CN1587303A - New method for extracting humate from weathered coal - Google Patents
New method for extracting humate from weathered coal Download PDFInfo
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- CN1587303A CN1587303A CN 200410058335 CN200410058335A CN1587303A CN 1587303 A CN1587303 A CN 1587303A CN 200410058335 CN200410058335 CN 200410058335 CN 200410058335 A CN200410058335 A CN 200410058335A CN 1587303 A CN1587303 A CN 1587303A
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- weathered coal
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Abstract
The present invention discloses one new method of extracting humate from weathered coal. The weathered coal material is crushed, mixed with water and alkali metal silicate in a reactor, heated at 40-80 deg.c and stirred for reaction of 0.5-1 hr, precipitated, and filtered to obtain the extracted liquid. The said process has high extraction rate, low cost and no pollution, and the extracted humate solution may be compounded into liquid fertilizer directly. The liquid fertilizer has the functions of common humate fertilizer and silicate fertilizer and is favorable to green agriculture.
Description
Technical field
The present invention relates to a kind of method of extracting humate, relate in particular to a kind of method of extracting humate with alkalimetal silicate.
Background technology
Humic acids is a kind of natural organic high molecular compound, be present in peat, the peat composed of rotten mosses, ocean, soil and the grizzle, contain groups such as elements such as carbon, hydrogen, oxygen, nitrogen and aromatic proton, phenolic hydroxyl group, carboxyl, methoxyl group, have performances such as slightly acidic, wetting ability, ion exchangeable, oxidation-reduction quality and physiologically active.Humic acids is extracted from weathered coal, makes agricultural fertilizer or, be used widely in China as plant-growth regulator with the form of humate, this class fertilizer to improve the soil, protect fertilizer, good effect has all been played in volume increase.
The production method of existing the most frequently used humate is: will low calcium and magnesium peat or weathered coal add the caustic soda soln of 1%-2% after pulverizing, heating is behind sedimentation and filtration, reheat is inspissated, through stack gas oven dry exhaust, get rotten sodium (potassium) solid after the pulverizing, perhaps directly after crushed, be put in the pond, add directly to macerate behind the alkali mixing and get with the peat composed of rotten mosses or weathered coal.This method working substance extracts insufficient, product ash content height, and humic acids is free settling in water, is unfavorable for the absorption of plant.The development and application of current humic acid fertilizer is particularly urgent for the development green agriculture, and, its leaching process is improved, reduces its cost as the humate of humic acid fertilizer major ingredient, improve its extraction yield, the element that has additional nutrients will help the development of humic acid fertilizer.For this reason, improve the extractive technique of humate, fully improving its extraction yield has very important meaning.
Technical scheme
Purpose of the present invention is the humic acids extracting method is improved, and provides a kind of and can not only improve not free settling of its extraction yield, humic acids, but also contain the humate new method for extracting of siliceous fertilizer effective ingredient.
In order to realize the object of the invention, this invention technical scheme is as follows:
With alkalimetal silicate under 40 ℃ of-80 ℃ of conditions, directly humic acids is extracted from weathered coal, alkalimetal silicate with the ratio of the weight of weathered coal is: 1: 0.1～1, concrete steps are as follows: 1. weathered coal is pulverized, add in the reactor, add entry, alkaline silicate, the heated and stirred reaction is 0.5-1 hour under 40 ℃ of-80 ℃ of conditions, change in the settling bath, filter extracting solution; 2. be that the direct can of humate becomes serial liquid fertilizer with extracting solution.During use foliage-spray is carried out in its dilution, its effective spray concentration is 400～1000ppm.Described alkaline silicate is alkaline sodium silicate, Starso, sodium metasilicate, five sodium sesquisilicates.
This method selects for use alkalimetal silicate to substitute caustic soda, has stronger alkalescence based on its aqueous solution of alkalimetal silicate, its pH value is generally between 12.5～13, and it has surge capability preferably, the silicic acid that can make generation is free settling not, contain siliceous fertilizer effective constituent again simultaneously thereby make this extracting solution not only contain humate, directly made fertilizer for spraying on leaf surface, cost is lower and raw material availability is higher.
Beneficial effect of the present invention is as follows:
1) chooses alkalimetal silicate and replace caustic soda sodium hydroxide, reduced the solution pH value, it is remained between the 7-8, can make all free settlings not of silicic acid in the solution, humic acids, help directly humate solution being mixed with liquid and spray fertilizer; The liquid fertilizer that this is mixed with, acidity is low, help improving soil quality, optimize Soil structure, and this fertilizer contains sio
3 2-Ion, make its advantage that has siliceous fertilizer concurrently again, through evidence, humate combines with siliceous fertilizer, the light and the cooperation that not only can improve crop used, the ability of the disease and insect resistance of enhancing crop also can strengthen the drought-resistant ability of crop, also activate the phosphorus in the soil, improves the utilization ratio of phosphate fertilizer.The at present domestic product that does not also have humate and siliceous fertilizer to make fertilizer for spraying on leaf surface occurs; 2) this method has improved the extraction yield of humic acids in the weathered coal, and extraction yield is 75%～85%.
Description of drawings
Fig. 1 is for to extract the infrared spectrogram that Sodium salts humic acids has been done with caustic soda from weathered coal;
Fig. 2 is for extracting the infrared spectrogram that Sodium salts humic acids has been done with bubble flower alkali from weathered coal;
Fig. 3 is for to extract the infrared spectrogram that Sodium salts humic acids has been done with Starso from weathered coal;
Specific embodiment
For the present invention is described in detail better, as follows for embodiment:
Embodiment 1
The weathered coal that 1. will originate from Wuchuan, Inner Mongol is pulverized, and gets 10kg and adds in the reactor, adds entry 300L, alkaline sodium silicate 9kg, and the heated and stirred reaction is 0.5-1 hour under 80 ℃ of conditions, changes in the settling bath, filters extracting solution; Extraction yield 85%.2. be that the direct can of humic acids sodium salt becomes liquid fertilizer with extracting solution, carry out the crop foliage-spray.
