NZ216076A - Preventing concretion of fertilisers by incorporating aldehydes - Google Patents
Preventing concretion of fertilisers by incorporating aldehydesInfo
- Publication number
- NZ216076A NZ216076A NZ21607686A NZ21607686A NZ216076A NZ 216076 A NZ216076 A NZ 216076A NZ 21607686 A NZ21607686 A NZ 21607686A NZ 21607686 A NZ21607686 A NZ 21607686A NZ 216076 A NZ216076 A NZ 216076A
- Authority
- NZ
- New Zealand
- Prior art keywords
- concretion
- fertilizer
- preventing
- compound
- hydroxy
- Prior art date
Links
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- Electric Suction Cleaners (AREA)
- Fertilizers (AREA)
Description
New Zealand Paient Spedficaiion for Paient Number £16076
2 1607
o
Priority D.:te.s): ... 8. 7f?.7$^
Complete Spj-ciFiled: Ir.f'&f?. C.'.'ss: 3/bp
Portion Da'c: . .. 3 0 MAY .1$$ .
fO. .V ■
NO DRAWINGS
1
Patents Form No. 5
NEW ZEALAND
PATENTS ACT 1953
COMPLETE SPECIFICATION
"CONCRETION PREVENTING AGENT FOR FERTILIZERS"
U
-lyWE, KAO CORPORATION of 14-10 Nihonbashi-Kayabacho 1-chome, Chuo-ku, Tokyo, Japan, a Japanese corporation o
hereby declare the invention, for which -I-/we pray that a patent may be granted to -me/us, and the method by which it is to be performed, to be particularly described in and by the following statement:-
ffe,'towed by page 7 A.)
v
2 16076
CONCRETION PREVENTING AGENT FOR FERTILIZERS
The preseut invention relates to a concretion preventing agent for concretive fertilizers such as, for example,
urea, ammonium sulfate, ammonium nitrate, ammonium phosphate, ammonium chloride, potassium chloride, high-grade complex fertilizers and mixed fertilizers thereof.
Statement of Prior Arts
Chemical substances used as fertilizers suffer from the defect that they may concrete during the storage and make their workings poor. Therefore, various measures to prevent the concretion have hitherto been investigated to make many proposals. The proposed methods to prevent the concretion are roughly classified as follows.
(1) A method which comprises mixing insoluble fine powder such as diatomaceous earth, talc, kaolin, silicic acid powder or a fatty acid calcium salt with a concretive substance, thereby preventing the direct contact of the concretive substance.
(2) A method which comprises coating a concretive substance with mineral oil, water soluble macromolecules or the like to form a waterproofing film, and thereby forbidding water from going in and out the concretive substance and preventing the formation of bridging crystals among particles.
- lar
2 16076
(3) A method which comprises spray-treating an aliphatic amine, aliphatic diamine or salt thereof to form a monomolecular file on the surface of a concretive substance, and thereby changing the surface property of the concretive substance and making its concretion difficult.
(4) A method which comprises changing the crystal state by the crystal metamorphism of a complex of macromolecules and an anion surfactant to urea or magentic acid to ammonium sulfate, and thereby preventing the concretion.
(5) A method which comprises adding formalin to fused urea, converting a part of the urea to ureaformalin resin, subsequently performing granulation, and thereby preventing the hygroscopicity and increasing the hardness of granules of thje granulated fertilizer.
By this method, the formation of fine powder during the distribution of the fertilizer can be prevented, whereby the fertilizer is prevented from concreting.
However, the above-described methods are not necessarily satisfied with. Namely, by the methods (1) and (2), the satisfactory effect of preventing the concretion may not be obtained even with the addition of several percent of the insoluble fine powder or coating substance. In the case of the method (3)» the subjected concretive fertilizers are restricted and, at the same time, it is difficult to coat the fertilizer uniformly with the aliphatic amine. Further, it is difficult to use the fertilizer because of
2 1 6076
its strong smell of amine and skin irritation.
The method (k) has little effect for high-grade complex fertilizers, though it is efficacious for urea, ammonium sulfate, ammonium nitrate, etc.
Although the method (5) is used for urea, it has little effect of preventing the concretion and has the problem of the toxicity of the formalin.
Summary of the Invention
Accordingly, the inventors have made intensive studies using various concretive fertilizers in order to obtain an excellent concretion preventing agent free from the above^described drawbacks. As a result, they have completed the present"invention.
Namely, the present invention provides a concretion preventing agent for fertilizers, which comprising a compound of the general formula
R - CHO (1)
wherein R denotes a straight-chain or branched-chain alkyl group or alkenyl group which may contain a hydroxyl group having to 30 carbon atoms.
The invention further provides a method for preventing a fertilizer from concretion by mixing it with a compound of the above shown formula (1)
in which R is an alkyl, an alkenyl, a hydroxy-having alkyl or a hydroxy-having alkenyl, having 4 to 30
2 16076
carbon atoms, being either straight or branched.
