DE658760C - Process for processing according to the foam swimming process using tea oils - Google Patents

Description

It is known to use tar oils as foaming oils in swimming pool treatment. As such tar oils come into question the distillation products from the hardwood, Softwood, hard coal and lignite distillation. It is also known by fractional distillation of phenols and cresols obtained from coal tar or hydrogenated phenolic and cresolic acids as foaming agents in swimming pool treatment to use. However, all of these tar oil products have opposite Pine oil known as a comparison foaming oil has the disadvantage that it has a high content of Contain polymerisation products and resins which reduce the properties of a foaming oil. The content of Polymerization products and resins give the tar oils a strong character Collecting effect - which may be wanted in some cases of swimming pool preparation and therefore purposely brought about by artificial polymerization - that for a however, good foamer oil is always undesirable. This has an undesirable collecting effect As a result, when using tar oils as foaming oils, a considerable proportion is always present of gangue minerals along with the floating ores and minerals in the foam arrives and a high enrichment of the ores and minerals to be extracted prevented in swimming concentrate. The collecting property of those contained in the tar oils has a particularly unfavorable effect Polymerization products in the selective swimming pool treatment of various Metal components made from complex ores. So z. B. in lead-zinc separation when using common tar oils, a considerable proportion of the zinc blende with the lead concentrate, so goes for the Zinc production lost. In the case of copper pyrites, the pressing of the pyrite prepares Difficulties in the use of tar oils during the floating of the copper, since the lime used as a thickener is not always capable of the To keep down pyrite here to a large extent. However, the tar oils are generally fond related as they are considerably cheaper than those used to produce them Pine oils subjected to cleaning process. It has now been found that the unpleasant .Collecting effect of the so-called tar oils can be eliminated if the oils have a be subjected to further distillation with the addition of finely divided metals. Due to the reducing effect of the metals, cleavage takes place during the distillation the products of polymerization of the tar oils take place, whereby a distillate is obtained which is practically free of polymerization products and resins. This distillate is very suitable for use as foaming oil in the foam swimming process; it doesn't have the uncomfortable side effects of being on Tar oils distilled normally are from

*) The patent seeker stated as the inventor:

Dr. Wilhelm Schäfer in Bochum.

light color, clear consistency and can in all respects as an excellent foaming oil Find use.

To explain the better effect of further distillation with the addition of tar oils obtained from finely divided metals compared to the effect of normal Ways of distilled tar oils and polymerized ones Mineral oils are the following examples

ίο stated:

Example I.

A Serbian lead-zinc-pyrite complex ore with an average metal content of 6.20% Pb, 8.30% oZn, 15.6%; Fe ¹ ^ was a) using a hardwood tar oil distilled with zinc dust, b) using a normally distilled hardwood tar oil, c) using an oil mixture of 4 parts of polymerized mineral oil and ι part of isobutyl alcohol and d) using an oil mixture of 4 Parts of petroleum cracking residues and 1 part of sodium trium sulfooleate on lead. The comparison tests, which were carried out under otherwise identical conditions, led to the following results:

a) 1000 g of ore were extracted during an outcrop Processed on lead to a degree of fineness of 0.10 mm. Of additives were used: hardwood tar distillate with zinc dust

distilled 0.04 g,

quick lime 1.00 g,

Ammonium zinc hyposulnt 0.4 g,

Ethyl xanthate ..... '* ....-. 0.02 g,

Soda 0.3 g.

product Weight
percent Pb% kg Application
% Zn »/ ο kg Application
% Pb concentrate I ....
Pb concentrate II ...
Zn residue 5.2
<8.4
3.2
91.6 74.6
<6 ₉ , 6
61.6
0.42 3.88.
<5.85
i, 97
0.38 62.3
<93.9
31.6
6.1 0.91
<i, 43
2.30
9.11 0.05
<0.12
0.07
8.35 0.6
<1.4
0.8
98.6 Raw ore 100.0 6.20 (6.23) 100.0 8.30 (8.47) 100.0

b) 100 g of ore were selectively extracted during digestion to 0.1 mm degree of fineness Processed lead. The same additives were used as under a, however instead of hardwood tar oil distilled with zinc dust, a normal way was used obtained tar oil distillate related.

product Weight
percent Pb% kg Application
% Zn% kg Application
% Pb concentrate I ....
40
Pb concentrate II ...
Zn residue 3.6
<9.2
5.6
90.8 70.5
< 60.5
54.2
0.63 2.54
<5.57
3.03
0.57 41.4
< 90.7
49-3
9.3 2.07
<3, O4
3.8i
8.84 0.07
<0.28
0.21
8.04 0.8
<3.3
2.5
96.7 45 raw ore 100.0 6.20 (6.14) 100.0 8.30 (8.32) 100.0

c) 1000 g of ore were extracted during an outcrop

Processed on lead to a degree of fineness of 10 mm. Of additives were the same as used under a, but instead of the one distilled with zinc dust Hardwood tar oil became an oil blend of 4 parts polymerized mineral oil and iTeil Isobutyl alcohol related.

