of method of utilizing cullet to produce metasilicate pentahydrate sodium.
Background technology
Metasilicate pentahydrate sodium has purposes widely in fields such as papermaking, machinery, electronics, chemical industry, material of construction, food, oil field, mining, potteries, has particularly become the best substitute products of the phosphorous assistant of serious environment pollution at detergent industry.And the production of metasilicate pentahydrate sodium at present is main raw material with water glass and sodium hydroxide usually, makes through technologies such as evaporation concentration, crystallisation by cooling, centrifugation, dryings, and not only energy consumption is big, production cost is high, and consumed resource is also bigger.
Summary of the invention
The objective of the invention is to utilize cullet to produce metasilicate pentahydrate sodium, with the production energy consumption that reduces metasilicate pentahydrate sodium, economize on resources, reduce cost.
The present invention is achieved by the following technical solutions.
Cullet is cleaned up, dries, wears into the above glass powder of 200 orders, then according to the following steps:
(1) be 20%～36% NaOH solution with concentration with the cullet powder is to mix at 3.5～6: 1, is heated to 90 ℃～100 ℃, continue to stir reaction 50min～150min down by mass ratio;
When (2) the question response product is cooled to 50 ℃～60 ℃, the metasilicate pentahydrate sodium that adds reaction product total mass 0.5%～1% while stirring is as crystal seed, and the sodium lauryl sulphate that adds reaction product total mass 0.1%～0.5% simultaneously is as dispersion agent, naturally reduce to room temperature then, crystallization 12 hours～58 hours;
Under (3) 30 ℃～35 ℃ temperature, oven dry 120min～260min promptly obtains the metasilicate pentahydrate sodium product.
The present invention is that main raw material prepares metasilicate pentahydrate sodium with the cullet, can make full use of main component silicon-dioxide and sodium oxide in the cullet, makes full use of waste resource, reduces caustic soda consumption in the production; Cullet powder and NaOH reactive behavior height can reduce the reaction times, reduce production energy consumption.Has advantage energy-conservation, that lower consumption, reduce production costs.
Embodiment
The present invention will be described further by following examples.
Embodiment 1:
With waste plate glass and industrial caustic soda is main raw material.Cullet is cleaned up, dries, wear into 200 order glass powder; It is 25% NaOH solution that industrial caustic soda is made into concentration, is to mix at 4.0: 1 with the cullet powder by mass ratio, and is heated to 95 ℃ they are reacted, and the reacting by heating process continues to stir, and the reaction times is 70min; After finishing, reaction treats that thick reaction product is cooled to 50 ℃, the metasilicate pentahydrate sodium that adds reaction product total mass 0.5% while stirring is as crystal seed, and the sodium lauryl sulphate that adds reaction product total mass 0.1% simultaneously is as dispersion agent, naturally reduce to room temperature then, the slow crystallization of metasilicate pentahydrate sodium.The metasilicate pentahydrate sodium crystallization needs 35 hours.With the excessive moisture oven dry, bake out temperature is 35 ℃, about drying time 150min, promptly obtains the metasilicate pentahydrate sodium product.
Embodiment 2:
With cullet bottle and concentration is that 32% ionic membrane caustic soda is a main raw material.Cullet is cleaned up, dries, it is worn into powder (more than 200 orders); Is to mix at 3.6: 1 ionic membrane caustic soda and cullet powder by mass ratio, and is heated to 100 ℃ they are reacted, and the reacting by heating process continues to stir, and the reaction times is 80min; After finishing, reaction treats that thick reaction product is cooled to 60 ℃, the metasilicate pentahydrate sodium that adds reaction product total mass 0.6% while stirring is as crystal seed, and the sodium lauryl sulphate that adds reaction product total mass 0.1% simultaneously is as dispersion agent, naturally reduce to room temperature then, the slow crystallization of metasilicate pentahydrate sodium.The metasilicate pentahydrate sodium crystallization needs 40 hours.With the excessive moisture oven dry, bake out temperature is 35 ℃, about drying time 140min, promptly obtains the metasilicate pentahydrate sodium product.
Embodiment 3:
With waste plate glass and concentration is that 30% diaphragm caustic soda is a main raw material.Cullet is cleaned up, dries, it is worn into powder (more than 200 orders); Is to mix at 5.1: 1 diaphragm caustic soda and cullet powder by mass ratio, and is heated to 95 ℃ they are reacted, and should continue in the reacting by heating process to stir, and the reaction times is 80min; After finishing, reaction treats thick reaction product is cooled to 55 ℃, the metasilicate pentahydrate sodium that adds reaction product total mass 0.6% while stirring is as crystal seed, and the sodium lauryl sulphate that adds reaction product total mass 0.2% simultaneously is as dispersion agent, naturally reduce to room temperature then, the slow crystallization of metasilicate pentahydrate sodium.The metasilicate pentahydrate sodium crystallization needs 40 hours.With the excessive moisture oven dry, bake out temperature is 30 ℃, and drying time 160min promptly obtains the metasilicate pentahydrate sodium product.
