Coated fertilizer with swill oil as filming material

A kind of hogwash oil and fertilizer technology, applied in the form of fertilizer, fertilizer mixture, application, etc., can solve environmental pollution and other problems, achieve the effect of low production cost, important social significance, and solve environmental and sanitation problems
CN100351214CInactive Publication Date: 2007-11-28SOUTH CHINA AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA AGRI UNIV
Publication Date
2007-11-28
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The present invention provides one kind of coated fertilizer, and its filming material consists of swill oil 16-54 weight portions, 4, 4'-diphenylmethane diisocyanate 6-34 weight portions and inorganic stuffing 33-67 weight portions. The filming material has low cost and is degradable, and the utilization of swill oil can change waste into useful material and is favorable to environmental hygiene.
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Description

technical field

[0001] The invention relates to the field of coated fertilizers, in particular to a coated fertilizer using hogwash oil to prepare membrane materials. Background technique

[0002] Hogwash oil is non-edible toxic and harmful oil obtained by extracting waste food in the catering industry through simple heating and dehydration, slag removal, neutralization and other processes. In recent years, in many developed cities, criminals often mix it into cooking oil for illegal sales, seriously endangering people's health. If it is not recycled, it will not only waste precious natural resources, but also cause secondary pollution.

[0003] At the same time, in order to solve the problem of low utilization rate of traditional fertilizers, slow / controlled release fertilizers, especially coated fertilizers, have also achieved great development in the world, such as US patents US3475,154, US3264089, US5599374, Canadian patents CA2135788 and others. The problem with thes...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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