CS259707B1 - Method of soluble titanium's stable liquid concentrate production which may be generally used during plants' supplementary nutrition - Google Patents

Abstract

Solution, titylsulphonyl sulfate. operating. adospoh stechiametr.ickým. tartaric acid or a salt thereof, and the mixture is neutralized ammonia water.w at pH: 6: to: & Prepared the titanium concentrate is stable in wide pH range 2 to 12: Maybe: her; arbitrarily dilute with water and · mix with acidic or aadic1 · thread solutions and with: all kinds- commonly: produced liquid: hno.jiv and pesticides. raapuatných in the water.

Description

The invention relates to a process for the production of a stable concentrated solution of titanium in plant-assimilable form, which is universally applicable in supplementary plant nutrition.

In recent years, there is increasing evidence that titanium is an important biogenic element in plants. Titanium has been found to be incorporated by plants and accumulated in chloroplasts where it participates in biochemical processes. In addition, titanium has been shown to accelerate life processes in plants, favorably affecting the assimilation of nutrients and the accumulation of starch and sugars.

In our soils is relatively high titanium content. The titanium concentration in the soil is reported to be on average between 4,500 and 4,850 mg per kg of soil. However, at a pH of 4 to 8 which satisfies virtually all plants, titanium is present in insoluble form and is therefore inaccessible to plants. The soluble form of titanium can be obtained by converting it to a chelate. Plants can receive nutrients from chelates either from the soil through the root system or through the leaf.

Some nutrients are naturally bound in chelates in plants. Amino acids, peptides, polysaccharides and polynucleotides, thiols, phenols and carboxylic acids, in particular hydroxy acids, may serve as natural chelating agents. Obviously, the use of a naturally occurring plant-like substance as a chelating agent for the preparation of a synthetic chelate is preferable to the application of a non-physiological substrate, e.g. There is a risk of chelate overdose, which has an adverse effect on plant life processes. The phytotoxicity of the preparation is manifested by premature yellowing of the leaves or their fall. Certain types of wine are particularly sensitive to chelates. In the same phytotoxic manner, more frequent application to plants of non-physiological chelates is manifested.

The chelate toxicity is that it chemically binds to various vital compounds in plants, especially enzymes such as phosphatase, polyphenol oxidase, catalase, etc. Many metals, microelements, act as prosthetic groups or enzyme activators, and an overdosed chelate can bind metal from the enzyme and make it biologically inactive. This disrupts the biochemical mechanisms and the normal course of metabolic processes in the plants, which externally shows signs of phytotoxicity.

The risk of plant toxicity in overdose is reduced by the use of naturally occurring substances or their close analogues as chelating and solubilizing agents. One of these is the dicarboxylic dihydroxy acid, tartaric acid or salts thereof used in the present invention.

A commercial preparation containing titanium in a chelate bond has been developed. It was found that the application of 1 to 5 g of titanium per hectare increased the sugar content of sugar beet by 15 to 20 percent. It has also been shown that the active ingredient of the preparation increases the amount of chlorophyll in plant cells, accelerates photosynthesis, increases the degree of utilization of basic nutrients and other microelements, causes a stronger growth of plants, increases crop yield and improves production quality.

After application of the titanium solution, higher yields and better fruit quality were observed in tomatoes, peppers and cucumbers, but the young seedlings, where titanium accelerated their growth, had a positive effect. Fruit crops, such as apples, were 5-15% higher and found higher in sugar. In wine, the sugar content of grapes increased by 6 to 15% and simultaneously the acid content decreased. Titanium solution also had a positive effect on all decorative flower cultures. The direct effect of titanium on microbiological fixation of nitrogen by tuberous bacteria in legumes has also been demonstrated.

For the preparation of the stable titanium concentrate according to the invention, it is advantageous to start from a solution of titanyl sulphate obtained as an intermediate in the production of titanium dioxide by a sulphate process in which the solubility of the titanium is ensured by a sulfuric acid environment. This solution normally contains about 100 g of TiO2 / l, but other titanyl sulfate may also be used.

It is an object of the invention that tartaric acid is added to the titanyl sulfate solution in the substance or in the form of an aqueous solution. Instead of free tartaric acid, tartrates such as Seignet's salt can be used. The solution is then well mixed and neutralized with ammonia water to a pH of 6-8, whereby the initially milky mixture is completely clear. The titanium solution thus prepared is stable over a wide pH range of 2 to 12, and can be arbitrarily diluted with water and mixed with acidic or alkaline solutions without precipitation of titanium.

The titanium concentrate is particularly suitable for the enrichment of commonly produced liquid fertilizers such as NP solutions, etc. It can also be combined with plant protection agents against insects, fungi, molds and weeds with the exception of oil preparations. The recommended concentration of titanium in the spray solution is 4.5 mg / l, for large-area application it is dosed 4.5 g / ha.

A stable titanium solution having a titanium concentration of greater than 10 g / l can be prepared as described, but for practical use it is best to select a concentration of 4.5 g Ti / l to dilute the composition for application at a ratio of 1: 1000.

The titanium concentrate prepared according to the invention can be mixed with alkaline solutions. In addition, it has a remarkable buffering capacity, so that the addition of a strong mineral acid or an alkaline hydroxide causes only a slight change in pH without precipitating the active ingredient. Thus, it is also possible to use hydrochloric acid or sulfuric acid to adjust the pH to the value desired by the customer. sodium or potassium hydroxide solution.

Example 1

To 500 L of 4% tartaric acid solution was added 100 L of titanyl sulfate containing about 100 g TiO 2 / L with stirring. The mixture is mixed well and then neutralized with 25% ammonia water until the initially cloudy solution is completely clear, i.e. until a pH of 6-8 is reached. The ammonia water requirement for neutralization depends on the free sulfuric acid content of the titanyl sulfate and is usually 50 to 70 L The titanium content of the stable concentrate produced is 4.5 g Ti / l.

Example 2

20 kg of tartaric acid are poured into 100 l of titanium sulphate at a concentration of 100 grams of T102 / L with stirring. Upon complete dissolution of the substance, the contents are neutralized with 10% ammonia water to a pH of 6-8 while stirring vigorously. The titanium content of the stable concentrate produced is 22.6 g Ti / l.

Example 1 -and -d 3

40 g of potassium sodium tartrate are dissolved in 400 l of water and 1-00 l of titanyl sulfate of 100 g TiO2 / l are added with stirring. The mixture is then neutralized with 25% ammonia water to a pH of 6-8. The titanium content of the titanium concentrate produced is 6.7 g of Ti / l.

Claims (1)

Process for preparing a stable concentrated titanium solution universally applicable in supplementary plant nutrition, characterized in that the titanyl sulphate solution is treated with a stoichiometric amount of tartaric acid or its salts and then the mixture is optionally neutralized with ammonia water to pH