CH275448A

CH275448A - Fertilizer, manufacturing process for this fertilizer and installation for implementing this process.

Info

Publication number: CH275448A
Authority: CH
Inventors: Solignac Andre-Jean-Auguste
Original assignee: Solignac Andre Jean Auguste
Priority date: 1943-06-25
Filing date: 1947-12-30
Publication date: 1951-05-31

Description

  

  Engrais, procédé de fabrication de cet engrais et installation pour la mise en     oeuvre     de ce procédé.    On connaît déjà, d'une part, des engrais  minéraux à base d'azote, de phosphore, de     po-          tassiuni,    et, d'autre part, des     engrais    organi  ques à base de produits provenant de la     dé-          r-oniposition    de matières organiques, notam  ment les fumiers, terreaux, etc. Mais l'action  séparée de ces engrais n'est pas     sufl.'isamment     efficace.  



  <B>La</B> présente invention a pour but de four  nir un     en-rais    relevant à la fois du type  mi  néral  et chi type      organique     et, de ce fait,  particulièrement efficace. L'engrais selon l'in  vention est. caractérisé en ce     qu'il    comprend  un     niélan#,,e        d'humate    et de phosphate (phos  phate<B>(le</B>     chaux    par exemple), et en ce que       l'acide    phosphorique qu'il     renferme    se trouve,       en    partie au moins, sous une forme     directe-          nient        assimilable    par les plantes.

    



       On    peut avantageusement fabriquer cet       engrais    en. mélangeant des composés végétaux  humides en cours de décomposition, tels que la  tourbe, avec une matière contenant un phos  phate, notamment phosphates naturels, scories  de     déphosphoration,    superphosphate.  



  On sèche le mélange ainsi     obtenu,    puis on  le broie, ce qui permet d'obtenir un engrais  en poudre directement utilisable.  



  L'invention s'étend non seulement au pro  cédé ci-dessus, mais aussi à. une installation  pour la mise en     aeuvre    de ce procédé. Celle-ci       eoiiiprend    un     séchoir,    dans     lequel    est reçu et  séché le mélange de composés     végétaux    hu  inides et de matière contenant un phosphate,    et un     broyeur-tamiseur,    dont le fond, par       exemple,    est muni d'un tamis pour broyer la  matière sèche et tamiser la poudre obtenue.  



  Lorsqu'on utilise pour préparer un engrais       conforme    à. l'invention un phosphate insoluble,  l'acide humique du composé végétal en cours  de décomposition agit. sur une partie au moins  du phosphate ajouté pour le transformer en  un phosphate directement assimilable par les  plantes.  



  L'engrais selon l'invention peut être, le  cas échéant, encore additionné de produits       renfermant    des éléments nécessaires ou favo  rables à la croissance des plantes.



  Fertilizer, manufacturing process for this fertilizer and installation for implementing this process. We already know, on the one hand, mineral fertilizers based on nitrogen, phosphorus, potassiuni, and, on the other hand, organic fertilizers based on products derived from the de-oniposition of organic matter, in particular manure, potting soil, etc. But the separate action of these fertilizers is not sufficiently effective.



  <B> The </B> present invention aims to provide an en-rais relating to both the mineral type and chi organic type and, therefore, particularly effective. The fertilizer according to the invention is. characterized in that it comprises a nielan # ,, e of humate and phosphate (phos phate <B> (lime </B> for example), and in that the phosphoric acid it contains is found at least in part in a form which can be readily assimilated by plants.

    



       This fertilizer can advantageously be made in. mixing wet decomposing plant compounds, such as peat, with a material containing a phosphorus, especially natural phosphates, dephosphorization slag, superphosphate.



  The mixture thus obtained is dried, then it is ground, which makes it possible to obtain a powdered fertilizer which can be used directly.



  The invention extends not only to the above process, but also to. an installation for the implementation of this process. This consists of a drier, in which the mixture of oily plant compounds and material containing a phosphate is received and dried, and a sieve-mill, the bottom of which, for example, is provided with a sieve for grinding the material. dry and sift the resulting powder.



  When used to prepare a fertilizer conforming to. the invention an insoluble phosphate, the humic acid of the decomposing plant compound acts. on at least part of the phosphate added to transform it into a phosphate directly assimilable by the plants.



  The fertilizer according to the invention may, where appropriate, be further supplemented with products containing elements necessary or favorable to the growth of plants.

Claims

REVE \ DICATIONS: I. Fertilizer, characterized in that it comprises a mixture of humate and phosphate, and in that the phosphoric acid which it contains is found, in part at least, in a form directly assimilable by plants. II. Process for the manufacture of the fertilizer according to claim I, characterized in that mixing moist plant compounds in the course of decomposition with a material containing a phosphate, the mixture thus obtained is selected and then it is crushed. III.

Plant for carrying out the process according to Claim II, characterized by a dryer and a sieve-mill.