TW585925B - Method for producing humic acid from slag powder - Google Patents

Abstract

A method for producing humic acid from slag powder comprises adding organic matters containing humic acid into a specified amount of slag powder; and mixing the mixture to form a mixture with a pH value of 8 to 12.2 and using the property that the humic acid is only soluble in alkaline and insoluble in acid within this pH range to dissolve and separate the humic acid from the organic matters.

Description

Method for producing humic acid 'especially an organic substance with mixed ingredients' to dissolve the organic matter 585925 5. Description of the invention (1) [Technical field to which the invention belongs The present invention relates to a method for slag powder and humic acid-containing phytic acid . [Previous technology] Generally traditional or hydrogenated and dissolved phytic acid _ are all single-grade chemical procurement, due to the compound special improvement [invented the production into a characteristic, the ammonium chemistry that decomposes rot, etc. The conventional and acidic properties of humic acid are all necessary to make it rotten. If the nature of the rot is necessary, the invention is lower than the aforementioned method of adding phytic acid and humic acid to produce potassium phytate in humic substances. j Moreover, the main purpose of chemical phytic acid to reduce phytic acid is to include its products. The addition of phytic acid, humus is most commonly used and humic. The above-mentioned hydrogen material 'does not produce humic acid. The above-mentioned customary methods include sodium humate and the use of ammonium acid and potassium oxide by the industry. Rotting is to solve the above problems and provide a method for producing humic acid with different characteristics. The present invention mainly uses humic acid in slag organic matter to dissolve various nutrients contained in the organic matter, and produces organic matter such as ammonium humate which has a dmu different from potassium hydroxide acid. However, this N sodium hydroxide line chemically synthesizes a lot of South. Cost, as well as phytic acid producers, sodium hydroxide, so that it turns into a substance, and on charcoal. Phytic acid, such as humic humic acid or ammonium hydroxide, is produced outwardly with the addition of 585925. 5. Description of the invention (2). Of course, the present invention allows in certain processes or arrangements of processes It is different, but the selected implementation is explained in detail in this specification. [Performance application method] According to the humic acid, it is a kind of natural amorphous polymer substance that is only soluble in alkaline solvents but not acidic solvents. The main source is extracted from natural peat soil. At present, humic acid has been widely used in agricultural, public, medical, animal husbandry and other technical fields, and according to statistics, about 70 kinds of related products have been circulated on the market, such as soil improvers, fertilizers and pesticide additives, and Corrosives, dye additives, surfactants, feed additives, ceramic additives, cement additives, etc., have all achieved good economic benefits and promoted the improvement of the relevant technologies and profits of the industry. The present invention mainly uses mixed slag, powder, and humic acid-containing organic matter to dissolve the organic matter into humic acid. Therefore, the slag also plays an important role in the present invention. According to the slag, it is a waste product in the technical field of the iron and steel industry. It is usually produced in the process of refining pig iron. When iron ore raw materials are mixed with limestone and coal and then heated to 130 ° C to melt it, iron Water will be separated from iron ore and slag will be generated. The proportion of slag composition will be slightly different due to different treatment methods in the steelmaking process. Therefore, there are desulfurization slag, blast furnace slag, converter slag and dephosphorization slag, etc. It is nothing more than a mixture of silicon, aluminum and calcium, magnesium and a few elements in limestone. They all contain soluble silicon oxide (Si 02) more than 10%, calcium oxide (CaO) more than 30%, and The pH is usually around 12. Millions of tons of slag produced by the steel industry are estimated every year, although

Page 5 585925 V. The invention is described in the industry. The modifier is: "The amount of silica ash fertilizer is similar. It is a risk." The year is worthy of quality. It is a slag process without slag and electrical differences. (3) Waste And the related limitations of the acid slag can be confirmed. Therefore, the resource to be promoted is iron and steel, because the arc slag is a table, but the amount of titanium in the cement industry; this agricultural slag should be diversified to steelmaking. The stainless steel part 0, but the cement, cement, and slag content of the layer used to promote the joints of the slag produced in the production of desulfurization furnace steel slag and other agricultural additives, chromium and other content has actually been used for many years also slag application side, If you can use the waste side slag in the direction that can be used, the silicon fertilizer and soil used in different slags of the blast furnace are far lower than the natural content of the by-product stone and soil according to the report of Taiwan Agriculture, so that there is no contaminated soil. The special product of slag, however, is due to steelmaking slag, converter slag, unfilling, and its composition is slightly different.

