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Flashcards in Industrial Processes Deck (31):
1

most common way of producing alumina, the oxide of aluminum

Bayer Process

2

process involves refining (removing impurities from) bauxite, an ore of aluminum, by soaking the bauxite in sodium hydroxide. this refined bauxite becomes alumnia, which is later smelted into aluminum

bayer process

3

process typically involves four stages: digestion, clarification, precipitation, and calcination

bayer process

4

process made in 1887 by Karl *name*

bayer process

5

became the first worldwide way of mass-producing steel, and allow of iron

Bessemer process

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involves highly compressed, hot air being blown through molten iron, after which the oxygen in the air reacts with the impurities (which can include sulfur and manganese) in the molten iron. this causes impurities to burn out of the now purified metal

Bessemer process

7

air flows through small holes called tuyeres

Bessemer process

8

created in 1855 and 1857 by Henry *name* and William Kelly

Bessemer process

9

this process is the industrial process used to produce sulfuric acid. it replaced the now defunct lead-chamber process

contact process

10

in the past, the catalyst used in the process was platinum, but after it was discovered that platinum could lead to poisoning, a transition was made to a vanadium oxide catalyst

contact process

11

other products of the process include sulfur trioxide and oleum

contact process

12

created by peregrine Philips in 1831

contact process

13

as its name suggests, the process involves making use of an electric current to decompose a chemical, whose parts form at both the anode and the cahode

electrolysis

14

one of the most common applications of it is on water; that process breaks down water into oxygen and hydrogen gas

electrolysis

15

british chemist Sir Humphrey Davy made use of it to discover barium, calcium, potassium, and sodium

electrolysis

16

industrial process that carries out nitrogen fixation via the reaction of nitrogen and hydrogen. used to produce ammonia

Haber-Bosch Process

17

the ammonia is produced form the one nitrogen atom and the three hydrogen atoms by means of an iron catalyst

Haber-Bosch Process

18

one of the most common uses of the this process is the production of fertilizer

Haber-Bosch Process

19

process invented in 1909 by Fritz *name*

Haber-Bosch Process

20

the most common way of producing aluminum, unlike the Bayer process which produces alumina. it follows the bayer process in the steps to produce aluminum

hall- heroult process

21

a typical procedure in this process is the use of a cryolite bath, in which alumina is dissolved. afterwards, an electric current is sent through the mixture of cryolite and alumina

hall-heroult process

22

process made in 1886 by Charles Martin *name* and Paul *name*

hall-heroult process

23

industrial process that is currently used to produce metallic titanium. it replaced the now defunct hunter process

kroll process

24

titanium is produced from reducing titanium tetrachloride by using magnesium. the process makes use of fractional distillation to separate different substances

kroll process

25

made in 1940 by will j. *name*

kroll process

26

most common process to make nitric acid. it replaced the now defunct birdeland-eye arc process

Ostwald process

27

oxidizes the ammonia produced from the haber process by using a catalyst that contains the element rhodium

Ostwald process

28

aqua regia can be formed by using the Ostwald process because the aqua regia is comprised of nitric acid and hydrochloric acid

Ostwald process

29

created in 1902 by William *name*

ostwald

30

process that is used to purify silicon by reacting it with hydrochloric acid

siemens process

31

reaction between the HCL and the silicon creates trichlorosilane; at high temperatures the trichlorosilane melts and yields silicon rods, which are in a purer form than the silicon the process started with

siemens process