CN1244518C - Method for producing siliceous fertilizer - Google Patents

Method for producing siliceous fertilizer Download PDF

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Publication number
CN1244518C
CN1244518C CNB2003101054477A CN200310105447A CN1244518C CN 1244518 C CN1244518 C CN 1244518C CN B2003101054477 A CNB2003101054477 A CN B2003101054477A CN 200310105447 A CN200310105447 A CN 200310105447A CN 1244518 C CN1244518 C CN 1244518C
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China
Prior art keywords
catalyst
siliceous fertilizer
flyash
weight ratio
coal gangue
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CNB2003101054477A
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CN1539796A (en
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刘振学
武艳菊
汪兴隆
张震
孙汉友
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刘振学
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

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  • Fertilizers (AREA)

Abstract

The present invention relates to a method for producing siliceous fertilizer, particularly to a method for producing siliceous fertilizer by using coal gangue or fly ash and black liquor. The method for producing siliceous fertilizer omprises the following steps: a) black liquor and flyash or coal slack are uniformly mixed and dried according to a weight ratio of 1 to 40: 1, the materials are put in a heating furnace to be catalyzed and activated, the activation temperature is 600 to 800 DEG C, the activation time is about 10 to 50 minutes, and an activator is obtained; b) the activator is taken out from the furnace and is formed into a product after being aired and pulverized. The siliceous fertilizer produced by the method o has the advantages of high effective silicone content, simple process and convenient operation; furthermore, wastes are recycled and changed into the valuable.