Slag type Cao MgO Si02 A1203 S FeO MnO P205 pH desulfurization slag 47 2 21 4 1 10--12. 3 and slag 40 7 35 14 1 0. 5 0. 6-12.0 dephosphorization slag 46 2 22 3 0.2 9 0,14 11.9 Converter slag 47 5 15 1 0.1 10 5-12.5 ^ 1 Electric arc slag 38 7 19 7 0. 4 15 6-11.6 Stainless steel slag 40 6 26 5 0.1 3 2-11.7 Press, the use of slag resource is very useful It is widely used as a micro-soil improver in the world ’s armed forces and contains # 5 (Ca), magnesium (Mg), silicon (Si), sulfur (S), iron

Page 6 585925 V. Description of the invention (4) (F =) Manganese (Mn) or phosphorus (P) and other plant nutrients, and the fertilizer number 4-2 1 listed in the Chinese fertilizers. The main source of the above-mentioned organic matter containing humic acid in the present invention is Tian = zhi, charcoal soil, peat, peat moss, and other materials such as sludge or compost. ^ The content of ingredients is as shown in Table 2. Acid ratio and its acid-base surface peat soil peat moss peat sludge straight. Contains humic acid value-humus 24 ~ 45 2 ~ 15 20 ~ 31 3 ~ 18 2 ~ 10

Acid test pH 4 · 5. 5 · 5 · 6 ·

The slag powder produced by the slag powder above the slag is so acidic because of the powder of the present invention. Because it is related to humic acid containing humic acid, the energy is not related to the energetic dissolving system. If a certain proportion of humic acid can be dissolved, the humic acid will dissolve out humic acid and produce a larger amount of humic acid. The production of humic acid by organic humus is low and unacceptable for mixing. However, the pΗ value of acid is limited, and the quality of acid after mixing is relatively poor. The organic substance makes it many different things in acid. The more the acid value of the characteristic is between 7 and 8, the higher the pH value without economic value can be. The production is mainly based on the pH value of 8 and the characteristics, so the slag can be dissolved at a high value. Turn the furnace to above 8

ilia page 7 585925 V. Description of the invention (5) Economic benefits. The following two tables are used to explain the relationship between the mixing ratio of slag powder and humic acid-containing organic matter and the pH value. Table 3: What is the mixing ratio of desulfurization slag (PH 12.3) and peat soil (ρΗ4.9) and acid test Change of value ^ [Dagger weight ratio (weight / weight) pH-sulphur desulfurization slag peat soil (pH *) _ 6. 1 100 8. 0 9. 2 100 9. 1 12. 9 100 10.3 19. 4 100 11.8 24. 2 100 12 · 2 ρΗ * = — log [H +] In Table 3, the pH value after mixing the desulfurized slag and peat soil is 1 2 · 3 as an example. The humic acid produced is 2 1%, and The humic acid produced contains 5.1% calcium oxide, 1.2% magnesium oxide, 1.3% iron, 0.5% sulfur, zinc 20 叩 / 1 ^, and manganese 8 6 0 mg / kg ° Table 4: Blast Furnace Slag (ρΗ12 · 4 ) And peat soil (ρΗ4 · 9) mixing ratio and change in pH value weight ratio (weight / weight) pH base south furnace) Chalu peat soil ___ (ρ Η 氺) ____

585925 V. Description of the invention (6) 6.5: 100 8. 0 10.6: 100 9. 2 13.8: 100 10. 4 21.3: 100 1 K 5 25. 7: 100 12.1 pH * = — log [H +] After mixing the slag and peat soil, the pH value is 1 2 · 1 as an example. The humic acid produced is 20.6%, and the humic acid produced contains 4.9% calcium oxide and magnesium oxide 1. 4%, silicic acid 1.6%, iron 1.5%, zinc 25 mg / kg, and manganese 91 mg / kg. The disclosure of the examples described above is used to illustrate the present invention, but not to limit the present invention. Therefore, any change in value or replacement of equivalent components should still belong to the scope of the present invention. From the above detailed description, those skilled in the art can understand that the present invention can indeed achieve the aforementioned purpose, and has indeed complied with the provisions of the Patent Law, and filed a patent application.

585925 Schematic illustration

Claims (1)

585925 VI. The scope of the patent application for quantitative quantification of the only rot in the dissolved 2 · Acid-based slag, and 3 • Acid-based slag, 4 · Acid-based slag, slag powder acid alkali No phytic acid. To apply for a special method, its dephosphorization furnace applies for a special method, its peat, applies for a special method, its peat, and a method for producing humic acid by using slag powder. It is mainly to add organic matter containing humic acid and make the two It is mixed between 8 and 1 2 · 2. In the use of the characteristics of humic acid to acid, the organic matter containing humic acid is dissolved out. The slag system is a desulfurization slag, Either blast furnace slag or converter slag. The organic matter containing humic acid in the production of humus using slag powder as described in item 1 of the scope of benefit is any of peat soil, mud sludge and compost. The organic matter containing humic acid in the production of humus using slag powder as described in item 2 of the scope of benefit is any of peat soil, mud sludge and compost. Page 11