product Weight
percent Pb% kg Application
% Zn% kg Application
% ⁵ "> concentrate I
Concentrate II
Residue. 6.4
<9.9
3.5
90.1 63.5
<57.6
46.6
0.30 4.07
<5.7O
1.63
0.27 68.2
< 95.5
27.3
4.5 6.6
<7.8
10.1
8.2 0.42
<o, 77
0.35
7.39 5, i
<9.4
4.3
90.6 Ou
Raw ore 100.0 5.9 (5.97) 100.0 8.1 (8.16) 100.0

d) 100 g of ore were extracted during an outcrop Processed on lead to a degree of fineness of 0.10 mm. Of additives were the same as applied under a, however

product Weight
percent Pb% kg Application
% Zn% kg Application
% _χ Concentrate I
Concentrate II
Residue 7.1
< 11.3
4.2
88.7 59.2
<5o, o
34.3
0.28 4.20
<5.64
1.44
0.25 71.3
<95.8
24.5
4.2 7.8
<9, i
II.5
7.9 0.55
<1.03
0.48
7.02 6.8
< 12.8
6.0
87.2 '5 raw ore 100.0 5.9 (5.89) 100.0 8.1 (8.05) 100.0

Instead of the hardwood tar oil distilled with zinc dust, a mixture of 4 parts was used Petroleum crack residues and 1 part sodium sulf ο oleate are used.

For the application of distilled under addition of zinc dust creosote accumulation was in both concentrates together 69.6 "/ 0PB ₁ the zinc content of 1.43 ° / ,, Zn, for all other experiments in which used in the normal way distilled tar oil, mineral oils or polymerised on the other hand, the Pb concentration was lower and the zinc content in the combined concentrates was significantly higher.

Example II

An Italian lead-zinc complex ore in quartz gangue was discovered during an outcrop processed to 0.15 mm selectively on lead and zinc; in the case of a with Softwood tar distillate worked, which was subjected to the previous distillation with copper shavings had been; in case b became a

Related to distillate obtained by normal distillation of the coniferous tar oil was. Further flotation agents were added in both experiments

with lead notation

Soda 0.2 g to 1000 g of ore,

Animonium zinc hypo-

sulfite 0.2 g - 1000 g -.

in zinc flotation

Copper sulphate 0.5 g per 1000 g of ore,

Ethyl anthogenate ... 0.1 g - 1000 g -.

a) experiment using softwood tar oil, distilled with the addition of copper shavings; it required: 0.03 g in the Lead flotation and 0.05 g in zinc flotation per 1000 g of ore.

product Weight
percent Pb% kg Application
% Zn% kg Application
0 / Pb concentrate
Zn concentrate
Bersfe 4.9
19.7
75.4 73.8
0.7
0.12 3.62
0.14
0.09 94.0
3.6
2.4 3.6
59.3
o, 53 0.18
11.69
0.40 1.5
95.2
3.3 100.0 3.92 (3.85) 100.0 12.2 (12.27) 100.0 Raw ore

b) experiment using coniferous tar oil, distilled in the usual way; it required: 0.03 g in the lead

floating processing and 0.05 g in the zinc floating processing to 1000 g of ore.

product Weight
percent Pb% kg Application
% Zn% kg Application
% Pb concentrate
Zn concentrate
mountains 4.9
19.6
75.5 72.5
0.8
0.20 3.55
0.16
0.15 92.0
4.1
3.9 5.8
57.8
0.84 0.28
11.32
0.63 2.3
92.6
5, i 100.0 3.92 (3.86) 100.0 12.2 (12.23) 100.0 Raw ore

A comparison of the two test tables shows that when using the Copper shavings distilled softwood tar oiljS ·; the better Pb enrichment and the lower Zn content in the Pb concentrate ore * became.

Example III

A gold-bearing copper-pyrite complex ore from Yugoslavia was at one degree of crushing from under ο, ΐ ο mm for comparison once a) using a with the addition of finely divided copper

15 product Weight
percent Gn% kg Application
% Au g / t G Application
% concentrate
Beree 18.3
81.7 22.4
0.40 4.11
0.33 92.6
7.4 6.45
0.40 1.181
0.327 78.3
21.7 100.0 4.2 (4.44) 100.0 1.3 (1,508) 100.0 20th
Raw ore,

b) Experiment using softwood tar oil, distilled without addition.

In the above comparative example, too, when using the with the addition of finely divided copper distilled softwood tar oil achieves better results, also with regard to the gold recovery.

The examples given show that the addition of finely divided metal Tar oil distillates obtained have a favorable selective effect as foaming oil in the Exercise flotation of the ores.

The beneficial effect does not just extend to improving metal enrichment and the reduction of the content of the accompanying metals, but in some cases also to an increase in the * Metal removal. The tar oils are distilled in a known manner, the addition on finely divided metals, two-distilled softwood tar oil, another Time b) using a tar oil distilled without addition ;;! ·, Selecting for copper '«Is prepared for swimming. As a pyrite pushing jet quick lime and ammonium hydroxide were used. To enliven the "Copper flotation found a small addition of potassium butyl xanthate instead of.

a) experiment using softwood tar oil, distilled with the addition of finely divided copper.

see S to 20 ° / o vary depending on the salary of crude oil in polymerisation products and resins. It should also be mentioned that, if necessary, acids or alkalis are added to the finely divided metal can to promote the reduction and splitting of the polymerization products.

Claims (1)

Claim: Process for the preparation of ores, minerals and the like according to the foam floating process using tar oils, the be subjected to a further distillation, characterized in that the Distillation is carried out with the addition of finely divided metals and thereby the tar oils are freed from polymerization products, so that they only have foaming effect. product Weight
percent Guo _{/ O} kg Application Au g / t G Application concentrate 23.6
76.4 16.6
0.57 3.92
0.44 89.9
10.1 3.6
0.60 0.850
0.458 65.0
35.0 Mountains .. 100.0 4.2 (4.36) 100.0 i, 3 (1,308) 100.0 Raw ore