pressure process
101Harvey process — Har vey proc ess (Metal.) A process of hardening the face of steel, as armor plates, invented by Hayward A. Harvey of New Jersey, consisting in the additional carburizing of the face of a piece of low carbon steel by subjecting it to the action… …
102Space Shuttle design process — See also Space Shuttle program Conception and development North American Rockwell Shuttle, 1969 Even before the Apollo moon landing in 1969, in October 1968, NASA began early studies of space shuttle designs. The early studies were denoted Phase… …
103Haber process — noun an industrial process for producing ammonia from nitrogen and hydrogen by combining them under high pressure in the presence of an iron catalyst • Syn: ↑Haber Bosch process • Hypernyms: ↑industrial process …
104Haber-Bosch process — noun an industrial process for producing ammonia from nitrogen and hydrogen by combining them under high pressure in the presence of an iron catalyst • Syn: ↑Haber process • Hypernyms: ↑industrial process …
105sulfite process — noun : an acid process for making pulp from wood in which chips are cooked at high temperature and pressure in a solution of bisulfite of calcium, magnesium, sodium, or ammonium * * * Chem. a process for making wood pulp by digesting wood chips… …
106high pressure foaming — A process in which plastics are foamed under high pressure (6 50 bar). The opposite is low pressure foaming …
107low-pressure foaming — A process in which plastics are foamed under low pressure (1 5 bar). The opposite is high pressure foaming …
108oil transfer process — noun : a photographic printing process in which an image in oily ink produced in the oil process is transferred to another support (as paper) by contact and pressure …
109oxyl process — ˈäksə̇l noun Etymology: ox (I) + yl : a modified Fischer Tropsch process for synthesizing alcohols from carbon monoxide and hydrogen under pressure in the presence of a usually iron catalyst compare oxo process 2 …
110synthetic ammonia process — noun : any of several processes (as the Haber process or the Claude process) for the manufacture of ammonia from nitrogen and hydrogen under conditions of high temperature and pressure in the presence of a catalyst (as a promoted iron catalyst)… …