Embodiment 2
The weathered coal that 1. will originate from Wuchuan, Inner Mongol is pulverized, and gets 5kg and adds in the reactor, adds entry 250ml, SODIUM METASILICATE PENTAHYDRATE 2.5kg, and the heated and stirred reaction is 0.5-1 hour under 70 ℃ of conditions, changes in the settling bath, filters extracting solution; Extraction yield 80%.2. be that the direct can of humic acids sodium salt becomes serial liquid fertilizer with extracting solution, carry out the crop foliage-spray.
Embodiment 3
The weathered coal that 1. will originate from Wuchuan, Inner Mongol is pulverized, and gets 5kg and adds in the reactor, adds entry 250ml, metasilicate pentahydrate sodium 1kg, and the heated and stirred reaction is 0.5-1 hour under 50 ℃ of conditions, changes in the settling bath, filters extracting solution; Extraction yield 75%.2. be that the direct can of humic acids sodium salt becomes liquid fertilizer with extracting solution, carry out the spray of crop blade face.
Claims (2)
1, a kind of method of from weathered coal, extracting humate, it is characterized in that selecting for use alkalimetal silicate under 40 ℃ of-80 ℃ of conditions, directly humic acids is extracted from weathered coal, weathered coal with the ratio of the weight of alkalimetal silicate is: 1: 0.1～1, and concrete steps are as follows:
1. weathered coal is pulverized, added in the reactor, add entry, alkaline silicate, the heated and stirred reaction is 0.5-1 hour under 40 ℃ of-80 ℃ of conditions, changes in the settling bath, filters extracting solution;
2. be that the direct can of humic acids sodium salt becomes liquid fertilizer with extracting solution.
2, the extracting method of humate as claimed in claim 1 is characterized in that described alkaline silicate is alkaline sodium silicate, Starso, sodium metasilicate, five sodium sesquisilicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100583355A CN100383177C (en) | 2004-08-10 | 2004-08-10 | New method for extracting humate from weathered coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100583355A CN100383177C (en) | 2004-08-10 | 2004-08-10 | New method for extracting humate from weathered coal |
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| Publication Number | Publication Date |
|---|---|
| CN1587303A true CN1587303A (en) | 2005-03-02 |
| CN100383177C CN100383177C (en) | 2008-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100583355A Expired - Fee Related CN100383177C (en) | 2004-08-10 | 2004-08-10 | New method for extracting humate from weathered coal |
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| CN (1) | CN100383177C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962393A (en) * | 2010-09-17 | 2011-02-02 | 甘肃金昌化学工业集团有限公司 | Extraction process of briquette binder sodium humate and matching devices |
| CN108675461A (en) * | 2018-04-19 | 2018-10-19 | 金华市呗力水产养殖技术有限公司 | The preparation method of multifunctional culture water modifying agent |
| CN109111578A (en) * | 2018-08-13 | 2019-01-01 | 周海东 | Preparation method, application method and the application of humic acid water-soluble liquid |
| CN109553501A (en) * | 2019-01-21 | 2019-04-02 | 宁夏然尔特工业产业研究院（有限公司） | A method of activated silica@active humic acid compound fertilizer being prepared by colm and compound fertilizer that this method obtains |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2230685C3 (en) * | 1972-06-23 | 1975-04-30 | Torfwerke Neuhaus Gmbh, 2909 Sedelsberg | Process for the production of a fertilizer from substances containing humic acid |
| CN1065550C (en) * | 1997-06-26 | 2001-05-09 | 蔡泽宇 | Process for producing humates |
| CN1232831A (en) * | 1998-04-21 | 1999-10-27 | 李文军 | High-activity humic acid and its production process |
| CN1202046C (en) * | 2003-02-19 | 2005-05-18 | 胡依理 | Method for preparing siliceous fertilizer by using dregs of sodium sulphide and its application |
-
2004
- 2004-08-10 CN CNB2004100583355A patent/CN100383177C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962393A (en) * | 2010-09-17 | 2011-02-02 | 甘肃金昌化学工业集团有限公司 | Extraction process of briquette binder sodium humate and matching devices |
| CN101962393B (en) * | 2010-09-17 | 2013-12-11 | 甘肃金昌化学工业集团有限公司 | Extraction process of briquette binder sodium humate |
| CN108675461A (en) * | 2018-04-19 | 2018-10-19 | 金华市呗力水产养殖技术有限公司 | The preparation method of multifunctional culture water modifying agent |
| CN109111578A (en) * | 2018-08-13 | 2019-01-01 | 周海东 | Preparation method, application method and the application of humic acid water-soluble liquid |
| CN109553501A (en) * | 2019-01-21 | 2019-04-02 | 宁夏然尔特工业产业研究院（有限公司） | A method of activated silica@active humic acid compound fertilizer being prepared by colm and compound fertilizer that this method obtains |
| CN109553501B (en) * | 2019-01-21 | 2021-09-21 | 宁夏然尔特工业产业研究院（有限公司） | Method for preparing active silicon-active humic acid compound fertilizer from low-grade coal and compound fertilizer obtained by method |
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| Publication number | Publication date |
|---|---|
| CN100383177C (en) | 2008-04-23 |
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