Description

A kind of production method of siliceous fertilizer
(1) technical field under
The present invention relates to a kind of production method of siliceous fertilizer, particularly a kind of production method with coal gangue or flyash and black liquid production siliceous fertilizer.
(2) background technology
At present, with fertile, its consumption is increasing as farm crop for siliceous fertilizer.The production method of general siliceous fertilizer, its cost is higher, complex manufacturing.On the other hand, for black liquid, because cost recovery is too high, the often discharging in violation of rules and regulations of paper mill that some scale is less has caused havoc to local ecology.If carry out harmless treatment, it is affordable that the height of its equipment and working cost is not institute of medium and small sized enterprises yet.Therefore, black liquid is one and presses for as early as possible the problem that solves.The method of using black liquid to produce siliceous fertilizer is also arranged at present, as the patent No. is 90105832 Chinese patents: " method for making silicon fertilizer ", the waste lye that is the spent pickle liquor, Water Quenching Slag, zinc-plated waste residue and the paper mill that utilize Steel Plant is main raw material, produce superfine iron oxide and higher trace element compound fertilizer, wherein the waste liquid in paper mill is a stablizer.Be 01140782 Chinese patent as the patent No.: " siliceous fertilizer and manufacture method thereof " is to utilize the slag that produces in pre-treatment liquid pig iron process and have higher soluble silica content to produce siliceous fertilizer.But there is complex manufacturing in aforesaid method, processing temperature is higher, cost is higher, the shortcoming of adaptability to raw material difference.
(3) summary of the invention
The present invention provide a kind of production method of utilizing black liquid and coal gangue or flyash to produce siliceous fertilizer, and it is low to have thermal treatment temp in order to overcome above deficiency, and the silicone content height is simple to operate, the advantage that cost is low.
The present invention realizes by following measure:
The production method of siliceous fertilizer of the present invention may further comprise the steps:
A. by black liquid: flyash or coal gangue equal 1～40: 1 weight ratio, and above-mentioned mixing of materials is evenly also dry; Dried material, the weight ratio that adds 100-500g by 1 ton of flyash or coal gangue adds catalyst A, puts into the process furnace catalytic activation, and activation temperature is 600～800 ℃, and soak time 10～50 minutes gets activator; Described catalyst A is by SeO 2: MnO 2: CuO is 5～20: 0～20: 0～20 weight ratio mixes;
B. after above-mentioned activator being come out of the stove,, evenly spray catalyst B while hot, promptly get product after the dried and crushed in the ratio of 1 ton of flyash or coal gangue sprinkling 10～20L catalyst B; Described catalyst B is by B (OH) 3: ZnSO 4Equal 4～10g: the mixed of 10～50g adds the dense H of 100～500mL again 3PO 4Or the dense H of 50～200mL 2SO 4, add water to 10L and be made into.
The production method of siliceous fertilizer of the present invention, described black liquid: the optimum weight proportioning of flyash or coal gangue equals 5～15: 1.
The production method of siliceous fertilizer of the present invention, described catalyst A is preferably pressed SeO 2: MnO 2: CuO is 10～15: 5～10: 5～20 weight ratio mixes.
Method for making silicon fertilizer of the present invention fully contacts with reaction mass in order to make catalyzer, and described catalyst A is crushed to diameter＜0.1mm.
Raw material required for the present invention mainly is flyash or coal gangue and black liquid, earlier flyash or coal gangue, black liquid and catalyst A are mixed after drying by a certain percentage, again this mixture is heated up and heat, and come out of the stove after 10～50 minutes 600～800 ℃ of calcinations; While sprays catalyst B and makes it to mix at the fire door place; Suitably airing is after simple crushing promptly gets product of the present invention.
Principle of the present invention is, adds outside under the condition of heat, make full use of that black liquid accumulates than macro-energy, in the presence of catalyst A, fully activate, make black liquid and flyash or coal gangue 600-800 ℃ of fully reaction down.Rising along with temperature, be present in a large number in the black liquid oxygen-containing functional group progressively with coal gangue or flyash in complexing of metal ion, thereby the siliceous negatively charged ion in coal gangue or the flyash is discharged, fully react with basic cpd in the black liquid.Then, with catalyst B generation shrend reaction, metal ion is changed into vitriol or phosphoric acid salt again, guaranteed the solubility of silicon, thereby made product of the present invention.
The silicon fertilizer that the present invention produces generally can 100% be dissolved in rare acid solution, as can be molten entirely in the hydrochloric acid of pH＜4.Therefore, the silicon in the silicon fertilizer of the present invention's production can be utilized by 100%.
The silicon fertilizer that the present invention produces, the content of its effective silicon is 20-40%, is neutral substantially.Simultaneously, owing to added trace elements such as selenium, manganese, copper, boron, zinc, product of the present invention also can suitably replenish plants the deficiency of trace element in soil here, and can suitably adjust according to the soil particular case.In addition, as required, but product of the present invention also furnishing slight alkalinity or subacidity.
Production technique of the present invention, it is bigger that it consumes black liquid amount, and 1 ton of flyash or coal gangue can consume 1～40 ton of the black liquid of 24 ° of Be, obtain 1～3 ton of silicon fertilizer.Like this, siliceous fertilizer factory both can mass consumption flyash or coal gangue, again can the mass consumption black liquid, prevented the pollution of flyash, coal gangue or black liquid to environment.
Production method of the present invention, production method is simple, and raw materials cost is low.Produce 1 ton of silicon fertilizer, except flyash or coal gangue transportation cost, add catalyzer cost be no more than 20 yuan altogether.Because the energy that black liquid is accumulated, external energy is less, has saved the energy greatly.The ventilation thermal treatment temp can realize automatic production at 600-800 ℃.
In sum, the siliceous fertilizer available silicon content height that method of the present invention is produced, technology is simple, and is easy to operate, realized refuse reclamation, and turn waste into wealth.
(4) embodiment
1. embodiment 1
1. press SeO 2: MnO 2: CuO is that 5: 10: 20 weight ratio mixes above raw material, makes catalyst A;
2. get 5gB (OH) 3, 10g ZnSO 4Mix, add the H of 300ml again 3PO 4Dissolving adds water to 10L and is made into catalyst B fully.
3. get 50 tons of black liquids, 10 tons of fly ash in electric power plant, catalyst A is 1 kilogram, with above-mentioned material mixing drying, puts into the process furnace ventilation and is heated to 800 ℃, constant temperature activation 20 minutes gets activator;
4. above-mentioned activator is come out of the stove, in the ratio of 1 ton of flyash sprinkling 10L catalyst B, activator is evenly sprayed catalyst B while hot, promptly get 22 tons of products after the dried and crushed, available silicon content is 32.8%.
2. embodiment 2
1. press SeO 2: MnO 2The weight ratio that is 20: 5 mixes above raw material, makes catalyst A;
2. get 10gB (OH) 3, 40g ZnSO 4Mix, add the H of 150ml again 2SO 4Dissolving adds water to 10L and is made into catalyst B fully.
3. get 200 tons of black liquids, 20 tons of coal gangues, catalyst A is 5 kilograms, with above-mentioned material mixing drying, puts into the process furnace ventilation and is heated to 600 ℃, constant temperature activation 50 minutes gets activator;
4. above-mentioned activator is come out of the stove, in the ratio of 1 ton of coal gangue sprinkling 15L catalyst B, activator is evenly sprayed catalyst B while hot, promptly get 37 tons of products after the dried and crushed, available silicon content is 29.6%.
3. embodiment 3
1. press SeO 2: MnO 2: CuO is that 20: 10: 10 weight ratio mixes above raw material, makes catalyst A;
2. get 100 tons of black liquids, 5 tons of plant slags, catalyst A is 2 kilograms, with above-mentioned material mixing drying, puts into the process furnace ventilation and is heated to 750 ℃, constant temperature activation 30 minutes gets activator;
3. broken behind the naturally cooling after activator is come out of the stove, get 10.8 tons of products, available silicon content is 38.7%.
4. embodiment 4
1. get 150 tons of black liquids, 10 tons of fly ash in electric power plant.With above-mentioned material mixing drying, to put into the process furnace ventilation and be heated to 600 ℃, constant temperature activation 40 minutes gets activator;
2. broken behind the naturally cooling after activator is come out of the stove, get 24 tons of products, available silicon content is 28.7%.
5. embodiment 5
1. get 15gB (OH) 3, add the H of 350ml again 3PO 4Dissolving adds water to 10L and is made into catalyst B fully.
2. get 70 tons of black liquids, 2 tons of fly ash in electric power plant with above-mentioned thing mixing drying, are put into the process furnace ventilation and are heated to 800 ℃, and constant temperature activation 30 minutes gets activator;
3. above-mentioned activator is come out of the stove, in the ratio of 1 ton of flyash sprinkling 20L catalyst B, activator is evenly sprayed catalyst B while hot, promptly get 4.5 tons of products after the dried and crushed, available silicon content is 22.8%.