It is preferable that R in the formula (1)
has 7 to 30 carbon atoms.
The invention moreover relates to a fertilizer composition which comprises a fertilizer and 0.005 to 1.0 percent by weight of the compound as defined above.
In the compound of the general formula (1) according to the invention, the carbon number of the alkyl group or alkenyl group has a critical meaning. Namely, the satisfactory effect of preventing the concretion can not be obtained with an aldehyde containing an alkyl group or alkenyl group of carbon number 3 and below. Only with the carbon number k or more, the satisfactory effect of preventing the concretion can be obtained. Aldehyde containing the alkyl group or alkenyl group of carbon number ? or more is especially preferable. Examples of the preferable aldehyde include octanal, nonanal, ^-hydroxy nonanal,
decanal, undecanal, dodecanal, tridecanal, tetradecanal, pentadecanal, hexadecanal, hexadesenal, 7,11-dihydroxy hexadecanal, isohexadecanal, octadecanal, etc.
Fertilizers to which the concretion preventing agent of this invention is applied are not specially restricted. The excellent effect of preventing the concretion can be obtained for any of urea, ammonium Bulfate, ammonium nitrate, potassium chloride, ammonium phosphate, high-grade complex
2 160 76
fertilizers and appropriately mixed fertilizers thereof.
The concretion preventing agent of the present invention is sprayed into fertilizers intactly or after dilution with machine oil or the like. It may be added to the fertilizers in the fused state before granulation to show more excellent effect of preventing the concretion.
When the concretion preventing agent of the present invention shows the effect of preventing the concretion, the amount of the concretion preventing agent used is more than 0.005% hy weight, preferably more than 0.05% by weight, based on the amount of the fertilizer.
Formalin has problems in respect of safety for workers; it is high in toxicity upon contacting or absorbing and shows a carcinogenic character in the case of continual contact over a long period of time. However, it is low in price and, hitherto, no substitute for it has been found.
The compound of the present invention is remarkably improved in safety, since it contains a straight-chain alkyl group or alkenyl group though it has a functional group of aldehyde. For example, straight-chain aldehydes of carbon^number 8 to 12 are used as the ingredients of perfume and-are abundantly contained in leaves of plants. Further, the compound may be used in combination with
2 1607 6
inorganic substances such as clay, talc, diatomaceous earth, etc. to show more excellent effect of preventing the concretion.
By using the concretion preventing agent of the present invention, the excellent effect of preventing the concretion can be obtained even for fertilizers of large grain size for which the effect has not been easily obtained up to now.
(Working Examples)
The present invention will be explained hereinafter by way of examples. However, the invention is not limited to the examples.
Example 1
Using urea of large grains (manufactured by Miteui Toatsu Chemical Industry Co., Ltd., diameter: 3-5 nun) as a fertilizer, 0.1% by weight of the concretion preventing agent of the present invention was sprayed into the urea followed by allowing to stand for 30 minutes at a constant temperature of 75* C or 130° C. After cooling, i+5 g of the resultant fertilizer was charged into a cylindrical hard vinyl chloride mold (inside diameter: k cm) followed by applying a pressure of 2 Kg/cm2 and allowing to stand for 14 dayaat 3(f C and a relative humidity of Q0%. Thereafter, the fertilizer was taken out of the mold, and its breaking strength was measured using a Tensilon compressive strength
2 1607
C
gauge. The concretion preventing rate of the fertilizer was determined by the following equation. The results are shown in Table 1.
Concretion preventing rate (%)
Breaking strength of Breaking strength of nonaddition group — addition group
Breaking strength of nonaddition group x
■>
/
/
/
-7—
2 1 6076
Example 2
Using a high-grade complex fertilizer (N-P-K, 15-15-15)* 0.1% by weight of the same concretion preventing agent of the present invention as in Table 1 was sprayed into the fertilizer followed by allowing to stand for 30 minutes at a constant temperature of 75" C or 130"C. After cooling, 45 g of the resultant fertilizer was charged into a cylindrical hard vinyl chloride mold (inside diameter: k cm) followed by applying a pressure of 2 Kg/cm1 and allowing to stand for 14 days at 3Cf C and a relative humidity of 80%. Thereafter, the fertilizer was taken out of the mold, and its breaking strength was measured using a Tensilon compressive strength gauge. The concretion preventing rate of the fertilizer was determined by the above-described equation. The results are shown in Table 2.
2 16076
Example 3
Using potassium chloride as a fertilizer, 0.3% by weight of the same concretion preventing agent of the present invention as in Table 1 was sprayed into the potassium chloride. 45 g of the resultant fertilizer was charged into a cylindrical hard vinyl chloride mold (inside diameter: 4 cm) followed by applying a pressure of 2 Kg/cm2 and allowing to stand for 14 days at 30° C and a relative humidity of 80%. Thereafter, the fertilizer was taken out of the mold, and its breaking strength was measured using a Tensilon compressive strength gauge. The concretion preventing rate of the fertilizer was determined by the above-described equation. The results are shown in Table 3.
