- bitumen process
- noun
: a photographic process in which advantage is taken of the fact that prepared bitumen is rendered insoluble in benzene or other organic solvents by exposure to light (as in photolithography)
Useful english dictionary. 2012.
bitumen process
Look at other dictionaries:
Bitumen process — Bi*tu men proc ess (Photog.) Any process in which advantage is taken of the fact that prepared bitumen is rendered insoluble by exposure to light, as in photolithography. [Webster 1913 Suppl.] … The Collaborative International Dictionary of English
Bitumen of Judea — The photographical process known as Bitumen of Judea is quite possibly the oldest modern photographing technique. The technique was first used by French lithographer Nicéphore Niépce in 1826. Using a tarlike material that covered a pewter plate,… … Wikipedia
asphalt process — noun : bitumen process … Useful english dictionary
Coldry Process — is a coal upgrading technology developed in Victoria, Australia by Environmental Clean Technologies Limited[1] to specifically beneficiate low rank brown coal (lignite) and sub bituminous coal by removing natural high moisture content and certain … Wikipedia
Niepce's process — Niep ce s proc ess (Photog.) A process, now no longer used, invented by J. N. Niepce, a French chemist, in 1829. It depends upon the action of light in rendering a thin layer of bitumen, with which the plate is coated, insoluble. [Obsolescent]… … The Collaborative International Dictionary of English
Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… … Wikipedia
heavy oil and tar sand — Introduction crude oils (crude oil) below 20° API gravity are usually considered to be heavy. The lighter conventional crudes are often waterflooded to enhance recovery. The injection of water into the reservoir helps to maintain reservoir… … Universalium
History of the petroleum industry in Canada (oil sands and heavy oil) — Canada s oil sands and heavy oil resources are among the world s great petroleum deposits. They include the vast oil sands of northern Alberta, and the heavy oil reservoirs that surround the small city of Lloydminster, which sits on the border… … Wikipedia
roads and highways — ▪ transportation Introduction traveled way on which people, animals, or wheeled vehicles move. In modern usage the term road describes a rural, lesser traveled way, while the word street denotes an urban roadway. Highway refers to a major… … Universalium
Steam assisted gravity drainage — (SAGD) is an enhanced oil recovery technology for producing heavy crude oil and bitumen. It is an advanced form of steam stimulation in which a pair of horizontal wells is drilled into the oil reservoir, one a few metres above the other. Low… … Wikipedia