Claims (3)

1. the production method of a siliceous fertilizer is characterized in that: may further comprise the steps:
A. by black liquid: flyash or coal gangue equal 1～40: 1 weight ratio, and above-mentioned mixing of materials is evenly also dry; Dried material, the weight ratio that adds 100-500g by 1 ton of flyash or coal gangue adds catalyst A, puts into the process furnace catalytic activation, and activation temperature is 600～800 ℃, and soak time 10～50 minutes gets activator; Described catalyst A is by SeO 2: MnO 2: CuO is 5～20: 0～20: 0～20 weight ratio mixes;
B. after above-mentioned activator being come out of the stove,, evenly spray catalyst B while hot, promptly get product after the dried and crushed in the ratio of 1 ton of flyash or coal gangue sprinkling 10～20L catalyst B; Described catalyst B is by B (OH) 3: ZnSO 4Equal 4～10g: the mixed of 10～50g adds the dense H of 100～500mL again 3PO 4Or the dense H of 50～200mL 2SO 4, add water to 10L and be made into.
2. the production method of siliceous fertilizer according to claim 1, it is characterized in that: described black liquid: the weight ratio of flyash or coal gangue equals 5～15: 1.
3. the production method of siliceous fertilizer according to claim 1, it is characterized in that: described catalyst A is by SeO 2: MnO 2: CuO is 10～15: 5～10: 5～20 weight ratio mixes.
CNB2003101054477A 2003-10-27 2003-10-27 Method for producing siliceous fertilizer Expired - Fee Related CN1244518C (en)

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Application Number Priority Date Filing Date Title
CNB2003101054477A CN1244518C (en) 2003-10-27 2003-10-27 Method for producing siliceous fertilizer

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Application Number Priority Date Filing Date Title
CNB2003101054477A CN1244518C (en) 2003-10-27 2003-10-27 Method for producing siliceous fertilizer

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CN1244518C true CN1244518C (en) 2006-03-08

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100348552C (en) * 2005-04-30 2007-11-14 中国石油天然气股份有限公司 Compound fertilizer containing effective silicon
CN101177356B (en) * 2007-11-01 2010-06-16 大连工业大学 Method for manufacturing composite particle fertilizer by employing straw slurry paper-making waste
CN101671202B (en) * 2009-06-17 2012-07-25 阜新沃田肥业有限责任公司 Silicon fertilizer and production method thereof
CN102146001A (en) * 2010-02-10 2011-08-10 张发成 Silicon-containing compound (mixed) fertilizer
CN102757274B (en) * 2012-06-30 2014-09-24 华南农业大学 Preparation method for physicochemical comprehensive release promotion of silicon fertilizer rich in silicon minerals
CN104341173A (en) * 2013-08-08 2015-02-11 苑大海 Production method for silicon fertilizer
CN103694021A (en) * 2013-12-17 2014-04-02 焦伸 Gangue-based siliceous fertilizer
CN104030828A (en) * 2014-06-23 2014-09-10 合肥路飞农业科技有限公司 Calcium-dissolved foliar fertilizer
CN107746293A (en) * 2017-09-22 2018-03-02 四川巨星新型材料有限公司 High activity silicon fertilizer prepared using dump slag and preparation method thereof
CN113277886B (en) * 2021-05-27 2022-06-21 厦门大学嘉庚学院 Silicon fertilizer for tea trees and composite silicon fertilizer for tea trees using silicon fertilizer

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