V J
Comparative agent '
Agent of the invention o- Ln
CN FO
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s: x u* V
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s o-o *> X X
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I
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a
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CO
vj CK
o tn o o in v»
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cn
*© ro
«©
cn -o o
Q3
cn
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o o u\ cn
— I* ro cn cn cn c*
cn cn cn in
»o -o ro N3
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&
o o
3
o
M O (+ K-
O 3
< <6
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<£
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K »
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a »
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< o
9 o
3 3 IT O —. K- »t
V** J w2§
fT
» *0 9
✓—\» CJ
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ft
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Table 2
^ Concretion preventing agent (
7
1C
1
3 0 C
/S
Breaking strength
(lf/a»2 )
Concretion preventing rate
(%)
Breaking strength- -( tf/cn1 )
Concretion pre-/enting rate (%)
1.
chj(ch2)jcho
4 . 0
6 2.9
3.2
6 5.2
2
chj(oh2)6cho
1 . 5
8 6 . 1
1 . 5
8 3.6
3
ch j(ch j)b cho
1 . 0
9 0.7
0 . 8
9 1.3
1 .1
4
ch,(chz),ch(ch2)2cho oh
1 . 0
9 0.7
0 . 8
9 1.3
G 0
ch j(ch j)n cho
0. B
9 2.5
0 . 5
9 4.5
•H
A.I
c: •»
4
chJ(ch?)2ch = ch(ch2 )10cho
0. 8
9 2.5
0.5
9 4.5
>
c: •H
7
ohj(chz),ch-(ch2)j-ch-(ch2)5ch0
0 . 5
9 5.3
0. 5
9 4.5
u
X
4-»
oh oh
VM
O
8
ch j-ch-(ch 2)gcho
0. 5
9 5.3
0 . 5
9 4.5
c
<D
tr
(ch2)n
ch j
9
ch ,-cii- (ch2 ) , -ch-(ch2) 2 - oho ch, (ch2)6 ch j
0. 5
9 5.3
0 . 4
9 5.6
4) >
•H
1
hoho
7 . 9
2 <5.8
7 . <i
1 7.3
<a
M
* p
2
chj.(gh2)2ch0
7 . 9
2 6 . b
7 . 4
1 9.5
o, c 6 qi o tr» u *
3
Nonaddition
.8
—
9 . 2
—
Claims (5)
- -1- A method for preventing a fertilizer from concretion by mixing it with a compound of the formula: R - CHO (1) in which R is an alkyl, an alkenyl, a hydroxy-having alkyl or a hydroxy-having alkenyl, having 4 to 30 carbon atoms, being either straight or branched.
- . -2- A method as claimed in Claim 1, in which R has 7 to 30 carbon atoms.
- -3- A method as claimed in Claim 1, in which said compound is used in an amount of 0.00 5 percent by weight or more per the fertilizer. -13- 216076 2160.J -4- A method as claimed in Claim 1, in which .-.;./ the compound is selected from octanal, nonanal,
- 4-hydroxy nonanal, decanal, undecanal, dodecanal, tridecanal, tetradecanaol, pentadecanal, hexadecanal, hexadesenal, 7,11-aihycroxy hexadecanal, iso-hexadecanal and octadecanal. A fertilizer composition which comprises a fertilizer and 0.005 to 1.0 percent by weight of the compound as defined in Claim 1. -6- a method of producing a fertilizer composition as claimed in claim 1 substantially as described with reference to any one of the Examples. a fertilizer composition produced by the method of any one of claims 1 to 4 or 6. -
- 5- -7- -8- Q a fertilizer composition substantially as h^ein described with reference to any one of the ExampleV? J.5APR1988 -14-
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9757785A JPS6133631A (en) | 1985-05-08 | 1985-05-08 | Clamp apparatus for electric cleaner |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ216076A true NZ216076A (en) | 1988-05-30 |
Family
ID=14196096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ21607686A NZ216076A (en) | 1985-05-08 | 1986-05-07 | Preventing concretion of fertilisers by incorporating aldehydes |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS6133631A (en) |
NZ (1) | NZ216076A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2508034B (en) | 2012-11-20 | 2015-10-07 | Dyson Technology Ltd | Cleaning appliance |
GB2508035B (en) * | 2012-11-20 | 2015-03-11 | Dyson Technology Ltd | Cleaning appliance |
-
1985
- 1985-05-08 JP JP9757785A patent/JPS6133631A/en active Granted
-
1986
- 1986-05-07 NZ NZ21607686A patent/NZ216076A/en unknown
Also Published As
Publication number | Publication date |
---|---|
JPS6327005B2 (en) | 1988-06-01 |
JPS6133631A (en) | 1986-02-17 |
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