Claims (1)
1. the preparation method of a metasilicate pentahydrate sodium cleans up, dries, wears into the above glass powder of 200 orders with cullet, it is characterized in that further comprising the steps of:
(1) be 20%～36% NaOH solution with concentration with the cullet powder is to mix at 3.5～6: 1, is heated to 90 ℃～100 ℃, continue to stir reaction 50min～150min down by mass ratio;
When (2) the question response product is cooled to 50 ℃～60 ℃, the metasilicate pentahydrate sodium that adds reaction product total mass 0.5%～1% while stirring, and add the sodium lauryl sulphate of reaction product total mass 0.1%～0.5% simultaneously, reduce to room temperature then naturally, crystallization 12 hours～58 hours;
Under (3) 30 ℃～35 ℃ temperature, baking 120min～260min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101663884A CN101837984B (en) | 2010-05-07 | 2010-05-07 | Method for preparing sodium methasilicate pentahydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101663884A CN101837984B (en) | 2010-05-07 | 2010-05-07 | Method for preparing sodium methasilicate pentahydrate |
Publications (2)
| Publication Number | Publication Date |
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| CN101837984A true CN101837984A (en) | 2010-09-22 |
| CN101837984B CN101837984B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101663884A Expired - Fee Related CN101837984B (en) | 2010-05-07 | 2010-05-07 | Method for preparing sodium methasilicate pentahydrate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826562A (en) * | 2012-09-14 | 2012-12-19 | 天津理工大学 | Method for preparing water glass by utilizing waste lead-containing glass and separating lead-containing compound |
| CN102951652A (en) * | 2012-12-05 | 2013-03-06 | 朔州市润泽投资发展有限公司 | Method for producing sodium metasilicate by low-concentration sodium silicate solution |
| CN103738973A (en) * | 2013-12-17 | 2014-04-23 | 柳州东风化工股份有限公司 | Preparation method of sodium metasilicate pentahydrate |
| CN105271275A (en) * | 2015-09-27 | 2016-01-27 | 常州市奥普泰科光电有限公司 | Method for preparing uniform particle sodium metasilicate pentahydrate through solution crystallization technology |
| CN105540601A (en) * | 2016-01-26 | 2016-05-04 | 三祥新材股份有限公司 | Method for producing sodium metasilicate pentahydrate |
| CN113195425A (en) * | 2018-11-16 | 2021-07-30 | 昆士兰大学 | Alkaline digestion of glass |
| CN113277519A (en) * | 2021-06-22 | 2021-08-20 | 清华大学 | Silicon dioxide mesoporous material using waste glass as raw material and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772608A (en) * | 2005-10-01 | 2006-05-17 | 薛彦辉 | Process of producing sodium metasilicate pentahydrate with waste industrial silicone gel |
-
2010
- 2010-05-07 CN CN2010101663884A patent/CN101837984B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772608A (en) * | 2005-10-01 | 2006-05-17 | 薛彦辉 | Process of producing sodium metasilicate pentahydrate with waste industrial silicone gel |
Non-Patent Citations (2)
| Title |
|---|
| 20020228 郑贤福 溶液结晶法生产五水偏硅酸钠 40-42 1 第32卷, 第1期 2 * |
| 20091231 郑典模等 稻壳制备含结晶水偏硅酸钠新工艺研究 49-52 1 第41卷, 第12期 2 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826562A (en) * | 2012-09-14 | 2012-12-19 | 天津理工大学 | Method for preparing water glass by utilizing waste lead-containing glass and separating lead-containing compound |
| CN102951652A (en) * | 2012-12-05 | 2013-03-06 | 朔州市润泽投资发展有限公司 | Method for producing sodium metasilicate by low-concentration sodium silicate solution |
| CN103738973A (en) * | 2013-12-17 | 2014-04-23 | 柳州东风化工股份有限公司 | Preparation method of sodium metasilicate pentahydrate |
| CN105271275A (en) * | 2015-09-27 | 2016-01-27 | 常州市奥普泰科光电有限公司 | Method for preparing uniform particle sodium metasilicate pentahydrate through solution crystallization technology |
| CN105540601A (en) * | 2016-01-26 | 2016-05-04 | 三祥新材股份有限公司 | Method for producing sodium metasilicate pentahydrate |
| CN105540601B (en) * | 2016-01-26 | 2018-02-06 | 三祥新材股份有限公司 | A kind of production method of metasilicate pentahydrate sodium |
| CN113195425A (en) * | 2018-11-16 | 2021-07-30 | 昆士兰大学 | Alkaline digestion of glass |
| CN113277519A (en) * | 2021-06-22 | 2021-08-20 | 清华大学 | Silicon dioxide mesoporous material using waste glass as raw material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101837984B (en) | 2012-01-11 |
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