GB1174378A - Preparation of Alkali Metal Aminocarboxylates. - Google Patents

Preparation of Alkali Metal Aminocarboxylates.

Info

Publication number
GB1174378A
GB1174378A GB3659068A GB3659068A GB1174378A GB 1174378 A GB1174378 A GB 1174378A GB 3659068 A GB3659068 A GB 3659068A GB 3659068 A GB3659068 A GB 3659068A GB 1174378 A GB1174378 A GB 1174378A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
aminocarboxylates
steam
pot
reaction mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3659068A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WR Grace and Co
Original Assignee
WR Grace and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WR Grace and Co filed Critical WR Grace and Co
Publication of GB1174378A publication Critical patent/GB1174378A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/67005—Apparatus not specifically provided for elsewhere
    • H01L21/67011—Apparatus for manufacture or treatment
    • H01L21/67144—Apparatus for mounting on conductive members, e.g. leadframes or conductors on insulating substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J14/00—Chemical processes in general for reacting liquids with liquids; Apparatus specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00389—Controlling the temperature using electric heating or cooling elements
    • B01J2208/00407—Controlling the temperature using electric heating or cooling elements outside the reactor bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/185—Details relating to the spatial orientation of the reactor vertical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/14—Integrated circuits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Laser Beam Processing (AREA)
  • Lenses (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Abstract

1,174,378. Alkali metal aminocarboxylates. W. R. GRACE & CO. 31 July, 1968 [31 Aug., 1967], No. 36590/68. Heading C2C. Ammonia-free alkali metal aminocarboxylates are prepared by reacting an aminonitrile and an alkali metal hydroxide in an aqueous medium at 100-150‹ C. and subjecting the reaction mixture to countercurrent contact with steam. The alkali metal hydroxide used may be NaOH or KOH and preferably the reaction mixture is treated with H 2 O 2 as it is contacted with steam. In the examples tri-sodium nitrilotriacetate is obtained by passing nitrilotriacetonitrile and NaOH via pipes 10 and 9 respectively into the reaction kettle 8 from which the product passes down through loose packing material 2 while steam generated from water in pot 16 rises upwards and the tri-sodium salt is collected in pot 16 and discharged through outlet 18.
GB3659068A 1967-08-31 1968-07-31 Preparation of Alkali Metal Aminocarboxylates. Expired GB1174378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66474167A 1967-08-31 1967-08-31

Publications (1)

Publication Number Publication Date
GB1174378A true GB1174378A (en) 1969-12-17

Family

ID=24667270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3659068A Expired GB1174378A (en) 1967-08-31 1968-07-31 Preparation of Alkali Metal Aminocarboxylates.

Country Status (4)

Country Link
DE (2) DE1793152A1 (en)
FR (1) FR1581260A (en)
GB (1) GB1174378A (en)
NL (1) NL6811443A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152500A (en) * 1984-01-03 1985-08-07 Monsanto Co Producing nitrilotriacetate salts from nitrilotriacetonitrile

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10339636B4 (en) * 2003-08-28 2013-02-07 Limo Patentverwaltung Gmbh & Co. Kg Method and device for simultaneous laser welding
US10247952B2 (en) * 2015-03-04 2019-04-02 Coherent Lasersystems Gmbh & Co. Kg Polarization-controlled laser line-projector
CN114832748B (en) * 2022-04-07 2024-03-12 莒南国泰化工有限公司 Chloroethylene carbonate production facility

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152500A (en) * 1984-01-03 1985-08-07 Monsanto Co Producing nitrilotriacetate salts from nitrilotriacetonitrile

Also Published As

Publication number Publication date
FR1581260A (en) 1969-09-12
DE1790039A1 (en) 1971-11-25
DE1793152A1 (en) 1972-01-05
DE1790039C3 (en) 1973-10-04
NL6811443A (en) 1969-03-04
DE1790039B2 (en) 1973-03-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees