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Start Over Subject kaučuk

1. Československá delegace studující kaučukodárné rostliny v SSSR v roce 1936 /

Creator:
Marek, Martin,
Subject:
průmysl obuvnický, cesty zahraniční, kaučuk, vztahy československo-sovětské, zemědělství sovětské, zahraniční politika, mezinárodní vztahy, světové dějiny 1918-1945, SSSR, zemědělství, rybníkářství, lesnictví, myslivost, průmysl, manufaktury, hornictví, pivovary, and Československo 1918-1945
Language:
Czech
Description:
Studying Rubber Yielding Plants in the USSR by a Czechoslovak Delegation in 1936.
Rights:
unknown

2. Co-coking of stamped charges with the waste organic admixtures

Creator:
Pavel Straka
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, koks, plasty, kaučuk, coke, plastics, rubber, co-coking, charge, 7, and 551
Language:
English
Description:
By use of plastic or rubber admixtures in the stamped charges, it is possible to affect the properties of tar, in contrast to the calorific value of resulting coking gas; further, it was found that the reactivity- and strength parameters of the obtained blast-furnace coke are good or acceptable. Unused plastics or rubber can economize on part of the coal used in a stamped charge. Additions of both light and heavy plastics can be used up to 5 % of a charge weight; in the case of rubber it is not advisable to exceed 2 wt.-% in a charge. In contradiction to the other methods, which process the unused plastics of up to a content of 1 % in a charge, it is possible, in the case of used stamping method, to process even 2 % or more., Pavel Straka., and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Co-gasification of rubber with brown coal

Creator:
Pavel Straka, Kříž, Vlastimil, and Bučko, Zdeněk
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, kaučuk, hnědé uhlí, rubber, lignite, co-gasification, brown coal, moving bed, reactivity, 7, and 551
Language:
English
Description:
On the basis of laboratory and industrial experiments it was found that rubber can be treated by co-gasification with brown coal, namely in the process of the oxygen-steam pressure gasification in a moving bed (Lurgi gasification process). Considering the very low reactivity of the residual char from rubber, the optimal content of the rubber particles in the mixture being gasified should probably not exceed 10 wt.-%, but short-term increases in the proportion of these particles (up to 20 wt.-%) will not cause technological problems or significant economic losses., Pavel Straka, Vlastimil Kříž and Zdeněk Bučko., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Pampeliška koksaghyz - alternativa ke kaučukovníku

Creator:
Tomáš Černý
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Botanika, hvězdnicovité, kaučuk, 2, and 58
Language:
Czech
Description:
Natural rubber is currently produced largely from the tropical Rubber Tree (Hevea brasiliensis), which is grown on large plantations in south-eastern Asia. However, some rubber-forming plants can also be found in the temperate zone. The most important species is the tiny dandelion named Koksaghyz or the Russian Dandelion (Taraxacum koksaghyz), belonging to the Asteraceae family and native to south-eastern Kazakhstan. This plant has an exciting history and recently has been intensively researched as an alternative to Hevea rubber. This article describes value of this member of Asteraceae family for the human community. and Tomáš Černý.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public